Accelerometer for Health Monitoring Systems

The model 3091A IEPE accelerometer is designed for use in health and usage monitoring systems (HUMS), as well as active vibration control (AVC) of commercial and military aircraft. The Dytran model 3091A is offered with a range of 500g, 100mV/g sensitivity and an upper frequency response of 1,000Hz (+/-5 per cent).

As an IEPE sensor, the model 3091A features built-in electronics, eliminating the need for an external charge amplifier and converter. Design of the model 3091A features a quartz sensing element operating in shear mode and packaged in a rugged stainless-steel housing with a radial three-pin 'Mighty Mouse' connector.

A distinguishing feature of the model 3091A is that the sensor element is incorporated directly into the mounting bracket, facilitating improved sensor performance while eliminating costs associated with separate mounting brackets. This design also offers reduced mass, as compared with conventional sensors and mounting brackets.

The Dytran model 3091A is hermetically sealed for use in dirty and high-humidity environments and case isolated, to avoid EMI/ground loop interference. With its durability, compact size and mounting characteristics, the Dytran model 3091A is suitable for high-frequency aircraft/airframe vibration measurements, rotor track and balance (RTB) and transmission-vibration measurements.

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