JPS5772579A - Threadlike material travelling detector - Google Patents
Threadlike material travelling detectorInfo
- Publication number
- JPS5772579A JPS5772579A JP14763980A JP14763980A JPS5772579A JP S5772579 A JPS5772579 A JP S5772579A JP 14763980 A JP14763980 A JP 14763980A JP 14763980 A JP14763980 A JP 14763980A JP S5772579 A JPS5772579 A JP S5772579A
- Authority
- JP
- Japan
- Prior art keywords
- threadlike
- travelling
- dielectric constant
- signal
- electrode
- 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
- Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
Abstract
PURPOSE: To make it possible to surely detect the breaking of a thread in noncontact in a method of detecting the travelling of a threadlike material on a, for example, spinning stage, by establishing an electrostatic field between a charging electrode and a signal electrode.
CONSTITUTION: A threadlike material 1 travels through a gap between a charging electrode 2 and a signal electrode 3 which are opposed together and are electrically connected through a resistor 5 having a high resistance to a DC source 4. Supporting that the voltage of the DC source 4 is "V" and the dielectric constant of the threadlike member 1 is "E", the electric charge "Q" charged between the electrodes 2, 3 is determined by Q=K.V.E. Irregularity in the diameter or density of the threadlike member 1 causes fluctuations of the dielectric constant E which produce, at the junction point of the signal electrode 3 and the high resistance resistor 5, variations in electric potential. The variations is taken out as a thread travelling signal and is indicated on a display device 7 through an amplifier 6. When the travelling of the threadlike member 1 is suspended due to the breaking thereof, the dielectric constant becomes unchanged, thereby the travelling signal disappears.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14763980A JPS5772579A (en) | 1980-10-23 | 1980-10-23 | Threadlike material travelling detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14763980A JPS5772579A (en) | 1980-10-23 | 1980-10-23 | Threadlike material travelling detector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5772579A true JPS5772579A (en) | 1982-05-06 |
Family
ID=15434878
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14763980A Pending JPS5772579A (en) | 1980-10-23 | 1980-10-23 | Threadlike material travelling detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5772579A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4019461A1 (en) * | 1989-07-04 | 1991-01-17 | Benninger Ag Maschf | Capacitative yarn monitor - has shrouding over the sensor field for the yarn to pass between them |
JP2002538060A (en) * | 1999-03-03 | 2002-11-12 | イーロ パテント アクチェンゲゼルシャフト | How to monitor the running / stopped state of yarn |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5034659A (en) * | 1973-07-31 | 1975-04-03 | ||
JPS53103039A (en) * | 1977-02-10 | 1978-09-07 | Zellweger Uster Ag | Electrostatic capacity yarn monitor |
-
1980
- 1980-10-23 JP JP14763980A patent/JPS5772579A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5034659A (en) * | 1973-07-31 | 1975-04-03 | ||
JPS53103039A (en) * | 1977-02-10 | 1978-09-07 | Zellweger Uster Ag | Electrostatic capacity yarn monitor |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4019461A1 (en) * | 1989-07-04 | 1991-01-17 | Benninger Ag Maschf | Capacitative yarn monitor - has shrouding over the sensor field for the yarn to pass between them |
JP2002538060A (en) * | 1999-03-03 | 2002-11-12 | イーロ パテント アクチェンゲゼルシャフト | How to monitor the running / stopped state of yarn |
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