Global product launch!

Meggitt Sensing Systems,  has announced the global market launch of the Endevco® model 126, a low-cost, microprocessor controlled, three-channel DC differential voltage amplifier and signal conditioner.  This model is designed with flexible setup and a wide bandwidth to 200 kHz (-3 dB corner), allowing it to be used with Endevco®  bridge-type or differential output accelerometers and pressure transducers, or other industry models, across a variety of general purpose laboratory testing applications.

The Endevco® model 126 incorporates variable gain adjust

ment, shunt calibration capability, as well as automatic zero adjustment capability for elimination of inherent DC offset voltage. The unit also features three independent operating channels with individually programmable excitation voltage level settings from 0-12 VDC; differential output and gain adjustment range from 0 to 999.9; an independent filter selectable function; and BNC output connectors, for easy hookup to readout and recording instruments. In addition, remote sense leads are provided to eliminate errors caused by driving long cable lengths.

Common applications for a high amplitude measurement system which includes the Endevco® model 126 DC sensor vibration amplifier and signal conditioner, along with appropriate sensors, include drop testing; consumer electronic products testing; metal-to-metal impacts; penetrator tests, structural blast loading; weapons data recorder testing; automotive crash test; and impact testing. In addition, all Endevco® signal conditioners are accompanied by a five-year comprehensive product warranty.

Acoustic measurements products guide

Meggitt Sensing Systems, a Meggitt group division, has announced the global release of its new “Endevco® Acoustic Measurement Products Selection Guide”, a single comprehensive product specification resource, detailing Meggitt’s complete range of Endevco® acoustic sensors and instrumentation for automotive NVH, cabin noise, vibro-acoustic testing, appliance noise evaluation, environmental noise analysis, building acoustics, appliance noise evaluation, wind tunnel testing and other critical measurement applications.

Endevco® prepolarized condenser measurement microphones are offered in free-field, pressure, low-cost   array and random incidence types and may be used to meet IEC and ANSI standards. Array microphones offer a lower overall per channel measurement cost and are directly compatible with ISOTRON® (IEPE-type) signal conditioning, facilitating their use as drop-in replacements within existing accelerometer test system set-ups for as-needed precision noise measurements. Models may be purchased as stand-alone units or in a microphone and low-noise preamplifier combination with TEDS for larger channel count applications. Available for use with Endevco® precision measurement microphones are a full range of low-noise ISOTRON® preamplifiers, handheld calibrators and accessories.

Global launch of accelerometer!

Meggitt Sensing Systems has announced the global market introduction of the Endevco® model 2228C, a rugged low-mass triaxial piezoelectric accelerometer, designed to suit a variety of general vibration testing requirements. The versatility and performance characteristics of the model 2228C allow it to be used in R&D, metrology, lighting systems, wireless equipment, space shuttle and solid rocket booster electronics assemblies, helicopter engines, combustion turbines and vacuum pump applications, among others.

With a sensitivity of 2.8 pC/g, the Endevco® model 2228C is designed to provide high-reliability vibration measurements on three orthogonal axes with 10-32 receptacles to allow data collection from three separate output connections. These connections also offer a visual reference for the orthogonal axes being measured. With a total package weighing just 15 grams, the accelerometer effectively minimizes mass loading on small structures and objects. Units are designed to reliably operate over a temperature range of -55˚C to +177˚C (-67˚F to +350˚F), with mounting via two-hole screw or adhesive. The accelerometer is a self-generating device that requires no external power source for operation. Signal ground is isolated from the mounting surface of the unit. Low-noise, flexible coaxial cables are supplied for error-free operation. In addition, the Endevco® model 2228C is available at specially discounted rates as part of the –R replacement sensor program.

Recommended accessories for use with the Endevco® model 2228C include the model 133 three-channel piezoelectric signal conditioner; the model 2771C remote charge converter; the model 2775B signal conditioner; model 6634C vibration amplifier; or the model 4990A multi-channel signal conditioner.

