CN203704920U - Differential capacitive liquid movable electrode tilt sensor - Google Patents
Differential capacitive liquid movable electrode tilt sensor Download PDFInfo
- Publication number
- CN203704920U CN203704920U CN201420100176.XU CN201420100176U CN203704920U CN 203704920 U CN203704920 U CN 203704920U CN 201420100176 U CN201420100176 U CN 201420100176U CN 203704920 U CN203704920 U CN 203704920U
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- China
- Prior art keywords
- fixed electorde
- electrode
- liquid
- insulation course
- fixed
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- Expired - Fee Related
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model relates to a differential capacitive liquid movable electrode tilt sensor. The tilt sensor consists of a fixed electrode A (1), a fixed electrode B (2), a liquid electrode (3), an insulating layer (4), a front cover plate (5) and a back cover plate (6), wherein the insulating layer (4) is cylindrical, the fixed electrode A (1) and the fixed electrode B (2) are semi-cylindrical and right fixed outside the insulating layer (4), and the fixed electrode A (1) and the fixed electrode B (2) are distributed bilaterally symmetrically. A cavity of the insulating layer (4) is sealed by the front cover plate (5) and the back cover plate (6), half of the cavity is filled with a conductive solution to form the liquid electrode (3), and the fixed electrode A (1), the fixed electrode B (2) and the liquid electrode (3) form two differential capacitors; when the sensor is rotated on a horizontal plane, differential capacitance is identical, when the sensor is placed on an tilting plane, one of thedifferential capacitance is increased, and the other is decreased, and the tilt angle of the tilting plane is determined through measurement of the difference of the differential capacitance.
Description
Technical field
The utility model relates to sensing, machinery, instrument and manufacturing technology, refers in particular to for measurement plane a kind of electrolevel with respect to inclined degree in a direction.
Background technology
Traditional level meter is air bubble type level meter, and air bubble type level meter mainly relies on the side-play amount in bubble offsetting level centre position to carry out the unevenness in a certain region, measuring workpieces surface.Its defect is: air bubble type level meter is very sensitive to temperature, and along with the rising of temperature, bubble length changes, and the size of bubbler tube inner chamber also changes, and causes apparatus measures error to increase; Secondly, the each workplace of air bubble type level meter will be before use whether carry out the zero-bit of determined level instrument according to the position of bubble accurate, and can only measure the horizontality of limited direction, can not detect the angle of inclination; Moreover whether tested planar horizontal obtains with the departure degree of zero-bit by eyes observation level bubble phase pair, testing result has artificial property.This patent designs a kind of differential capacitance type obliquity sensor, for level meter electronization creates conditions.
Summary of the invention
This utility model is the problem that solves the existence of traditional air bubble type level meter, designs a kind of differential capacitance type obliquity sensor.This device is made up of fixed electorde A (1), fixed electorde B (2), liquid electrode (3), insulation course (4), front shroud (5) and back shroud (6); Fixed electorde A (1) and fixed electorde B (2) are just in time fixed on the outside of insulation course (4), and front shroud (5) and back shroud (6) are by the cavity sealing of insulation course (4).Insulation course (4) is cylindrical, makes with insulating material; Fixed electorde A (1) and fixed electorde B (2) are semi-cylindrical, make with metal material, fixed electorde A (1) and fixed electorde B (2) are close to the outside surface of insulation course (4), fixed electorde A (1) and the symmetrical distribution of fixed electorde B (2).Front shroud (5) and back shroud (6) are by the insulation course of cylinder shape (4) closed at both ends.Liquid electrode (3) is made up of conduction liquid, is contained in the enclosed cavity of insulation course (4) half in its volume duty chamber; Liquid electrode (3) forms differential capacitor with fixed electorde A (1), fixed electorde B (2).
The beneficial effect of this utility model is that structure is simple, cost is low, highly sensitive.
Accompanying drawing explanation
Fig. 1 is utility model structural representation, and 1 is that fixed electorde A, 2 is that fixed electorde B, 3 is that liquid electrode, 4 is that insulation course, 5 is that front shroud, 6 is back shroud.
Embodiment
This utility model is made up of fixed electorde A (1), fixed electorde B (2), liquid electrode (3), insulation course (4), front shroud (5) and back shroud (6); Fixed electorde A (1) and fixed electorde B (2) are just in time fixed on the outside of insulation course (4), and front shroud (5) and back shroud (6) are by the cavity sealing of insulation course (4).Insulation course (4) is cylindrical, makes with insulating material; Fixed electorde A (1) and fixed electorde B (2) are semi-cylindrical, make with metal material, fixed electorde A (1) and fixed electorde B (2) are close to the outside surface of insulation course (4), fixed electorde A (1) and the symmetrical distribution of fixed electorde B (2).Front shroud (5) and back shroud (6) are by the insulation course of cylinder shape (4) closed at both ends.Liquid electrode (3) is made up of conduction liquid, is contained in the enclosed cavity of insulation course (4) half in its volume duty chamber; Liquid electrode (3) forms differential capacitor with fixed electorde A (1), fixed electorde B (2).
