CN104034256B - Concentric coplanar quartering ring-fourth class cyclotomy nesting pole plate inclination angle measurement method and device - Google Patents
Concentric coplanar quartering ring-fourth class cyclotomy nesting pole plate inclination angle measurement method and device Download PDFInfo
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Abstract
Concentric coplanar quartering ring fourth class cyclotomy nesting pole plate inclination angle measurement method and device belong to angle measurement technique, wherein the annular coplanar capacitance gauge head of sensor unit is made up of four quadrant shape metallic plates and four quadrant annular metal sheets, eight pieces of metallic plates are coplanar with one heart, four quadrant annular metal sheets be uniformly distributed circumferentially and with four quadrant shape metallic plate one_to_one corresponding, form electric capacity, this annular coplanar capacitance gauge head is placed on round insulation substrate, round insulation substrate is as cylindrical container bottom surface, and by horizontal for this cylindrical container, seal the insulating liquid of injected slurry volume 1/2 in a reservoir, the current potential of eight pieces of metallic plates is taken out and is connected with the input of capacitance measurement unit by current potential lead-in wire, capacitance measurement unit is connected with Dip countion unit；During container run-off the straight, annular coplanar capacitance gauge head changes with the relative position of insulating liquid, by measuring the change of capacitor's capacity, can try to achieve inclination value.
Description
Technical field
The invention belongs to technical field of angle detection, relate generally to a kind of inclination angle measurement method and device.
Background technology
At present, the method for sensing at known measurement inclination angle is that the surface utilizing liquid under static state remains level
Principle.Inside adds the container run-off the straight of liquid, stable after liquid level keep level, but the relative position of liquid and container
There occurs change.The electrical quantities caused by detecting this process changes, and calculates container relative to internal liquid surface
Angle, and then measure the inclination angle of container.
For the sensing mode at the inclination angle between detection container and its internal liquid surface added, electricity can be divided into
Resistive and the big class of electrostatic capacitive two.
Japan Patent 2001-13160 publication describes the correlation technique of resistance sensor, one end is closed
Being encapsulated into appropriate conductive liquid in cylindric canister, opening circular metal plate blocks.Pair of metal electrodes is passed through
Lead to and be fixed on plectane.When the receptacle is tilted, container changes with internal liquid surface angulation, so that metal
Electrode changes with the contact area of conductive liquid so that the resistance between canister and each metal electrode changes.Logical
Cross the change measuring its resistance value, just can detect the inclination angle of container.
But, metal electrode directly contacts with conductive liquid, causes the precipitation of the metal of electrode own, conductive liquid
The electrochemical reaction such as electrolysis, the precision of sensor and stability hardly result in long-term guarantee.
About static capacity type sensor, China's CN1668892A patent describes correlation technique.This sensor is just
It is the conductive liquid of 1/2 amount being encapsulated into internal volume in the tubular hermetic container of electric insulation system, in container parallel two
Placing tabular main electrode on individual side, its surface has silicon to aoxidize coverlay, serves as electrolyte.When the receptacle is tilted, container is with interior
The liquid surface angulation in portion changes so that the electric capacity between tabular main electrode and conductive liquid changes.
Thus, the change to its capacitance measures, to detect the size at the inclination angle of container.
But, in the case of this static capacity type sensor, the angle of inclination occurred when tubular hermetic container is excessive
Time, liquid biasing side within container and lose and the contacting of another main electrode, the most this sensor loses effect.By
In the limitation of principle, its range that can survey inclination angle is the most limited, and depends on the physical dimension within container.
Summary of the invention
The present invention is directed to directly the contacting of metal electrode and conductive liquid in the sensing mode at above-mentioned existing detection inclination angle,
Sensor stability hardly results in long-term guarantee, can survey the problem such as finiteness of inclination angle range, and the present invention proposes and devises
Concentric coplanar quartering ring-fourth class cyclotomy nesting pole plate inclination angle measurement method and device, the insulating liquid used in this invention
The electrochemical reactions such as the precipitation avoiding pole plate, the annular coplanar capacitance structure in sensor unit achieves 360 degree of gamuts
Measure.
