Fluid pressure measurement by mechanical compresssion of tubing

Details Fluid pressure measurement by mechanical compresssion of tubing Fluid pressure measurement by mechanical compresssion of tubing

G - Physics

01

L

G01L 7/04 (2006.01)

Patent

CA 2369880

The invention provides a simple, non-invasive means for measuring pressure of fluid in fluid-containing, resilient tubing by measuring the force to mechanically compress the tubing to a predetermined distance. In the apparatus of the invention, first and second opposed members are moved together to a predetermined distance to compress the fluid- containing, resilient tubing therebetween. Measuring means connected to at least one of the members is used to measure the force exerted by the fluid-containing, resilient tubing against the members when the members are at the predetermined distance from one another, wherein the measuring means has been pre-calibrated at the predetermined distance, to correspond to fluid pressure within the fluid-containing, resilient tubing. An important application of the invention is the provision of a convenient, non-intrusive, low-cost device for field measurement of pressure in drip irrigation systems, without installing special fittings or puncturing the tubing.

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