CN106596052B - Automatic angle adjusting mechanism for interferometer and angle control method thereof - Google Patents
Automatic angle adjusting mechanism for interferometer and angle control method thereof Download PDFInfo
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- CN106596052B CN106596052B CN201611248171.1A CN201611248171A CN106596052B CN 106596052 B CN106596052 B CN 106596052B CN 201611248171 A CN201611248171 A CN 201611248171A CN 106596052 B CN106596052 B CN 106596052B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B9/00—Measuring instruments characterised by the use of optical techniques
- G01B9/02—Interferometers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B9/00—Measuring instruments characterised by the use of optical techniques
- G01B9/02—Interferometers
- G01B9/02055—Reduction or prevention of errors; Testing; Calibration
- G01B9/0207—Error reduction by correction of the measurement signal based on independently determined error sources, e.g. using a reference interferometer
- G01B9/02072—Error reduction by correction of the measurement signal based on independently determined error sources, e.g. using a reference interferometer by calibration or testing of interferometer
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- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Instruments For Measurement Of Length By Optical Means (AREA)
Abstract
an automatic angle adjusting mechanism for an interferometer and an angle control method thereof comprise a clamp platform, wherein a clamp vertical plate seat fixedly connected to the clamp platform and a clamp vertical plate rotatably connected to the clamp platform are arranged on the clamp platform, an elastic piece used for driving the clamp vertical plate to rotate towards a deflection direction is connected between the clamp vertical plate and the clamp platform, a driving motor used for driving the clamp vertical plate to rotate is further connected onto the clamp platform, an angle sensor used for collecting the rotation angle of the clamp vertical plate, and a control system used for comparing the collected rotation angle with a pre-input deflection angle to form feedback adjustment control over the driving stroke of the driving motor.
Description
Technical Field
The invention relates to an interferometer, in particular to an automatic angle adjusting mechanism for the interferometer and an angle control method thereof.
Background
Interferometry is a method of measuring height data by bright fringes due to optical path differences created by the coherence properties between two beams of coherent light. The light is divided into two beams by the beam splitter prism, and interference fringes are formed by the optical path difference between the light returned by the reflection reference mirror and the sample.
As a device for measuring the geometric parameters of the end face of the optical fiber connector, measuring the APC angle has always been the key point in the test. However, the existing adjusting mode is manual adjustment, the angle is adjusted to the measurement state of APC by displacement tools such as a differential head, and the adjusting mode can cause insufficient measurement stability and is not accurate enough, and the adjustment at each time needs to be corrected, so that the efficiency is low.
disclosure of Invention
The first purpose of the present invention is to provide an automatic angle adjusting mechanism for an interferometer, which has the advantages of automatic angle adjustment, more accurate angle adjustment, and more efficient.
The above object of the present invention is achieved by the following technical solutions:
The utility model provides an automatic angle adjustment mechanism for interferometer, including the anchor clamps platform, be equipped with the anchor clamps riser seat of fixed connection on the anchor clamps platform and rotate the anchor clamps riser of connection on the anchor clamps platform, be connected with between anchor clamps riser and the anchor clamps platform and be used for driving the anchor clamps riser to the antiport's of beat direction elastic component, still be connected with on the anchor clamps platform and be used for driving anchor clamps riser pivoted driving motor, an angle sensor for gathering the turned angle of anchor clamps riser, and the turned angle who will gather compares with the beat angle of preinstalling, form the control system who carries out feedback regulation control to driving motor's drive stroke.
adopt above-mentioned technical scheme, the anchor clamps riser rotates with the anchor clamps platform to be connected and can rotate to the beat direction, and the elastic component makes the anchor clamps riser reset, gathers turned angle by angle sensor and transmits to control system, and control system controls driving motor's drive stroke with the rotation of drive anchor clamps riser according to turned angle and the comparison judged result of beat angle to the mode control driving motor that the feedback was adjusted, replaces the mode of current artificial regulation, possesses automatic angle regulation and more accurate, more efficient advantage.
Further, anchor clamps riser seat includes that the middle part has the vertical plate body of through-hole, the bottom and the anchor clamps platform fixed connection of vertical plate body, and the top of vertical plate body is connected with the horizontal connecting plate, and the anchor clamps riser rotates to be connected between horizontal connecting plate and anchor clamps platform.
