Dytran Model 3316C2 single-axis charge mode accelerometer

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The Dytran Model 3316C2 is an electrically isolated, ultrahigh-temperature, piezoelectric charge mode accelerometer designed to operate in temperatures up to 530°C. A single-crystal, planar shear charge mode sensing element mounted in a miniature hermetically sealed Inconel housing enables the product to operate at high temperatures over long periods of time.

Employing Silver Window technology on the top cover of the accelerometer housing allows a diffused oxygen molecule to pass through at high temperatures, replenishing oxygen to the crystal while maintaining the hermetic seal integrity. This feature ensures continued high-temperature operation with no loss of insulation resistance due to oxygen deprivation.

The product weighs 13 g and has a height of 12.5 mm, making it suitable for use in tight locations that are inaccessible to larger accelerometers. The calibrated sensitivity is between 1 and 2 pC/g and the upper frequency response is 5 kHz (±10%). The product has a 10-32 tapped hole and a 10-32 radial connector.

The accelerometer is characterised by its small size and by an internal electrical isolation design that eliminates the need for an additional isolated mounting block. It is suitable for high-temperature applications including turbine engine test cells, exhaust manifold testing, nuclear reactor cooling tubes, automotive vibration studies, exhaust system analysis, exhaust vibration analysis and environmental stress screening.