CN117146713A - Laser displacement sensor - Google Patents
Laser displacement sensor Download PDFInfo
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- CN117146713A CN117146713A CN202311241785.7A CN202311241785A CN117146713A CN 117146713 A CN117146713 A CN 117146713A CN 202311241785 A CN202311241785 A CN 202311241785A CN 117146713 A CN117146713 A CN 117146713A
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- reflecting
- displacement sensor
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 32
- 238000003780 insertion Methods 0.000 claims description 12
- 230000037431 insertion Effects 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 5
- 239000003302 ferromagnetic material Substances 0.000 claims description 3
- 230000008859 change Effects 0.000 description 11
- 238000005259 measurement Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000002955 isolation Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000002596 correlated effect Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a laser displacement sensor, wherein a body comprises an emission port and an entrance port, a laser emission source is fixedly connected to the body, and the light emitting direction of the laser emission source is opposite to the emission port and parallel to the direction of the emission port; the crank arm is fixedly connected to the body, the crank arm is positioned at the lower part of the emission port, the crank arm does not shade the emission port, and the length direction of the crank arm is perpendicular to the light emitting direction of the laser emission source; the first reflecting mirror is fixedly connected to the crank arm, is positioned right below the emission port, and forms an included angle of 45 degrees with the light emitted by the laser emission source; the second reflecting mirror is detachably connected to the crank arm, the position of the second reflecting mirror is located on the path of the reflecting light path of the first reflecting mirror, and the reflecting surface of the second reflecting mirror forms an included angle of 45 degrees with the reflecting light of the first reflecting mirror; the CCD receiver is arranged on the body, faces towards the entrance port and is electrically connected with the controller. The contradiction that the measuring range and the precision can not be improved at the same time is solved.
Description
Technical Field
The invention relates to a laser displacement sensor, and belongs to the technical field of laser displacement sensors.
Background
In a power grid, if the just-divided speed and the just-closed speed of the high-voltage circuit breaker cannot meet related requirements, the high-voltage switch can possibly fail, the just-divided speed is too slow, arc extinction is not timely, the switch can be disintegrated and exploded, the just-divided speed is too fast, and mechanical failure is easy to cause. The contact is easy to damage due to the excessively high closing speed, and the contact is seriously burnt due to the excessively low closing speed. The speed measurement is very important for the high-voltage circuit breaker, but the prior art mainly comprises sensors which are installed in a contact mode, such as a linear resistance speed measurement sensor, a rotary resistance sensor, a rotary coding sensor and the like, and the sensors are installed in a contact mode, so that the high-voltage circuit breaker body is easy to collide with, and safety accidents are easy to cause. Moreover, many times such sensors cannot be mounted to the switch body, resulting in an inability to measure speed. The non-contact laser sensor has great advantages in the aspect, has high speed measurement precision, is not arranged on the breaker body, and has good safety value.
The laser sensor is used for measuring the speed of the high-voltage circuit breaker, technical improvement is needed, the laser sensor cannot be directly applied to the circuit breaker body, the high-voltage circuit breaker is high in speed and large in movement range, the needed laser sensor is high in precision, the requirement can be met only by high sampling frequency, and if the laser sensor is accurate in measurement by high precision, the measurement range of the laser sensor is very short. The invention designs an auxiliary device based on the original high-precision laser sensor to solve the contradiction, which enlarges the range of the laser sensor, meets the requirement of the field test of the high-voltage circuit breaker, and ensures that the precision in the test process is not greatly changed while the range is enlarged.
Disclosure of Invention
The invention aims to solve the technical problems that: a laser displacement sensor is provided to overcome the deficiencies of the prior art.
The technical scheme of the invention is as follows: a laser displacement sensor comprises a controller, a body, a laser emission source, a CCD receiver, a first transparent reflector, a second reflector and a crank arm;
the body comprises an emission port and an entrance port, the laser emission source is fixedly connected to the body, and the light emitting direction of the laser emission source is opposite to the emission port and parallel to the direction of the emission port;
the crank arm is fixedly connected to the body, the crank arm is positioned at the lower part of the emission port, the crank arm does not shade the emission port, and the length direction of the crank arm is perpendicular to the light emitting direction of the laser emission source;
the first reflecting mirror is fixedly connected to the crank arm, is positioned right below the emission port, and forms an included angle of 45 degrees with the light emitted by the laser emission source;
the second reflecting mirror is detachably connected to the crank arm, the position of the second reflecting mirror is located on the path of the reflecting light path of the first reflecting mirror, and the reflecting surface of the second reflecting mirror forms an included angle of 45 degrees with the reflecting light of the first reflecting mirror;
the CCD receiver is arranged on the body, faces towards the entrance port and is electrically connected with the controller.