Field mike!

Meggitt Sensing Systems Launches New Endevco ½” Free-Field Microphone and Preamplifier Set with TEDS Capabilities

Meggitt Sensing Systems has introduced the Endevco® model EM46AE, a combined 1/2” free-field pressure microphone and iTEDS enabled preamplifier (per IEEE 1451.4) set, designed for general purpose and larger channel count precision acoustic measurements within a variety of applications, including vehicle pass-by noise testing; environmental noise analysis; building acoustics; and appliance and other consumer product noise evaluations.

The Endevco® model EM46AE comes in a preassembled kit, consisting of a high-precision condenser microphone and preamplifier, both constructed of stainless steel for high durability. Units are assembled in a clean room environment to avoid contamination of the contacts and are calibrated together to form a reliable acoustic measurement system. These combined units are fully repairable. With a frequency response from 3.15 Hz to 20 kHz and a wide dynamic range of 14 dBA to 135 dB, the Endevco® model EM46AE microphone set is designed according to guidelines set forth by the IEC 61094 Class 1 standard, fulfilling the highest industry standards for acoustic product reliability and precision. Incorporation of iTEDS technology allows for the microphone and preamplifier to be recognized by any smart-transducer compatible input module. When connected, the analyzer will derive information such as microphone type, serial number and sensitivity, which is able to be read by the application software for simplified test setups.

Recommended accessories for use with the Endevco® model EM46AE include the model EM42AA handheld pistonphone calibrator, which facilitates field checks of complete acoustic measurement systems, as well as the in-house calibration of measurement microphones; the model 4416B ISOTRON® power supply (2-20 mA); and the model 133 three-channel signal conditioner. All Endevco® acoustic sensors and instrumentation are also backed by a five-year comprehensive product warranty.

High-sensitivity absolute pressure transducers

Meggitt Sensing Systems has introduced the Endevco® model 8530C series, a family of high-sensitivity piezoresistive absolute pressure transducers, offering high output and a non-linearity of 1% at 3x over-range in a highly compact (3.86 mm face diameter) package. The unique design and performance characteristics of this series make them ideal for use in hydraulic and pneumatic pressure measurements, automotive airbag testing and transmission testing applications.

Offered in ranges of 15, 50 and 100 psia with 225 mV full scale output and high resonant frequencies of 180 kHz (15 psia), 320 kHz (50 psia) and 500 kHz (100 psia), the Endevco® model 8530C series features an active four-arm strain gage bridge, diffused into a sculpted silicon diaphragm, for maximum sensitivity and wideband frequency response. The volume behind the diaphragm is both evacuated and glass sealed to provide an absolute pressure reference. The transducers also feature integral temperature compensation, providing stable performance over a temperature range of -18°C to +93°C (0°F to +200°F). Units are supplied with an integral cable, with custom lengths available upon request. A 10-32 UNF-2A mounting thread is standard, with an integral four-pin connector available with the “M37” option.

Endevco® model 8530C series transducers are rugged to 20,000 g shock and offer an industry best-in-class minimum 4X burst pressure, with non-linearity, non-repeatability and pressure hysteresis errors of less than 0.50% FSO for all ranges, making it one of the industry’s most accurate pressure transducer series. Recommended accessories include the model 136 three-channel signal conditioner, model 4430A signal conditioner, or model 4990A (Oasis).

Miniature high-frequency piezoelectric accelerometer is best seller

Meggitt Sensing Systems, a Meggitt group division, has announced that the Endevco® model 2222C was the company’s top-selling piezoelectric accelerometer of 2010.

