JPS62165526U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of a liquid level position inspection device according to the present invention, and FIG. 2 is a diagram showing the operation of the device. 10... Container, 13, 14... Capacitive sensor.

Claims (1)

[Claims for Utility Model Registration] One electrode is a ground plane; the other electrode is an electrode set above the liquid level of the container to be inspected, and the height of the liquid level of the container passing between both electrodes is In a liquid level position inspection device equipped with a capacitance sensor that inspects the liquid level based on changes in capacitance between both electrodes due to changes in the The sensitivity of both sensors is set so that they are opposite each other on both sides, and the sensitivity of both sensors is determined when a container of permissible liquid level comes between them, above the level of that container that would be expected in its normal transfer. Both sensors emit a constant signal even when the maximum shaking occurs in the direction across the transfer path, and when a container with a liquid level below the allowable liquid level comes between the two sensors, the container moves in the transverse direction. The above signal is set not to be emitted even when no shaking occurs, and a signal indicating that the liquid level is within the allowable value is generated only when both sensors generate both signals at the same time. Liquid level position inspection device.