CN110207662B - Levelness measuring device and method for high-potential component of electrical equipment - Google Patents
Levelness measuring device and method for high-potential component of electrical equipment Download PDFInfo
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- CN110207662B CN110207662B CN201910534481.7A CN201910534481A CN110207662B CN 110207662 B CN110207662 B CN 110207662B CN 201910534481 A CN201910534481 A CN 201910534481A CN 110207662 B CN110207662 B CN 110207662B
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000013307 optical fiber Substances 0.000 claims abstract description 33
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- 239000011810 insulating material Substances 0.000 claims description 3
- 229910052755 nonmetal Inorganic materials 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 8
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 3
- 239000011550 stock solution Substances 0.000 description 3
- 230000005684 electric field Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
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- 238000001514 detection method Methods 0.000 description 1
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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
- G01C9/02—Details
- G01C9/06—Electric or photoelectric indication or reading means
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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
- G01C9/02—Details
- G01C9/06—Electric or photoelectric indication or reading means
- G01C2009/066—Electric or photoelectric indication or reading means optical
Abstract
The invention relates to a levelness measuring device and method for a high-potential component of electrical equipment, wherein the device comprises a levelness-photochromic sensor and a photochromic-levelness converter; the levelness-photochromic sensor comprises a liquid storage cavity, an adjusting seat, a floating ball, a beam splitter prism, a collimating lens and a convex lens; the method comprises the following steps: fixing the levelness-photochromic sensor on the electrical equipment needing to detect levelness, and connecting the levelness-photochromic sensor with the photochromic-levelness converter through optical fibers; the upper end and the lower end of the levelness-light color sensor can output three-color light mixed in different proportions according to different levelness, the three-color light is transmitted by the optical fiber and then received by the light color-levelness converter, and finally the levelness of the electrical equipment is judged according to the balance degree of the three-color light. The invention realizes the real-time monitoring function of the levelness of the high-potential component of the electrical equipment, has the characteristics of interference resistance and live-line measurement, and effectively improves the accuracy and the real-time performance of the levelness measurement of the high-potential component.
Description
Technical Field
The invention belongs to the technical field of operation detection of electrical equipment, and particularly relates to a levelness measuring device and method for a high-potential component of the electrical equipment.
Background
In the operation process of the electrical equipment, under the action of factors such as magnetostrictive vibration, dynamic and thermal stability force, lead tension, self gravity and the like, bending and displacement can be generated, so that the levelness of the equipment is changed. The levelness of the high-potential part of the electrical equipment can reflect the conditions of equipment inclined settlement, stress deformation and the like, but because the electric field intensity around the high-potential part is high and the electromagnetic interference signal is strong, many electronic devices cannot work normally, especially the electrical equipment with a higher installation position, and therefore the levelness of the high-potential part is difficult to measure.
At present, the levelness measurement of a high-potential component of electrical equipment is mainly carried out on a zero-potential component which is rigidly connected with the high-potential component or estimated by visual observation, so that the levelness of the high-potential component is reflected indirectly, a large error exists, and the requirement of automatic measurement of the equipment is not met.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a levelness measuring device and a levelness measuring method for a high-potential component of electrical equipment.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
a levelness measuring device for a high-potential component of electrical equipment comprises a levelness-photochromic sensor and a photochromic-levelness converter; the levelness-photochromic sensor comprises a liquid storage cavity, an adjusting seat, a floating ball, a beam splitter prism, a collimating lens and a convex lens; the liquid storage cavity is arranged on the adjusting seat and is formed by communicating three branches and a central cavity, and the interior of the liquid storage cavity is filled with transparent liquid; the three branches provide incident light paths for light rays, and the tail ends of the three branches are provided with collimating lenses and provide incident light of three colors; the floating ball is a shading ball body and floats above the liquid level of the liquid storage cavity; the beam splitter prism is fixed below the central cavity, and the collimating lens comprises an upper collimating lens arranged at the upper optical fiber end and a lower collimating lens arranged at the lower optical fiber end of the beam splitter prism; the convex lens comprises an upper convex lens arranged between the upper collimating lens and the floating ball and a lower convex lens arranged above the lower collimating lens; incident light is vertically reflected upwards by the outer surface of the pyramid of the beam splitter prism, condensed by the upper convex lens and then enters the upper collimating lens, and refracted light entering the beam splitter prism is totally reflected on the inner surface of the beam splitter prism, condensed by the lower convex lens and then enters the lower collimating lens; the photochromic-horizontal converter is connected with the upper collimating lens and the lower collimating lens through optical fibers and is used for measuring and processing signals transmitted by the horizontal degree-photochromic sensor.