By adopting the technical scheme, the fixture vertical plate is connected between the horizontal connecting plate and the fixture platform, so that the connection is more stable, and the rotating process is more stable.
Furthermore, a connecting plate rotating shaft is arranged on the horizontal connecting plate, a platform rotating shaft coaxial with the connecting plate rotating shaft is arranged on the clamp platform, and the clamp vertical plate is connected with the connecting plate rotating shaft and the platform rotating shaft so as to realize rotation.
By adopting the technical scheme, the connecting plate rotating shaft and the platform rotating shaft are in rotating connection with the upper and lower ends of the fixture vertical plate, so that the rotating process is more stable.
Further, the angle sensor is connected with the platform rotating shaft below the clamp platform.
By adopting the technical scheme, the arrangement of the angle sensor below the clamp platform to the volume space is more reasonable, and the rotating angle of the vertical plate of the clamp is transmitted by the rotating shaft of the platform and is collected by the angle sensor.
Furthermore, a containing cavity for the vertical fixture plate to turn over is reserved on one side of the vertical plate body in the deflection direction of the vertical fixture plate.
By adopting the technical scheme, when the vertical fixture plate is turned, the vertical fixture plate naturally enters the accommodating cavity, so that a larger space is not required to be reserved between the vertical fixture plate and the vertical fixture plate seat, and the whole volume of the mechanism can be reduced.
Further, the bottom of the fixture vertical plate is connected with a horizontal shifting plate, and the bottom of the vertical plate body is provided with a hollow-out part for the horizontal shifting plate to pass through and swing.
By adopting the technical scheme, the fixture vertical plate is positioned at the front end of the fixture vertical plate seat, and for facilitating the rotation driving of the fixture vertical plate, the horizontal shifting plate is arranged and penetrates through the hollow part, and the hollow part reserves a swinging space, so that the rear end of the fixture vertical plate seat can be driven.
further, the board connecting hole is worn to be equipped with by the level and is dialled the board, and the platform connecting hole is worn to be equipped with by the anchor clamps platform, dials the board connecting hole and switches on with the platform connecting hole, and the one end of elastic component is connected in dialling the board connecting hole, and the other end is connected in the platform connecting hole.
by adopting the technical scheme, the elastic piece is connected in the shifting plate connecting hole and the platform connecting hole, the space occupation caused by the external elastic piece is reduced, meanwhile, the materials of the horizontal shifting plate and the fixture platform are saved, and the stretching process of the elastic piece in the shifting plate connecting hole and the platform connecting hole is not interfered.
Further, dial the board connecting hole and be equipped with open draw-in groove up, the platform connecting hole is equipped with open draw-in groove down, and equal joint has the spring catch in the draw-in groove, and the elastic component is the drag hook spring, and the both ends of drag hook spring all are equipped with the drag hook, and the drag hook is hooked on the spring catch.
By adopting the technical scheme, when the elastic connection level is used for shifting the plate and the fixture platform, the draw hook at the top of the draw hook spring penetrates through the spring pin, the spring pin is clamped in the clamping groove of the shifting plate connecting hole, the draw hook spring naturally enters the shifting plate connecting hole and the platform connecting hole from top to bottom, the draw hook spring is properly stretched, the other spring pin penetrates through the draw hook at the bottom of the draw hook spring, the spring pin is clamped in the clamping groove, any spring pin is removed in the dismounting process, the draw hook spring can be taken out, and the dismounting process is simple and fast.
furthermore, an oil storage tank for storing lubricating oil is arranged on the plane where the clamp platform is contacted with the horizontal shifting plate.
By adopting the technical scheme, in the rotating process of the vertical fixture plate, the horizontal shifting plate is in surface contact with the upper plane of the fixture platform, so that the friction force is large, after the oil storage tank is arranged, the lubricating oil is lubricated in the rotating process of the horizontal shifting plate, the friction force is reduced, and the rotation is smooth and stable.
furthermore, the oil storage tank is a concave waist-shaped hole, and the long axis direction of the oil storage tank is tangent to the swing track of the horizontal shifting plate.
By adopting the technical scheme, the horizontal shifting plate has a larger lubricating oil coverage area along the swinging direction, and helps to smoothly rotate.
further, the driving motor is a linear reciprocating motor, and the output end of the driving motor is abutted against the side face of the horizontal shifting plate in the swinging direction of the horizontal shifting plate so as to push the driving motor to swing.
