CN104034313B - The nested pole plate inclination angle measurement method of concentric coplanar ring-trisection ring-circle and device - Google Patents
The nested pole plate inclination angle measurement method of concentric coplanar ring-trisection ring-circle and device Download PDFInfo
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- CN104034313B CN104034313B CN201410179299.1A CN201410179299A CN104034313B CN 104034313 B CN104034313 B CN 104034313B CN 201410179299 A CN201410179299 A CN 201410179299A CN 104034313 B CN104034313 B CN 104034313B
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- 238000000691 measurement method Methods 0.000 title claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 101
- 229910052751 metal Inorganic materials 0.000 claims abstract description 101
- 239000007788 liquid Substances 0.000 claims abstract description 56
- 238000005259 measurement Methods 0.000 claims abstract description 14
- 239000003990 capacitor Substances 0.000 claims abstract description 11
- 239000000758 substrate Substances 0.000 claims abstract description 11
- 238000009413 insulation Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 8
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 6
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 4
- 239000010931 gold Substances 0.000 claims description 4
- 229910052737 gold Inorganic materials 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 150000001298 alcohols Chemical class 0.000 claims description 2
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 2
- 150000002170 ethers Chemical class 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- 150000002576 ketones Chemical class 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims 2
- CGKQZIULZRXRRJ-UHFFFAOYSA-N Butylone Chemical group CCC(NC)C(=O)C1=CC=C2OCOC2=C1 CGKQZIULZRXRRJ-UHFFFAOYSA-N 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000002002 slurry Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000003487 electrochemical reaction Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
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- 230000003068 static effect Effects 0.000 description 3
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 238000005868 electrolysis reaction Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
- G01C9/20—Measuring inclination, e.g. by clinometers, by levels by using liquids the indication being based on the inclination of the surface of a liquid relative to its container
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/02—Details
- G01C9/06—Electric or photoelectric indication or reading means
- G01C2009/062—Electric or photoelectric indication or reading means capacitive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
- G01C2009/185—Measuring inclination, e.g. by clinometers, by levels by using liquids dielectric
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The nested pole plate inclination angle measurement method of concentric coplanar ring trisection ring circle belongs to angle measurement technique with device, wherein the annular coplanar capacitance gauge head of sensor unit is by a circular metal plate, three 1/3rd circular ring metal plates and a circular ring metal plate composition, five pieces of metallic plates are coplanar with one heart, three 1/3rd circular ring metal plates are uniformly distributed circumferentially, each piece and circular metal plate, circular ring metal plate forms 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 five 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
The nested pole plate inclination angle measurement method of concentric coplanar ring-trisection ring-circle and device, the insulating liquid used in this invention is avoided
The electrochemical reactions such as the precipitation of pole plate, annular coplanar capacitance structure in sensor unit achieves 360 degree of gamuts and measures.
The purpose of the present invention is achieved through the following technical solutions:
The nested pole plate inclination angle measurement method of a kind of concentric coplanar ring-trisection ring-circle, described method step is as follows:
(1), by a central circular metallic plate, transition circle annular metal sheet with outer circle annular metal sheet is coplanar puts with one heart
Put, and transition circle annular metal sheet radially trisection, obtain three part of 1/3rd circular ring metal plate, described every a three points
One of circular ring metal plate respectively with central circular metallic plate formed electric capacity, described every a 1/3rd circular ring metal plates divide
Other and outer circle annular metal sheet forms electric capacity, described central circular metallic plate and outer circle annular metal sheet electrical grounding,
One central circular metallic plate, three part of 1/3rd circular ring metal plate obtain annular with the combination of outer circle annular metal sheet
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, the capacitor's capacity that every a 1/3rd circular ring metal plates and central circular metallic plate are formed with
And the capacitor's capacity that formed of every a 1/3rd circular ring metal plates and outer circle annular metal sheet by the dielectric constant of air,
The dielectric constant of insulating liquid, respective pole plate exposed in atmosphere part 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 three
Capacitor's capacity that/mono-circular ring metal plate and central circular metallic plate are formed and above-mentioned 1/3rd circular ring metal plates
With the change of the capacitor's capacity that outer circle annular metal sheet is formed, try to achieve inclination value.
