JA-40GA Accelerometer

Quartz Servo Accelerometers

The JA-40GA is a high performance servo balanced quartz accelerometer which has been developed for measuring very low levels of vibration. The signal processing circuit has been optimized to provide very low output noise while maintaining excellent Scale factor and Bias stability over the whole operating temperature range.



  • Ultra low noise
  • Low frequency operation
  • Operating temperature range from -20 °C to +70 °C


  • Vibration, Inclination meauerment
  • Earthquack, Strong motion measuerment
  • Stractual Health monitoring

Technical data

Operating temperature -20℃ to +70℃
Shock 100G
Input voltage ±15V(DC)
Input current (Quiescent) 10.0 mA max.
Range ±2.0G ±4.0G ±8.0G
Noise (1 to 30Hz) 0.1×10-6 G/√Hz Max.
Scale factor (Nominal@20℃) 5.0V/G 2.0V/G 1.0V/G
Bias (Nominal@20℃) ±10.0mG
Bias temperature coefficient ±100μG/℃ Max.
Frequency response 200Hz Min.
Self-test Current
Diameter Φ25.4mm
Height 33.2mm
Weight 115 grams max.
Exportation Accelerometer must only be exported in accordance with all relevant regulations.
Technical information provided including specifications, drawings and schematics are for reference only.
Information provided is subject to change without prior notice.
Please contact your local sales representative with any questions before ordering.