CN2432565Y - Continuous capacitance sensor - Google Patents
Continuous capacitance sensor Download PDFInfo
- Publication number
- CN2432565Y CN2432565Y CN 00215270 CN00215270U CN2432565Y CN 2432565 Y CN2432565 Y CN 2432565Y CN 00215270 CN00215270 CN 00215270 CN 00215270 U CN00215270 U CN 00215270U CN 2432565 Y CN2432565 Y CN 2432565Y
- Authority
- CN
- China
- Prior art keywords
- main pole
- capacitance sensor
- continuous capacitance
- insulating layer
- ring flange
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a continuous capacitance sensor provided with a metal flexible main pole, wherein, the upper end of which is provided with a flange disc used for fixation. The upper part of the flange disc is provided with a capacitance transmitter. The main pole is insulated and fixed with the flange disc and a material bin through an insulating mat. The main pole and the bin wall of the material bin are respectively provided with one stage, which forms a variable medium continuous capacitor. The outer side of the main pole is wrapped with a flexible insulating layer, wherein, the outer side of which is sheathed with one layer of protecting sleeve which is composed of a plurality of high-strength insulating short pipes. Scaling electrodes are respectively arranged at a plurality of determined heights. The utility model has the advantages of simple structure, easy transportation and installation, high measuring precision, shock resistance and wear resistance.
Description
The utility model relates to a kind of measurement mechanism, specifically a kind of continuous capacitive transducer.
We know, for solid material in the specific feed bin (powdery or bulk) amount what, utilizing the capacitive transducer measurement is one of more convenient at present, practical means.CN 2315543Y discloses a kind of level sensor, it is provided with a metal tube, be responsible for top and be provided with the fixing ring flange of using, being responsible at a certain distance along metal below the ring flange, series arrangement is provided with some groups of metal split poles, the shielded cable that is connected with each split pole is contained in the person in charge, itself and the transmitter of being responsible for join, and are provided with insulation spacer between the metal person in charge and each split pole, and insulation spacer is full of the space of easy material folding between the person in charge and each split pole.Though this technology energy measurement goes out the quantity of material in the feed bin, calibration electrode place is hung the influence of powder easily, and divides and as easy as rolling off a logly smashed by lump material, and secondly the sensor construction of rigidity is complicated, is unfavorable for installation, transportation and long-term work.
The purpose of this utility model is exactly in order to overcome above-mentioned the deficiencies in the prior art, and a kind of simple structure is provided, and is easy to transportation, measuring accuracy height, shock resistance, anti abrasive continuous capacitance sensor are installed.
For achieving the above object, the utility model can be realized by following measure: be provided with a metal main pole, the main pole upper end is provided with the fixing ring flange of using, ring flange top is provided with capacitive pick-up, main pole is fixing by insulating mat and ring flange and feed bin insulation, main pole and feed bin bulkhead are respectively a utmost point, constitute and become the medium continuous capacitance, its technical characterstic is that main pole is the flexible metal electrode, the main pole outside is wrapped with flexible insulating layer, and the flexible insulating layer outside is with the protective jacket that one deck is made up of a plurality of high strength insulation short tubes.
The utility model also can be implemented by following arranging: the some definite calibration electrodes that highly are provided with in the flexible insulating layer outside.Mortar head, mortar bowl formula respective outer side edges are adopted in the end of two adjacent protective jackets.The main pole lower end is provided with a weight.
This real new structure is simple; main pole is a flexible metallic material; insulation course also is a flexible material; the protective sleeve that protective seam is made up of more piece rigid insulation short tube; so this capacitive transducer is easy to transportation, installs; impact resistance is strong, and is not hung the influence of powder, can continuously, accurately measure the quantity of material in delivering from godown.
The utility model will be further described below in conjunction with accompanying drawing:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the utility model partial sectional view.
Fig. 3 is the partial sectional view of the utility model calibration electrode position.
From Fig. 1, Fig. 2, Fig. 3 as can be seen, the utility model is provided with a metal main pole 1, it is a flexible material, can adopt cable wire, main pole 1 outside evenly is covered with one deck flexible insulating layer 2, in insulation course 2 outsides according to actual needs, whenever keep at a certain distance away and be fixed with a calibration electrode 4, calibration electrode 4 is made by stainless steel corrosion-resistant, that be difficult for bridging, it is shaped as columnar structured, insulation course 2 outsides at calibration electrode 4 two ends are with a plurality of protective jackets of being made up of high strength insulation short tube 3, and protective jacket 3 is shaped as hollow cylindrical structure.Can adopt mortar head, mortar bowl formula respective outer side edges between two adjacent protective jacket 3 ends.Calibration electrode 4 is connected to by private cable 5 between capacitive pick-up 7, and private cable 5 passes protective jacket 3 and is subjected to the protection of protective jacket 3.Main pole 1 upper end in flexible metal is provided with that fixing ring flange 6 tops are provided with capacitive pick-up 7 with ring flange 6, and main pole 1 is fixing with ring flange 6 and feed bin insulation by insulating mat, and main pole 1 and feed bin bulkhead (the earth) are the two poles of the earth of change medium continuous capacitance.Main pole 1 lower end is fixed with weight 8, relies on the effect of weight 8 own wts to make flexible metal main pole 1 be in vertical state all the time, thereby guarantees the accuracy of measurement.
