Friday, August 21, 2009

IR Camera

Smart long wave infrared camera

Smart cameras come to the world of infrared imaging with the new Xenics Gobi-384 compact LWIR camera from Stemmer Imaging. The affordable Gobi-384 features a unique on-board digital signal processor for improved real-time image processing. The Gobi offers a high degree of flexibility in terms of frame rate, user interface and temperature range, enabling the user to adapt it to various industrial settings and tasks.

This compact smart camera can be readily fitted into industrial environments for process control and used as an IP network camera or directly connected to a PC or video monitor. Other applications include R & D and medical imaging.

Operating in the 8-14 micron wavelength range, the Gobi-384 camera can detect temperature differences as small as 0.05˚C. The 384 x 288 pixel uncooled a-Si microbolometer detector array offers a 44% higher pixel count than other systems based on the same detector technology. The Gobi-384 is fully compatible with Thermography Studio™ software for dynamic analysis and recording. Thermography Studio features a library of powerful tools that enable the sophisticated analysis of thermal behavior for a wide range of objects and materials.

The camera offers flexibility of control and interfacing. It has both Ethernet (TCIP/IP) and CameraLink interfaces. A frame rate of up to 50 fps can be achieved over a a standard 100 Mbit Ethernet connection. A software development kit supporting C++, Visual Basic, LabView or Linux allows flexible programming in an open architecture. The Xeneth Advanced GUI allows live image view, storing of digital images and movies, digital zoom and selection of a region of interest, as well as display of data such as image histograms and line profiles.

Power Supply

600W Compact PCI Power Supply responds to customer demands
Class leading high power density gives users more value for money

Gresham Power Electronics has introduced the latest addition to its very successful Compact PCI power supply family, the cPCI-6U-600. By continuing to push the boundaries of high efficiency, high power density power supply design Gresham are responding to growing market demands for ever increasing power from the 6U cPCI footprint.

Emerging communications, broadcast and advanced multi-media applications require increasing amounts of power which until now has meant using multiple power supplies connected in parallel. By delivering 600W in the standard cPCI package users can free-up more rack space for revenue earning electronics.

Jake Moir, Managing Director of Gresham Power Electronics, comments; “In these challenging times we continue to seek to offer our customers greater value for money and products which allow them to maximise their own sales revenues. Greater power density in the standard cPCI package frees up space for increased functionality in the end product adding value for our customers. Employing the latest components and topologies ensures we do not sacrifice quality or reliability while increasing our market opportunities.”

Their complete range of cPCI products is fully compliant to PICMG 2.11 and offer hot-swap, N+1 redundant connection and active load current share. AC input versions are power factor corrected and have a universal 90-264VAC, 47-63 Hz input range, a 48VDC input version is also available which operates over the range 36-72VDC. Standard output voltages are 5V/65A +3.3V/80A +12V/12A -12V/1.5A and custom variants are possible.

This family of products are all RoHS compliant, feature ruggedised construction as standard and advanced status and control functions including remote inhibit, output fail alarm, over temperature warning, output remote sense, single wire current share and front panel LEDs indicate outputs OK and any fault condition.

Full international safety agency approvals are held including UL/cUL60950, EN60950, CE Mark (LVD) and EN55022 Level B. Operating temperature range is -5C to +55°C with de-rating at 2.5%/°C up to +71°C, cooling requirements are 400LFM of airflow and MTBF is calculated as >400,000 Hours per Belcore 332 issue 6.

Gresham Power’s cPCI product range represents the industry's leading cPCI AC/DC power supplies, delivering from 350 to 600W of continuous power. Gresham Power’s unique design uses two converters in parallel, one for the +3.3V and the other for the +5V. This design provides the flexibility for determining individual load requirements for each output independently enabling full load currents to be drawn.

