JPS56160611A - Analog quantity indicator - Google Patents

Analog quantity indicator

Info

Publication number
JPS56160611A
JPS56160611A JP6482180A JP6482180A JPS56160611A JP S56160611 A JPS56160611 A JP S56160611A JP 6482180 A JP6482180 A JP 6482180A JP 6482180 A JP6482180 A JP 6482180A JP S56160611 A JPS56160611 A JP S56160611A
Authority
JP
Japan
Prior art keywords
voltage
input
switch
indicated
contact
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
JP6482180A
Other languages
Japanese (ja)
Inventor
Yuji Kato
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP6482180A priority Critical patent/JPS56160611A/en
Publication of JPS56160611A publication Critical patent/JPS56160611A/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
    • G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
    • G01D3/06—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for operation by a null method
    • G01D3/063—Comparing the measuring value with a reference value which periodically or incidentally scans the measuring range

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)

Abstract

PURPOSE:To enable both absolute and relative values to be read, by adding a standard value comparing circuit and a reference value comparing circuit to a conventional indicator, and changing over the output signals and the input signals of these comparing circuits to each other to display on the analog quantity indicator. CONSTITUTION:When the contact 1-1 side of a switch 2 is connected to a sensitivity regulator 11, the voltage applied to an input terminal 1 is indicated on an analog indicator 12. On the other hand, when the contact 1-2 side of the switch 2 is connected to the sensitivity regulator 11, and the contact 2-1 side of a switch 3 is connected to an input 13 of a differential amplifier 8, the voltage obtained by subtracting the voltage set by a standard value circuit 5 from the voltage applied to the input terminal 1 is indicated 12. Then, to indicate the difference between the input voltage and a reference voltage which is the input voltage, changing every moment, at an arbitrary time, a switch 4 is connected, and the input voltage at an arbitrary time is held 6. Then, the difference between the held value is obtained 8 and 9 and indicated 12.
JP6482180A 1980-05-16 1980-05-16 Analog quantity indicator Pending JPS56160611A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6482180A JPS56160611A (en) 1980-05-16 1980-05-16 Analog quantity indicator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6482180A JPS56160611A (en) 1980-05-16 1980-05-16 Analog quantity indicator

Publications (1)

Publication Number Publication Date
JPS56160611A true JPS56160611A (en) 1981-12-10

Family

ID=13269292

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6482180A Pending JPS56160611A (en) 1980-05-16 1980-05-16 Analog quantity indicator

Country Status (1)

Country Link
JP (1) JPS56160611A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58129315A (en) * 1982-01-29 1983-08-02 Mitsubishi Heavy Ind Ltd Abnormality detecting device in plant
JPS60192207A (en) * 1984-03-13 1985-09-30 Nittan Co Ltd Detecting device for preventing disaster

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58129315A (en) * 1982-01-29 1983-08-02 Mitsubishi Heavy Ind Ltd Abnormality detecting device in plant
JPS60192207A (en) * 1984-03-13 1985-09-30 Nittan Co Ltd Detecting device for preventing disaster
JPH0473084B2 (en) * 1984-03-13 1992-11-19 Nittan Co Ltd

Similar Documents

Publication Publication Date Title
JPS5785110A (en) Dc stabilized power supply circuit
JPS5551361A (en) Range switching device for electric measuring instrument
JPS5326175A (en) Electronic watch
JPS5672510A (en) Muting circuit
JPS56160611A (en) Analog quantity indicator
ES8702981A1 (en) Output correction circuit for transducer means
JPS5676616A (en) Current operational amplifier
JPS5341969A (en) Analogue signal selecting circuit
JPS5327353A (en) Bipolar digital-analog converter
GB939686A (en) Improvements in or relating to gas chromatograph apparatus
JPS5750115A (en) Gain control circuit
JPS57182280A (en) Analog adding circuit
JPS5633563A (en) Measuring device for amplifier
JPS5361250A (en) Analog delay circuit
JPS5260546A (en) Signal converter circuit
JPS56158567A (en) Transmission system of measuring signal
JPS5523475A (en) Measuring instrument for indentation hardness
JPS56132571A (en) Fine current measuring circuit
JPS56664A (en) Battery display unit
JPS5234770A (en) Detection circuit of multiple input maximum value
JPS579106A (en) Failure detecting circuit for operational amplifier
JPS52112320A (en) Digital display means
JPS6448509A (en) Time constant circuit
JPS54137944A (en) Signal processing circuit
JPS5325338A (en) Aural amplifier