Further, a plurality of jacks are arranged on the crank arm along the length direction of the crank arm, inserting rods matched with the jacks are arranged on the side parts of the second reflecting mirrors, and the second reflecting mirrors are matched with the jacks through the inserting rods to be detached and connected to the crank arm.
Further, a positioning hole is formed in the inner wall of the jack, and a protrusion matched with the positioning hole is arranged on the inserted link.
Further, the first reflecting mirror is an isosceles right prism.
Further, the inserted link of the second reflector is made of permanent magnetic material, and the crank arm is made of ferromagnetic material.
Further, the crank arm is L-shaped, and a short arm of the crank arm is detachably connected with the body.
Further, the rear side of the body is provided with a groove matched with a short arm of the crank arm, and the short arm is fixedly connected with the crank arm on the body through matching with the groove.
Further, the bottom surface of the groove is embedded with a second permanent magnet, and the second permanent magnet is flush with the bottom surface of the groove.
The beneficial effects of the invention are as follows: in contrast to the prior art, the method has the advantages that,
1) The laser emitted by the laser emission source is subjected to right-angle conversion through the first reflecting mirror, the laser is subjected to direct conversion again through the second reflecting mirror with a certain distance, the laser after the two direct conversions is parallel to the original laser emitting direction, the measuring range is increased under the same CCD receiver width, and the contradiction that the measuring range and the precision cannot be improved at the same time is solved;
2) According to the invention, the accurate control of the measuring range is realized by changing the distance between the second reflecting mirror and the first reflecting mirror.
Drawings
FIG. 1 is a block diagram of a circuit connection of the present invention;
FIG. 2 is a schematic diagram of the measuring range of the laser displacement sensor of the present invention;
FIG. 3 is a front view of a laser displacement sensor of the present invention;
FIG. 4 is a perspective view of a laser displacement sensor of the present invention;
FIG. 5 is a block diagram of a laser displacement sensor of the present invention;
FIG. 6 is a partial view at A in FIG. 5;
FIG. 7 is a flow chart of the present invention;
FIG. 8 is an exploded view of a laser displacement sensor of the present invention;
fig. 9 is a partial view at B in fig. 8.
Detailed Description
Example 1: referring to fig. 1 to 6 and 8 to 9, a laser displacement sensor includes a controller 1, a body 18, a laser emission source 21, a CCD receiver 20, a first transflector 17, a second reflector 16, and a crank 19; the body 18 comprises an emission port and an entrance port, the laser emission source 21 is fixedly connected to the body 18, and the light emitting direction of the laser emission source 21 is opposite to the emission port and parallel to the direction of the emission port; the crank arm 19 is fixedly connected to the body 18, the crank arm 19 is positioned at the lower part of the emission port, the crank arm 19 does not shield the emission port, and the length direction of the crank arm 19 is perpendicular to the light emitting direction of the laser emission source 21; the first reflecting mirror 17 is fixedly connected to the crank arm 19, the first reflecting mirror 17 is positioned right below the emission port, and the reflecting surface of the first reflecting mirror 17 forms an included angle of 45 degrees with the light emitted by the laser emission source 21; the second reflecting mirror 16 is detachably connected to the crank arm 19, the position of the second reflecting mirror 16 is located on the path of the reflecting light path of the first reflecting mirror 17, and the reflecting surface of the second reflecting mirror 16 forms an included angle of 45 degrees with the reflecting light of the first reflecting mirror 17; the CCD receiver 20 is arranged on the body 18, the CCD receiver 20 faces towards the entrance, and the CCD receiver 20 is electrically connected with the controller 1.
