Sensor for flooding sensing using piezoelectric-element and method for flooding sensing

摘要

The present invention relates to a submerged sensor and the immersion detection method using a piezoelectric element, in more detail a top surface and a plurality of the upper case of the penetration hole formed in a hexahedral shape in the outer peripheral surface, a bottom surface is formed on the upper case to the piezoelectric element detects submersion, provided inside the case and to absorb moisture expandable expansion member, the expansion member lower while supporting load acts to transfer the load to the piezoelectric element rest, are connected to the piezoelectric element is a piezoelectric element for transmitting the output signal whether the signal detected flooded cable, and the elastic load acting spring and the piezoelectric element is formed between the piezoelectric element and the load acting pedestal relates to the immersion of the immersion sensor and sensing method using a piezoelectric element composed of a load transmitted from the load operating the stand base toward the load acting between the columnar piezoelectric elements in the form of a cylinder passing. Accordingly, by detecting the pressure applied to the piezoelectric element according to a voltage signal whether or not the flooding occurring in the piezoelectric element is effective to detect in real time.