Dytran 3310A miniature accelerometer

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Dytran Instruments has announced the release of the 3310A — an innovative, ultraminiature, high-temperature, isolated, charge mode accelerometer.

The product is characterised by its miniature size (8.89 x 8.89 x 6.20 mm), which enables it to be mounted in areas with a small footprint. The high-output, low-capacitance, thermally stable single-crystal material improves temperature stability, allowing for operation in high-temperature (up to 260°C) environments. The model features a low thermal coefficient of sensitivity, which means the sensor sensitivity changes little with changing temperature.

The miniature accelerometer utilises the latest in planar shear technology to generate clean, low-noise signals. It is permanently bonded in an anodised aluminium isolation cup which electrically isolates the case from the mounting surface, preventing ground loop interference. In addition, its low mass and high crystal stiffness allow the sensor to measure high-frequency vibrations with little error.

The model is packaged in a titanium case and weighs only 1.8 g. Available with a sensitivity of 1–1.3 pC/g, it is installed using adhesives or mounting wax. The sensor features a specially designed Dytran 3-56 coaxial connector which mates with a supplied replacement cable, terminating to a 10-32 jack.

Test applications include: environmental stress screening (ESS); mechanical shock testing; shock and vibration testing of small lightweight specimens (such as printed circuit boards); product response testing; and general-purpose high-temperature vibration measurements where space is at a premium.