• Seismic Event Sensor
  • Ultra Low Noise
  • High Level Output
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Columbia Models SA-107LN and SA-107LNC Servo Accelerometers are highsensitivity, low noise sensors designed for use in seismic and low level, low frequency motion studies. The accelerometers are self-contained and provide a high level, low impedance output. No signal conditioning is required in most applications.

These sensors utilize low noise electronics in conjunction with the force balance principle to make possible measurements in the low frequency micro-G range. Aside from the traditional DC-coupled zero output, the SA-107LN(C) also provides AC-coupled zero output which eliminates tilt-induced or offset errors facilitating high amplification of the basic output. Consult the factory for customized versions of this sensor.

Exports of accelerometers from the United States are subject to the licensing requirements of the Export Administration Regulations (EAR) and/or the International Traffic in Arms Regulations (ITAR).


Output Impedance <1000 Ohms
Ranges Available +0.1 G To +2 G
Output Voltage +7.5 Volts into 100K Load
Excitation +12 To +15 VDC <10 mA
Sensitive Axis Alignment Better Than 0.25 Deg
Scale Factor Tolerance +1%
Scale Factor Temp Coefficient 0.01% / Deg C Max.
Zero Bias / A.C. Coupled / D.C. Coupled <5 mV<1 mG
Null Temp Sensitivity 75 V./ Deg C
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