As shown in fig. 2, the gray area is a laser speed sensor, the laser emitted by the laser emission source 21 is converted by the first mirror into a right angle, and then is directly converted again by the second mirror with a certain distance, and the laser after the two direct conversions is parallel to the original laser emitting direction, so that the original perpendicular emitting laser is set to have a measuring range of L0, that is AB, and is reflected back to the middle point of the laser CCD receiver 20CD to be N, and then the measuring range of the new laser beam after the two refraction is changed to L1, that is, a ' B ', and an included angle δ is formed when the middle point M ' is reflected to the CCD receiver 20. This method can increase the range and is easy to calculate, and the range is increased by a fixed coefficient. The coefficient change is correlated with epsilon, and if epsilon is designed to be a precisely controlled distance, the coefficient change and the range change become precisely controllable quantities, i.e. the device can realize the function of adjustable range change in a certain range.
According to the principle design, the triangular refractor is selected to be 12mm by 18mm, the first reflector 17 is required to ensure the total transmittance of 605nm laser, a transmission material is required to be coated on the triangular refractor, after the laser enters the triangular refractor, the total reflection is required to change the refraction by 90 degrees, and the first reflector 17 is a triangular refractor. When the design is carried out, the edge of the exit opening of the trifocal refractor is vertical to the laser beam and is tightly attached to the window of the original laser transmitter. And the scattering condition of light is avoided. And the second triangular refracting mirror, wherein one mirror surface is required to be ensured to be perpendicular to the laser in the changing direction, the mirror surface is required to be coated with a transmission material, and the mirror surface of the emergent window is required to ensure that the emergent laser is consistent with the original laser direction. The two triangular refractors are adjusted for a plurality of times in the manufacturing process and are well adjusted.
Further, a plurality of insertion holes 19-1 are formed in the crank arm 19 along the length direction of the crank arm 19, inserting rods 16-1 matched with the insertion holes 19-1 are arranged on the side portions of the second reflecting mirrors 16, and the second reflecting mirrors 16 are matched with the insertion holes 19-1 through the inserting rods 16-1 to be detached and connected to the crank arm 19. When it is necessary to change the range of the laser displacement sensor 11, the distance of the second mirror 16 from the first mirror 17 can be adjusted to be a little farther and a little closer.
Further, a positioning hole 19-2 is formed in the inner wall of the insertion hole 19-1, and a protrusion 16-1-1 matched with the positioning hole 19-1-2 is arranged on the insertion rod 16-1. The second mirror 16 is fixed in position against the emitted deflection by the positioning hole 19-1-2 cooperating with the projection 16-1-1.
Further, the first reflecting mirror 17 is an isosceles right prism.
Further, the insert rod 16-1 of the second reflecting mirror 16 is made of a permanent magnetic material, and the crank arm 19 is made of a ferromagnetic material.
Further, the crank arm is L-shaped, and a short arm 19-2 of the crank arm 19 is detachably connected with the body 18. The first reflecting mirror and the second reflecting mirror are easy to damage, so that the device is convenient to overhaul and replace.
Further, a groove 18-3 matched with the short arm 19-2 of the crank arm 19 is formed on the rear side surface of the body 18, and the short arm 19-2 fixedly connects the crank arm 19 to the body 18 by matching with the groove 18-3.
Further, the bottom surface of the groove 18-3 is embedded with the second permanent magnet 18-1, and the second permanent magnet 18-1 is flush with the bottom surface of the groove 18-3. The crank arm is convenient to detach and replace.
Example 1: referring to fig. 1-6, a laser speed measuring device of a high-voltage circuit breaker comprises a controller 1, an electronic adjustable power supply 15, a first hall sensor 7, a second hall sensor 8, a laser driving module 10 and a laser displacement sensor 11; the electronic adjustable power supply 15 is electrically connected with the controller 1, and the electronic adjustable power supply 15 is electrically connected with the upper end and the lower end of the arc extinguishing chamber; the relay 6 is electrically connected with the controller 1, the electronic adjustable power supply 15 is electrically connected with the breaker energy storage module through the relay 6, and the electronic adjustable power supply 15 provides voltage for the main loop; the first Hall sensor 7 is arranged at a connecting line between the electronic adjustable power supply 15 and the arc extinguishing chamber, the first Hall sensor 7 is electrically connected with the controller 1, and the first Hall sensor 7 is used for measuring the current of a main loop after the high-voltage circuit breaker is switched on; the second Hall sensor 8 is electrically connected with the controller 1, the second Hall sensor 8 is arranged at the opening and closing coil, and the second Hall sensor 8 is used for measuring the opening and closing coil current; the laser driving module 10 is electrically connected with the controller 1, and the laser displacement sensor 11 is electrically connected with the laser driving module 10. The controller 1 is connected with the upper computer 13 through an RS232 interface so as to analyze the acquired data.
