发明名称 PRESSURE SENSOR DEVICE
摘要 PROBLEM TO BE SOLVED: To provide a pressure sensor device with adjustable sensitivity of a plurality of pressure detection parts even if a common system and a common processing circuit chip are used. SOLUTION: A processing circuit chip comprises a plurality of resistance parts 38b and 38c equipped with a plurality of resistances 381a-386a, and a plurality of switches 381b-386b selectively carrying a current to one of the plurality of resistances 381a-386a by turning on or off the switch. The circuit chip is equipped with an addition reverse amplification circuit part 38 whose amplification factor is set according to the respective combined resistance values of the respective resistance parts 38b and 38c. In the circuit part 38, one of the switches 381b-386b is turned on or off to form circuits by any one of the resistances 381a-386a so that the resistance parts 38b and 38c respectively have desired combined resistance values. Desired amplification factors are set corresponding to the formed circuits. COPYRIGHT: (C)2007,JPO&INPIT
申请公布号 JP2006322836(A) 申请公布日期 2006.11.30
申请号 JP20050146795 申请日期 2005.05.19
申请人 DENSO CORP 发明人 SHINODA TAKESHI
分类号 G01L9/00;G01L9/04 主分类号 G01L9/00
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