Accession Number : ADD000945

Title :   Pure Fluidic Strain Gage.

Descriptive Note : Patent,


Personal Author(s) : Drzewiecki,Tadeusz M ; Manion,Francis M

Report Date : 10 Jul 1973

Pagination or Media Count : 5

Abstract : In the patent a pure fluidic strain gage is disclosed which comprises a conduit or duct constructed of deformable material through which a fluid is caused to flow. The conduit is adapted to receive an external stress and be deformed thereby in a predetermined manner such as by a change in length or the like of the conduit. This deformation produces a change in fluid resistance in the channel and thus effects a variation in the flow characteristics of the fluid through the conduit. A monitoring device, such as a fluidic proportional amplifier, is provided to detect such variations in flow characteristics, these variations being indicative of the value of the external stress received by the conduit and the strain of the conduit.

Descriptors :   *Strain gages, *Patents, Fluidic control, Fluid amplifiers, Ducts, Deformation

Subject Categories : Fluidics and Fluerics
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE