Home | Piezoelectric Accelerometers | Integrated Piezoelectric Accelerometers
- Seismic Sensors
- Low Impedance Output
- Choice of Sensitivities
- Electrical Isolation
- Hermetically Sealed
- Battery Power (+12 VDC)
Columbia Models 947M4, 947M5 and 947M6 Piezoelectric Accelerometers provide an electrical outputs of 0.5 volt per g, 1 volt per g and 2 volts per g respectively over a frequency band of 0.1 Hz to 1500 Hz. It is designed for measurement of the low level, low frequency signals encountered in seismic studies.
The sensors incorporate a 4-pin hermetic connector to permit long-term operation in the most demanding environments. Internal electrical isolation minimizes ground loop problems from noise currents. The Series 947 is designed to operate from DC power sources ranging from 10 to 30 VDC. The low power requirement allows operation from battery sources for portable or remote applications.
Consult the factory for customized versions of this sensor.
At +75 Deg F, 10g Peak, 100Hz; 12 VDC Power Source
Referenced to Sensitivity @ 100 Hz.
With Connector Protected or Sealed, Unit is Hermetically Sealed.
|Frequency Linearity||+/-1 dB Max 0.01 Hz To 1500 Hz|
|Amplitude Linearity||+/-1.0% (BFSL)|
|Avg Temp Coeff of Sensitivity||0.05 % / Deg F|
|Transverse Sensitivity||6% Max|
|Voltage Sensitivity||2,000 mv/g +/-10%|
|Range||+/-1.75 g Max.|
|Electrical Noise||0.0003 g Equiv., Nom.|
|Phase Shift (Input-Output)||6 Deg Max @ 2.5 Hz|