| 摘要 |
<p>Provided is an inductive proximity sensor capable of always accurately detecting whether an object to be detected approaches by performing compensations for variations in outer environments, such as temperature, including: a bobbin configured to have a first winding unit formed on the side to which an object to be detected approaches and a second winding unit formed with a blocking plate for blocking a magnetic field interposed between the first winding unit and the second winding unit; a pair of first and second sensor coils wound on the first and the second winding units of the bobbin, respectively, and configured to have respective one ends grounded together; and a signal processor connected to a line which couples the other ends of the first and the second sensor coils to a ground portion where the one ends are grounded together and configured to analyze a change of a received first signal based on a received second signal by processing a change of received signals to determine whether the object to be detected approaches or not based on a result of the determination.</p> |