With a sensitivity of 1.4 pC/g and frequency range of 1 to 10k Hz (±1 dB), the high-impedance model 2222C is designed for general purpose vibration measurements of small structures or objects, such as those typically encountered with scale models, circuit boards and disk drives. The sensor’s overall weight of 0.14 gram (not including cable) effectively minimizes mass loading concerns, with a shock limit that is two times that of any other accelerometer of its size and type on the market. The model 2222C is a self-generating, adhesive mounted device that requires no external power source for operation. Units are ground isolated from the sensor mounting surface. A specially designed low-noise coaxial cable and sensor installation/removal tool are supplied for error-free operation.

Recommended accessories for use with the Endevco® model 2222C include the model 2961 triaxial mounting block, model 133 three-channel signal conditioner, model 2775B signal conditioner and model 2771C-XX inline charge converter. Due to the sensor’s versatility and performance characteristics, it is ideal for any shock and vibration monitoring applications within non-harsh conditions, including general purpose in-house laboratory testing; drop testing and vibration monitoring of portable electronics; flight vehicle or UAV vibration monitoring; and automotive component durability testing.

The Endevco® model 2222C is accompanied by a comprehensive five-year product warranty and is available at specially discounted pricing as part of the Endevco® competitive trade-in (CTi) program.

Variable capacitance accelerometers

Meggitt Sensing Systems Introduces TEDS Capabilities into

Meggitt Sensing Systems has introduced Transducer Electronic Data Sheet (TEDS) capabilities into its industry best-selling Endevco® model 7290D series, allowing it to be used within larger channel count applications. The model 7290D series is a high-accuracy, variable capacitance (VC) accelerometer family, offering exceptional thermal stability, reliability and performance within flight test, engine testing and other extreme temperature testing environments.

Offered in five different models with available measurement ranges from 2 g to 100 g, the patented design of the Endevco® model 7290D series (U.S. patents 4,574,327; 4,609,968; and 4,999,735) incorporates a VC sensing element with gas damping and internal over-range stops, allowing the sensor to survive significant shock and acceleration loads of up to 10,000 g, with 2.5% total dynamic accuracy.  Units feature excellent non-linearity, including hysteresis, of typically 0.2% for ranges of 2 g to 50 g.

Integral to each accelerometer is a custom signal conditioner, enabling the device to accept input voltages from 8V to 30V with a high level, low impedance output. The ±2.25 V differential output (single-ended output optional) is DC coupled at a bias of approximately 2.5V. In order to maintain stringent thermal characteristics and high accuracy, a custom ASIC provides factory programmable temperature compensation, achieved via five-point linear fit algorithm, for both thermal sensitivity and thermal zero shifts. Units are integrally temperature compensated from -55° to +125°C, to ensure temperature accuracy over the full military range.  TEDS capabilities (conforming to IEEE 1451.4) allow for onboard storage of serial number and calibration data, for simplified test setups with reduced errors.

All Endevco® model 7290D series units are shipped standard with an integral cable of customizable length. Models are also available with an optional triaxial mounting block, the Endevco® model 7990. Recommended accessories for use with the Endevco® model 7290D series include the model 136 three- channel signal conditioner; the model 4430A bridge transducer signal conditioner; or the model 4990A (Oasis) multi-rack based signal conditioning system.

Ultra low-noise remote charge converter

Meggitt Sensing Systems has announced the re-launch of Endevco® model 2771C-XX, an ultra-low noise remote charge converter (RCC), designed to facilitate even more precise measurements from piezoelectric transducers within mechanical system health monitoring, nuclear power plant/regenerative energy and environmental testing applications. This highly popular model is now being offered at a lower price and as a lower noise drop-in replacement for legacy Endevco® 2771B models or other industry equivalents.

Offered with three individually fixed gains of 0.1 mV/pC; 1.0 mV/pC; and 10 mV/pC, the model 2771C-XX offers a rugged two-wire (IEPE), single ended design operating from constant current power (4-20 mA), with a broadband noise range down to 5µ Vrms and frequency response of 0.4 to 50 kHz. Both RCC signal output and input current are carried along the same wire. Housed in a rugged, small package, units are designed to withstand shock loads of up to 100 g peak and are radiation tested to 1.0 MRads.

