G - Physics
01
F
73/115, 73/38
G01F 1/52 (2006.01) G01F 1/00 (2006.01) G01F 23/16 (2006.01) G01F 23/44 (2006.01)
Patent
CA 1080994
ABSTRACT OF THE DISCLOSURE An apparatus is disclosed for measuring the rate of flow of a fluid or the volume of the fluid flowing past a point. The apparatus includes a first transducer device for measuring a fluid level upstream of a weir and a second transducer de- vice for sensing and decoding an optically encoded Gray- scale disc rotated by the first transducer device to an angu- lar position corresponding to the level of the fluid. The The disc is provided with indicia thereon proportional to flow rates and corresponding to different fluid levels. The de- coded signals obtained from the disc represent the rate of flow of the fluid. These signals are then integrated to indicate the volume of the fluid flowing past a point for actuating a fluid sampler or a recording device.
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