Product category:
Pressure sensors
News Release from: Vibrasens | Subject: Pressure sensors
Edited by the Engineeringtalk Editorial
Team on 24 August 2004
Improved dynamic calibration for
pressure sensors
VibraSens uses a PC based automated dynamic pressure calibration system to calibrate dynamic pressure transducers including both charge and voltage type piezoelectric sensors.
VibraSens uses a PC based automated dynamic pressure calibration system to calibrate dynamic pressure transducers including both charge and voltage type piezoelectric sensors Test sensor output can be single-ended or differential, AC or DC coupled, isolated or grounded
This article was originally published on Engineeringtalk on 18 Dec 2003 at 8.00am (UK)
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With 2bar dynamic range, the system provides better signal noise ratio at low frequency than the pistonphones typically used to calibrate microphones and other acoustic sensors.
The periodic signal helps the company to use a digital filtering cross correlation technique that greatly improves signal to noise ratio.
Using computer control, the company has also been able to implement comparison calibration with substitution that virtually eliminates uncertainties due to temperature variation and signal conditioner gain over the entire frequency range.
The operational software is based on National Instrument LabView to ensure minimum operator error and enhance repeatability.
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