Patent ID: 8306767
Filing Date: 2012-11-06
Classification: B60R,G01D,G01P

Abstract:
1. A sensor output correcting device comprising: a sensor element for detecting a variation in an object to be measured, and for outputting this variation as an analog signal; an A/D converter for converting the analog signal outputted from said sensor element into a digital signal; a zero point correcting unit for correcting a zero point of the signal outputted from said A/D converter based on a correction amount; and an output limiting unit for limiting a value of an output signal inputted thereto from said zero point correcting unit on a basis of the correction amount, wherein said output limiting unit comprising: a first clip processing unit for, when the signal outputted from said zero point correcting unit has a value equal to or larger than a value which said first clip processing unit has acquired by subtracting a minimum value of an output range of said A/D converter from said correction amount, outputting the value which is the subtraction of said minimum value from said correction amount; and a second clip processing unit for, when a value outputted from said first clip processing unit is equal to or smaller than a value which said second clip processing unit has acquired by subtracting a maximum value of the output range of said A/D converter from said correction amount, outputting the value which is the subtraction of said maximum value from said correction amount.