By adopting the technical scheme, the linear reciprocating motor drives the process, the output end of the linear reciprocating motor reciprocates in the linear direction, and the horizontal shifting plate is driven to rotate.
Furthermore, the output end of the linear reciprocating motor is provided with a ball at the position where the output end of the linear reciprocating motor is abutted to the horizontal shifting plate.
Adopt above-mentioned technical scheme, because the output of linear reciprocating motor is dialled the board along the reciprocal level of contradicting of straight line and is removed, and the level is dialled the board and is swung, and there is sliding friction between the side of the board is dialled to output and level, replaces the slip with rolling through setting up the ball, reduces frictional force, helps smooth rotation.
Further, control system includes singlechip and drive circuit, drive circuit receives singlechip control in order to drive driving motor, the singlechip is connected angle sensor and is compared with the beat angle of inputing in order to receive turned angle, drive anchor clamps riser with fixed angle range before the turned angle is crossed the beat angle for the first time and rotate, after the turned angle is crossed the beat angle for the first time, with dichotomy principle, the turned angle is then with the opposite direction driving motor of current direction at every crossing the beat angle, and the angle amplitude subtracts half, make turned angle constantly be close to the beat angle.
By adopting the technical scheme, the minimum dichotomy mathematical principle is utilized, the singlechip compares and judges, and the driving motor is driven to work through the driving circuit, so that the rotation angle is continuously close to the deflection angle, and the angle adjustment is quicker and more accurate.
The second objective of the present invention is to provide an angle control method implemented by the automatic angle adjustment mechanism for interferometer, which has the advantages of automatic angle adjustment, more accurate angle adjustment, and more efficient.
The second object of the present invention is achieved by the following technical solutions:
The angle control method realized by the automatic angle adjusting mechanism for the interferometer comprises the following steps
s1, obtaining a pre-input deflection angle;
s2, before the rotation angle firstly crosses the deflection angle, the fixture vertical plate is driven to rotate by a fixed angle amplitude, and after each rotation, the current rotation angle is collected once and is compared with the deflection angle for judgment;
And S3, when the rotation angle firstly crosses the deflection angle, driving the driving motor in the direction opposite to the current direction by the dichotomy principle after the rotation angle crosses the deflection angle, and reducing the angle amplitude by half to enable the rotation angle to be continuously close to the deflection angle.
In conclusion, the invention has the following beneficial effects: the horizontal shifting plate is driven to swing through the linear reciprocating motor so as to enable the vertical fixture plate to rotate, the rotating angle of the vertical fixture plate is collected while the vertical fixture plate rotates and compared with the pre-input deflection angle for judgment, the driving stroke of the driving motor is fed back and adjusted, the existing manual work is replaced, the adjustment and the correction are carried out through experience, and the efficiency and the accuracy of angle adjustment are improved.
drawings
FIG. 1 is a schematic structural diagram of a rear end view of a fixture vertical plate and a fixture vertical plate seat of an automatic angle adjusting mechanism for an interferometer;
FIG. 2 is a schematic structural diagram of a front view angle of a fixture vertical plate and a fixture vertical plate seat of the automatic angle adjustment mechanism for an interferometer;
FIG. 3 is a schematic structural view showing a connecting hole and an oil storage tank of a flat plate after a vertical plate of a hidden clamp is removed;
FIG. 4 is a schematic view of a card slot and an encoder structure of a plate connection hole;
FIG. 5 is a control system schematic;
fig. 6 is a software flow diagram.
In the figure, 1, a clamp platform; 11. a platform shaft; 12. a platform connection hole; 13. an oil storage tank; 2. a clamp vertical plate seat; 21. a vertical plate body; 211. a hollow-out section; 212. a cavity; 22. a horizontal connecting plate; 221. a connecting plate rotating shaft; 3. a fixture vertical plate; 31. horizontally shifting a plate; 311. a shifting plate connecting hole; 4. a linear reciprocating motor; 41. a motor mounting plate; 42. a ball bearing; 5. a hook spring; 51. pulling a hook; 6. a card slot; 7. a spring pin; 8. an encoder.