Because of its low impedance voltage, signal output from this unit is less susceptible to noise pick-up. Also, shunt capacitance of the cable connecting model 2771C-XX to the main signal conditioner does not significantly affect system noise or sensitivity. It can also support TEDS (per IEEE P1451.4) for smart sensor and larger channel count applications, and includes an available M1 Version with male BNC to facilitate easy panel mounting. The RCC is designed for direct compatibility with both Endevco® and other industry piezoelectric charge output accelerometers.

Analog and Digital Servo Inclinometer

Meggitt Sensing Systems has announced the North American market introduction of the Sensorex SX41100 series, a high-performance servo inclinometer family featuring analog and digital outputs and a maximum linearity error of less than ±0.02% FS. The series is designed to provide high-precision angular measurements within extreme testing environments, such as those typically found within civil structural alignment, crane and offshore platform safety systems, roadway and rail track leveling applications.

The highly robust Sensorex SX41100 series is designed to provide an output signal, proportional to the angle being measured, over a range of ±1° to ±70°. The series is also part of the company’s best-selling Rugged Enhanced Digital Sensor (REDS) family, incorporating Meggitt’s own proprietary Sensorex digital hybrid compensation circuit design (HCN module), resulting in high-performance inclinometers with ±5V analog, 4-20 mA or RS232 and RS485 ASCII digital outputs and built-in active digital temperature compensation, reliably operating over a temperature range of -40° to +85°C (-40° to +185°F).  Incorporation of an inertial mass with servo feedback, optical position pick-up and friction free mounting allow the Sensorex SX41100 series to provide high accuracy with excellent long term stability and high reliability. Because the inertial mechanism is immersed in oil, units have high shock and vibration resistance with a good damping factor.  Units also operate from a 9-30V unipolar power supply and feature IP65 environmental sealing.  Digital versions are delivered with software and digital data transmitted in ASCII format, allowing for direct communication with a standard PC, along with user-selectable parameters of data acquisition and display.

All Sensorex SX41100 series servo inclinometers are accompanied by a two-year comprehensive product warranty and are available thru Meggitt’s San Juan Capistrano, California, USA and Archamps, France-based facilities.

Accelerometers for implantable medical device applications

Meggitt Sensing Systems has announced the expanded availability of the Endevco® 12M series, a family of highly compact, high-sensitivity surface mount piezoelectric accelerometers with no external power requirements, offering 20 years of proven pedigree for high-reliability acceleration measurements within high-volume, implantable OEM medical device and equipment applications.

Weighing just 120 mg and reliably operating in temperatures of up to +150°C, the Endevco® model 12M series features the incorporation of Meggitt’s own proprietary Piezite-type P-8 bimorph sensing element, operating in bender mode. This material offers low base strain sensitivity, low pyroelectric output and extremely high charge output versus size. Advanced manufacturing techniques and materials R&D have propelled Meggitt forward as an industry innovator in these types of piezoelectric sensing technologies. As a result, models within the Endevco® 12M series are routinely incorporated into implantable medical device designs to support such critical applications as patient activity indicators, cardiac pacemaker and defibrillator rate response, implanted pain management device monitoring, blood pressure monitoring, blood glucose monitoring, artificial joint pressure measurements and external and implanted drug therapy systems.

Since 1994, more than six million Endevco®12M series sensors have been successfully incorporated into medical devices, as a means of improving device quality and ultimately, patient care.

Piezoresistive dynamic pressure transducer

Meggitt Sensing Systems has announced the global market introduction of the Endevco® model 8510C, a rugged, miniature, high-sensitivity, high resonance gage piezoresistive pressure transducer, ideal for dynamic measurements.

