Title:
センサ出力補正装置
Document Type and Number:
Japanese Patent JP4932002
Kind Code:
B2
Abstract:
A sensor output correcting device includes: a sensor element for detecting a variation in an object to be measured, and for outputting this variation as a signal; an A/D converter for converting the analog signal outputted from the sensor element into a digital signal; a zero reference value calculating unit for calculating a zero reference value which is a drift amount of the sensor element from the signal outputted from the sensor element; a zero point correcting unit for correcting a zero point of the signal outputted from the A/D converter on the basis of the zero reference value calculated by the zero criterion calculating unit; an output limiting unit for limiting a value of an output signal inputted from the zero point correcting unit on the basis of a correction amount provided by the zero point correcting unit, and a high frequency removing unit for removing a high frequency component.
Inventors:
Toshiyuki Yamashita
Application Number:
JP2009531091A
Publication Date:
May 16, 2012
Filing Date:
June 16, 2008
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
G01P21/00; B60R21/01; G01P15/00
Domestic Patent References:
| JPH06160100A | 1994-06-07 | |||
| JP2005041258A | 2005-02-17 | |||
| JP2001141758A | 2001-05-25 | |||
| JPH09318403A | 1997-12-12 | |||
| JP3030866B | ||||
| JP2005172836A | 2005-06-30 |
Attorney, Agent or Firm:
Hideaki Tazawa
Hamada Hatsune
Hamada Hatsune