Further, an included angle a between the side surface of the beam splitter prism and the central axis should satisfy the following condition:
in the above formula, n1、n2The refractive indices of the liquid and the splitting prism, respectively.
Further, the liquid storage cavity, the adjusting seat, the floating ball, the beam splitter prism, the collimating lens and the convex lens are all made of non-metal insulating materials.
Further, the beam splitter prism is a transparent hexagonal pyramid.
Furthermore, the floating ball is a black opaque floating ball.
Further, the colors of the incident light are red, green, and blue.
A measuring method of a levelness measuring device, such as for a high-potential component of an electrical apparatus, comprising the steps of:
step 1, fixing a levelness-photochromic sensor on electrical equipment needing to detect levelness, adjusting the initial state of the device to a horizontal position through an adjusting seat, and connecting the levelness-photochromic sensor with a photochromic-levelness converter through optical fibers;
if the three colors of the synthetic light returned from the upper end of the levelness-light color sensor are balanced and the light intensity is far less than that of the lower part, the equipment is in a horizontal position;
if the light intensity of the synthetic light returned from the lower end of the levelness-light color sensor is not balanced, and the light intensity balance degree of the optical fibers at the lower end is not changed, the equipment slightly inclines;
and thirdly, if the light intensity of the synthesized light returned by the optical fibers at the upper end and the lower end of the levelness-light color sensor is not balanced and has the same obvious color cast, the equipment is seriously inclined.
Furthermore, the photochromic-levelness converter automatically calculates and displays the inclination angle direction.
Further, the photochromic-horizontal converter automatically calculates and displays the inclination angle direction and sends out an alarm signal.
The invention has the advantages and positive effects that:
the levelness monitoring device is reasonable in design, the levelness of the high-potential component is represented by the optical signal, the problem that a traditional measuring device cannot carry out levelness measurement and transmission in the strong electromagnetic field interference environment is solved, the levelness monitoring device is suitable for the high-field-intensity environment, the insulation of electrical equipment is not influenced, the sensitivity is high, the real-time monitoring function of the levelness of the high-potential component of the electrical equipment can be realized, the characteristics of interference resistance and live measurement are realized, and the accuracy and the real-time performance of the levelness measurement of the high-potential component are effectively improved.
Drawings
FIG. 1 is a schematic diagram of a measuring device of the present invention;
FIG. 2 is a flow chart of a testing method of the present invention;
in the figure, 1-optical fiber, 2-collimating lens, 3-floating ball, 4-reflected light, 5-convex lens, 6-liquid storage cavity, 7-incident light path, 8-refracted light, 9-beam splitter prism and 10-adjusting seat.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The design idea of the invention is; the invention converts the levelness in different directions in a high potential environment into optical signals with different chromatic aberration, performs chromatic light synthesis, uses mixed light to represent the levelness, transmits the levelness to a low potential end through an optical fiber, and reduces the mixed light into the levelness in different directions through a photochromic-levelness converter to realize the measurement of the levelness. The measuring device for realizing the method is mainly formed by connecting a levelness-light color sensor and a light color-levelness converter. The optical fiber, the lens, the floating ball and the like which form the levelness-photochromic sensor are all made of non-metallic insulating materials, the interference of an electric field and a magnetic field in a high-potential environment cannot influence the levelness-photochromic sensor, and the sensor is small in size, only equivalent to a bubble type level and convenient to install on a high-potential part of electrical equipment. The light color-levelness converter processes the light signal transmitted from the high potential end to the zero potential end via the high insulating fiber and restores the mixed light to levelness via color light analysis and levelness calculation.
