A Simple Hydraulic Sinusoidal Pressure Calibrator.
NATIONAL BUREAU OF STANDARDS WASHINGTON DC ELECTRONIC TECHNOLOGY DIV
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The paper describes a simple, accurate device for the sinusoidal calibration of pressure transducers. Calibration is achieved by vibrating a liquid tube on an electrodynamic shaker vibration generator the pressure transducer mounted at the base of the tube senses the sinusoidally varying pressure in the tube. The frequency range is 15 Hz to 2000 Hz with a maximum obtainable amplitude of 19.5 psi 134 kNm2 peak to peak. The transducer can easily be calibrated statically in the same device, thus permitting precise correlation between static and dynamic calibrations. Agreement between static and dynamic calibrations to within o.1 has been achieved. Author
- Test Facilities, Equipment and Methods