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Home | Piezoelectric Accelerometers | Special Application Piezoelectric Accelerometers

378

  • Vibration Monitoring & Process Controls
  • High Sensitivity (1,000 pC/g)
  • Electrically Isolated
  • 3-Pin Connector

The Models 378 and 378-HT Piezoelectric Accelerometers are designed for prolonged use in adverse industrial environments of shock, vibration, temperature, humidity and excessive oil. The high charge sensitivity of 1,000 pC/g and high mounted resonance of 10K Hz provide a wide dynamic range from 0.00001 to 500 g's. Their rugged construction ensures long life and high performance stability and repeatability.

The unique design of the piezoelectric seismic system ensures that the units have no discernible spurious response to mounting torque, body strains, cable vibration, cable whip, pressure variations and most heat transients. Internal electrical isolation minimizes ground loop problems from noise currents. The Models 378 and 378-HT accelerometers are equipped with a 3-pin top mounted output connector and a -28 removable stud for mounting. The Model 378-HT is designed to operate in environments up to +500 Deg. F.

Consult the factory for customized versions of these sensors.

Notes:
At +75 Deg F, 10g Peak, 100Hz; Lower Frequency Limit is Determined by Associated Electronics
Referenced to Sensitivity @ 100 Hz.
With Connector Protected or Sealed, Unit is Epoxy Sealed

Specifications

Charge Sensitivity 1,050 +/-50 pC/g
Frequency Linearity +/-5% Max 1 Hz To 2,000 Hz
Resonant Frequency 10 KHz, Nom.
Amplitude Linearity +/-1.0% (BFSL)
Capacitance 13,000 +/-1,000 pF
Insulation Resistance 10,000 M Ohm Min, 50 VDC Test
Isolation Resistance 100 M Ohm, Min.
Transverse Sensitivity 5% Max