JPS5396881A - Pantagraph lose contact measuring apparatus - Google Patents

Pantagraph lose contact measuring apparatus

Info

Publication number
JPS5396881A
JPS5396881A JP1066777A JP1066777A JPS5396881A JP S5396881 A JPS5396881 A JP S5396881A JP 1066777 A JP1066777 A JP 1066777A JP 1066777 A JP1066777 A JP 1066777A JP S5396881 A JPS5396881 A JP S5396881A
Authority
JP
Japan
Prior art keywords
pantagraph
measuring apparatus
lose contact
contact measuring
light
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
JP1066777A
Other languages
Japanese (ja)
Other versions
JPS5537036B2 (en
Inventor
Kenji Horiki
Matsutaro Ichikawa
Fumio Nakama
Kenichi Uesugi
Fukuo Iwatani
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.)
JAPANESE NATIONAL RAILWAYS<JNR>
Hitachi Ltd
Japan National Railways
Hitachi High Tech Corp
Original Assignee
JAPANESE NATIONAL RAILWAYS<JNR>
Hitachi Ltd
Japan National Railways
Hitachi Electronics 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 JAPANESE NATIONAL RAILWAYS<JNR>, Hitachi Ltd, Japan National Railways, Hitachi Electronics Engineering Co Ltd filed Critical JAPANESE NATIONAL RAILWAYS<JNR>
Priority to JP1066777A priority Critical patent/JPS5396881A/en
Publication of JPS5396881A publication Critical patent/JPS5396881A/en
Publication of JPS5537036B2 publication Critical patent/JPS5537036B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)

Abstract

PURPOSE: To accurately measure the time and times of lose contact by optically capturing arc light procuced when a pantagraph loses contact from a trolley wire, subjecting the light to photoslectric conversion and inputting the electric signal to a discrimination circuit.
COPYRIGHT: (C)1978,JPO&Japio
JP1066777A 1977-02-04 1977-02-04 Pantagraph lose contact measuring apparatus Granted JPS5396881A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1066777A JPS5396881A (en) 1977-02-04 1977-02-04 Pantagraph lose contact measuring apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1066777A JPS5396881A (en) 1977-02-04 1977-02-04 Pantagraph lose contact measuring apparatus

Publications (2)

Publication Number Publication Date
JPS5396881A true JPS5396881A (en) 1978-08-24
JPS5537036B2 JPS5537036B2 (en) 1980-09-25

Family

ID=11756583

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1066777A Granted JPS5396881A (en) 1977-02-04 1977-02-04 Pantagraph lose contact measuring apparatus

Country Status (1)

Country Link
JP (1) JPS5396881A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS583501A (en) * 1981-06-26 1983-01-10 Japanese National Railways<Jnr> Measuring instrument for separation of trolley wire
JPH04251501A (en) * 1990-12-28 1992-09-07 Railway Technical Res Inst Pantograph contact loss measuring method and processing circuit therefor

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56152688A (en) * 1980-04-30 1981-11-26 San Moodo Kouhatsu Kk Movable attachment for sewing machine
JPS6214885A (en) * 1985-07-13 1987-01-23 中日本ジューキ株式会社 Method and apparatus for shearing sewing of cylindrical cloth edge
JPS6241740Y2 (en) * 1986-04-30 1987-10-26

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS583501A (en) * 1981-06-26 1983-01-10 Japanese National Railways<Jnr> Measuring instrument for separation of trolley wire
JPH04251501A (en) * 1990-12-28 1992-09-07 Railway Technical Res Inst Pantograph contact loss measuring method and processing circuit therefor

Also Published As

Publication number Publication date
JPS5537036B2 (en) 1980-09-25

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