| 摘要 |
There is provided a level sensing apparatus detecting the level of a detected material, the apparatus including: a circuit board; a first electrode and a second electrode having different dimensions, which are formed on one surface and the other surface of the circuit board; a first dielectric layer and a second dielectric layer having different thicknesses, which are formed on the first electrode and the second electrode; and a judgment unit electrically connected with the first electrode and the second electrode through the circuit board to judge the level of the detected material by using capacitances detected from the first electrode and the second electrode. According to the present invention, it is possible to accurately sense a level without being influenced by surrounding circumstances such as temperature, and the like.
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