Further, an electronic isolation module 2 is included, and the electronic isolation module 2 is disposed between the relay 6 and the controller 1.
Further, a first photo-isolation module 3 is further included, and the first photo-isolation module 3 is disposed between the first hall sensor 7 and the controller 1.
Further, the circuit breaker further comprises a second photoelectric isolation module 4 and a third Hall sensor 9, wherein the third Hall sensor 9 is electrically connected with the controller 1 through the second photoelectric isolation module 4, and the third Hall sensor 9 is arranged at an auxiliary contact point of the circuit breaker.
Further, a memory module 14 is included, and the memory module 14 is electrically connected to the controller 1.
Further, the system also comprises an upper computer 13, wherein the upper computer 13 is connected with the controller 1 through an RS232 communication protocol.
Referring to fig. 2, since the width of the CCD receiver 20 is limited, if the CCD receiver 20 is intended to receive the light reflected by the laser displacement sensor 11 after directly irradiating the moving contact, the moving contact is limited to a small movement range AB, but the moving contact movement range is limited, which makes the laser displacement sensor 11 not directly used for measuring the moving contact displacement, and in order to solve the problem, in this embodiment, further, the laser displacement sensor 11 further includes: the laser device comprises a body 18, a laser emission source 21, a CCD receiver 20, a first transparent reflector 17, a second reflector 16 and a crank arm 19; the body 18 comprises an emission port and an entrance port, the laser emission source 21 is fixedly connected to the body 18, and the light emitting direction of the laser emission source 21 is opposite to the emission port and parallel to the direction of the emission port; the crank arm 19 is fixedly connected to the body 18, the crank arm 19 is positioned at the lower part of the emission port, the crank arm 19 does not shield the emission port, and the length direction of the crank arm 19 is perpendicular to the light emitting direction of the laser emission source 21; the first reflecting mirror 17 is fixedly connected to the crank arm 19, the first reflecting mirror 17 is positioned right below the emission port, and the reflecting surface of the first reflecting mirror 17 forms an included angle of 45 degrees with the light emitted by the laser emission source 21; the second reflecting mirror 16 is detachably connected to the crank arm 19, the position of the second reflecting mirror 16 is located on the path of the reflecting light path of the first reflecting mirror 17, and the reflecting surface of the second reflecting mirror 16 forms an included angle of 45 degrees with the reflecting light of the first reflecting mirror 17; the CCD receiver 20 is disposed on the body 18, with the CCD receiver 20 facing the entrance opening.
As shown in fig. 2, the gray area is a laser speed sensor, the laser emitted by the laser emission source 21 is converted into a right angle by a triangle refractor, and then is directly converted again by another triangle refractor with a certain distance, the laser after the two direct conversions is parallel to the original laser emitting direction, then the original perpendicular emitting laser is set to have a measuring range of L0, that is AB, and is reflected back to the middle point of the laser CCD receiver 20CD to be N, then the measuring range of the new laser beam after the two refraction is changed to L1, that is a ' B ', and an included angle δ is formed when the middle point M ' is reflected to the CCD receiver 20. This method can increase the range and is easy to calculate, and the range is increased by a fixed coefficient. The coefficient change is correlated with epsilon, and if epsilon is designed to be a precisely controlled distance, the coefficient change and the range change become precisely controllable quantities, i.e. the device can realize the function of adjustable range change in a certain range.
According to the principle design, the triangular refractor is selected to be 12mm by 18mm, the first reflector 17 is required to ensure the total transmittance of 605nm laser, a transmission material is required to be coated on the triangular refractor, after the laser enters the triangular refractor, the total reflection is required to change the refraction by 90 degrees, and the first reflector 17 is a triangular refractor. When the design is carried out, the edge of the exit opening of the trifocal refractor is vertical to the laser beam and is tightly attached to the window of the original laser transmitter. And the scattering condition of light is avoided. And the second triangular refracting mirror, wherein one mirror surface is required to be ensured to be perpendicular to the laser in the changing direction, the mirror surface is required to be coated with a transmission material, and the mirror surface of the emergent window is required to ensure that the emergent laser is consistent with the original laser direction. The two triangular refractors are adjusted for a plurality of times in the manufacturing process and are well adjusted.
