JPS574509A - Bridge circuit - Google Patents

Bridge circuit

Info

Publication number
JPS574509A
JPS574509A JP7780080A JP7780080A JPS574509A JP S574509 A JPS574509 A JP S574509A JP 7780080 A JP7780080 A JP 7780080A JP 7780080 A JP7780080 A JP 7780080A JP S574509 A JPS574509 A JP S574509A
Authority
JP
Japan
Prior art keywords
bridge
bridge circuit
sensitivity
elements
time
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7780080A
Other languages
Japanese (ja)
Inventor
Kaoru Uchiyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7780080A priority Critical patent/JPS574509A/en
Publication of JPS574509A publication Critical patent/JPS574509A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/16—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying resistance

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

PURPOSE:To reduce a change with the passage of time in a pressure converting capacity, by a method wherein the sensitivity of a resistance incorporated into a bridge circuit is reduced. CONSTITUTION:In order to convert a physical amount into an electric signal, a bridge circuit consists of piezo-elements G1-G4, and fixed resistances R5 and R6 are separately inserted into two sides of a bridge so that the middle point of the bridge for obtaining the output signal reaches a given specific value. The values of the R5 and R6 are set below a value which is obtained by dividing the product of a sensitivity of the elements G1-G4 and an allowable detecting error factor by the maximum passage with time of the R5 and R6. As a result, the bridge having a better stability can be obtained and a high-precise pressure transducer can be obtained.
JP7780080A 1980-06-11 1980-06-11 Bridge circuit Pending JPS574509A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7780080A JPS574509A (en) 1980-06-11 1980-06-11 Bridge circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7780080A JPS574509A (en) 1980-06-11 1980-06-11 Bridge circuit

Publications (1)

Publication Number Publication Date
JPS574509A true JPS574509A (en) 1982-01-11

Family

ID=13644071

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7780080A Pending JPS574509A (en) 1980-06-11 1980-06-11 Bridge circuit

Country Status (1)

Country Link
JP (1) JPS574509A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61255905A (en) * 1985-05-08 1986-11-13 Kanegafuchi Chem Ind Co Ltd Improved polyolefin resin particle and its production

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61255905A (en) * 1985-05-08 1986-11-13 Kanegafuchi Chem Ind Co Ltd Improved polyolefin resin particle and its production

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