The purpose of the present invention is achieved through the following technical solutions:
A kind of concentric coplanar quartering ring-fourth class cyclotomy nesting pole plate inclination angle measurement method, described method step is as follows:
(1), by coplanar to a circular metal plate and outer circle annular metal sheet concentric placement, and circular metal plate and outside
The circular ring metal plate radially quartering, respectively obtains four parts of quadrant shape metallic plates and four parts of quadrant annular gold
Belong to plate, described same segment angle to quadrant shape metallic plate and quadrant annular metal sheet formed electric capacity, institute
State four parts of quadrant shape metallic plates and four parts of quadrant annular metal sheet combinations obtain annular coplanar capacitance gauge head；
(2), being dipped vertically in insulating liquid by annular coplanar capacitance gauge head, the liquid level of insulating liquid is by annular
The center of coplanar capacitance gauge head, same segment angle to quadrant shape metallic plate and quadrant annular metal sheet shape
The capacitor's capacity become is by the dielectric constant of air, the dielectric constant of insulating liquid, respective pole plate exposed part in atmosphere institute
To segment angle and be immersed in insulating liquid part to segment angle together decide on；
(3), above-mentioned annular coplanar capacitance gauge head carry out along center circumference rotate time, its inclination angle changes, insulating properties liquid
The liquid level of body keeps level, annular coplanar capacitance gauge head to change with the relative position of insulating liquid, each pole plate exposed
In air part to segment angle and be immersed in insulating liquid part to segment angle change, measure above-mentioned with
One segment angle to quadrant shape metallic plate and the change of capacitor's capacity that formed of quadrant annular metal sheet, ask
Obtain inclination value.
A kind of concentric coplanar quartering ring-fourth class cyclotomy nesting pole plate dip measuring device, including capacitance measurement unit and
Dip countion unit, described capacitance measurement unit is connected with Dip countion unit；Described device also includes sensor unit, described
The structure of sensor unit is: the opening of the most opening-like cylindrical container seals the circular insulated substrate of assembling,
Cylindrical container intracavity is positioned on face, round insulation substrate inboard equipped annular coplanar capacitance gauge head；Described annular coplanar capacitance is surveyed
Head is made up of four quadrant shape metallic plates and four quadrant annular metal sheets, wherein four quadrant rings
Shape metallic plate is arranged in outside four quadrant shape metallic plates, and four quadrant annular metal sheets and four four points
One of circular metal plate coplanar with one heart, described four quadrant annular metal sheets be uniformly distributed circumferentially and with four four points
One of circular metal plate one_to_one corresponding；Eight current potentials lead-in wire the most respectively by four quadrant shape metallic plates, four four points
One of circular ring metal plate be connected with the input of capacitance measurement unit；Described cylindrical container is horizontal, at described cylinder
Seal injection in container and account for the insulating liquid of cylindrical container volume 1/2nd.
The invention have the characteristics that and good result:
(1) compared with resistance-type dip measuring device, it is insulating liquid due to contact with electrode pad, it is to avoid pole
The electrochemical reactions such as the precipitation of the metal of plate own, therefore, it is possible to the stability of long term maintenance sensor and reliability.
(2) compared with electrostatic capacitive dip measuring device, due to horizontal container can along central axis 360 degree rotation,
The capacitance of output all the time with inclination angle existence function relation, therefore measure scope unrestricted, there are 360 degree of gamuts and measure
Feature.
(3) due to circular metal plate and the outer circle annular metal sheet the most radially quartering, four part 1/4th obtained
Circular metal plate and four parts of quadrant annular metal sheet one_to_one corresponding so that the radial direction cut-off rule of annular coplanar capacitance gauge head
Neighbouring electric force lines distribution is more uniform, eliminates by the produced slight error of radially segmentation from principle, and measurement result is more
Add accurately.