Thursday, August 20, 2009

Safety trip

Featured in exida’s Integrated Safety Lifecycle Software
Safety Trip Alarm for Rapidly Emerging IEC 61508 Safety Applications

Moore Industries’ STA Safety Trip Alarm for IEC 61508 Safety Applications is now featured as a Logic Solver in exida’s exSILentia® integrated safety lifecycle software. The exSILentia software is a leading safety lifecycle engineering tool.

Part of Moore Industries’ FS FUNCTIONAL SAFETY SERIES, the STA performs as a Logic Solver and acts on potentially hazardous process conditions; it warns of unwanted process conditions and provides emergency shutdown or on/off control in Safety Instrumented Systems (SIS) and traditional alarm trip applications.

By including the STA in the exSILentia software tool, exida has provided competent functional safety practitioners a way to determine the STA’s applicability in specific safety-related applications. Exida is highly selective in choosing components for exSILentia’s equipment database. To include this instrument, the Functional Safety experts at exida had to review and approve all Failure Modes, Effects, and Diagnostic Analysis (FMEDA) data.

In the exSILentia tool, safety practitioners can select the 4-wire (line/mains-powered) STA as an economical Logic Solver that accepts a signal input from transmitters (current and voltage inputs), temperature sensors, resistance and potentiometer devices and more.

The STA can be configured for a wide variety of Safety Instrumented Functions (SIF) for safety related applications. The “high availability” alarm trip is designed for Safety Instrumented Systems up to SIL 2 and the firmware is suitable for use in a SIL 3 system, in a 1oo2 (one out of two) voting architecture.

It provides three failsafe alarm outputs. Two are configurable process alarms that trip when a monitored process variable falls outside of user-set high and/or low limits. The third alarm is a non-programmable, latching alarm that is activated if any internal faults are found by the unit's extensive internal diagnostics. This fault relay is also triggered if the input is faulty or broken.

The STA features industry-best 20-bit input resolution; long term stability of up to 5 years between scheduled calibrations; a rugged, industrial metal housing; and isolation and RFI/EMI protection that provides superior protection against the effects of ground loops, plant noise, and radio frequency and electromagnetic interference. The unit also features standard “transmitter excitation” that provides 24V power to a 2-wire transmitter.

Monday, August 17, 2009

Moisture analysis

New Advanced Quartz Crystal Microbalance Trace Moisture Analyser

Michell Instruments has expanded its range of sensing technologies by introducing the advanced quartz crystal microbalance technique for moisture measurement in gases. Their PMA2030 quartz crystal analyser is an ideal quality monitoring tool for air separators, industrial and high purity gas production processes.

The analyser is designed to provide highly reliable, fast and accurate measurement at trace moisture levels (ppbv and ppmv). The quartz crystal sensor of the PMA2030 will give a 63% response to a step change in moisture in less than 2 minutes (95% in less than 5 minutes).

The wide operating range – from 0.1 to 2000 ppmV – coupled with the fast response of the PMA2030 helps to monitor and protect processes to avoid damage to tools or finished products by enabling users to react quickly to fluctuations in moisture.

Crucially, the new analyser provides measurements that can be trusted throughout its operational life. The company's advanced quartz crystal technology, developed and refined over many years, gives a highly reproducible and linear response to changes in moisture content. This allows the PMA2030 to deliver class-leading accuracy of 5% of measured value in the range 0.5 to 500 ppmV. Its automatic calibration system, using an internal reference source, guarantees the sensor’s integrity and accuracy by cancelling out the effects of contamination.

The PMA2030 is also easy to use as its cutting-edge touch-screen panel provides a user-friendly and intuitive interface. Not only are the live measurement data and graph of the session always on view, they can also be downloaded to a conventional external USB storage device for traceability or analysis.

The PMA2030 analyser enhances the range of moisture sensing technologies currently available from Michell. Along with the metal oxide ceramic sensor, chilled mirror and capacitive technologies, the quartz crystal microbalance enables the customer to benefit from flexibility of choice between these complementary humidity measurement technologies.