JPS5465905A - Circuit for detecting loose contact - Google Patents
Circuit for detecting loose contactInfo
- 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
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
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)
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 |
-
1977
- 1977-11-04 JP JP13144077A patent/JPS5465905A/en active Pending
Cited By (2)
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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