Detailed Description
The utility model provides an automatic angle adjustment mechanism for interferometer, refer to fig. 1, including anchor clamps platform 1, be equipped with anchor clamps riser seat 2 of fixed connection on anchor clamps platform 1 and rotate the anchor clamps riser 3 of connection on anchor clamps platform 1, anchor clamps riser seat 2 includes that the middle part has the vertical plate body 21 of through-hole, the bottom and the anchor clamps platform 1 fixed connection of vertical plate body 21, horizontal connection plate 22 is connected at the top of vertical plate body 21, be equipped with connecting plate pivot 221 on the horizontal connection plate 22, be equipped with the platform pivot 11 (visible in fig. 2) coaxial with connecting plate pivot 221 on the anchor clamps platform 1, anchor clamps riser 3 is located between horizontal connection plate 22 and anchor clamps platform 1, its top rotates with connecting plate pivot 221 to be connected, its bottom rotates with platform pivot 11 to be. The bottom of the fixture vertical plate 3 is connected with a horizontal shifting plate 31 towards the rear end of the fixture vertical plate seat 2, and the bottom of the vertical plate 21 is provided with a hollow part 211 for the horizontal shifting plate 31 to pass through and swing. A cavity 212 for the vertical fixture plate 3 to turn over is reserved on one side of the vertical fixture plate 21 in the deflection direction of the vertical fixture plate 3. From this anchor clamps riser 3 can be dialled the board 31 swing by the level and drive and rotate, and when anchor clamps riser 3 overturns, anchor clamps riser 3 naturally gets into and holds the chamber 212 in, need not to remain great space between anchor clamps riser 3 and the anchor clamps riser seat 2 from this, reduces whole volume.
Referring to fig. 1 and 2, a driving motor is disposed on a side of the fixture platform 1, the driving motor is a linear reciprocating motor 4 for driving the horizontal shifting plate 31 to swing to drive the fixture vertical plate 3 to rotate, the linear reciprocating motor 4 is fixedly connected to a side of the fixture platform 1 through a motor mounting plate 41, referring to fig. 3, a ball 42 is disposed at an output end of the linear reciprocating motor 4, and is in rolling connection with the side of the horizontal shifting plate 31 through the ball 42, so that the fixture vertical plate 3 is hidden in fig. 3 for easy observation.
Referring to fig. 1 and 3, be connected with between anchor clamps riser 3 and the anchor clamps platform 1 and be used for driving anchor clamps riser 3 to beat direction pivoted drag hook spring 5, the level is dialled board 31 and is worn to be equipped with and dials board connecting hole 311, anchor clamps platform 1 is worn to be equipped with platform connecting hole 12, it switches on with platform connecting hole 12 to dial board connecting hole 311, it is equipped with open draw-in groove 6 up to dial board connecting hole 311, the combination refers to fig. 4, platform connecting hole 12 is equipped with open draw-in groove 6 down, equal joint has spring catch 7 in the draw-in groove 6, drag hook spring 5's both ends all are equipped with drag hook 51, drag hook 51 hooks on spring catch 7, from this with the level dial board 31 and anchor clamps platform 1 elastic connection together, make the side that the level was dialled board 31 keep the.
When the horizontal shifting plate 31 and the clamp platform 1 are elastically connected, the draw hook 51 at the top of the draw hook spring 5 penetrates through the spring pin 7, the spring pin 7 is clamped in the clamping groove 6 of the shifting plate connecting hole 311, the draw hook spring 5 naturally enters the shifting plate connecting hole 311 and the platform connecting hole 12 from top to bottom, the draw hook spring 5 is properly stretched, the other spring pin 7 penetrates through the draw hook 51 at the bottom of the draw hook spring 5, then the spring pin 7 is clamped in the clamping groove 6, any spring pin 7 is dismounted in the dismounting process, and the draw hook spring 5 is taken out, so that the dismounting process is simple and rapid.
In the rotating process of the vertical fixture plate 3, the horizontal shifting plate 31 is in surface contact with the upper plane of the fixture platform 1, so that the friction force is large, as can be seen in fig. 3, an oil storage tank 13 is arranged on the plane where the fixture platform 1 is in contact with the horizontal shifting plate 31, the oil storage tank 13 is a concave waist-shaped hole, the long axis direction of the oil storage tank is tangent to the swinging track of the horizontal shifting plate 31, and the oil storage tank is used for storing lubricating oil and lubricating the horizontal shifting plate 31 and the upper plane of the fixture platform 1.
