Force Balanced Accelerometer
PA-23, PA-23BH, S-230 - Geotech Instruments, llc (Geotech)
The Geotech Model S-230 is a high resolution, 1-component, force balanced accelerometer capable of meeting the noise and stability requirements of the most demanding seismic studies. It features a very wide frequency response (DC to 90 Hz) and an internal calibration coil.