JPS5745467A - Converter for resistance variation detection by noncontacting method - Google Patents

Converter for resistance variation detection by noncontacting method

Info

Publication number
JPS5745467A
JPS5745467A JP12068580A JP12068580A JPS5745467A JP S5745467 A JPS5745467 A JP S5745467A JP 12068580 A JP12068580 A JP 12068580A JP 12068580 A JP12068580 A JP 12068580A JP S5745467 A JPS5745467 A JP S5745467A
Authority
JP
Japan
Prior art keywords
ferrite cores
bridge
impedance
resistance variation
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
JP12068580A
Other languages
Japanese (ja)
Inventor
Tadaaki Nakane
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.)
JIYUPITAA TRANS KK
JIYUPITAA TRANSFORMER KK
Original Assignee
JIYUPITAA TRANS KK
JIYUPITAA TRANSFORMER 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 JIYUPITAA TRANS KK, JIYUPITAA TRANSFORMER KK filed Critical JIYUPITAA TRANS KK
Priority to JP12068580A priority Critical patent/JPS5745467A/en
Publication of JPS5745467A publication Critical patent/JPS5745467A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Resistance Or Impedance (AREA)

Abstract

PURPOSE:To detect the extent of resistance variation with >=99.9% conversion efficiency by using a honeycomb coil matched with the impedance of a bridge. CONSTITUTION:A nonmagnetic material shaft 9 is inserted into coaxial hollow different-diameter ferrite cores 2 and 3 and bowl-shaped ferrite cores 1 and 4, and the ferrite cores 1 and 4 are turned with a <=3mm. air gap to detect the extent of resistance variation. When a coil 5 having about 700OMEGA secondary impedance at the primary side 7 and secondary side 8 of an input side and at an input side while bridge impedance is 350OMEGA is inserted into the ferrite cores 1-4, outputs each have >=99.9% conversion efficiency for variation of one bridge side in response to a 3V and 5kHz input. This device is of a noncontacting type, so variations in resistance are detected with high efficiency without influences of noises due to contact resistances.
JP12068580A 1980-09-02 1980-09-02 Converter for resistance variation detection by noncontacting method Pending JPS5745467A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12068580A JPS5745467A (en) 1980-09-02 1980-09-02 Converter for resistance variation detection by noncontacting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12068580A JPS5745467A (en) 1980-09-02 1980-09-02 Converter for resistance variation detection by noncontacting method

Publications (1)

Publication Number Publication Date
JPS5745467A true JPS5745467A (en) 1982-03-15

Family

ID=14792410

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12068580A Pending JPS5745467A (en) 1980-09-02 1980-09-02 Converter for resistance variation detection by noncontacting method

Country Status (1)

Country Link
JP (1) JPS5745467A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6142920U (en) * 1984-08-24 1986-03-20 株式会社 トレビアン七宝工芸 Cloisonne urn

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6142920U (en) * 1984-08-24 1986-03-20 株式会社 トレビアン七宝工芸 Cloisonne urn

Similar Documents

Publication Publication Date Title
JPS55134359A (en) Detector of rotation speed of turbocharger
JPS5745467A (en) Converter for resistance variation detection by noncontacting method
ES295689U (en) Eddy current probes for detecting faults in structures and methods of detecting such faults.
JPS6435261A (en) Probe for isolated eddy current
JPS57131051A (en) System for changing waveform of flaw detection signal in eddy-current flaw detection
JPS56153202A (en) Displacement detecting device
JPS5739344A (en) Eddy current flaw detector
RU1818603C (en) Device for checking magnetic system of loud speaker
JPS5421124A (en) Print control system
JPS6435201A (en) Displacement detecting apparatus
JPS55155202A (en) Position detector
JPS52147748A (en) Phaseless voltage detector
JPS5670245A (en) Double feed detection system
SU593134A1 (en) Eddy current transducer for flaw detection
DE3783869D1 (en) FLOW-COMPENSATED CURRENT TRANSFORMER.
JPS52111785A (en) Flaw detector
JPS5357089A (en) Magnetic field generator for measurement device using electromagneticultrasonic waves
JPS5793264A (en) Detector for high-frequency current
JPS5329184A (en) Eddy current flaw detector
JPS5764188A (en) Ferrite detector
JPS55166042A (en) Eddy current inspecting apparatus
JPS528869A (en) Amplitude differential detectio circuit
JPS5650339A (en) Copying apparatus
JPS533883A (en) Eddy current inspecting apparatus
JPS549652A (en) Differential transformer type sensor