Model 7131A from Measurement Specialties is a miniature triaxial IEPE accelerometer specifically designed for NVH, engine vibration, road response, modal analysis, structural testing, ride handling and flight testing.
Available in ±50 G to ±2000 G dynamic ranges, the rugged device features a hermetically sealed titanium construction with a 4-pin Microtech connector interface. It incorporates stable piezoceramic crystals in annular shear mode which provide a flat frequency response up to >10 kHz.
The accelerometer features stable operating performance over an operating range of -55°C through +125°C with linearity of ±1% (FSO). Operating from 18 to 30 V d.c., it provides a ±5 V d.c. output with an 8–12 V d.c. bias voltage. Excitation current is 2-10 mA. The 7131A is case grounded and adhesively mounted for ease of installation.
Each unit is shipped with a NIST traceable amplitude calibration certificate. A 4-pin 1/4-28 to 3x BNC cable assembly (315) is offered as an accessory, as is the Model 161A 4-channel PE & IEPE signal conditioner.
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