LOW g Accelerometer for Aerospace and Automotive Environments

SAN JUAN CAPISTRANO, Calif. – September 19, 2003 – Endevco’s Model 7290A accelerometer is designed to measure low-level accelerations in aerospace and automotive applications. The accelerometer features hyperFLEX. coaxial cable assemblies which offer superior break strength and resistance to a wide variety of chemicals, solvents and liquids. The hyperFLEX family is constructed to ensure flexibility, durability, non-intermittency of signal flow, and high temperature operation. The Model 7290A is well suited for applications requiring measurement of whole body motion immediately after being subjected to a shock motion. It provides high performance and reliability in the presence of severe vibrational inputs.

The anisotropically etched silicon microsensors feature gas damping and internal overrange stops to control frequency response and withstand high shock and acceleration loads. Frequency response is 1 to 100 Hz for the Model 7290A-2, and 20 to 10,000 Hz for all other models. The accelerometer operates from 9.5V DC to 18.0V DC and provides a high level, low impedance output. The +2 volt differential output is dc coupled at a dc bias of approximately 3.6V. The Model 7290A features an operating temperature range of -650F to +2500F (-550C to +1210C).

Endevco's Model 136 Three-Channel System, Model 4430A or OASIS 2000 Computer-Controlled System is recommended as signal conditioner and power supply.

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.