JPS5690264A - Measuring device of bridge - Google Patents

Measuring device of bridge

Info

Publication number
JPS5690264A
JPS5690264A JP16796179A JP16796179A JPS5690264A JP S5690264 A JPS5690264 A JP S5690264A JP 16796179 A JP16796179 A JP 16796179A JP 16796179 A JP16796179 A JP 16796179A JP S5690264 A JPS5690264 A JP S5690264A
Authority
JP
Japan
Prior art keywords
bridge
capacity
voltage
imaginary
resistance
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
JP16796179A
Other languages
Japanese (ja)
Inventor
Yozo Sakairi
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.)
NIPPON DENKI SANEI KK
SANEI SOKKI KK
Original Assignee
NIPPON DENKI SANEI KK
SANEI SOKKI 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 NIPPON DENKI SANEI KK, SANEI SOKKI KK filed Critical NIPPON DENKI SANEI KK
Priority to JP16796179A priority Critical patent/JPS5690264A/en
Publication of JPS5690264A publication Critical patent/JPS5690264A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R17/00—Measuring arrangements involving comparison with a reference value, e.g. bridge
    • G01R17/10—AC or DC measuring bridges

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

PURPOSE: To unnecessitate initial adjustment of balance by detecting the imaginary- number component signal of each voltage generated between each measuring end of the bridge and reference potential and by making the signal fed back negatively to the measuring end to eliminate the influence of unbalanced capacity.
CONSTITUTION: The resistance brodge is formed by resistances R1WR4 and capacities C1WC4 exist in parallel to these resistance. In a net of four terminals composed of points A, B, C and M, the imaginary-number component of the voltage E1 at the point B is detected by an imaginary-number part detector I1, the output voltage E1' thereof is amplifed by an arror amplifier a21, further by the output voltage E1" of the amplifier is controlled the output voltage E1"' of an amplitude controller f1 and the voltage E1"' is fed back to one end B of the bridge through the intermediary of a capacity CM. By providing a negative feedback loop in such a constitution, the existence of the capacity is eliminated even when the unbalanced capacity exists at each side of the bridge in parallel with the resistance, whereby the initial adjustment of balance can be unnecessitated.
COPYRIGHT: (C)1981,JPO&Japio
JP16796179A 1979-12-24 1979-12-24 Measuring device of bridge Pending JPS5690264A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16796179A JPS5690264A (en) 1979-12-24 1979-12-24 Measuring device of bridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16796179A JPS5690264A (en) 1979-12-24 1979-12-24 Measuring device of bridge

Publications (1)

Publication Number Publication Date
JPS5690264A true JPS5690264A (en) 1981-07-22

Family

ID=15859240

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16796179A Pending JPS5690264A (en) 1979-12-24 1979-12-24 Measuring device of bridge

Country Status (1)

Country Link
JP (1) JPS5690264A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5769258A (en) * 1980-10-20 1982-04-27 Nippon Denshi Kagaku Kk Automatic capacity balancing circuit device for ac bridge
WO2005045449A1 (en) * 2003-11-04 2005-05-19 Raytheon Company Broadband microwave power sensor
US6991367B2 (en) * 2003-11-04 2006-01-31 Raytheon Company Integrated thermal sensor for microwave transistors
JP2009128334A (en) * 2007-11-28 2009-06-11 Mitsutoyo Corp Measuring device and detecting method of impedance

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5769258A (en) * 1980-10-20 1982-04-27 Nippon Denshi Kagaku Kk Automatic capacity balancing circuit device for ac bridge
WO2005045449A1 (en) * 2003-11-04 2005-05-19 Raytheon Company Broadband microwave power sensor
US6991367B2 (en) * 2003-11-04 2006-01-31 Raytheon Company Integrated thermal sensor for microwave transistors
US7030600B2 (en) 2003-11-04 2006-04-18 Raytheon Company Broadband microwave power sensor
JP2009128334A (en) * 2007-11-28 2009-06-11 Mitsutoyo Corp Measuring device and detecting method of impedance

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