Endevco RCC designed for piezoelectric sensors
An
Endevco product story
Edited by the Engineeringtalk editorial team
Oct 23, 2009
Endevco has launched its model 2771C-XX, an ultra-low-noise remote-charge converter (RCC), designed for use with charge-output piezoelectric sensors.
It is suitable for use within mechanical system health monitoring, nuclear power plant/regenerative energy and environmental testing applications.
Model 2771C-XX offers a rugged two-wire (IEPE), single-ended design that operates from constant current power (4-20 mA).
Both RCC signal output and current to the RCC are carried along the same wire.
Housed in a rugged, small package, the charge converter offers broadband noise range down to 5u Vrms, with a frequency response of 0.4 to 50kHz.
Units are designed to withstand shock loads of up to 100g peak and are radiation tested to 1.0 Mrads.
With availability in three fixed gains of 0.1, 1.0 and 10mV/pC, model 2771C-XX can also support TEDS (per IEEE P1451.4) for smart sensor and larger channel-count applications, and also includes an M1 Version with male BNC, to facilitate easy panel mounting.
Because of its low impedance voltage, signal output from model 2771C-XX is less susceptible to noise pickup.
Shunt capacitance of the cable connecting model 2771C-XX to the main signal conditioner does not significantly affect system noise or sensitivity.
Because model 2771C-XX has the same envelope size as Endevco model 2771B remote-charge converter, it may also be used as a drop-in replacement for legacy applications where lower noise is required.
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