Measuring and testing – Liquid level or depth gauge
Patent
1995-08-04
1998-08-04
Oda, Christine K.
Measuring and testing
Liquid level or depth gauge
340612, G01F 2300
Patent
active
057896755
ABSTRACT:
A disposable fluid level sensor of the present invention determines the level of fluid in a container. A flex circuit sensor is coupled to a processing module having a power supply, the flex circuit sensor being mounted at a selectable location by an adhesive patch which holds the sensor flush against the container. The processing module hangs from the flex circuit, and provides a human perceptible indication, such as a flashing light or an audible alarm, when the fluid level drops below a desired point as determined by the sensor. The sensor detects the change in fluid level by transmitting an electromagnetic signal and determining whether there is a change in reflected energy.
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McGraw-Hill Dictionary of Physics and Mathematics, McGraw-Hill, Inc., 1979, p. 626 (no month), 1979.
Blaine David H.
McArthur Paul
McNally David J.
Oda Christine K.
Zevex, Inc.
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