Posted to News on 12th Oct 2007, 16:37
Miniature accelerometer weighs just 0.20g
PCB Piezotronics is introducing the model 357A19 miniature charge output accelerometer, which is designed for performing shock and vibration studies in space-restricted locations and on small, lightweight structures. The unit occupies a 2.8 x 4.1 x 6.9mm (0.11 x 0.16 x 0.27inch) envelope and weighs a mere 0.20g (0.007 ounces) for minimal mass loading of a test article. The unit connects to laboratory-style charge amplifiers or in-line charge converters, which condition the output signal for recording or analysis.
The model 357A19 has an operating temperature range of -73 to +177degC (-100 to +350degF) and is suitable for thermal cycling and vibration stress screening of circuit boards, disk drive mechanisms, mobile phones, PDAs, and other electronic devices. Further applications include NVH studies on automotive parts and modal analysis of small structures and satellite components.
A shear mode, piezoceramic sensing element produces a 0.35pC/g output signal, with frequency response of up to 20kHz and a resonant frequency greater than 70kHz. Additional features include a 10,000 'g' shock limit, robust titanium housing, 3-56 coaxial electrical connector, and a standard 3m (10 ft) low-noise cable.
