JPS57201865A - Measuring method for resistance value - Google Patents

Measuring method for resistance value

Info

Publication number
JPS57201865A
JPS57201865A JP8774081A JP8774081A JPS57201865A JP S57201865 A JPS57201865 A JP S57201865A JP 8774081 A JP8774081 A JP 8774081A JP 8774081 A JP8774081 A JP 8774081A JP S57201865 A JPS57201865 A JP S57201865A
Authority
JP
Japan
Prior art keywords
capacitor
circuit
charged
resistance value
resistors
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
JP8774081A
Other languages
Japanese (ja)
Inventor
Takahide Hagiwara
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.)
Yamaha Motor Co Ltd
Original Assignee
Yamaha Motor Co 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 Yamaha Motor Co Ltd filed Critical Yamaha Motor Co Ltd
Priority to JP8774081A priority Critical patent/JPS57201865A/en
Publication of JPS57201865A publication Critical patent/JPS57201865A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

PURPOSE:To measure resistance value of a plurality of resistors with high accuracy continuously, by connecting a capacitor and an NOT circuit in series alternately and connecting a power supply to an input terminal of each NOT circuit via a measured resistance. CONSTITUTION:When a microcomputer 16 outputs a rectangular wave, this rectangular wave is inverted at an NOT circuit 22 and inputted to a capacitor 10A, then the input terminal (c) of the NOT circuit 12A has a voltage drop once and the capacitor is being charged with charged supplies from a resistor 14A. Thus, a voltage which is at high level for a time of charging until the capacitor 10A is charged up to the threshold value, appears at an output terminal (d). This voltage change is inputted to the microcomputer 16 and a resistance value of the resistor 14A is calculated. On the other hand, the output of the output terminal (d) becomes a start signal of a next capacitor 10B, and resistance values for resistors 14b,... are obtained similarly, and the result of calculations is printed out on a printer 20 via an interface 18.
JP8774081A 1981-06-08 1981-06-08 Measuring method for resistance value Pending JPS57201865A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8774081A JPS57201865A (en) 1981-06-08 1981-06-08 Measuring method for resistance value

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8774081A JPS57201865A (en) 1981-06-08 1981-06-08 Measuring method for resistance value

Publications (1)

Publication Number Publication Date
JPS57201865A true JPS57201865A (en) 1982-12-10

Family

ID=13923318

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8774081A Pending JPS57201865A (en) 1981-06-08 1981-06-08 Measuring method for resistance value

Country Status (1)

Country Link
JP (1) JPS57201865A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62192669A (en) * 1986-02-20 1987-08-24 Mitsubishi Electric Corp Resistance value reader
JP2008200369A (en) * 2007-02-21 2008-09-04 Toyo Networks & System Integration Co Ltd Mechanism for blocking simultaneous pull-out of plurality of devices, and casing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62192669A (en) * 1986-02-20 1987-08-24 Mitsubishi Electric Corp Resistance value reader
JP2008200369A (en) * 2007-02-21 2008-09-04 Toyo Networks & System Integration Co Ltd Mechanism for blocking simultaneous pull-out of plurality of devices, and casing

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