RU1806363C - Method of manufacturing humidity sensor - Google Patents
Method of manufacturing humidity sensorInfo
- Publication number
- RU1806363C RU1806363C SU914929369A SU4929369A RU1806363C RU 1806363 C RU1806363 C RU 1806363C SU 914929369 A SU914929369 A SU 914929369A SU 4929369 A SU4929369 A SU 4929369A RU 1806363 C RU1806363 C RU 1806363C
- Authority
- RU
- Russia
- Prior art keywords
- dried
- sensor
- fibrous material
- carboxylmethyl cellulose
- moisture
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims abstract description 7
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 5
- 239000002657 fibrous material Substances 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims 1
- 238000004870 electrical engineering Methods 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 4
- 229920002284 Cellulose triacetate Polymers 0.000 description 2
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
Использование: область электротехники , аналитическое приборостроение. Сущность изобретени : волокнистую массу пропитывают в насыщенном солевом рас-,, творе с добавкой карбоксилметилцеллюло- зы, отжимают, сушат и прессуют вместе с выводами определенным давлением в пресс-форме. Затем готовое изделие покрывают защитной пленкой от проникновени вод ных паров внутрь датчика.Usage: field of electrical engineering, analytical instrumentation. SUMMARY OF THE INVENTION: The pulp is impregnated in a saturated saline solution with the addition of carboxylmethyl cellulose, squeezed, dried and pressed together with the leads with a certain pressure in the mold. The finished product is then coated with a protective film to prevent water vapor from entering the sensor.
Description
Изобретение относитс к электротехнике , а именно к области защиты обмоток электрических машин от электрического пробо изол ции.The invention relates to electrical engineering, in particular to the field of protection of windings of electrical machines from electrical breakdown of insulation.
Цель изобретени - повышени работы датчика.The purpose of the invention is to increase the performance of the sensor.
Поставленна цель достигаетс тем, что, волокнистую массу пропитывают смесью насыщенного солевого раствора с добавкой карбоксилметил-целлюлозы, отжимают , сушат до содержани 6-10% влаги, измельчают до однородной массы и формируют изделие вместе с выводными проводниками в пресс-форме усилием 200-250 кг/см2, а затем сушат до посто нного веса и покрывают водным раствором карбоксил- метил целлюлозы до образовани сплошной пленки и затем сушат изделие при температуре 120-150°С, а в качестве волокнистого материала используют отходы триацетата целлюлозы.The goal is achieved in that the pulp is impregnated with a mixture of saturated saline with the addition of carboxylmethyl cellulose, squeezed, dried to a moisture content of 6-10%, crushed to a homogeneous mass and the product is formed together with lead conductors in a mold with a force of 200-250 kg / cm2, and then dried to constant weight and covered with an aqueous solution of carboxyl methyl cellulose to form a continuous film and then dried the product at a temperature of 120-150 ° C, and cellulose triacetate waste is used as a fibrous material vines.
Датчик влажности изготавливают следующим образом.The humidity sensor is made as follows.
Берут в соответствии с количественным заданием на издели волокнистый материал , например отходы триацетата целлюло-. зы. Перед пропиткой приготавливают насыщенный солевой раствор, в который добавл ют карбоксил-метилцеллюлозу. Необходимость такой добавки продиктована соображением придать раствору свойства, обеспечивающие формирование геометрических размеров пропитываемых им изделий , стабильности их размеров и формы во времени при безусловном сохранении необходимой гидроскопичйости издели . Экспериментально установлено, что добавка в насыщенный солевой раствор 1,5-2,0 сухого вещества на 1 л раствора вл етс наиболее оптимальным количеством, обеспечи ваю- щим вышеупом нутые свойства пропитывающего раствора, После пропитки волокнистый материал о тжимают и сушат доTake in accordance with the quantitative task on the product fibrous material, for example waste cellulose triacetate. PS. Before impregnation, a saturated saline solution is prepared in which carboxyl methyl cellulose is added. The need for such an additive is dictated by the consideration of giving the solution properties that ensure the formation of the geometric dimensions of the products it impregnates, the stability of their size and shape over time, while maintaining the necessary hydroscopicity of the product. It has been experimentally established that the addition of 1.5-2.0 dry matter per saturated salt solution per 1 liter of solution is the most optimal amount providing the above-mentioned properties of the impregnating solution. After impregnation, the fibrous material is compressed and dried to
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6-10% влаги. Подготовленную таким образом воло книстую массу помещают вместе с выводными проводниками в пресс-форму и прессуют усилием 200-250 кг/см с выдержкой времени воздействи , не менее 20 с. После прессовани изделие сушат до посто нного веса и покрывают водным раствором карбоксилметилцеллюлозы путем погружени в раствор, а затем сушат изделие при температуре 120-150°С. Использование изобретени позволит получить дешевые и надежные датчики дл защиты обмоток электрических машин от электрического пробо изол ции,6-10% moisture. The fibrous mass thus prepared is placed together with the lead conductors in the mold and pressed with a force of 200-250 kg / cm with an exposure time of at least 20 s. After pressing, the article is dried to constant weight and coated with an aqueous solution of carboxyl methyl cellulose by immersion in a solution, and then the article is dried at a temperature of 120-150 ° C. Using the invention, it will be possible to obtain cheap and reliable sensors for protecting the windings of electrical machines from electrical breakdown of insulation,
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU914929369A RU1806363C (en) | 1991-04-19 | 1991-04-19 | Method of manufacturing humidity sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU914929369A RU1806363C (en) | 1991-04-19 | 1991-04-19 | Method of manufacturing humidity sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| RU1806363C true RU1806363C (en) | 1993-03-30 |
Family
ID=21570803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU914929369A RU1806363C (en) | 1991-04-19 | 1991-04-19 | Method of manufacturing humidity sensor |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU1806363C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117147646A (en) * | 2023-08-29 | 2023-12-01 | 河北工业大学 | A method for batch preparation of paper-based humidity sensors based on laser-induced graphene |
-
1991
- 1991-04-19 RU SU914929369A patent/RU1806363C/en active
Non-Patent Citations (1)
| Title |
|---|
| Авторское свидетельство СССР № 125066, кл.001 N 5/02, 1965. Виглеб Г. Датчики. Устройство и применение. М.: Мир, 1989, с.114-116. * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117147646A (en) * | 2023-08-29 | 2023-12-01 | 河北工业大学 | A method for batch preparation of paper-based humidity sensors based on laser-induced graphene |
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