Submersible accelerometer for vibration measurements

Dytran Instruments introduces a new general purpose accelerometer with a factory molded urethane boot and urethane cable for underwater vibration measurements. It features shear design ceramic seismic elements for high natural frequency and ruggedness. The company says that adding an on-board miniature IC amplifier converts the very high impedance voltage signals from the crystal to a much lower impedance level, which allows this instrument to drive long cables with negligible signal loss. The model 3217A has a sensitivity of 100 mV/g, features a hermetic seal and adhesive mount, and weighs 5 grams. It is electrically isolated from the mounting surface to avoid group loops which can cause spurious signals to interfere with the measurements. www.dytran.com Dytran Instruments

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