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Signal Conditioner with Automatic Zero Adjustment Eliminates Sensor’s Inherent DC Offset Voltage

Mon, 04/14/2008 - 11:38am

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signal conditioner for MEMS DC accelerometerPCB Piezotronics introduced Model 478A30, a three-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. It features automatic zero adjustment capability for elimination of a sensors' inherent DC offset voltage, three independent operating channels with individual excitation voltage, selectable excitation voltage levels from 0V to 14V DC; 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.

PCB Piezotronics
888-684-0013, www.pcb.com

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