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JA-35H165/H185 Accelerometers

Quartz Servo Accelerometers

JA-35H Accelerometer

The JA-35 series accelerometers are developed to be the smallest servo balanced quartz pendulum accelerometer in the world, meeting the increasing space limitations in tool designs for downhole applications. The JA-35 series accelerometers enables design engineers to develop sub inch diameter probes including directional modules or inclinometers.

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Features

  • 185 or 165 °C operating temperature
  • Smallest quartz pendulm accelerometer for downhole applications
  • Ultimate reliability

Applications

Designed for extreme downhole applications including :
  • Directional Drilling
  • MWD/LWD
  • At bit inclination

Technical data

Environmental
Operating temperature -40 ℃ to +165/185 ℃
Shock (Survival) 1,500 G
Electrical
Input voltage ±12 to ±18V(DC)
Input current (Quiescent) 5.5 mA max.
Performance
Range ±4.0 G
Resolution 1μG max.
Scale factor (Nominal@25℃) 2.90 mA/G 
Bias (Nominal@25℃) ±15.0 mG Max.
Bias temperature coefficient ±100 μG/℃ Max.
Frequency response 200 Hz Min.
Functional
Self-test Current / Voltage
Mechanical
Diameter Φ14.5 mm
Height 14.0 mm
Weight 15 grams max.
Note
Exportation -
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.
 

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