SENSOR SIGNAL PROCESSOR, SENSOR SIGNAL PROCESSING METHOD, MEASURING APPARATUS, SENSOR SIGNAL PROCESSING PROGRAM, AND RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To provide a sensor signal processor which can perform zero point adjustment at high accuracy by a simple operation.;SOLUTION: The sensor signal processor 3, which processes a sensor signal from a sensor part 2 for detecting the distance to an object to be measured and which outputs a measuring signal indicating the distance from the sensor part 2 to the object to be measured, is provided with: a signal conversion part 4 for converting the sensor signal into a gap detection signal S9 based on the distance from the sensor part 2 to the object to be measured; a zero digital signal output means 72 for outputting a zero signal corresponding to the zero value of the measuring signal; a subtractor 73 for generating a zero set signal S14 in which the gap detection signal S9 is subtracted from the zero signal; a register 74 for storing and outputting the zero set signal S14 and updating it at instructed timing; a zero set instruction part 76 for giving the register 74 instructions for the update timing of the zero set signal S14; and an adder 6 for adding the zero set signal S14 and the gap detection signal S9, to output it as the measuring signal.;COPYRIGHT: (C)2005,JPO&NCIPI