Referring to fig. 4, an encoder 8 for forming an angle sensor is arranged below the fixture platform 1, the encoder 8 is connected with the platform rotating shaft 11 for acquiring the rotating angle of the fixture vertical plate 3, and the encoder 8 is connected to the control system.
Referring to fig. 5, the control system includes a single chip microcomputer and a driving circuit, the driving circuit is controlled by the single chip microcomputer to drive the linear reciprocating motor, the single chip microcomputer is connected with an angle sensor to receive the rotation angle and compare with the pre-input deflection angle, the fixture vertical plate is driven to rotate with a fixed angle amplitude before the rotation angle first crosses the deflection angle, after the rotation angle first crosses the deflection angle, the motor is driven in the direction opposite to the current direction every time the rotation angle crosses the deflection angle, and the angle amplitude is halved to enable the rotation angle to be continuously close to the deflection angle, so that feedback regulation control of the driving stroke of the linear reciprocating motor is formed.
The rotation angle is continuously close to the deflection angle, the angle adjustment is quicker and more accurate, and it should be explained here that the 'over deflection angle' includes two conditions that the rotation angle is changed from less than the deflection angle to more than the deflection angle or the rotation angle is changed from more than the deflection angle to less than the deflection angle, that is to say, when the forward driving is carried out, if the rotation angle is more than the deflection angle, the reverse driving is carried out and the angle amplitude is reduced by half; when the reverse driving is performed, if the rotation angle is smaller than the deflection angle, the forward driving is performed and the angular amplitude is reduced by half.
The engineering of the single chip microcomputer is realized by software running in the single chip microcomputer, the running flow of the software is shown as figure 6, and the method comprises the following steps:
An angle control method comprises
S1, obtaining a pre-input deflection angle;
s2, before the rotation angle firstly crosses the deflection angle, the fixture vertical plate 3 is driven to rotate by a fixed angle amplitude, and after each rotation, the current rotation angle is collected once and is compared with the deflection angle for judgment;
And S3, when the rotation angle firstly crosses the deflection angle, driving the driving motor in the direction opposite to the current direction by the dichotomy principle after the rotation angle crosses the deflection angle, and reducing the angle amplitude by half to enable the rotation angle to be continuously close to the deflection angle.
In conclusion, the linear reciprocating motor 4 drives the horizontal shifting plate 31 to swing so as to enable the vertical fixture plate 3 to rotate, the rotating angle of the vertical fixture plate 3 is collected while the vertical fixture plate is rotated to be compared and judged with the pre-input deflection angle, the driving stroke of the driving motor is subjected to feedback adjustment, the existing manual work is replaced, the adjustment and the correction are carried out through experience, and the angle adjusting efficiency and the accuracy are improved.
the above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (9)
1. The utility model provides an automatic angle adjustment mechanism for interferometer which characterized by: the device comprises a clamp platform, wherein a clamp vertical plate seat fixedly connected to the clamp platform and a clamp vertical plate rotatably connected to the clamp platform are arranged on the clamp platform, an elastic piece used for driving the clamp vertical plate to rotate in the opposite direction of the deflection direction is connected between the clamp vertical plate and the clamp platform, the clamp platform is also connected with a driving motor used for driving the clamp vertical plate to rotate, an angle sensor used for acquiring the rotation angle of the clamp vertical plate and a control system used for comparing the acquired rotation angle with a pre-input deflection angle to form feedback regulation control on the driving stroke of the driving motor; the driving motor is a linear reciprocating motor which is used for pushing the horizontal shifting plate to swing so as to drive the vertical plate of the clamp to rotate; the control system comprises a single chip microcomputer and a drive circuit, the drive circuit is controlled by the single chip microcomputer to drive a drive motor, the single chip microcomputer is connected with an angle sensor to receive the comparison between a rotation angle and a pre-input deflection angle, the vertical plate of the clamp is driven to rotate at a fixed angle amplitude before the rotation angle firstly crosses the deflection angle, and after the rotation angle firstly crosses the deflection angle, the motor is driven in a direction opposite to the current direction every time the rotation angle crosses the deflection angle according to a dichotomy principle, and the angle amplitude is halved, so that the rotation angle is continuously close to the deflection angle; forming feedback regulation control on the driving stroke of the linear reciprocating motor; the 'over deflection angle' includes two conditions that the rotation angle is changed from being smaller than the deflection angle to being larger than the deflection angle or the rotation angle is changed from being larger than the deflection angle to being smaller than the deflection angle, namely when the forward driving is carried out, if the rotation angle is larger than the deflection angle, the backward driving is carried out and the angle amplitude is reduced by half; when the reverse driving is performed, if the rotation angle is smaller than the deflection angle, the forward driving is performed and the angular amplitude is reduced by half.
