Signal Conditioner suits multi-channel applications.

Press Release Summary:

Rack-mounted Model 482B, 8-channel amplifier card communicates with SMART ISOTRON® (IEEE P1451.4 TEDS) accelerometers and provides backwards compatibility for use with IEPE transducers and RCCs. Each card has independent microprocessor and programmable gain of 0-100 with accuracy of ±0.5% at 1 KHz for gains greater than 1. Features include selectable Butterworth 2-pole low-pass filter corners at 100 Hz, 1 KHz, 5 KHz, and broadband. Product is suited for modal testing on large structures.

Original Press Release:

Model 482B Transducer Signal Conditioner Designed for Multi-Channel Applications

SAN JUAN CAPISTRANO, Calif. - January 27, 2003 - Endevco Corporation, a leading designer and manufacturer of dynamic instrumentation, announced the availability of the enhanced Model 482B rack-mounted signal conditioner. The eight-channel amplifier card communicates with newly developed SMART ISOTRON® (IEEE P1451.4 TEDS) accelerometers, yet provides backwards compatibility for use with other Integral Electronic PiezoElectric (IEPE) transducers and Remote Charge Convertors (RCC). The 482B is designed for multi-channel modal testing on large structures such as airplanes, spacecraft, automobiles, bridges and heavy machinery.

Endevco's enhanced signal conditioner is part of the company's Optimal Architecture Sensor Interface System (OASIS 2000) product line. OASIS 2000 allows the interface of multiple sensor types by using the 400 Series family of signal conditioner cards, all housed in a 16-slot, 19" rack (Endevco Model 4990). 400 Series cards can be mixed or matched in any combination, giving maximum flexibility to customize any system configuration. Specifically, up to 16 Model 482B cards can be used in the Model 4990 rack, providing a powerful 128 channels of flexible, intelligent signal conditioning at a low per-channel cost.

The combination of SMART ISOTRONS and intelligent electronics make the 482B ideal for use in modal test labs. TEDS accelerometers contain all pertinent data, which is automatically loaded into a software database at the click of a button. Data entry errors are virtually eliminated and signal conditioning setup time is minimized. Each Model 482B card also has an independent microprocessor, providing the fastest means of data transfer possible with increased reliability.

The signal conditioner features a programmable gain of 0 to 100 with an accuracy of ±0.5% at 1 KHz for gains greater than 1. The 482B also has built-in, selectable Butterworth 2-pole low pass filter corners at 100Hz, 1KHz, 5KHz and broadband. In addition to an Open/Short ISOTRON Sensor fault detection, the signal conditioner has gain autoranging, digital electronic output channel identification, and a frequency response of 0.015 Hz to 100 KHz (-3dB corners).

Sensor-specific digital read/write data is in the form of the PIEEE-1451.4 Transducer Electronic Data Sheet (TEDS). TEDS data includes model number, serial number, transducer sensitivity, manufacturer, and date of last calibration. Endevco's Model 4990 rack provides the communication link (Ethernet or RS-232) between the PC and the Model 482B card. The system controlling program is a Windows based application software providing an extremely user-friendly interface.

Endevco is the world's leading designer and manufacturer of dynamic instrumentation for vibration, shock and pressure measurement. The company's comprehensive line of piezoelectric, piezoresistive, ISOTRON® and variable capacitance accelerometers are used to solve measurement problems in a wide variety of industries including aerospace, automotive, defense, medical, industrial and marine. Other products include pressure transducers, microphones, electronic instruments, and calibration systems.

Endevco has a factory-direct sales force in the U.S. and is represented in the rest of the world by Bruel & Kjaer. Bruel & Kjaer has offices in 55 countries and 7 accredited calibration centers worldwide. Endevco is a subsidiary of U.K.-based Meggitt PLC, an international group of companies renowned for their specialized engineering skills.

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