Dytran’s new IEPE accelerometers for HUMS and flight test applications

Dytran 3168D2 is a new single-axis IEPE quartz accelerometer featuring a
thru-hole design for 360-degree cable orientation.

Ideal for HUMS and flight test applications, Model 3168D2 incorporates
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 ensure correct ‘in-band’ vibration measurements
during all test applications.

Key features of Model 3168D2 IEPE quartz accelerometers include a sensing
element internally isolated from the outer case to prevent ground loops and enclosed
by a Faraday shield to prevent EMI/RFI interference; 10 mV/g sensitivity and 1Hz
to 10,000Hz (±3dB) frequency range; rugged, stainless steel case hermetically
sealed for reliable operation in high humidity or wet environments; and integral
Teflon cable terminating in twisted pair shielded flying leads and available in
various lengths.

Model 3168D2 IEPE accelerometers find application in high-frequency aircraft/ airframe
vibration monitoring; Health and Usage Monitoring Systems (HUMS); transmission
vibration measurements; and any general-purpose, high energy applications where
signal saturation, shock overload and zero shift are potentially affecting
signal integrity.

Metromatics is the distributor for Dytran Instruments, Inc. in Australia
and New Zealand.

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