Accompanying drawing explanation
Fig. 1 is the profile of the sensor unit of concentric coplanar quartering ring-fourth class cyclotomy nesting pole plate dip measuring device
Perspective view
Fig. 2 be concentric coplanar quartering ring-fourth class cyclotomy nesting pole plate dip measuring device sensor unit in annular
The principle schematic of coplanar capacitance gauge head
Fig. 3 be concentric coplanar quartering ring-fourth class cyclotomy nesting pole plate dip measuring device sensor unit in annular
The front view of coplanar capacitance gauge head
Fig. 4 be concentric coplanar quartering ring-fourth class cyclotomy nesting pole plate dip measuring device sensor unit in annular
Explanatory diagram when coplanar capacitance gauge head tilts
Fig. 5 is the overall structure schematic diagram of concentric coplanar quartering ring-fourth class cyclotomy nesting pole plate dip measuring device
In figure piece number explanation: 1 annular coplanar capacitance gauge head, 2,3,4,5 quadrant shape metallic plates, 6,7,8,9 four points
One of circular ring metal plate, 10 round insulation substrates, 11 cylindrical containers, 12 insulating liquid, 13,14,15,16,17,18,
19,20 current potential lead-in wires, 21 sensor units, 22 capacitance measurement unit, 23 Dip countion unit.
Detailed description of the invention
Below in conjunction with the accompanying drawings the embodiment of the present invention is described in detail.
A kind of concentric coplanar quartering ring-fourth class cyclotomy nesting pole plate dip measuring device, including sensor unit 21, electricity
Hold measuring unit 22 and Dip countion unit 23, be illustrated in figure 5 the overall structure schematic diagram of dip measuring device.
The perspective physical form view of the sensor unit of dip measuring device shown in Fig. 1, the structure of described sensor unit 21
It is: the opening of the most opening-like cylindrical container 11 seals the circular insulated substrate 10 of assembling, at cylindrical container 11
Intracavity is positioned at equipped annular coplanar capacitance gauge head 1 on the inboard face of round insulation substrate 10；Described annular coplanar capacitance gauge head 1 is by four
2,3,4,5 and four quadrant annular metal sheets 6,7,8,9 of individual quadrant shape metallic plate are constituted, wherein four four points
One of circular ring metal plate 6,7,8,9 be arranged in outside four quadrant shape metallic plates 2,3,4,5, and four 1/4th
Circular ring metal plate 6,7,8,9 is coplanar concentric with four quadrant shape metallic plates 2,3,4,5, described four quadrants
Annular metal sheet 6,7,8,9 be uniformly distributed circumferentially and with four quadrant shape metallic plate 2,3,4,5 one_to_one corresponding；Eight
Current potential lead-in wire 13,14,15,16,17,18,19,20 is the most respectively by four quadrant shape metallic plates 2,3,4,5, four four
/ mono-circular ring metal plate 6,7,8,9 is connected with the input of capacitance measurement unit 22；Described cylindrical container 11 in horizontal,
In described cylindrical container 11, seal injection account for the insulating liquid 12 of cylindrical container 11 volume 1/2nd.
Described round insulation substrate 10 is made up of resin glass fiber material.
Described insulating liquid 12 is by methanol, ethanol, the alcohols of isopropanol, acetone, the ketone of butanone, diglycol monotertiary
One or more in the ethers of butyl ether become the liquid of subassembly.
A kind of concentric coplanar quartering ring-fourth class cyclotomy nesting pole plate inclination angle measurement method, the method step is as follows:
(1) by coplanar to a circular metal plate and outer circle annular metal sheet concentric placement, and circular metal plate and outside
The circular ring metal plate radially quartering, respectively obtains four parts of quadrant shape metallic plates and four parts of quadrant annular gold
Belong to plate, described same segment angle to quadrant shape metallic plate and quadrant annular metal sheet formed electric capacity, institute
State four parts of quadrant shape metallic plates and four parts of quadrant annular metal sheet combinations obtain annular coplanar capacitance gauge head.
