Measuring speed of fluids

GPHYSICS G01Measuring instruments G01PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT

G01P5/00Measuring speed of fluids

G01P5/001Full-field flow measurement G01P5/003by measuring fluid level in front of an obstacle G01P5/005by using a jet directed into the fluid G01P5/006the jet used is composed of ionised or radioactive particles G01P5/008by using an electrolyte added to the fluid G01P5/01by using swirlflowmeter G01P5/02by measuring forces exerted by the fluid on solid bodies G01P5/04using deflection of baffle-plates G01P5/06using rotation of vanes G01P5/065with mechanical coupling to the indicating device G01P5/07with electrical coupling to the indicating device G01P5/08by measuring variation of an electric variable directly affected by the flow G01P5/083by using electronic circuits for measuring the dynamoelectric effect G01P5/086by using special arrangements and constructions for measuring the dynamo-electric effect G01P5/10by measuring thermal variables G01P5/12using variation of resistance of a heated conductor G01P5/14by measuring differences of pressure in the fluid G01P5/16using Pitot tubes G01P5/165Arrangements or constructions of Pitot tubes G01P5/17Coupling arrangements to the indicating device G01P5/175with the determination of Mach number G01P5/18by measuring the time taken to traverse a fixed distance G01P5/20using particles entrained by a fluid stream G01P5/22using auto-correlation or cross-correlation detection means G01P5/24by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave G01P5/241by using reflection of acoustical waves G01P5/242involving continuous G01P5/244involving pulsed waves G01P5/245by measuring transit time of acoustical waves G01P5/247Sing-around-systems G01P5/248by measuring phase differences G01P5/26by measuring the direct influence of the streaming fluid on the properties of a detecting optical wave