CN2199529Y - Tube-type stage capacitor sensor - Google Patents
Tube-type stage capacitor sensor Download PDFInfo
- Publication number
- CN2199529Y CN2199529Y CN 94240007 CN94240007U CN2199529Y CN 2199529 Y CN2199529 Y CN 2199529Y CN 94240007 CN94240007 CN 94240007 CN 94240007 U CN94240007 U CN 94240007U CN 2199529 Y CN2199529 Y CN 2199529Y
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- pole
- utility
- tube
- model
- split pole
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- Expired - Fee Related
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to a tube-type capacitor sensor. A metal main duct is arranged as a concentrating pole of a capacitor, and the upper end of the concentrating pole is provided with a flange disc for fixation, while the exterior of the concentrating pole are connected with a plurality of branch poles at different heights by insulators. The inside of a main tube is provided with shielding cables connected with the branch tubes respectively, and each branch pole and the concentrating pole form a capacitor, and the change of the capacitance is showed by the output signal of the amplifiers in the main tube. The utility model has simple structure and convenient installation with no movable components in the entire device, and is basically free form the effect of the change of temperature, dampness and pressure with high checking accuracy; the utility model can detect the materials of which the relative dielectric constant is more than 2.
Description
The utility model relates to a kind of measurement mechanism, specifically a kind of tubular type grading capacitance sensor that is used for monitoring tun solid material position.
We know, exist a large amount of bulk solids in thermal power plant, oil, chemical industry, the metal industry production, and they generally are to adopt bunker or hold-up tank to store.To wherein material position, what monitoring is requisite in the production run.Traditional solid material level measurement mechanism is that discontinuity is measured mostly, can't realize robotization, as hand Weight type; Some automated watch-keeping facilities have appearred at present, provided a container level sensor as patent CN2103794U, it adopts polar-plate-type electric capacity to make sensor, utilize between pole plate material to change to cause that changes in capacitance is handled by amplifying circuit that the material position is monitored, but in the observation process, solid material storage easily is clipped between pole plate, the signal mistake usually takes place show, and be subject to influences such as humidity, density; Patent CN2068230 has provided a tubular type capacitive transducer, and it is with some groups of cylinders, emitter tube, receiving pole tube, shielding cylinder on a slender metal pipe, and emitter tube and receiving pole tube are formed sensor, its complex structure, cost height.The inapplicable environment harsh conditions of the sensor is used.
The purpose of this utility model is exactly in order to overcome the deficiency of above-mentioned monitoring device and sensor, a kind of movable member simple in structure, easy for installation, no to be provided, and segmentation detects accurately, is suitable for the tubular type grading capacitance sensor that mal-condition such as High Temperature High Pressure uses down.
For achieving the above object, a kind of tubular type grading capacitance sensor, it is characterized in that it is provided with the metal person in charge and is the concentrated utmost point of electric capacity, its upper end is provided with the fixedly ring flange of usefulness, outside differing heights is connected with some split poles by insulator, the screen fraud cable that is connected with split pole respectively is housed in the person in charge, and each split pole and the concentrated utmost point constitute an electric capacity, show capacitance variations by the amplifier output signal that is located in being responsible for.
The utility model is to concentrate the utmost point with the metal person in charge, is provided with several split poles at its differing heights, has formed several electric capacity, and solid material variation has betwixt constituted change medium type electric capacity.The big I of split pole area can be processed into tubulose according to the specific inductive capacity setting of tested material, also can be processed into tabularly, also can be processed as terminal.By differing heights changes in capacitance sensing, can show the height of materials position.The utility model connects transmission line and all is located in the person in charge, sound construction, and no movable member, is suitable for using under the rugged surroundings high temperature high voltage resistant.
Below in conjunction with accompanying drawing the utility model is described further:
Fig. 1 is the utility model structural representation.
As can be seen from Figure 1, a kind of tubular type grading capacitance sensor, its be provided with one long 6 meters, the stainless-steel tube of φ 76 is for being responsible for (1), it is actual to be a concentrated utmost point of electric capacity, its upper end is provided with a ring flange (2), be used for the person in charge (1) is fixed on bunker or stores tank deck,, be responsible for the outside differing heights of (1) in ring flange (2) bottom, be provided with 11 pipe shape split poles (3) evenly and at intervals, split pole (3) can be by the stainless-steel tube processing of φ 20.Split pole (3) also can be tabular by steel plate processing.They are respectively as another utmost points of 11 electric capacity.It is fastened on respectively on the person in charge (1), is provided with resistant to elevated temperatures insulator (4) between them.The utility model also is provided with 11 shielded cables (5) in being responsible for, and each root passes in insulator respectively, is connected with corresponding split pole.The utility model person in charge (1) forms 11 electric capacity respectively with the split pole (3) in the outside like this, solid material position betwixt, the variation of height, its corresponding capacitance variations embodies by being responsible for (1) interior dielectric amplifier, and can be shown on the relevant instrument, No. 11 amplifiers link to each other with 11 cables respectively.Amplifier belongs to prior art, and this does not give unnecessary details.The utility model improves monitoring accuracy for reducing fixed capacity, and the lead of the shielded cable of employing is with teflon insulation layer, porcelain tube, metallic shield net, porcelain tube outward successively.
The utility model vertically inserts in the container in use, by ring flange (2) upper end is fixed, leaded receiving on the relevant signal Displaying Meter in (1) will be responsible for, energized is adjusted and is respectively organized sensor, can clearly show exactly that material stores situation in the container.
The utility model is simple in structure, firm, and whole device does not have movable member, easy for installation, good airproof performance, and the disposable back Maintenance free of debuging is not subjected to temperature, humidity, pressure variable effect substantially, is adapted to operate under the various environment.Segmentation accuracy in detection height, all relative dielectric constants all can be monitored greater than 2 material.
Claims (3)
1, a kind of tubular type grading capacitance sensor, it is characterized in that it is provided with the metal person in charge and is the concentrated utmost point of electric capacity, its upper end is provided with the fixedly ring flange of usefulness, outside differing heights is connected with some split poles by insulator, the screen fraud cable that is connected with split pole respectively is housed in the person in charge, each split pole and the concentrated utmost point constitute an electric capacity, show capacitance variations by the amplifier output signal that is located in being responsible for.
2, tubular type split pole capacitive transducer as claimed in claim 1 is characterized in that said split pole in a tubular form.
3, tubular type split pole capacitive transducer as claimed in claim 1 is characterized in that the lead outside of said shielded cable is with teflon insulation layer, porcelain tube, metal screen layer, porcelain tube successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94240007 CN2199529Y (en) | 1994-03-18 | 1994-03-18 | Tube-type stage capacitor sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94240007 CN2199529Y (en) | 1994-03-18 | 1994-03-18 | Tube-type stage capacitor sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2199529Y true CN2199529Y (en) | 1995-05-31 |
Family
ID=33847079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94240007 Expired - Fee Related CN2199529Y (en) | 1994-03-18 | 1994-03-18 | Tube-type stage capacitor sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2199529Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109632041A (en) * | 2019-01-23 | 2019-04-16 | 黑河学院 | It is a kind of to detect accurate natural calamity detection device and its detection method |
-
1994
- 1994-03-18 CN CN 94240007 patent/CN2199529Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109632041A (en) * | 2019-01-23 | 2019-04-16 | 黑河学院 | It is a kind of to detect accurate natural calamity detection device and its detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |