| 摘要 |
Disclosed are a method for processing a signal of a non-contact distance displacement sensor and an apparatus thereof. According to an embodiment of the present invention, the method for processing a signal of a non-contact distance displacement sensor including first and second coils arranged at a fixed distance apart and a target metal plate, comprises a step for receiving a first voltage having amplitude proportional to a Q-factor corresponding to the distance between the first coil and the target metal plate; a step for receiving a second voltage having amplitude independent from the distance between the second coil and the target metal plate; and a step for generating an output voltage having a linear correlation with the distance between the first coil and the target metal plate based on modeling of the first voltage predetermined with respect to a relation between the Q-factor and the distance, and the received first and second voltages. In the output voltage generating step, the output voltage is generated by using multiple parameters determined by the modeling of the first voltage, and ratiometry of the first voltage and the second voltage, so the linearity with respect to the distance with the target metal plate can be provided, and the accuracy and reliability with respect to the measured distance can be provided. |