Offered in ranges of 15, 50 and 100 psig with 225 mV full scale output, the Endevco® model 8510C offers high output within a very small (3.86 mm diameter face) and lightweight (2.3 grams) package. The highly rugged model 8510C pressure transducer also features excellent non-linearity of <1% to three times over-range with 4X minimum burst pressure, 20,000 g shock resistance and high stability in temperature transients. Meggitt’s Endevco® pressure transducers feature a four-arm strain gage bridge ion implanted into a silicon diaphragm, designed for a wideband frequency response.  Endevco’s unique sculptured diaphragm produces twice the sensitivity than traditional flat diaphragms resulting in improved resolution  Integral hybrid temperature compensation provides stable performance over a temperature range of -18°C to +93°C (0°F to +200°F). The Endevco® model 8510C features a 10-32 UNF-2A mounting thread and comes standard with a 30-inch integral cable, with custom lengths available upon request. Models also come standard with a vent tube that can be connected to any standard reference manifold, used for differential pressure measurements, or referenced to the ambient atmosphere.

The Endevco® model 8510C is designed for a wide variety of aerospace, automotive and industrial measurements which require a combination of small size, high sensitivity and broad frequency response. Typical applications include process control, blast testing, automotive airbag inflation testing, rocket motor analysis, jet engine inlet pressure measurements, vehicle transmission testing and hydraulics measurements. Recommended accessories include the model 136 three-channel DC signal conditioner, model 4430A bridge transducer signal conditioner or 4990A (Oasis) multi-channel signal conditioner.

Benchtop signal conditioner

Has fixed amplitude output signal and real-time front panel level meter for environmental testing and ESS applications

Meggitt Sensing Systems has introduced the Endevco® model 2775B, a high-reliability benchtop signal conditioner with fixed amplitude output signal and real-time front panel level meter, for use within environmental test laboratory, aerospace test cells, ESS, calibration systems and general vibration laboratory testing applications.

The model 2775B is designed to accept inputs from ISOTRON® (IEPE-type) transducers, piezoelectric transducers, and remote charge converters (RCCs), with a full scale input range from 0.01 to 100,000 engineering units (EU’s) and a wide sensor sensitivity input range of 0.01 to 10,000 mV/EC and RC/EU, with a gain range of 0 to 10,000 and a frequency response bandwidth of 120 kHz (-3 dB corner). Units offer AC, DC and servo outputs and operate from 90-240 VAC input power, with selectable ground isolation for cleaner data collection. With capability to install up to six units in an optional 19-inch rack accessory (model 4948A), the flexible setup of the model 2775B is accomplished either manually via the unit’s front panel, or via the unit’s integral RS232 interface using the supplied optional application software (model 35933A).  An additional filter card (model 35771) or filter with single/double integration (model 35818) is also possible.

Miniature LDVT’s

For embedded automotive and laboratory test bench applications

Meggitt Sensing Systems has announced the North American market debut of the Sensorex model SX9W3, a rugged, high-accuracy miniature linear variable displacement transducer (LDVT), designed for high-precision displacement measurements within a variety of embedded automotive and general laboratory test bench applications.

With an overall length of just 26 mm (with body and core at null position) and a 9 mm diameter, the instrument offers a maximum linearity error of less than ±0.25% of full scale, with option to further reduce to ±0.15% of full scale. The transducers are designed to reliably operate over an operating temperature range of -40°C to +125°C (-40°F to +257°F) and are environmentally sealed to IP65. Meggitt’s Sensorex LVDT’s have no wearable parts for friction-free operation, while offering infinite resolution, long service life and high measurement repeatability. Units are highly resistant to shock and vibration, impervious to external magnetic fields and are designed to be compatible for use with all industry standard LVDT signal conditioners. The low mass of the Sensorex model SX9W3 core LVDT assembly makes the transducer ideal for use in applications where high-reliability displacement measurements are required, though where mass, weight and space constraints may be of concern.

