Dytran Model 3168D2 single-axis IEPE accelerometer
Dytran Instruments has introduced the Model 3168D2 single-axis IEPE quartz accelerometer for health and usage monitoring systems (HUMS) and flight test applications.
Featuring a thru-hole design for 360° cable orientation, the sensor has mechanical and electrical filters that effectively eliminate ultrahigh-frequency energy that can cause signal saturation (common in high-speed gearbox applications). The filters also act as a barrier to ‘zero shift’ phenomena in the data by protecting the sensing element from high-amplitude, high-frequency mechanical impacts.
In addition, the filters suppress the natural frequency of the sensor to assure correct ‘in-band’ vibration measurements during all test applications. The sensing element is internally isolated from the outer case to prevent ground loops and is enclosed by a Faraday shield that prevents EMI/RFI interference.
The sensitivity is 10 mV/g, the frequency range is 1 to 10,000 Hz (±3 dB) and the rugged, stainless steel case is hermetically sealed for operation in high-humidity or wet environments. The integral Teflon cable terminates in twisted pair shielded flying leads and is available in various lengths.
Typical uses include applications such as high-frequency aircraft/airframe vibration monitoring; HUMS and transmission vibration measurements; and any general-purpose, high-energy applications where signal saturation, shock overload and zero shift are potentially affecting signal integrity.
Originally published here.
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