CAPACITIVE FLUID LEVEL DETECTION SENSOR

摘要

The present invention relates to a fluid level detection sensor, and an objective of the present invention is to provide a capacitive fluid level detection sensor, in which an electrode for sensing a fluid level in a capacitive method is formed on a film in a printing method so that the film can be easily attached to and detached from a connector module having a wireless transmission function, and thus a value of a sensed fluid level can be transmitted to a central control office at a remote site, and the film can be used as a disposable item.

主权项

1. A capacitive fluid level detection sensor comprising:
a sensor film having a pair of electrodes formed on a base film in parallel to each other in a printing method to make a condenser and an adhesive layer on a bottom surface of the base film; and a connection module connected to connection terminals of the sensor film to convert a capacitance value detected by the electrodes into level information and wirelessly transmit the converted level information to a remote site, wherein the connector module is configured to include: a receiving groove formed at one side of a housing to receive the connection terminals of the sensor film; a cover provided on the receiving groove and combined with the housing by means of a hinge to cover the receiving groove; connection pins provided inside the cover to pass through and electrically connect to the connection terminals of the sensor film received in the receiving groove; and pin grooves formed on a bottom unit of the receiving groove at positions corresponding to the connection pins, and a battery; a controller electrically connected to the connection pins to convert the detected capacitance value into the level information; and a wireless transmission unit for wirelessly transmitting the level information calculated by the controller to a remote site are embedded inside the housing.