JPS6454371A - Pulsation detector - Google Patents

Pulsation detector

Info

Publication number
JPS6454371A
JPS6454371A JP62212614A JP21261487A JPS6454371A JP S6454371 A JPS6454371 A JP S6454371A JP 62212614 A JP62212614 A JP 62212614A JP 21261487 A JP21261487 A JP 21261487A JP S6454371 A JPS6454371 A JP S6454371A
Authority
JP
Japan
Prior art keywords
voltage
pulsation
current transformer
resistor
conductor
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
JP62212614A
Other languages
Japanese (ja)
Inventor
Naoyoshi Uesugi
Takehiro Kobayashi
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.)
Toshiba Corp
Toshiba AVE Co Ltd
Original Assignee
Toshiba Corp
Toshiba Audio Video Engineering 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 Toshiba Corp, Toshiba Audio Video Engineering Co Ltd filed Critical Toshiba Corp
Priority to JP62212614A priority Critical patent/JPS6454371A/en
Publication of JPS6454371A publication Critical patent/JPS6454371A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE:To accurately detect a pulsation waveform on a conductor without any power loss by providing a current transformer which has a resistor at an output terminal, a minimum voltage holder, and a differential amplifier. CONSTITUTION:The current transformer 5 is mounted on the conductor 1 and has the resistor 6 at the output terminal. Then the current transformer 5 generates a pulsating current induced with a pulsation flow on the conductor 1 and a pulsation voltage is developed across the resistance 6. This pulsation voltage is applied to one input terminal of the differential amplifier 7. Further, the minimum voltage holder 8 holds the lowest voltage among voltages outputted by the current transformer 5. The differential amplifier 7 receives the lowest voltage outputted by the minimum voltage holder 8 and the voltage outputted by the resistor 6 and amplifies them differential to output the pulsation waveform based upon the lowest voltage without any power loss.
JP62212614A 1987-08-26 1987-08-26 Pulsation detector Pending JPS6454371A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62212614A JPS6454371A (en) 1987-08-26 1987-08-26 Pulsation detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62212614A JPS6454371A (en) 1987-08-26 1987-08-26 Pulsation detector

Publications (1)

Publication Number Publication Date
JPS6454371A true JPS6454371A (en) 1989-03-01

Family

ID=16625598

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62212614A Pending JPS6454371A (en) 1987-08-26 1987-08-26 Pulsation detector

Country Status (1)

Country Link
JP (1) JPS6454371A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0656543A2 (en) * 1993-12-01 1995-06-07 Sumitomo Wiring Systems, Ltd. Withstand voltage-testing apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0656543A2 (en) * 1993-12-01 1995-06-07 Sumitomo Wiring Systems, Ltd. Withstand voltage-testing apparatus
EP0656543A3 (en) * 1993-12-01 1996-06-19 Sumitomo Wiring Systems Withstand voltage-testing apparatus.

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