ISTI - Instrumental Software Technologies, Inc. products

The GEOfba200 (Fig. 1 - 3) is a very low-noise triaxial force-balance accelerometer with a large dynamic range, suitable for seismology, hazard mitigation and civil engineering applications. The instrument has both a flat response to ground acceleration from DC to 215 Hz and a stable phase response within the passband. Output range is 40Vpp differentially and supports variety range of gain sets from +/-4g to +/-0.25g in the standard configuration and availability for higher gain set under request.

The SM550 and SM1500 (Fig. 4 - 6) are two MEMS type, three-component acceleration sensors. Both have wide frequency response. The SM1500 model provides response from DC to 750 Hz, while the SM550 model provides response from DC to 50 Hz. Many output ranges are available for both models: +/-2 g, +/-4 g, +/-5 g, +/-6 g, +/-10 g, +/-12 g. Default sensitivity is 2.4 V/g for the SM1500, and 1.2 V/g for the SM550.