The nested pole plate dip measuring device of a kind of concentric coplanar ring-trisection ring-circle, including capacitance measurement unit and inclination angle
Computing unit, described capacitance measurement unit is connected with Dip countion unit；Described device also includes sensor unit, described sensing
The structure of device unit is: the opening of the most opening-like cylindrical container seals the circular insulated substrate of assembling, at cylinder
Equipped annular coplanar capacitance gauge head it is positioned on face, round insulation substrate inboard in body container chamber；Described annular coplanar capacitance gauge head by
One circular metal plate, three 1/3rd circular ring metal plates and a circular ring metal plate are constituted, wherein three three/
One circular ring metal plate is arranged in outside a circular metal plate, a circular ring metal plate is inboard, and three 1/3rd circles
Annular metal sheet and a circular metal plate, a circular ring metal plate are coplanar concentric, three 1/3rd circular ring metal plates
It is uniformly distributed circumferentially；Five current potentials lead-in wire the most respectively by circular metal plate, three 1/3rd circular ring metal plates, one
Circular ring metal plate is connected with the input of capacitance measurement unit；Described cylindrical container is horizontal, at described cylindrical container
Interior sealing injection accounts 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) outside circular ring metal plate and central circular metallic plate electrical grounding participate in capacitance calculation, is equivalent to
Increase the area of central circular metallic plate, improve the sensitivity of measurement of dip angle, simultaneously to three part of 1/3rd annular gold
Belong to plate and serve current potential protective effect, decrease the interference of outer bound pair 1/3rd circular ring metal plate so that measurement result is more
Add accurately.
Accompanying drawing explanation
Fig. 1 is the profile perspective of the sensor unit of the nested pole plate dip measuring device of concentric coplanar ring-trisection ring-circle
Figure
Fig. 2 be the nested pole plate dip measuring device of concentric coplanar ring-trisection ring-circle sensor unit in annular coplanar
The principle schematic of electric capacity gauge head
Fig. 3 be the nested pole plate dip measuring device of concentric coplanar ring-trisection ring-circle sensor unit in annular coplanar
The front view of electric capacity gauge head
Fig. 4 be the nested pole plate dip measuring device of concentric coplanar ring-trisection ring-circle sensor unit in annular coplanar
Explanatory diagram when electric capacity gauge head tilts
Fig. 5 is the overall structure schematic diagram of the nested pole plate dip measuring device of concentric coplanar ring-trisection ring-circle
In figure piece number explanation: 1 annular coplanar capacitance gauge head, 2 circular metal plates, 3,4,1/5th three circular ring metal plate,
6 circular ring metal plates, 7 round insulation substrates, 8 cylindrical containers, 9 insulating liquid, 10,11,12,13,14 current potentials lead-in wire, 15
Sensor unit, 16 capacitance measurement unit, 17 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.
The nested pole plate dip measuring device of a kind of concentric coplanar ring-trisection ring-circle, including sensor unit 15, electric capacity
Measuring unit 16 and Dip countion unit 17, 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 15
It is: the opening of the most opening-like cylindrical container 8 seals the circular insulated substrate 7 of assembling, at cylindrical container 8 intracavity
It is positioned at equipped annular coplanar capacitance gauge head 1 on the inboard face of round insulation substrate 7；Described annular coplanar capacitance gauge head 1 is by a circle
Shape metallic plate 3,4,5 and circular ring metal plate 6 of 2, three 1/3rd circular ring metal plates is constituted, wherein three three/
One circular ring metal plate 3,4,5 is arranged in outside a circular metal plate 2, a circular ring metal plate 6 is inboard, and three three points
One of 2, circular ring metal plate 6 of circular ring metal plate 3,4,5 and a circular metal plate coplanar concentric, three 1/3rd
Circular ring metal plate 3,4,5 is uniformly distributed circumferentially；Five current potential lead-in wires 10,11,12,13,14 are the most respectively by circular metal
Plate 3,4,5, circular ring metal plate of 2, three 1/3rd circular ring metal plates 6 connects with the input of capacitance measurement unit 16
Connect；Described cylindrical container 8, in horizontal, seal injection in described cylindrical container 8 and accounts for cylindrical container 8 volume 1/2nd
Insulating liquid 9.
Described round insulation substrate 7 is made up of resin glass fiber material.
Described insulating liquid 9 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.