Based on the design idea, the levelness measuring device for the high-potential part of the electrical equipment comprises a levelness-photochromic sensor and a photochromic-levelness converter. As shown in fig. 1, the levelness-photochromic sensor includes a liquid storage cavity 6, an adjusting seat 10, a floating ball 3, a beam splitter prism 9, a collimating lens 2 and a convex lens 5; the collimating lens comprises a lower collimating lens and an upper collimating lens which are respectively connected with the light color-levelness converter through an optical fiber 1. The specific installation relationship of the levelness-photochromic sensor is as follows:
two collimating lenses (a lower collimating lens and an upper collimating lens) of the levelness measuring device respectively transmit downward three-color light and upward three-color light which is not shielded by the floating ball to the remote light color-levelness converter, and when the lower optical fiber transmits back white synthesized light, the device is in a normal working state. The conversion module firstly adjusts the incident light intensity according to the measured value of the three-color light below the collimating lens to make the three-color light of red, green and blue transmitted back by the lower optical fiber have equal intensity (I)R＝IG＝IB) Is marked as Ix(ii) a And then outputting the offset direction and angle according to the levelness of the light intensity analysis equipment of each color.
The levelness measuring method of the invention is shown in figure 2: if the three color lights (red, green, blue) returned from the upper optical fiber are respectively marked as iR、iG、iB) Satisfy iR≈iG≈iB<<I0The levelness measuring device is in a horizontal state; if iR、iG、iBAre not all equal and are all less than I0Indicating that the levelness measuring device is slightly inclined, the levelness measuring device can be according to iR、iG、iBComprehensively calculating the offset angle and direction; if it isThe light intensity of two colors in the three color lights returned by the upper and lower optical fibers is I0Another color of light (with I)x、ixRepresents) is significantly less than I0Indicating that the levelness measuring device is seriously inclined, the levelness measuring device can be according to ix、IxAnd calculating the angle and direction of the deviation and sending out an alarm signal. The method specifically comprises the following steps:
step 1, fixing the levelness-photochromic sensor on the electrical equipment needing to detect levelness, adjusting the initial state of the device to be a horizontal position through an adjusting seat, and connecting the levelness-photochromic sensor with a photochromic-levelness converter through optical fibers.
After the optical fiber connects the levelness-photochromic sensor with the photochromic-levelness converter, the sensor needs to be calibrated: and starting the light color-levelness converter to check whether the synthesized light is returned. If the optical fiber makes the light intensities of three colors of light in the synthesized light returned by the optical fiber at the lower part of the levelness-light color sensor the same, the levelness-light color sensor and the light color-levelness converter are indicated to work normally, otherwise, the device is calibrated by starting the light color-levelness converter.
if the three colors of the synthetic light returned from the upper end of the levelness-light color sensor are balanced and the light intensity is far less than that of the lower part, the equipment is in a horizontal position;
if the light intensity of the synthetic light returned from the lower end of the levelness-light color sensor is not balanced and the light intensity balance degree of the optical fibers at the lower end is not changed, the equipment slightly tilts, and the light color-levelness converter automatically calculates and displays the direction of the tilting angle;
if the light intensity of the synthetic light returned by the optical fibers at the upper end and the lower end of the levelness-light color sensor is not balanced and has the same obvious color cast, the equipment is seriously inclined, the light color-levelness converter automatically calculates and displays the inclination angle direction, and meanwhile, an alarm signal is sent.
Nothing in this specification is said to apply to the prior art.
It should be emphasized that the embodiments described herein are illustrative rather than restrictive, and thus the present invention is not limited to the embodiments described in the detailed description, but also includes other embodiments that can be derived from the technical solutions of the present invention by those skilled in the art.
Claims (8)
1. A levelness measuring device for a high-potential component of electrical equipment, characterized in that: comprises a levelness-light color sensor and a light color-levelness converter; the levelness-photochromic sensor comprises a liquid storage cavity, an adjusting seat, a floating ball, a beam splitter prism, a collimating lens and a convex lens; the liquid storage cavity is arranged on the adjusting seat and is formed by communicating three branches and a central cavity, and the interior of the liquid storage cavity is filled with transparent liquid; the three branches provide incident light paths for light rays, and the tail ends of the three branches are provided with collimating lenses and provide incident light of three colors; the floating ball is a shading ball body and floats above the liquid level of the liquid storage cavity; the beam splitter prism is fixed below the central cavity, and the collimating lens comprises an upper collimating lens arranged at the upper optical fiber end and a lower collimating lens arranged at the lower optical fiber end of the beam splitter prism; the convex lens comprises an upper convex lens arranged between the upper collimating lens and the floating ball and a lower convex lens arranged above the lower collimating lens; incident light is vertically reflected upwards by the outer surface of the pyramid of the beam splitter prism, condensed by the upper convex lens and then enters the upper collimating lens, and refracted light entering the beam splitter prism is totally reflected on the inner surface of the beam splitter prism, condensed by the lower convex lens and then enters the lower collimating lens; the photochromic-horizontal converter is connected with the upper collimating lens and the lower collimating lens through optical fibers and is used for measuring and processing signals transmitted by the horizontal degree-photochromic sensor;
the liquid storage cavity, the adjusting seat, the floating ball, the beam splitter prism, the collimating lens and the convex lens are all made of non-metal insulating materials.
