Mechanically and Electrically Filtered, Single–Axis, IEPE Accelerometer

Dytran Instruments, Inc., a leading manufacturer of piezoelectric and DC MEMS sensors presents Model 3168D2 for HUMS and flight test applications.

This innovative sensor is a single-axis IEPE quartz accelerometer with a thru-hole design for 360-degree cable orientation. Model 3168D2 features mechanical and electrical filters that effectively eliminate ultra-high 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 1Hz to 10,000Hz (±3dB). The rugged, stainless-steel case is hermetically sealed for reliable operation in high humidity or wet environments. The integral Teflon® cable for Model 3168D2 terminates in twisted pair shielded flying leads and is available in various lengths.

Typical uses for Model 3168D2 include the following applications: high-frequency aircraft/airframe vibration monitoring, Health and Usage Monitoring Systems (HUMS) and transmission vibration measurements as well as any general-purpose, high energy applications where signal saturation, shock overload and zero shift are potentially affecting signal integrity.

About Dytran Instruments, Inc.:

Established in 1980, Dytran Instruments, Inc. (www.dytran.com) is a leading manufacturer of piezoelectric and DC MEMS accelerometers, force and pressure transducers, and associated electronics. Dytran products are used extensively in aerospace, automotive, test and measurement and industrial applications. Dytran products are widely utilized for on-board measurements in a variety of aerospace, commercial and military applications. Dytran maintains a world-class facility in Chatsworth (Los Angeles) California, USA for the design, development and manufacture of accelerometers, cables and accessories. This vertically integrated facility includes engineering, administrative, manufacturing, and automated machining capabilities. In addition, Dytran products are available worldwide via a network of distributors and representatives.