In the present embodiment, for to adopt the face of cylinder made of plastic, internal diameter is 24mm to insulation course (4), and external diameter is 26mm, and cylinder wall thickness is 1mm, and cylinder is long is 25mm; Fixed electorde A (1), fixed electorde B (2) adopt Copper Foil to make, adopt two block length 25mm, wide 40mm Copper Foil is pasted on the surface of insulation course (4), form symmetrical two semi-cylindricals, two semi-cylindricals insulate each other, form fixed electorde A (1) and fixed electorde B (2).
In the present embodiment, front shroud (5) and back shroud (6) adopt transparent plastic sheet to make circle, and diameter is 26mm, sticks on the two ends of insulation course (4) by super glue, forms annular seal space.Conduction liquid is injected in annular seal space with syringe, conduction liquid volume accounts for the half of annular seal space volume, and front shroud (5) is squeezed into tinsel below, and tinsel keeps and conduction liquid electrical connection, forms the lead-in wire of liquid electrode (3).
In the present embodiment, in the time that this utility model is placed on surface level, fixed electorde A (1), fixed electorde B (2) are symmetrical, form differential capacitor with liquid electrode (3), and now capacitance size equates; In the time that this utility model is tilted to the left, left side electric capacity is greater than the right electric capacity, otherwise left side electric capacity is less than the right electric capacity, and the scope that this sensor detects inclination angle is-90 °～90 °.
Claims (4)
1. the liquid moving electrode obliquity sensor of differential capacitance type, is characterized in that being made up of fixed electorde A (1), fixed electorde B (2), liquid electrode (3), insulation course (4), front shroud (5) and back shroud (6); Fixed electorde A (1) and fixed electorde B (2) are just in time fixed on the outside of insulation course (4), and front shroud (5) and back shroud (6) are by the cavity sealing of insulation course (4).
2. the liquid moving electrode obliquity sensor of a kind of differential capacitance type according to claim 1, is characterized in that insulation course (4) is for cylindrical, makes with insulating material; Fixed electorde A (1) and fixed electorde B (2) are semi-cylindrical, make with metal material, fixed electorde A (1) and fixed electorde B (2) are close to the outside surface of insulation course (4), fixed electorde A (1) and the symmetrical distribution of fixed electorde B (2).
3. the liquid moving electrode obliquity sensor of a kind of differential capacitance type according to claim 1, is characterized in that front shroud (5) and back shroud (6) are by the insulation course of cylinder shape (4) closed at both ends.
4. the liquid moving electrode obliquity sensor of a kind of differential capacitance type according to claim 1, is characterized in that liquid electrode (3) is made up of conduction liquid, is contained in the enclosed cavity of insulation course (4) half in its volume duty chamber; Liquid electrode (3) forms differential capacitor with fixed electorde A (1), fixed electorde B (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420100176.XU CN203704920U (en) | 2014-03-06 | 2014-03-06 | Differential capacitive liquid movable electrode tilt sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420100176.XU CN203704920U (en) | 2014-03-06 | 2014-03-06 | Differential capacitive liquid movable electrode tilt sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203704920U true CN203704920U (en) | 2014-07-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420100176.XU Expired - Fee Related CN203704920U (en) | 2014-03-06 | 2014-03-06 | Differential capacitive liquid movable electrode tilt sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203704920U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103837134A (en) * | 2014-03-06 | 2014-06-04 | 湖南科技学院 | Differential capacitor type obliquity sensor |
| RU216542U1 (en) * | 2022-02-21 | 2023-02-14 | ФЕДЕРАЛЬНОЕ ГОСУДАРСТВЕННОЕ КАЗЕННОЕ ВОЕННОЕ ОБРАЗОВАТЕЛЬНОЕ УЧРЕЖДЕНИЕ ВЫСШЕГО ОБРАЗОВАНИЯ Военная академия Ракетных войск стратегического назначения имени Петра Великого МИНИСТЕРСТВА ОБОРОНЫ РОССИЙСКОЙ ФЕДЕРАЦИИ | DEVICE TO PREVENT VEHICLE ROLL-OVER |
-
2014
- 2014-03-06 CN CN201420100176.XU patent/CN203704920U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103837134A (en) * | 2014-03-06 | 2014-06-04 | 湖南科技学院 | Differential capacitor type obliquity sensor |
| RU216542U1 (en) * | 2022-02-21 | 2023-02-14 | ФЕДЕРАЛЬНОЕ ГОСУДАРСТВЕННОЕ КАЗЕННОЕ ВОЕННОЕ ОБРАЗОВАТЕЛЬНОЕ УЧРЕЖДЕНИЕ ВЫСШЕГО ОБРАЗОВАНИЯ Военная академия Ракетных войск стратегического назначения имени Петра Великого МИНИСТЕРСТВА ОБОРОНЫ РОССИЙСКОЙ ФЕДЕРАЦИИ | DEVICE TO PREVENT VEHICLE ROLL-OVER |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20150306 |
|
| EXPY | Termination of patent right or utility model |