2. A levelness measuring device for a high potential part of an electric apparatus according to claim 1, characterized in that: the included angle A between the side surface of the beam splitter prism and the central axis meets the following conditions:
in the above formula, n1、n2The refractive indices of the liquid and the splitting prism, respectively.
3. A levelness measuring device for a high potential part of an electric apparatus according to any one of claims 1 to 2, characterized in that: the beam splitting prism is a transparent hexagonal pyramid.
4. A levelness measuring device for a high potential part of an electric apparatus according to any one of claims 1 to 2, characterized in that: the floating ball is a black opaque floating ball.
5. A levelness measuring device for a high potential part of an electric apparatus according to any one of claims 1 to 2, characterized in that: the colors of the incident light are red, green and blue.
6. A measuring method of a levelness measuring device for a high potential part of an electric apparatus according to any one of claims 1 to 5, characterized by comprising the steps of:
step 1, fixing a levelness-photochromic sensor on electrical equipment needing to detect levelness, adjusting the initial state of the device to a horizontal position through an adjusting seat, and connecting the levelness-photochromic sensor with a photochromic-levelness converter through optical fibers;
step 2, the upper end and the lower end of the levelness-light color sensor can output three color lights mixed in different proportions according to different levelness, the three color lights are transmitted by the optical fiber and then received by the light color-levelness converter, and finally the levelness of the equipment is monitored according to the following steps:
if the three colors of the synthetic light returned from the upper end of the levelness-light color sensor are balanced and the light intensity is far less than that of the lower part, the equipment is in a horizontal position;
if the light intensity of the synthetic light returned from the lower end of the levelness-light color sensor is not balanced, and the light intensity balance degree of the optical fibers at the lower end is not changed, the equipment slightly inclines;
and thirdly, if the light intensity of the synthesized light returned by the optical fibers at the upper end and the lower end of the levelness-light color sensor is not balanced and has the same obvious color cast, the equipment is seriously inclined.
7. The measuring method of the levelness measuring device for the high-potential part of the electrical apparatus according to claim 6, wherein: and the photochromic-levelness converter also automatically calculates and displays the inclination angle direction.
8. The measuring method of the levelness measuring device for the high-potential part of the electrical apparatus according to claim 6, wherein: and the photochromic-horizontal converter also automatically calculates and displays the inclination angle direction and sends out an alarm signal.
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| CN201910534481.7A CN110207662B (en) | 2019-06-20 | 2019-06-20 | Levelness measuring device and method for high-potential component of electrical equipment |
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| CN201910534481.7A CN110207662B (en) | 2019-06-20 | 2019-06-20 | Levelness measuring device and method for high-potential component of electrical equipment |
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| CN110207662B true CN110207662B (en) | 2021-08-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1983003135A1 (en) * | 1982-03-04 | 1983-09-15 | Jackson, David, Alfred | Fluid level sensing apparatus |
| DE19610941C2 (en) * | 1996-03-20 | 1998-10-15 | Zeiss Carl Jena Gmbh | Biaxial inclinometer and method for inclination measurement |
| CN1153045C (en) * | 2001-01-20 | 2004-06-09 | 郑建平 | Inclined reflection-type automatic liquid levelling system |
| CN1948903A (en) * | 2006-11-10 | 2007-04-18 | 苏州大学 | 2D levelness measuring method and apparatus thereof |
| WO2014163245A1 (en) * | 2013-04-05 | 2014-10-09 | (주) 유원컴텍 | Three-dimensional motion sensor having via hole |
| CN208887626U (en) * | 2018-08-19 | 2019-05-21 | 天津大学 | A kind of reflective twin shaft optical-electrical level-meter of liquid surface |
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