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Miniature Accelerometer for Vibration Screening of Circuit Boards and Mobile Phones

Mon, 10/08/2007 - 5:11am

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PCB_Model_357A19_WEBc.jpgPCB Piezotronics introduced the Model 357A19, a miniature charge output accelerometer, designed for performing shock and vibration studies in space-restricted locations and on small, lightweight structures. The unit occupies a 0.11" × 0.16" × 0.27" envelope, and weighs 0.007 ounces (0.20 grams), for minimal mass loading of a test article. The unit connects to laboratory-style charge amplifiers or in-line charge converters, which condition an output signal for recording or analysis. It features an operating temperature range of -73°C to +177°C and is suited for thermal cycling and vibration stress screening of circuit boards, disk drive mechanisms, mobile phones, PDA’s, and other electronic devices. Other applications include NVH studies on automotive parts and modal analysis of small structures and satellite components. The sensor is structured with a shear mode, piezoceramic sensing element and produces a 0.35 pC/g output signal, with frequency response of up to 20 kHz and resonant frequency of greater than 70 kHz. Additional features include a 10,000 g shock limit, robust titanium housing, 3-56 coaxial electrical connector, and a standard 10 ft. (3 m) low-noise cable. 
PCB Piezotronics
800-959-4464, www.pcb.com

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