Recommended accessories for the Sensorex model SX9W3 include the model SX3120 DIN rail signal conditioner for industrial applications, as well use of an MCHP conditioner for integration with electronic boards. In addition, a spare core assembly, mounting flange, and custom calibration and core assemblies are available upon request. All Sensorex model SX9W3 miniature LVDT’s are accompanied by a two-year comprehensive product warranty and are available thru both Meggitt’s San Juan Capistrano, California, USA and Archamps, France-based facilities

Low-cost array mikes

Automotive, aerospace and general test & measurement applications

Meggitt Sensing Systems has announced the introduction of Endevco® models EM40PH and EM40PL, two low-cost free-field pre-polarized array microphones, designed for multi-channel acoustic measurements of sound power; sound pressure levels and frequencies; sound-field analyses; and concurrent spatial and transient measurements within the audible range in aerospace, automotive and test & measurement applications.

Endevco® models EM40PH and EM40PL offer a wide frequency range of up to 20 KHz.  The model EM40PH is offered with a high sensitivity of 50 mV/Pa and a large dynamic range of up to 135 dB, while the model EM40PL is offered with a low sensitivity of 10 mV/Pa and a large dynamic range of up to 150 dB.  Their highly durable design incorporates use of an SMB connector for ease of test setup assembly and seamless integration with most data acquisition systems. ISOTRON® (IEPE) capabilities allow Endevco® array microphones to be used interchangeably with IEPE-type accelerometers within the same test setups for added convenience. In addition, ISOTRON® microphones have no additional power supply requirements when used within standard 2-20 mA constant current powered systems. Incorporation of TEDS technology allows a microphone to be recognized by any TEDS compatible input module, allowing an analyzer to derive information about microphone type, serial number and sensitivity, which can then be read by the application software. Close manufacturing tolerances and TEDS capabilities provide models EM40PH and EM40PL with the major advantage of a high degree of interchangeability within multiple array matrices.

Endevco® models EM40PH and EM40PL are ideal for use in larger-channel count acoustic measurement applications, such as near field acoustic holography; trending and frequency analysis; white goods testing; automotive and aerospace NVH, or as a lower-cost alternative to a Type 1 compliant microphone in general acoustic testing.  Recommended accessories include the Endevco® model EM42AA handheld pistonphone calibrator and the model 133 three-channel signal conditioner.  All Endevco® acoustic sensors and instrumentation are backed by a five-year comprehensive product warranty.

New accelerometer

Endevco® Low Mass Piezoresistive Accelerometers for cost-effective general purpose shock testing

Meggitt Sensing Systems has announced the global market introduction of the Endevco® model 7287, a small footprint, very low mass piezoresistive accelerometer weighing less than one gram, designed for the cost-effective measurement of long duration transient shocks, such as those found in product and packaging drop testing, shipping container shock testing, jack hammer testing and high-g destructive testing applications.

With a measurement range of 2,000 g, 200 mV full scale output and a high resonance frequency of more than 20,000 Hz, the Endevco® model 7287 utilizes a MEMS sensing element incorporating integral mechanical stops and features a small, lightweight, easy-to-mount package for minimal mass loading of the test structure. This monolithic sensor design offers ruggedness, stability and reliability with broad frequency response from DC to 4,000 Hz at ±5%, with non-linearity of <1% and ruggedness to 10,000 g shock. The Endevco® model 7287 has also minimum damping, thereby producing no phase shift over the useful frequency range.

The design of the Endevco® model 7287 has drawn upon decades of proven experience in manufacturing these types of sensors for the automotive crash test market, with successful technology that has now been carried over into the general test and measurement realm. As a result, the high-reliability of the model 7287 ensures that critical data are recorded upon demand at very low cost. Units are available with adhesive mounting or integral bracket for screw mounting and are supplied with a strong PVC jacketed cable in standard lengths. Recommended accessories for the Endevco® model 7287 include the model 136 three-channel DC signal conditioner, model 4430A bridge transducer signal conditioner or 4990A (Oasis) multi-channel signal conditioner.