Referring to the drawings 2, between the metallic plate of annular coplanar capacitance gauge head, electric lines of force is uniformly distributed along metallic plate, can approximate with half
Circular arc line replaces.Solution formula according to single coplanar capacitance, it is known that annular coplanar capacitance becomes with dielectric dielectric constant
Proportional relation, can be represented by the formula.
C=K ε
(2) being dipped vertically in insulating liquid by annular coplanar capacitance gauge head, the liquid level of insulating liquid is by annular
The center of coplanar capacitance gauge head, same segment angle to quadrant shape metallic plate and quadrant annular metal sheet shape
The capacitor's capacity become is by the dielectric constant of air, the dielectric constant of insulating liquid, respective pole plate exposed part in atmosphere institute
To segment angle and be immersed in insulating liquid part to segment angle together decide on.
Fig. 3 be dip measuring device sensor unit in annular coplanar capacitance gauge head front view, 2,6 shapes of metallic plate
Electric capacity that the electric capacity that becomes, the electric capacity that formed of metallic plate 3,7, metallic plate 4,8 are formed and the electric capacity that metallic plate 5,9 is formed
Can represent with following formula respectively.
(3), when above-mentioned annular coplanar capacitance gauge head carries out circumference rotation along center, its inclination angle changes, insulating liquid
Liquid level keep level, annular coplanar capacitance gauge head change with the relative position of insulating liquid, each pole plate is exposed at sky
In gas part to segment angle and be immersed in insulating liquid part to segment angle change.
Fig. 4 illustrates explanatory diagram when annular coplanar capacitance gauge head tilts.Electric capacity that now metallic plate 2,6 is formed, metal
Electric capacity that electric capacity that plate 3,7 is formed, metallic plate 4,8 are formed and the electric capacity that metallic plate 5,9 is formed are respectively as follows:
Above formula combination is made difference can obtain:
And then the solution formula trying to achieve inclination angle is:
By capacitance measurement unit and Dip countion unit, the signal obtained is compared process, i.e. can get inclination angle
Output.
Claims (4)
1. concentric coplanar quartering ring-fourth class cyclotomy nesting pole plate inclination angle measurement method, it is characterised in that: described method walks
Rapid as follows:
(1), by coplanar to a circular metal plate and outer circle annular metal sheet concentric placement, and circular metal plate and outside annulus
The shape metallic plate radially quartering, respectively obtains four parts of quadrant shape metallic plates and four parts of quadrant endless metals
Plate, same segment angle to quadrant shape metallic plate and quadrant annular metal sheet formed electric capacity, described four parts
Quadrant shape metallic plate and four parts of quadrant annular metal sheet combinations obtain annular coplanar capacitance gauge head；
(2), being dipped vertically in insulating liquid by annular coplanar capacitance gauge head, the liquid level of insulating liquid is coplanar by annular
The center of electric capacity gauge head, same segment angle to quadrant shape metallic plate and quadrant annular metal sheet formed
Capacitor's capacity by the dielectric constant of air, the exposed part in atmosphere of the dielectric constant of insulating liquid, respective pole plate to
Segment angle and be immersed in insulating liquid part to segment angle together decide on；
(3), above-mentioned annular coplanar capacitance gauge head carry out along center circumference rotate time, its inclination angle changes, insulating liquid
Liquid level keeps level, annular coplanar capacitance gauge head to change with the relative position of insulating liquid, and each pole plate is exposed at air
Middle part to segment angle and be immersed in insulating liquid part to segment angle change, measure above-mentioned same fan
Shape angle to quadrant shape metallic plate and quadrant annular metal sheet formed capacitor's capacity, try to achieve inclination value.