The crank arm 19 and the laser displacement sensor 11 can be fixed by adopting a magnet adsorption mode, specifically, an embedded magnet is designed on the shell of the laser sensor body 18, and a magnet adsorption groove, namely a positioning mounting port, is designed, the crank arm 19 is improved into an L-shaped structure, the head of the L-shaped structure of the crank arm 19 is also provided with a magnet, and the crank arm 19 is clamped on the laser sensor through the positioning mounting port and the positioning groove to realize positioning.
The crank arm 19 is connected with the second reflecting mirror 16 by adopting detachable connection of a check groove, the number of the slots is more than 1, the slots are distributed along the length direction of the crank arm 19, and when the measuring range of the laser displacement sensor 11 needs to be changed, the distance between the second reflecting mirror 16 and the first reflecting mirror 17 can be adjusted to be far or near.
Example 2: referring to fig. 7, a laser speed measuring method of a high voltage circuit breaker includes the steps of:
s01, the controller 1 controls the relay 6 to store energy for an energy storage motor of the high-voltage circuit breaker;
s02, performing opening operation on the high-voltage circuit breaker, and acquiring the power-on time of an opening and closing coil in the opening and closing process and the voltage and current of the opening and closing coil by the controller 1 through the second Hall sensor 8;
s03, measuring the vanishing time of the main loop current by the first Hall sensor 7 when the high-voltage circuit breaker just divides the moving contact into a moving contact and a fixed contact;
s04, the controller 1 calculates the opening and closing time immediately after opening and closing by taking the moment of opening and closing coil power-on as a starting point and the disappearance of main loop current as an end point;
s05, the controller 1 calculates the opening speed of the circuit breaker by taking the just-separated time as the basis through the measurement data of the laser displacement sensor 11;
s06, performing switching-on operation by the high-voltage circuit breaker, and acquiring the power-on time and current voltage of a switching-on/off coil in the switching-off process by a second Hall sensor 8;
s07, the controller 1 detects and records the moment when the current of the main loop suddenly appears through the first Hall sensor 7;
s08, the controller 1 calculates the switching-on just-switching-off time by taking the moment of switching-on and switching-off coil power-on as a starting point and taking the sudden appearance of main loop current as an ending point;
s09, the controller 1 calculates the closing speed of the circuit breaker based on the closing time according to the measurement data of the laser displacement sensor 11.
The present invention is not described in detail in the present application, and is well known to those skilled in the art. Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (8)
1. The laser displacement sensor is characterized by comprising a controller (1), a body (18), a laser emission source (21), a CCD receiver (20), a first transparent reflector (17), a second reflector (16) and a crank arm (19);
the body (18) comprises an emission port and an entrance port, the laser emission source (21) is fixedly connected to the body (18), and the light emitting direction of the laser emission source (21) is opposite to the emission port and parallel to the direction of the emission port;
the crank arm (19) is fixedly connected to the body (18), the crank arm (19) is positioned at the lower part of the emission port, the crank arm (19) does not shield the emission port, and the length direction of the crank arm (19) is perpendicular to the light emitting direction of the laser emission source (21);
the first reflecting mirror (17) is fixedly connected to the crank arm (19), the first reflecting mirror (17) is positioned right below the emission port, and the reflecting surface of the first reflecting mirror (17) forms an included angle of 45 degrees with the light emitted by the laser emission source (21);
the second reflecting mirror (16) is detachably connected to the crank arm (19), the position of the second reflecting mirror (16) is located on the path of the reflecting light path of the first reflecting mirror (17), and an included angle of 45 degrees is formed between the reflecting surface of the second reflecting mirror (16) and the reflecting light of the first reflecting mirror (17);
the CCD receiver (20) is arranged on the body (18), the CCD receiver (20) faces towards the entrance, and the CCD receiver (20) is electrically connected with the controller (1).
2. The laser displacement sensor according to claim 1, wherein a plurality of insertion holes (19-1) are formed in the crank arm (19) along the length direction of the crank arm (19), insertion rods (16-1) matched with the insertion holes (19-1) are arranged on the side portions of the second reflecting mirrors (16), and the second reflecting mirrors (16) are matched with the insertion holes (19-1) through the insertion rods (16-1) to be detached and connected to the crank arm (19).