The nested pole plate inclination angle measurement method of a kind of concentric coplanar ring-trisection ring-circle, the method step is as follows:
(1) by a central circular metallic plate, transition circle annular metal sheet with outer circle annular metal sheet is coplanar puts with one heart
Put, and transition circle annular metal sheet radially trisection, obtain three part of 1/3rd circular ring metal plate, described every a three points
One of circular ring metal plate respectively with central circular metallic plate formed electric capacity, described every a 1/3rd circular ring metal plates divide
Other and outer circle annular metal sheet forms electric capacity, described central circular metallic plate and outer circle annular metal sheet electrical grounding,
One central circular metallic plate, three part of 1/3rd circular ring metal plate obtain annular with the combination of outer circle annular metal sheet
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, the capacitor's capacity that every a 1/3rd circular ring metal plates and central circular metallic plate are formed with
And the capacitor's capacity that formed of every a 1/3rd circular ring metal plates and outer circle annular metal sheet by the dielectric constant of air,
The dielectric constant of insulating liquid, respective pole plate exposed in atmosphere part to segment angle and be immersed in insulating liquid
Part to segment angle together decide on.
Fig. 3 be inclination angle sensing device sensor unit in annular coplanar capacitance gauge head front view, 2,3 shapes of metallic plate
Electric capacity that electric capacity that the electric capacity that becomes, the electric capacity that formed of metallic plate 2,4, metallic plate 2,5 are formed, metallic plate 3,6 are formed, gold
Belong to the electric capacity that formed of plate 4,6 and electric capacity that metallic plate 5,6 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 2,3 is formed, metal
Electric capacity, metallic plate 4,6 that electric capacity that electric capacity that plate 2,4 is formed, metallic plate 2,5 are formed, metallic plate 3,6 are formed are formed
Electric capacity and the electric capacity that formed of metallic plate 5,6 be respectively as follows:
Due to metallic plate 2 and metallic plate 6 electrical grounding, the then electric capacity that metallic plate 2,3 is formed and 3,6 shapes of metallic plate
The electric capacity become is parallel relationship, and the electric capacity that the electric capacity that metallic plate 2,4 is formed and metallic plate 4,6 are formed is parallel relationship, gold
The electric capacity that the electric capacity that genus plate 2,5 is formed and metallic plate 5,6 are formed is parallel relationship, can obtain above formula combination summation:
Above formula is carried out make poor, sue for peace 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. the nested pole plate inclination angle measurement method of concentric coplanar ring-trisection ring-circle, it is characterised in that: described method step
As follows:
(1), by coplanar to a central circular metallic plate, transition circle annular metal sheet and outer circle annular metal sheet concentric placement,
And transition circle annular metal sheet radially trisection, obtain three part of 1/3rd circular ring metal plate, described every a three/
One circular ring metal plate forms electric capacity respectively with central circular metallic plate, and described every a 1/3rd circular ring metal plates are respectively
Electric capacity, described central circular metallic plate and outer circle annular metal sheet electrical grounding, institute is formed with outer circle annular metal sheet
State a central circular metallic plate, three part of 1/3rd circular ring metal plate obtains annular altogether with the combination of outer circle annular metal sheet
Face electric capacity 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, capacitor's capacity that every a 1/3rd circular ring metal plates are formed with central circular metallic plate and every
The capacitor's capacity that a 1/3rd circular ring metal plates and outer circle annular metal sheet are formed is by the dielectric constant of air, insulation
Property the exposed part in atmosphere of the dielectric constant of liquid, respective pole plate to segment angle and be immersed in part in insulating liquid
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 three/
One circular ring metal plate and the capacitor's capacity of central circular metallic plate formation and above-mentioned 1/3rd circular ring metal plates are with outer
The change of the capacitor's capacity that portion's circular ring metal plate is formed, tries to achieve inclination value.
