Flow meter

Details Flow meter Flow meter

G - Physics

01

F

G01F 1/66 (2006.01) G01F 1/708 (2006.01) G01N 21/17 (2006.01)

Patent

CA 2339699

A photoacoustic effect is used in order to measure a flow rate of a flowing medium (M), in-particular of natural gas. A light emitter (1) is used to produce in the medium (M) a sound wave (S) which is transmitted by the medium (M) and detected by a sound detector (2). The light emitter (1) is less exposed to the medium (M) than a diaphragm such as used in the ultrasonic method.

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