Inventors:
Fred D. Shirley - Clinton MS, US
Vincent P. Chiarito - Vicksburg MS, US
Stanley C. Woodson - Vicksburg MS, US
Patrick Walter - Fort Worth TX, US
Stephen Weis - Fort Worth TX, US
Assignee:
The United States of America as represented by the Secretary of the Army - Washington DC
International Classification:
G01L 27/00
Abstract:
A dynamic pressure testing or calibration system packaged as a portable unit for characterizing pressure sensors, such as transducers. Embodiments are packaged for carry on the body, are battery-operated, compatible with existing transducer mounts, and quickly learned and easily used by a single operator. The system supplies a pre-specified impulse (pressure pulse) of fluid, preferably a benign gas, such as air, or an inert gas such as helium or nitrogen. In select embodiments, the gas pulse has a fast rise time and its amplitude may be varied over a pre-specified dynamic range. For example, the rise time may emulate that of an impulse created during an explosion by a resultant pressure wave, i. e. , less than 100 microseconds. Embodiments also incorporate a data acquisition capability that accurately captures and records both the supplied impulse and the response of the sensor under test.