3. The laser displacement sensor according to claim 2, wherein a positioning hole (19-2) is formed in the inner wall of the insertion hole (19-1), and a protrusion (16-1-1) matched with the positioning hole (19-1-2) is formed on the insertion rod (16-1).
4. The laser displacement sensor according to claim 1, characterized in that the first mirror (17) is an isosceles right prism.
5. The laser displacement sensor according to claim 2, wherein the plunger (16-1) of the second mirror (16) is a permanent magnet material and the lever (19) is a ferromagnetic material.
6. The laser displacement sensor according to claim 1, characterized in that the lever is L-shaped, the short arm (19-2) of the lever (19) being detachably connected to the body (18).
7. The laser displacement sensor according to claim 6, wherein the rear side of the body (18) is provided with a groove (18-3) matching with a short arm (19-2) of the lever (19), and the short arm (19-2) fixedly connects the lever (19) to the body (18) by cooperating with the groove (18-3).
8. The laser displacement sensor according to claim 7, wherein the bottom surface of the recess (18-3) is embedded with a second permanent magnet (18-1), the second permanent magnet (18-1) being flush with the bottom surface of the recess (18-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311241785.7A CN117146713A (en) | 2023-09-25 | 2023-09-25 | Laser displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311241785.7A CN117146713A (en) | 2023-09-25 | 2023-09-25 | Laser displacement sensor |
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| Publication Number | Publication Date |
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| CN117146713A true CN117146713A (en) | 2023-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311241785.7A Pending CN117146713A (en) | 2023-09-25 | 2023-09-25 | Laser displacement sensor |
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| CN (1) | CN117146713A (en) |
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| CN101559629A (en) * | 2009-05-12 | 2009-10-21 | 苏州德龙激光有限公司 | Coaxial image system applied to LED laser cutting device |
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| CN109342758A (en) * | 2018-11-16 | 2019-02-15 | 成都信息工程大学 | Novel velocity sensor |
| JP2020082080A (en) * | 2018-11-14 | 2020-06-04 | 前田工業株式会社 | Displacement measuring device |
| CN113671207A (en) * | 2021-08-12 | 2021-11-19 | 贵州电网有限责任公司 | Laser range extending method and system for testing rigid opening speed and rigid closing speed of high-voltage switch |
| KR102363590B1 (en) * | 2021-06-08 | 2022-02-16 | 주식회사 다담엔지니어링 | Structure Displacement Measurement Devices and Methods with Laser Detection |
| CN216645236U (en) * | 2021-12-10 | 2022-05-31 | 常州高晟传感技术有限公司 | Compact wide-range laser triangular displacement sensor based on double-reflection structure |
| CN115079196A (en) * | 2022-06-06 | 2022-09-20 | 上海钊晟传感技术有限公司 | Long-distance high-precision laser displacement sensor method |
-
2023
- 2023-09-25 CN CN202311241785.7A patent/CN117146713A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101559629A (en) * | 2009-05-12 | 2009-10-21 | 苏州德龙激光有限公司 | Coaxial image system applied to LED laser cutting device |
| CN105444679A (en) * | 2015-11-14 | 2016-03-30 | 上海砺晟光电技术有限公司 | Symmetric laser displacement sensor capable of inhibiting laser drift and surface tilting |
| JP2020082080A (en) * | 2018-11-14 | 2020-06-04 | 前田工業株式会社 | Displacement measuring device |
| CN109342758A (en) * | 2018-11-16 | 2019-02-15 | 成都信息工程大学 | Novel velocity sensor |
| KR102363590B1 (en) * | 2021-06-08 | 2022-02-16 | 주식회사 다담엔지니어링 | Structure Displacement Measurement Devices and Methods with Laser Detection |
| CN113671207A (en) * | 2021-08-12 | 2021-11-19 | 贵州电网有限责任公司 | Laser range extending method and system for testing rigid opening speed and rigid closing speed of high-voltage switch |
| CN216645236U (en) * | 2021-12-10 | 2022-05-31 | 常州高晟传感技术有限公司 | Compact wide-range laser triangular displacement sensor based on double-reflection structure |
| CN115079196A (en) * | 2022-06-06 | 2022-09-20 | 上海钊晟传感技术有限公司 | Long-distance high-precision laser displacement sensor method |
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