Stephen E Weis

US Patent:

7266986, Sep 11, 2007

Filed:

Nov 18, 2004

Appl. No.:

10/991219

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

US Classification:

73 157

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.