Dual electromagnetic/piezoelectric structural excitation system

Meggitt Sensing Systems has announced the new market introduction of the Wilcoxon Research model F4/F7, a dual piezoelectric and electromagnetic vibration system, or “shaker”, designed to provide wide frequency range structural excitation; simulate external forces; determine structural resonance frequencies; and provide structural characterizations under excitation within aerospace, automotive and general research and testing applications.

The unique design of the Wilcoxon Research model F4/F7 combines a high-frequency piezoelectric vibration exciter (model F7) encircled by a low-frequency electromagnetic vibration exciter (model F4). Units incorporate a transducer base, containing a force gauge for test structure force monitoring; and an accelerometer, for measuring resultant motion. Transducer signals can be fed into either read-out equipment or signal conditioners. The model F4 electromagnetic vibration generator provides low frequency excitation from 10 Hz to 7,500 Hz, whereas the model F7 piezoelectric vibration generator produces vibrational forces over a high frequency range of 500 Hz to more than 20 kHz, resulting in the net capability to provide high force-to-weight output and a continuous sweep from low to high frequencies of 10 Hz to more than 20k Hz, with excitation capabilities across the entire audio range.

The model F7 contains a stack of piezoelectric plates which requires a voltage step-up (impedance matching via matching network) for high force output levels. The model F4 includes an air-cooling feature, allowing it to be run at higher output levels for extended periods without overheating. Its lightweight coil and bobbin are rigidly attached to the F7 generator, and incorporate use of heavy cylindrical magnets, which are suspended by two rubber diaphragms. The added dynamic weight is relatively low, since the rubber suspended weight does not affect axial or rotational inertia of the vibration generator core above its 30 Hz system resonance frequency. In addition, the compact, lightweight model F4/F7 shaker can easily be attached directly to a test structure in any position without external supports. Two power amplifiers are required to provide a continuous sweep. Input and output cables are provided.

IMU launched in US

Meggitt Sensing Systems has announced the North American market debut of the Sensorex model SX43040, a rugged, high-performance MEMS triaxial inertial measurement unit (IMU) with integral digital hybrid compensation, designed to provide current rate of acceleration, gravitational force and degree of freedom (DOF) measurements, including changes in roll, pitch and yaw, across three orthogonal axes.

The Sensorex model SX43040 is both lightweight and compact and incorporates MEMS technology with no moving parts, ensuring high-reliability performance within extreme environments. With available measurement ranges from 2 g to 10 g and angular speed ranges from 50°/s to 1500°/s, the model SX43040’s integral digital hybrid compensation (DHC) module allows the IMU to achieve a very high accuracy of <±0.9% FS (gyro <±0.1% FS) after self-compensation of non-linearity, temperature drift, bias and misalignment errors. Bandwidth is fully user adjustable over a range of 0.1 to 100 Hz (-3 dB). Several outputs are simultaneously available, including digital RS485 Modbus RTU, ±5 V analog output and autotest pin, with setup parameters established via the digital interface. The Sensorex model 43040 is designed to reliably operate over a temperature range of -40°C to +75°C (-40°F to +167°F) with a built-in self-test feature on all three axes, ensuring added measurement reliability. In addition, all these IMU’s are accompanied by a two-year comprehensive product warranty and are available thru both Meggitt’s San Juan Capistrano, California, USA and France-based facilities.

With its high-accuracy measurement capabilities, the Sensorex SX43040 is ideal for use a number of testing and on-board applications, such as flight test, road and rail vehicle behavioral studies, control and stabilization, flight control and navigational back-up on aircraft or watercraft, or in any application where rate of acceleration or gravitational force measurements may be required to a high degree of accuracy

Miniature high intensity piezoresistive pressure microphone

Meggitt Sensing Systems has introduced the Endevco® model 8510B, a miniature, rugged, high-sensitivity piezoresistive pressure microphone, designed for the precision measurement of high-intensity sound within a variety of demanding environments.

