Method and device for detecting liquid level

Details Method and device for detecting liquid level Method and device for detecting liquid level

G - Physics

01

F

73/58

G01F 23/28 (2006.01) B67C 3/20 (2006.01) G01F 23/292 (2006.01)

Patent

CA 1277508

ABSTRACT OF THE DISCLOSURE A method for detecting a liquid level liquid level is monitored at mutually opposing sides of a liquid containing bottle. For monitoring the liquid level at each side of the bottle, a diffused light beam is irradiated toward the liquid surface from the level below the liquid surface. The light reflected at the liquid surface and the light refracted at the liquid surface are deteted by a photo-receiving camera which is focused at a standard liquid level. An average value of the monitored liquid levels at both sides is taken as a liquid level indicative value. By employing the aforemention method, acurate detection of the liquid level becomes possible even when the liquid level is unstable.

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