JPS54147085A - Measuring apparatus for degree of vacuum - Google Patents

Measuring apparatus for degree of vacuum

Info

Publication number
JPS54147085A
JPS54147085A JP5619878A JP5619878A JPS54147085A JP S54147085 A JPS54147085 A JP S54147085A JP 5619878 A JP5619878 A JP 5619878A JP 5619878 A JP5619878 A JP 5619878A JP S54147085 A JPS54147085 A JP S54147085A
Authority
JP
Japan
Prior art keywords
discharge
power source
vacuum
current
high voltage
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.)
Granted
Application number
JP5619878A
Other languages
Japanese (ja)
Other versions
JPS5856429B2 (en
Inventor
Yoshihiro Usui
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP5619878A priority Critical patent/JPS5856429B2/en
Publication of JPS54147085A publication Critical patent/JPS54147085A/en
Publication of JPS5856429B2 publication Critical patent/JPS5856429B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Measuring Fluid Pressure (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)

Abstract

PURPOSE: To enable measurement under the same conditions in a wide range of measurements, by forming the discharge current in pulses by means of discharge detection circuit, when measuring the degree of vacuum from the peak value of the discharge current flowing between electrodes by applying high voltage between discharge electrodes provided between vacuum switches.
CONSTITUTION: In a vacuum switch tube 3 to be measured are an oppositely disposed pair of positive and negative discharge electrodes 4a, 4b, and an air core coil 6 is fitted on the outside to apply a magnetic field in the axial direction. The positive side of DC high voltage power source 1 is connected to the positive discharge electrode 4a through a resistor 2, and the negative discharge electrode 4b is grounded through a current measuring circuit 5. When a discharge time detection circuit 9 detects passing of current in a current measuring circuit 5 for a specified period, a reset signal is supplied into an excitation power source 7 to excite said DC power source 1 or air core coil 6, thereby stopping the outputs thereof. On the other hand, a starting switch 8, receiving the output signal, starts the excitation power source 7 and DC high voltage power source 1.
COPYRIGHT: (C)1979,JPO&Japio
JP5619878A 1978-05-11 1978-05-11 Vacuum measuring device Expired JPS5856429B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5619878A JPS5856429B2 (en) 1978-05-11 1978-05-11 Vacuum measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5619878A JPS5856429B2 (en) 1978-05-11 1978-05-11 Vacuum measuring device

Publications (2)

Publication Number Publication Date
JPS54147085A true JPS54147085A (en) 1979-11-16
JPS5856429B2 JPS5856429B2 (en) 1983-12-14

Family

ID=13020413

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5619878A Expired JPS5856429B2 (en) 1978-05-11 1978-05-11 Vacuum measuring device

Country Status (1)

Country Link
JP (1) JPS5856429B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4547769A (en) * 1981-10-30 1985-10-15 Kabushiki Kaisha Meidensha Vacuum monitor device and method for vacuum interrupter
CN114659706A (en) * 2022-05-19 2022-06-24 季华实验室 Vacuum degree detection method, device, electronic equipment, storage medium and system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4547769A (en) * 1981-10-30 1985-10-15 Kabushiki Kaisha Meidensha Vacuum monitor device and method for vacuum interrupter
CN114659706A (en) * 2022-05-19 2022-06-24 季华实验室 Vacuum degree detection method, device, electronic equipment, storage medium and system

Also Published As

Publication number Publication date
JPS5856429B2 (en) 1983-12-14

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