Accelerometer features integral electronics.
Press Release Summary:
Model 257/257M1 ISOTRON® piezoelectric accelerometer has hermetically sealed top connector and welded housing for use in demanding environments. Featuring PIEZITE® Type P-8 crystal element operating in annular shear mode, accelerometer exhibits excellent thermal transient stability. It uses built-in low noise microelectronic amplifier to transmit its low impedance voltage output through same 2-wire cable that supplies required constant current power.
Original Press Release:
Endevco's Model 257/257M1 Piezoelectric Accelerometer Combines High Performance and Low Cost
SAN JUAN CAPISTRANO, Calif. - July 3, 2002 - Endevco's Model 257/257M1 ISOTRON® piezoelectric accelerometer with integral electronics offers hiqh performance at a low cost. Designed specifically for structural and vibration measurements, the accelerometer's liqht weiqht (1.9 gm) effectively minimizes mass loading effects while a hermetically sealed top connector and welded housing assure long-term reliability in the most demanding environments. The Model 257/257M1 is designed for stud mounting, utilizing an 8-32 or 5-40 integral stud.
Featuring Endevco's unique PIEZITE® Type P-8 crystal element operating in annular shear mode, the Model 257/257M1 exhibits excellent thermal transient stability. This accelerometer uses a built-in low noise microelectronic amplifier to transmit its low impedance voltage output through the same two-wire cable that supplies the required constant current power.
Endevco's Signal Conditioner Models 4461B, 133, 2792B, 2793, 2775B or OASIS 2000 Computer-Controlled System are recommended for use with this accelerometer.
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.