2. concentric coplanar quartering ring-fourth class cyclotomy nesting pole plate dip measuring device, including capacitance measurement unit (22)
With Dip countion unit (23), described capacitance measurement unit (22) is connected with Dip countion unit (23)；It is characterized in that: described
Device also includes that sensor unit (21), the structure of described sensor unit (21) are: the most opening-like cylinder holds
The opening of device (11) seals the circular insulated substrate (10) of assembling, is positioned at round insulation substrate at cylindrical container (11) intracavity
(10) equipped annular coplanar capacitance gauge head (1) on inboard face；Described annular coplanar capacitance gauge head (1) is by four quadrant shapes
Metallic plate (2,3,4,5) and four quadrant annular metal sheets (6,7,8,9) are constituted, wherein four quadrant annulars
Metallic plate (6,7,8,9) is arranged in four quadrant shape metallic plate (2,3,4,5) outsides, and four quadrant annulars
Metallic plate (6,7,8,9) is coplanar concentric with four quadrant shape metallic plates (2,3,4,5), described four quadrant rings
Shape metallic plate (6,7,8,9) be uniformly distributed circumferentially and with four quadrant shape metallic plate (2,3,4,5) one_to_one corresponding；Eight
Root current potential lead-in wire (13,14,15,16,17,18,19,20) the most respectively by four quadrant shape metallic plates (2,3,4,5),
Four quadrant annular metal sheets (6,7,8,9) are connected with the input of capacitance measurement unit (22)；Described cylinder holds
Device (11), in horizontal, seal injection in described cylindrical container (11) and accounts for the insulation of cylindrical container (11) volume 1/2nd
Property liquid (12).
Concentric coplanar quartering ring the most according to claim 2-fourth class cyclotomy nesting pole plate dip measuring device, its feature
It is: described round insulation substrate (10) is made up of resin glass fiber material.
Concentric coplanar quartering ring the most according to claim 2-fourth class cyclotomy nesting pole plate dip measuring device, its feature
It is: described insulating liquid (12) is by methanol, ethanol, the alcohols of isopropanol, acetone, the ketone of butanone, diglycol monotertiary
One or more in ethers three class I liquid I of butyl ether become the liquid of subassembly.
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| WO2015165316A1 (en) * | 2014-04-28 | 2015-11-05 | 哈尔滨工业大学 | Method and device for measuring dip angle of oppositely crossly placed paired quartered ring-quartered circle nested polar plates |
| CN104748726A (en) * | 2015-03-21 | 2015-07-01 | 朱增伟 | Easy inclination angle gauge |
| CN105953774A (en) * | 2016-06-30 | 2016-09-21 | 无锡中地钻探装备有限公司 | Anti-tilting indicating device for oil derrick |
| CN108267087B (en) * | 2016-12-30 | 2020-02-07 | 北京金风科创风电设备有限公司 | Positioning device and positioning method |
| CN112229379B (en) * | 2020-09-25 | 2022-09-27 | 南京信息职业技术学院 | Electrolyte fan cylinder shape variable inclination angle tester |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002082017A1 (en) * | 2001-04-09 | 2002-10-17 | Korea Research Institute Of Standards And Science | Capacitive sensor for measuring of inclination |
| CN2733311Y (en) * | 2004-10-26 | 2005-10-12 | 辽宁工程技术大学 | Capacitance-type inclination angle sensor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4014326B2 (en) * | 1999-02-18 | 2007-11-28 | 本田技研工業株式会社 | Capacitive tilt sensor |
| JP4350600B2 (en) * | 2003-10-31 | 2009-10-21 | 株式会社東海理化電機製作所 | Capacitive tilt angle sensor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002082017A1 (en) * | 2001-04-09 | 2002-10-17 | Korea Research Institute Of Standards And Science | Capacitive sensor for measuring of inclination |
| CN2733311Y (en) * | 2004-10-26 | 2005-10-12 | 辽宁工程技术大学 | Capacitance-type inclination angle sensor |
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