SU887658A1 - Device for detecting skewed weft in fabrics - Google Patents
Device for detecting skewed weft in fabrics Download PDFInfo
- Publication number
- SU887658A1 SU887658A1 SU792751296A SU2751296A SU887658A1 SU 887658 A1 SU887658 A1 SU 887658A1 SU 792751296 A SU792751296 A SU 792751296A SU 2751296 A SU2751296 A SU 2751296A SU 887658 A1 SU887658 A1 SU 887658A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- fabrics
- weft
- frequency
- skewed
- detecting
- Prior art date
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- Looms (AREA)
Description
том ткани, вл етс низкочастотной и не содержит полезной информации, т. е. относитс к шумам. Частота раздела составл ющих может определ тьс , например, по отношению сигнал-шум на выходе детектора 7.The tissue volume is low frequency and does not contain any useful information, i.e. it relates to noise. The frequency of the component separation can be determined, for example, by the signal-to-noise ratio at the output of the detector 7.
При изменении скорости движени ткани измен етс одновременно частота модул ции потока уточными нит ми и указанными шумами, а частота раздела между ними при этом измен етс пропорционально скорости движени ткани.When the speed of movement of the fabric changes, the modulation frequency of the flow with weft yarns and the indicated noises changes simultaneously, and the frequency of the division between them changes in proportion to the speed of movement of the fabric.
Таким образом, электрический сигнал с выхода фотопреобразовател 3 подаетс на вход фильтра 4 высокой частоты, в котором осуществл етс фильтраци высокочастотной составл ющей электрического сигнала, а частота среза устанавливаетс вручную (или автоматически) пропорционально сигналу датчика Ъ скорости движени ткани, выход которого при автоматическом режиме подключен к управл ющему входу фильтра 4 высокой частоты. Далее отфильтрованный сигнал с выхода фильтра 4 высокой частоты усиливаетс усилителем 6, детектируетс детектором 7 и подаетс на регистрирующее устройствоThus, the electrical signal from the output of the photovoltaic converter 3 is fed to the input of the high-frequency filter 4, in which the high-frequency component of the electric signal is filtered, and the cut-off frequency is set manually (or automatically) proportional to the signal of the sensor for the speed of the fabric, the output of which is in automatic mode connected to the control input of the filter 4 high frequency. Further, the filtered signal from the output of the high-frequency filter 4 is amplified by the amplifier 6, detected by the detector 7 and fed to a recording device.
или устройство правки утка (на ч:ёртеже не показаны).or a duck dressing device (not shown on h: draft).
Использование предложенного устройства определени перекоса утка в ткан хThe use of the proposed device for determining duck skew in fabrics
позвол ет повысить точность определени перекоса утка на широком ассортименте тканей в широком диапазоне скоростей технологического оборудовани , что обеспечив .ает повышение производительностиallows you to improve the accuracy of weft skew on a wide range of fabrics in a wide range of technological equipment speeds, which provides increased productivity
и качества выпускаемой продукции.and product quality.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792751296A SU887658A1 (en) | 1979-04-10 | 1979-04-10 | Device for detecting skewed weft in fabrics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792751296A SU887658A1 (en) | 1979-04-10 | 1979-04-10 | Device for detecting skewed weft in fabrics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU887658A1 true SU887658A1 (en) | 1981-12-07 |
Family
ID=20821457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU792751296A SU887658A1 (en) | 1979-04-10 | 1979-04-10 | Device for detecting skewed weft in fabrics |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU887658A1 (en) |
-
1979
- 1979-04-10 SU SU792751296A patent/SU887658A1/en active
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