Accession Number : ADD004977

Title :   Low Flow Gas or Liquid Calibrator.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Duntz,John L , Jr

Report Date : 15 Apr 1975

Pagination or Media Count : 9

Abstract : An apparatus is described for calibrating liquid or gas flowmeters using a piston driven at a constant velocity to produce a constant flow rate through a precision bored tube. The system flow rate is determined by measuring the time required to transmit a given volume, or the velocity of the motor which drives the piston pump. This system is capable of using gas or liquid medium and has a low flow rate limit of .0012cc/min with an accuracy of .38 percent. (Author)

Descriptors :   *Patents, *Flowmeters, *Calibration, Liquids, Gases

Subject Categories : Hydraulic and Pneumatic Equipment
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE