Accession Number : ADD008920

Title :   Fluidic Pulser.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Holmes,Allen B

Report Date : 07 Jul 1981

Pagination or Media Count : 9

Abstract : A fluid telemetry system is disclosed which utilizes an improved pulsing device. The pulser comprises a bistable fluid amplifier. Both outlets of the bistable fluid amplifier communicate tangentially with a vortex chamber. A pulse in the fluid entering the amplifier may be produced each time the fluid flow is diverted from one outlet to the other. (Author)

Descriptors :   *Patents, *Pulse transmitters, *Fluidic amplifiers, *Telemeter systems, Fluid flow, Pulse frequency modulation, Well logging, Data transmission systems, Pressure transducers, Instrumentation, Drilling, Nozzles, Mud, Boreholes, Pressure, Receivers, Pulses, Vortices, Chambers

Subject Categories : Electrical and Electronic Equipment
      Fluidics and Fluerics
      Telemetry

Distribution Statement : APPROVED FOR PUBLIC RELEASE