Under the utility model normal condition, metal main pole of measuring 1 and the capacitance signal between the feed bin bulkhead, electrode 1 is not a fixed signal with the signal of bin wall when having material, can be removed with the method for electronics, for measuring signal that controlling level measures is the capacitor C 1 between material part metals electrode 1 and the bulkhead of having in the storehouse, it is the result of two parts capacitances in series, a part is attached to insulation course (comprising flexible insulating layer 2 and the insulating sheath 3) capacitor C 2 around the metal electrode 1, a part is the capacitor C 3 from insulating sheath 3 to bulkhead, C1=C2*C3/ (C2+C3), when material water ratio improved, C3 was much larger than C2, and then C1 is approximately equal to C2.The utility model is applicable to the measurement to the lump material height, is particularly useful for the material that some cause its dielectric coefficient significantly to improve because of reason such as moisture.Generally speaking, because the influence of the sharp keen point of lump material, flexible insulating layer 2 is worn through and ineffective easily, because protective jacket 3 has stronger impact resistance, can prevent effectively that insulation course 2 is destroyed.When material arrived calibration electrode 4, it exported an enough strong calibration capacitance signal to capacitive pick-up 7 rapidly, calibrated by 7 pairs of main poles 1 of capacitive pick-up, and the result that will calibrate was as calibrating the foundation that preceding 1 pair of thing position of main pole is measured next time.
Claims (4)
1, a kind of continuous capacitance sensor, it is provided with a metal main pole, the main pole upper end is provided with the fixing ring flange of using, ring flange top is provided with capacitive pick-up, and main pole is fixing by insulating mat and ring flange and feed bin insulation, and main pole and feed bin bulkhead are respectively a utmost point, constitute and become the medium continuous capacitance, it is characterized in that main pole is the flexible metal electrode, the main pole outside is wrapped with flexible insulating layer, and the flexible insulating layer outside is with the protective jacket that one deck is made up of a plurality of high strength insulation short tubes.
2,, it is characterized in that the some definite calibration electrodes that highly are provided with in the said flexible insulating layer outside according to the described continuous capacitance sensor of claim 1.
3,, it is characterized in that mortar head, mortar bowl formula respective outer side edges are adopted in the end of said adjacent two protective jackets according to the described continuous capacitance sensor of claim 1.
4,, it is characterized in that said main pole lower end is provided with a weight according to the described continuous capacitance sensor of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00215270 CN2432565Y (en) | 2000-06-22 | 2000-06-22 | Continuous capacitance sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00215270 CN2432565Y (en) | 2000-06-22 | 2000-06-22 | Continuous capacitance sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2432565Y true CN2432565Y (en) | 2001-05-30 |
Family
ID=33581241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00215270 Expired - Lifetime CN2432565Y (en) | 2000-06-22 | 2000-06-22 | Continuous capacitance sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2432565Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003083415A1 (en) * | 2002-03-29 | 2003-10-09 | Qiming Wang | A multiphase level sensor |
| CN101907478A (en) * | 2010-07-30 | 2010-12-08 | 威海海和科技有限责任公司 | Capacitance type continuous material level sensor |
| CN106092260A (en) * | 2016-06-06 | 2016-11-09 | 哈尔滨研拓科技发展有限公司 | A kind of high accuracy discrete type capacitance level transducer |
-
2000
- 2000-06-22 CN CN 00215270 patent/CN2432565Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003083415A1 (en) * | 2002-03-29 | 2003-10-09 | Qiming Wang | A multiphase level sensor |
| CN101907478A (en) * | 2010-07-30 | 2010-12-08 | 威海海和科技有限责任公司 | Capacitance type continuous material level sensor |
| CN106092260A (en) * | 2016-06-06 | 2016-11-09 | 哈尔滨研拓科技发展有限公司 | A kind of high accuracy discrete type capacitance level transducer |
| CN106092260B (en) * | 2016-06-06 | 2019-02-19 | 哈尔滨研拓科技发展有限公司 | A kind of high-precision discrete type capacitance level transducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WEIHAI HAIHE TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: INSTRUMENT DIVISION, BEIYANG ELECTRIC GROUP CO., LTD., WEIHAI Effective date: 20041126 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20041126 Address after: Annex 264200 Shandong province Weihai gaoqu Beiyang building Patentee after: Haihe Science &. Technology Co., Ltd., Weihai Address before: Annex 264200 Shandong province Weihai gaoqu Beiyang building Patentee before: Instrument Division, Beiyang Electric Group Co., Ltd., Weihai |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20010530 |