Triaxial Piezoresistive Accelerometer is suitable for crash testing.

Press Release Summary:

Miniature Model 7268B is for applications requiring minimal mass loading and broad frequency response. It measures 0.5 x 0.5 x 0.4 in., weighs 8 g, and has 3 micro-machined sensors. Two active arms and two internal precision fixed resistors provide for shunt calibration, while internal diodes furnish ESD protection. Available in +/-500 g or +/-2000 g models, accelerometer meets SAE J211 specs for anthropomorphic dummy instrumentation.

Original Press Release:

Model 7268 Triaxial Piezoresistive Accelerometer Ideal for Applications Requiring Minimal Mass Loading and Broad Frequency Response

SAN JUAN CAPISTRANO - April 15, 2002 - Endevco's new Model 7268B is a miniature triaxial piezoresistive accelerometer (measuring only .5" x .5" x .4") that is ideal for crash testing, flutter testing and other applications requiring minimal mass loading and a broad frequency response. The Model 7268B employs three advanced micro-machined sensors based on Endevco's proprietary sensor design, which features both high output and high resonance frequency. Two active arms and two internal precision fixed resistors provide for shunt calibration, while internal diodes furnish electrostatic discharge protection. Integral mechanical overtravel stops provide product ruggedness for years of reliable service. A single integral cable carries the 12 wires to the sensor modules. Available in either ±500 g or ±2000 g full-scale models, the accelerometer meets SAE J211 specifications for anthropomorphic dummy instrumentation. It was originally designed for use in the new World SID (side impact dummy).

The Model 7268B is under-damped, so negligible phase shift is present over the specified frequency range. With a frequency response extending down to DC (steady state) acceleration, the accelerometer is ideal for measuring long duration transients as well as short duration shocks. The Model 7268B weighs 8 gms. An Ml option provides a plastic cover to protect the unit's interior components.

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, variable capacitance, 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 is a subsidiary of U.K.-based Meggitt PLC, an international group of companies renowned for their specialized engineering skills.

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