PCB Piezotronics has introduced Model 478A30, a 3-channel dc sensor signal conditioner with selectable gain. This model is designed to be compatible with new Series 3991/3993 high amplitude 20,000g MEMS dc response shock accelerometers, and providing the end user with a MEMS-based high-g shock measurement system, with frequency range from dc to 150k Hz.
The significant feature of this device is its automatic zero adjustment capability for elimination of a sensor’s inherent dc offset voltage. Model 478A30 features three independent operating channels with individual excitation voltage, selectable excitation voltage levels from 0-14 VDC; differential output and gain adjustment from 0 to 999.9, as well as BNC output connectors, for easy hookup to readout and recording instruments. The unit may also be used with Series 3741 DC response accelerometers.
Common applications for a high amplitude measurement system which includes Series 3991/3993 and the accompanying Model 478A30 dc sensor signal conditioner include fuze/safe and arm testing applications; drop testing; consumer electronic products testing; metal-to metal-impacts; penetrator tests, blast loading of structures; weapons data recorder testing; and crash and impact testing. Model 478A30 is also a stock product, available for expedited delivery.