With available ranges of 1, 2 and 5 psig, the Endevco® model 8510B offers a 300 mV full scale output and a range of at least 100 to 190 dB SPL, in a highly rugged four-active arm strain bridge design that is diffused in a sculptured silicon diaphragm. This miniature pressure microphone offers integral temperature compensation from -18°C to +93°C (0 to +200°F), ensuring measurement accuracy over its full temperature range with excellent linearity, even at three times over-range. Units also offer high resonance frequencies for accurate measurements over the full audio range, with five times minimum burst pressure and 20,000 g shock survivability. These technical attributes make the Endevco® model 8510B the industry’s highest performing pressure microphone of its kind on the market today.

The new pressure microphone uses a 10-32 thread (metric threads available on custom order) for convenient mounting within space constrained environments, and also permits flush mounting on flat or contoured surfaces for boundary layer measurements in flight test, wind tunnels and engine inlet acoustic studies. A 30-inch integral cable is standard, with custom lengths available on request. For customer convenience, the model 8510B comes standard with a vent tube, which can be vented to the ambient atmosphere or connected to a standard reference manifold. Recommended for use with the Endevco® model 8510B are the model 136 three-channel signal conditioner, model 4430A signal conditioner, or the model 4990A (Oasis), all available from Meggitt Sensing Systems.

With its exceptional ruggedness, sensitivity and high output characteristics, the Endevco® model 8510B is ideal for use in applications such as blast testing, rocket motor acoustic studies, engine inlet acoustic studies, shock wave studies, chemical reactor monitoring and aerodynamic studies, among others.

High temp gas turbine vibration monitoring

Meggitt Sensing Systems has announced the availability of the Endevco® model 6222S series, a high-temperature piezoelectric accelerometer family, designed for high-reliability vibration monitoring in helicopter Health & Usage Monitoring Systems (HUMS); ground and onboard aircraft engine monitoring; and ground-based gas turbine engine monitoring applications.

Available in three models, with sensitivities of 20, 50 and 100 pC/g and choice of three ruggedized connector styles, the Endevco® model 6222S series offers high sensitivity and reliability in a low-profile package. Models feature the company's own proprietary Isoshear® construction, which significantly reduces transient temperature and base strain outputs, while maintaining a high mounted resonance and continuous operation in temperatures of up to +260°C (+500°F) with long Mean Time Before Failure (MTBF). The Endevco® model 6222S series comes with a standard ARINC three-point mounting configuration, three mounting bolts and is designed with a rugged two-pin 7/16-27 UNS-2A threaded receptacle with an available three-pin option. As a self-generating device, the sensors require no external power for operation.

The model 6222S series provides a balanced differential output, allowing them to be used with any industry differential charge amplifier. This unit is designed to be compatible with the Endevco® 6917B and 6917D series of shielded, softline cable assemblies.

This product family has proven industry pedigree, with more than 13,900 units shipped to date.

Expanded sensor offering

Meggitt Sensing Systems announces expanded product line offerings.

Meggitt Sensing Systems has expanded the availability of its products through the company’s San Juan Capistrano (CA US) facility, to include Meggitt’s Endevco®, Sensorex, Vibro-Meter and Wilcoxon Research product lines, all offered under one umbrella.

This recent product line inventory expansion allows customers to now order sensors and instrumentation for aerospace, automotive, industrial, R&D and test & measurement markets directly through the facility as a single source, with fully dedicated customer service, sales and applications engineering support for all product lines. Available sensing technologies include high-performance piezoelectric, piezoresistive and variable capacitance accelerometers; shock and vibration sensors; dynamic and static pressure transducers (piezoelectric and piezoresistive); acoustic sensors and related instrumentation; displacement sensors, servo accelerometers, inclinometers, inertial measurement units, LVDT’s and other position sensing technologies; portable vibration monitors for condition monitoring; electromagnetic and piezoelectric shakers; conditioners; rotating machinery vibration amplifiers; calibration systems and services, as well as a full range of compatible cables and accessories.