2. the nested pole plate dip measuring device of concentric coplanar ring-trisection ring-circle, including capacitance measurement unit (16) with incline
Angle computing unit (17), described capacitance measurement unit (16) is connected with Dip countion unit (17)；It is characterized in that: described device
Also include that sensor unit (15), the structure of described sensor unit (15) are: the most opening-like cylindrical container (8)
Opening seal the circular insulated substrate of assembling (7), be positioned at the inboard face of round insulation substrate (7) at cylindrical container (8) intracavity
Upper equipped annular coplanar capacitance gauge head (1)；Described annular coplanar capacitance gauge head (1) by a circular metal plate (2), three three points
One of circular ring metal plate (3,4,5) and circular ring metal plate (6) constitute, wherein three 1/3rd circular ring metal plates
(3,4,5) are arranged in circular metal plate (2) outside, circular ring metal plate (6) inboard, and three 1/3rd annulus
Shape metallic plate (3,4,5) and a circular metal plate (2), a circular ring metal plate (6) are coplanar concentric, three 1/3rd circles
Annular metal sheet (3,4,5) is uniformly distributed circumferentially；Five current potentials lead-in wire (10,11,12,13,14) are the most respectively by circle gold
Belong to plate (2), three 1/3rd circular ring metal plates (3,4,5), a circular ring metal plate (6) and capacitance measurement unit (16)
Input connect；Described cylindrical container (8), in horizontal, seal injection in described cylindrical container (8) and accounts for cylinder appearance
The insulating liquid (9) of device (8) volume 1/2nd.
The nested pole plate dip measuring device of concentric coplanar ring-trisection ring the most according to claim 2-circle, its feature exists
In: described round insulation substrate (7) is made up of resin glass fiber material.
The nested pole plate dip measuring device of concentric coplanar ring-trisection ring the most according to claim 2-circle, its feature exists
In: described insulating liquid (9) is by methanol, ethanol, the alcohols of isopropanol, acetone, the ketone of butanone, diglycol monotertiary butyl
One or more in ethers three class I liquid I of ether become the liquid of subassembly.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410179299.1A CN104034313B (en) | 2014-04-28 | 2014-04-28 | The nested pole plate inclination angle measurement method of concentric coplanar ring-trisection ring-circle and device |
| PCT/CN2015/075460 WO2015165316A1 (en) | 2014-04-28 | 2015-03-31 | Method and device for measuring dip angle of oppositely crossly placed paired quartered ring-quartered circle nested polar plates |
| US15/307,300 US10145683B2 (en) | 2014-04-28 | 2015-03-31 | Method and device for measuring dip angle of oppositely crossly placed paired quartered ring-quartered circle nested polar plates |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410179299.1A CN104034313B (en) | 2014-04-28 | 2014-04-28 | The nested pole plate inclination angle measurement method of concentric coplanar ring-trisection ring-circle and device |
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| Publication Number | Publication Date |
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| CN104034313A CN104034313A (en) | 2014-09-10 |
| CN104034313B true CN104034313B (en) | 2016-08-24 |
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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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4866850A (en) * | 1987-01-23 | 1989-09-19 | Kelly Vincent M | Clinometer with rolling liquid conductor |
| EP0464145B1 (en) * | 1989-03-21 | 1996-07-17 | Zircon International, Inc. | Electronic capacitive level with automatic electrode selection |
| CN102818560A (en) * | 2012-08-29 | 2012-12-12 | 王业路 | Trisection circular level |
| CN203298764U (en) * | 2013-06-04 | 2013-11-20 | 南京航空航天大学 | Tilt angle sensor |
| US20140082954A1 (en) * | 2012-09-27 | 2014-03-27 | Sagatek Co., Ltd. | Multilayered Liquid Capacitive Micro Inclinometer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3978097B2 (en) * | 2002-08-08 | 2007-09-19 | 株式会社東海理化電機製作所 | Tilt detector |
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2014
- 2014-04-28 CN CN201410179299.1A patent/CN104034313B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4866850A (en) * | 1987-01-23 | 1989-09-19 | Kelly Vincent M | Clinometer with rolling liquid conductor |
| EP0464145B1 (en) * | 1989-03-21 | 1996-07-17 | Zircon International, Inc. | Electronic capacitive level with automatic electrode selection |
| CN102818560A (en) * | 2012-08-29 | 2012-12-12 | 王业路 | Trisection circular level |
| US20140082954A1 (en) * | 2012-09-27 | 2014-03-27 | Sagatek Co., Ltd. | Multilayered Liquid Capacitive Micro Inclinometer |
| CN203298764U (en) * | 2013-06-04 | 2013-11-20 | 南京航空航天大学 | Tilt angle sensor |
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