Portable Accelerometer

The portable accelerometer is a piezoresistive devices, offering superior low frequency response characteristics and extremely low power consumption. Each EDR-3C is supplied with a specially designed and calibrated with a built-in triaxial portable accelerometer. The EDR-3C recorder provides automatic digital offset correction between recording events. This feature compensates for DC offset resulting from temperature variation, as well as changes in orientation. Acceleration recording can be configured for the internal triaxial channels or up to 3 optional external inputs. The optional external portable accelerometer input channels are designed for use with "low bias" versions of ICP piezoelectric voltage mode devices. External channels provide signal conditioning, filtering, and constant current excitation for use with voltage mode portable accelerometer.