Miniature pressure transducer

  • 07-Sep-2010 10:40 EDT

Meggitt Sensing Systems’ Endevco Model 8530B miniature, high-sensitivity absolute piezoresistive pressure transducers offer high-output measurement capabilities with high linearity and thermal transient stability in a compact (3.86-mm face diameter) and lightweight (2.3 g) package. The device comes in ranges of 200, 500, and 1000 psia with 300-mV full-scale output and high resonance frequencies of 750 kHz (200 psia) and 1000 kHz (500 and 1000 psia). The series features an active four-arm strain gauge bridge, diffused into a sculpted silicon diaphragm for maximum sensitivity and wideband frequency response. The units are rugged to 20,000 g shock and minimum 4X burst pressure, and they offer nonlinearity, nonrepeatability, and pressure hysteresis errors of less than 0.50% full-scale output (FSO) (200 and 500 psia versions) and 1% FSO (1000 psia version).

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