JPS56115960A - Electric resistance measuring apparatus - Google Patents

Electric resistance measuring apparatus

Info

Publication number
JPS56115960A
JPS56115960A JP1854880A JP1854880A JPS56115960A JP S56115960 A JPS56115960 A JP S56115960A JP 1854880 A JP1854880 A JP 1854880A JP 1854880 A JP1854880 A JP 1854880A JP S56115960 A JPS56115960 A JP S56115960A
Authority
JP
Japan
Prior art keywords
sample
circuit
current
converter
difference
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
JP1854880A
Other languages
Japanese (ja)
Inventor
Ryozo 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.)
SHINKU RIKO KK
Original Assignee
SHINKU RIKO KK
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 SHINKU RIKO KK filed Critical SHINKU RIKO KK
Priority to JP1854880A priority Critical patent/JPS56115960A/en
Publication of JPS56115960A publication Critical patent/JPS56115960A/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
    • G01R27/14—Measuring resistance by measuring current or voltage obtained from a reference source

Landscapes

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

Abstract

PURPOSE:To make it possible to remove the noise of the inductive voltage or the thermoelectromotive force for counting out the correct resistance value by making to flow the chopped constant-current to a sample for taking the difference in the potential difference of both ends of the sample at the time of conduction and nonconduction of the current. CONSTITUTION:The current is made to flow from the constant current source 2 through a chopper 3 to the sample 1. The potential difference taken out through the lead wire 4 is held by the sample hold circuits 6-1 and 6-2 through the amplifier 5. From the signal held by the SH circuit the portion of DC of the inductive voltage is eliminated by taking the difference through the substraction circuit 8. For avoiding the output of the spike noise of FET of the SH circuit the sampling signal (d) of the AD converter 9 is set so that the phase thereof forwards than the timing signals (b) and (c) to be controlled by the timing logic circuit 12. The output of the AD converter 9 is put out to the recording terminal 11 through the DA converter 10.
JP1854880A 1980-02-19 1980-02-19 Electric resistance measuring apparatus Pending JPS56115960A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1854880A JPS56115960A (en) 1980-02-19 1980-02-19 Electric resistance measuring apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1854880A JPS56115960A (en) 1980-02-19 1980-02-19 Electric resistance measuring apparatus

Publications (1)

Publication Number Publication Date
JPS56115960A true JPS56115960A (en) 1981-09-11

Family

ID=11974676

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1854880A Pending JPS56115960A (en) 1980-02-19 1980-02-19 Electric resistance measuring apparatus

Country Status (1)

Country Link
JP (1) JPS56115960A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60185151A (en) * 1983-11-10 1985-09-20 シ−メンス、アクチエンゲゼルシヤフト Method of measuring electric resistance of metallic layer
EP0441649A2 (en) * 1990-02-08 1991-08-14 Uponor Bv Inductance and resistance measuring circuit
WO2005088323A1 (en) * 2004-03-08 2005-09-22 Siemens Aktiengesellschaft Method and measurement circuit for measuring an unknown electrical resistance in the presence of an unknown fixed interference voltage or a fixed unknown interference current
JP2008512872A (en) * 2004-09-13 2008-04-24 エレクトロ サイエンティフィック インダストリーズ インコーポレーテッド Analysis method of thermoelectric potential during laser trimming to resistor
CN103257279A (en) * 2013-04-24 2013-08-21 兰州空间技术物理研究所 Device and method for testing medium material radiation induction conductivity for satellite

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60185151A (en) * 1983-11-10 1985-09-20 シ−メンス、アクチエンゲゼルシヤフト Method of measuring electric resistance of metallic layer
EP0441649A2 (en) * 1990-02-08 1991-08-14 Uponor Bv Inductance and resistance measuring circuit
WO2005088323A1 (en) * 2004-03-08 2005-09-22 Siemens Aktiengesellschaft Method and measurement circuit for measuring an unknown electrical resistance in the presence of an unknown fixed interference voltage or a fixed unknown interference current
JP2008512872A (en) * 2004-09-13 2008-04-24 エレクトロ サイエンティフィック インダストリーズ インコーポレーテッド Analysis method of thermoelectric potential during laser trimming to resistor
JP4785854B2 (en) * 2004-09-13 2011-10-05 エレクトロ サイエンティフィック インダストリーズ インコーポレーテッド Analysis method of thermoelectric potential during laser trimming to resistor
CN103257279A (en) * 2013-04-24 2013-08-21 兰州空间技术物理研究所 Device and method for testing medium material radiation induction conductivity for satellite

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