JPS5465905A - Circuit for detecting loose contact - Google Patents

Circuit for detecting loose contact

Info

Publication number
JPS5465905A
JPS5465905A JP13144077A JP13144077A JPS5465905A JP S5465905 A JPS5465905 A JP S5465905A JP 13144077 A JP13144077 A JP 13144077A JP 13144077 A JP13144077 A JP 13144077A JP S5465905 A JPS5465905 A JP S5465905A
Authority
JP
Japan
Prior art keywords
circuit
output
full wave
handling
wave rectifying
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
JP13144077A
Other languages
Japanese (ja)
Inventor
Shunsuke Horie
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP13144077A priority Critical patent/JPS5465905A/en
Publication of JPS5465905A publication Critical patent/JPS5465905A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

PURPOSE: To provide a circuit for detecting loose contact which enables automatic measurement of loose contact property between a stringing and a current collecting element in collecting current or receiving signals by a moving body employing a stringing.
CONSTITUTION: This circuit comprises: A sine wave generation circuit 5 which generates a sine wave voltage in which the potential level and the phase of an DC voltage from a current collecting element as not illustrated are adjusted to roughly coincide, a first full wave rectifying circuit 6 for handling the full wave rectifying circuit 6 for handling the full wave rectifying of the output, a second full wave rectifying circuit 7 for handling the full wave rectifying of the sine wave voltage from the current collecting element, a subtraction circuit 8 for determining the difference in the output from both the rectifying circuits 6 and 7, a division circuit adapted to normalize the output of the two circuits by dividing with the output of the rectifying circuit 6, a third full wave rectifying circuit 10 for handling the full wave rectifying circuit 10 for handling the full wave rectifying of the output of the circuit 9, a low-pass filter circuit 11 for removing high frequency component of the output, and a Schmitt circuit 12 for handling the Schmitt treatment of the output at a given level.
COPYRIGHT: (C)1979,JPO&Japio
JP13144077A 1977-11-04 1977-11-04 Circuit for detecting loose contact Pending JPS5465905A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13144077A JPS5465905A (en) 1977-11-04 1977-11-04 Circuit for detecting loose contact

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13144077A JPS5465905A (en) 1977-11-04 1977-11-04 Circuit for detecting loose contact

Publications (1)

Publication Number Publication Date
JPS5465905A true JPS5465905A (en) 1979-05-28

Family

ID=15058003

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13144077A Pending JPS5465905A (en) 1977-11-04 1977-11-04 Circuit for detecting loose contact

Country Status (1)

Country Link
JP (1) JPS5465905A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014110735A (en) * 2012-12-04 2014-06-12 Railway Technical Research Institute Local wear detection device of slider, and local wear detection program for the same
JP2014110736A (en) * 2012-12-04 2014-06-12 Railway Technical Research Institute Local wear detection device of slider, and local wear detection program for the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014110735A (en) * 2012-12-04 2014-06-12 Railway Technical Research Institute Local wear detection device of slider, and local wear detection program for the same
JP2014110736A (en) * 2012-12-04 2014-06-12 Railway Technical Research Institute Local wear detection device of slider, and local wear detection program for the same

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