Meggitt Sensing Systems (Irvine, CA) introduced the Endevco model 7264H optimally gas-damped accelerometer for automotive safety testing. The sensor is small in size and mass, and eliminates irrelevant frequency content generated by breaking glass and metal-to-metal impact. The MEMS accelerometer performs consistently over temperatures ranging from –18 to +66 °C (0 to 150 °F), and has a .50:.85 damping ratio and a 10,000g shock capacity. The frequency response is flat from DC to 3,500 Hz. It has a two-active-arm, full-bridge circuit with fixed completion resistors to facilitate shunt calibration. The full-scale output is 200 mV nominal with 10 Vdc excitation. The accelerometer comes standard with 2-, 5-, and 10-volt calibration data.
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