KR900013313A - Resistance Current Measuring Device - Google Patents

Resistance Current Measuring Device Download PDF

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Publication number
KR900013313A
KR900013313A KR1019890002109A KR890002109A KR900013313A KR 900013313 A KR900013313 A KR 900013313A KR 1019890002109 A KR1019890002109 A KR 1019890002109A KR 890002109 A KR890002109 A KR 890002109A KR 900013313 A KR900013313 A KR 900013313A
Authority
KR
South Korea
Prior art keywords
output
voltage
inverter
analog
frequency converter
Prior art date
Application number
KR1019890002109A
Other languages
Korean (ko)
Other versions
KR910006305B1 (en
Inventor
나석주
박수웅
Original Assignee
전학제
한국과학기술원
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 전학제, 한국과학기술원 filed Critical 전학제
Priority to KR1019890002109A priority Critical patent/KR910006305B1/en
Publication of KR900013313A publication Critical patent/KR900013313A/en
Application granted granted Critical
Publication of KR910006305B1 publication Critical patent/KR910006305B1/en

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/145Indicating the presence of current or voltage
    • G01R19/15Indicating the presence of current

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

Abstract

내용 없음No content

Description

저항용 접전류 측정장치.Contact current measuring device for resistance.

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 본 발명의 저항용 접전류 측정장치의 일실시회로도,2 is an exemplary circuit diagram of a contact current measuring device for resistance of the present invention;

제3도는 본 발명의 저항용 접전류 측정장치의 다른실시 회로도.Figure 3 is another embodiment of the resistance contact current measuring device of the present invention.

Claims (2)

환상코일의 유도전압(Vt)을 접지전위와 비교하는 비교기(11)와, 이 비교기(11)의 출력신호를 반전하는 인버터(12)와, 이 인버터(12)의 출력신호제어를 받아 상기 환상코일의 유도전압(Vt)을 출력단자(A1),(B1)로 선택적으로 출력하는 아날로그 멀티플렉서(13)와, 이 아날로그 멀티플렉서(13)의 출력단자(B1)에서 출력되는 전압을 반전하는 아날로그 인버터(14)와, 상기 아날로그 멀티플렉서(13)의 출력단자(A1) 및 상기 아날로그 인버터(14)의 출력전압을 그의 크기에 따라 소정 주파수의 펄스신호로 변환하는 전압/주파수 변환기(15)와, 상기 인버터(12)의 출력신호제어를 받아 상기 전압/주파수 변환기(15)의 펄스신호를 출력단자(A2), (B2)로 선택적으로 출력하는 아날로그 멀리플렉서(16)와, 이 아날로그 멀티플렉서(16)의 출력단자(A2)에 펄스신호가 출력될때 가산카운트하고 출력단자(B2)에 펄스신호가 출력될 때 감산하는 카운터(17)로 구성된 것을 특징으로 하는 저항용 접전류 측정장치.The comparator 11 for comparing the induced voltage Vt of the annular coil with the ground potential, the inverter 12 for inverting the output signal of the comparator 11, and the output signal control of the inverter 12, An analog multiplexer 13 that selectively outputs the induced voltage Vt of the coil to the output terminals A1 and B1 and an analog inverter that inverts the voltage output from the output terminal B1 of the analog multiplexer 13. (14), a voltage / frequency converter (15) for converting the output terminal (A1) of the analog multiplexer (13) and the output voltage of the analog inverter (14) into pulse signals of a predetermined frequency according to the magnitude thereof; An analog multiplexer 16 for selectively outputting the pulse signal of the voltage / frequency converter 15 to the output terminals A2 and B2 under the control of the output signal of the inverter 12, and the analog multiplexer 16; Counts up when the pulse signal is output to the output terminal (A2) Contact resistance current measurement apparatus according to claim to the output terminal (B2) that is configured as a counter (17) for subtracting when the pulse signal output. 환상코일의 유도전압(Vt)을 적분하는 적분기(21)와, 이 적분기(221)의 출력전압을 반전하는 아날로그 인버터(22)와, 이 아날로그 인버터(22)의 출력전압을 그의 크기에 따라 소정주파수의 펄스신호로 변환하는 전압/주파수 변환기(23)와, 이 전압/주파수 변환기(23)에서 출력되는 펄스신호를 컴퓨터(27)의 제어를 받아 일정기간씩 반복적으로 계수하는 카운터(24)로 구성하여된 것을 특징으로 하는 저항용접전류 측정장치.The integrator 21 for integrating the induced voltage Vt of the annular coil, the analog inverter 22 for inverting the output voltage of the integrator 221, and the output voltage of the analog inverter 22 are determined according to their magnitude. A voltage / frequency converter 23 for converting a pulse signal of a frequency, and a counter 24 for counting pulse signals output from the voltage / frequency converter 23 repeatedly under a control of a computer 27 for a predetermined period of time. Resistance welding current measuring device, characterized in that configured. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890002109A 1989-02-22 1989-02-22 Resistance welding current detecting apparatus KR910006305B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890002109A KR910006305B1 (en) 1989-02-22 1989-02-22 Resistance welding current detecting apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890002109A KR910006305B1 (en) 1989-02-22 1989-02-22 Resistance welding current detecting apparatus

Publications (2)

Publication Number Publication Date
KR900013313A true KR900013313A (en) 1990-09-05
KR910006305B1 KR910006305B1 (en) 1991-08-19

Family

ID=19284010

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890002109A KR910006305B1 (en) 1989-02-22 1989-02-22 Resistance welding current detecting apparatus

Country Status (1)

Country Link
KR (1) KR910006305B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020044397A (en) * 2000-12-06 2002-06-15 이구택 Current detector of transformer for welder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020044397A (en) * 2000-12-06 2002-06-15 이구택 Current detector of transformer for welder

Also Published As

Publication number Publication date
KR910006305B1 (en) 1991-08-19

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