2. The automatic angle adjustment mechanism for interferometer according to claim 1, wherein: the fixture vertical plate seat comprises a vertical plate body with a through hole in the middle, the bottom of the vertical plate body is fixedly connected with the fixture platform, a horizontal connecting plate is connected to the top of the vertical plate body, and the fixture vertical plate is rotatably connected between the horizontal connecting plate and the fixture platform.
3. The automatic angle adjustment mechanism for interferometer according to claim 2, wherein: the horizontal connecting plate is provided with a connecting plate rotating shaft, the clamp platform is provided with a platform rotating shaft coaxial with the connecting plate rotating shaft, the vertical plate of the clamp is connected with the connecting plate rotating shaft and the platform rotating shaft so as to realize rotation, and the angle sensor is connected with the platform rotating shaft below the clamp platform.
4. The automatic angle adjustment mechanism for interferometer according to claim 2, wherein: a containing cavity for the vertical fixture plate to turn over is reserved on one side of the vertical plate body in the deflection direction of the vertical fixture plate.
5. The automatic angle adjustment mechanism for interferometer according to claim 2, wherein: the bottom of the fixture vertical plate is connected with a horizontal shifting plate, and the bottom of the vertical plate body is provided with a hollow part for the horizontal shifting plate to pass through and swing.
6. The automatic angle adjustment mechanism for interferometer according to claim 5, wherein: the horizontal shifting plate is provided with a shifting plate connecting hole in a penetrating manner, the clamp platform is provided with a platform connecting hole in a penetrating manner, the shifting plate connecting hole is communicated with the platform connecting hole, one end of the elastic piece is connected in the shifting plate connecting hole, and the other end of the elastic piece is connected in the platform connecting hole; dial the board connecting hole and be equipped with open draw-in groove up, the platform connecting hole is equipped with open draw-in groove down, and equal joint has the spring catch in the draw-in groove, and the elastic component is the drag hook spring, and the both ends of drag hook spring all are equipped with the drag hook, and the drag hook is hooked on the spring catch.
7. The automatic angle adjustment mechanism for interferometer according to claim 1, wherein: an oil storage tank for storing lubricating oil is arranged on the plane where the clamp platform is contacted with the horizontal shifting plate; the oil storage tank is a concave waist-shaped hole, and the long axis direction of the oil storage tank is tangent to the swing track of the horizontal shifting plate.
8. The automatic angle adjustment mechanism for interferometer according to claim 5, wherein: the driving motor is a linear reciprocating motor, the output end of the driving motor is abutted against the side surface of the horizontal shifting plate in the swinging direction of the horizontal shifting plate to push the horizontal shifting plate to swing, and a ball is arranged at the abutted position of the output end of the linear reciprocating motor and the horizontal shifting plate.
9. An angle control method implemented by an automatic angle adjustment mechanism based on the interferometer according to claim 1, characterized in that: comprises that
S1, obtaining a pre-input deflection angle;
S2, before the rotation angle firstly crosses the deflection angle, the fixture vertical plate is driven to rotate by a fixed angle amplitude, and after each rotation, the current rotation angle is collected once and is compared with the deflection angle for judgment;
And S3, when the rotation angle firstly crosses the deflection angle, driving the driving motor in the direction opposite to the current direction by the dichotomy principle after the rotation angle crosses the deflection angle, and reducing the angle amplitude by half to enable the rotation angle to be continuously close to the deflection angle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611248171.1A CN106596052B (en) | 2016-12-29 | 2016-12-29 | Automatic angle adjusting mechanism for interferometer and angle control method thereof |
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| CN201611248171.1A CN106596052B (en) | 2016-12-29 | 2016-12-29 | Automatic angle adjusting mechanism for interferometer and angle control method thereof |
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| CN106596052B true CN106596052B (en) | 2019-12-06 |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04269611A (en) * | 1991-02-26 | 1992-09-25 | Canon Inc | Interference optical apparatus |
| CN2690905Y (en) * | 2004-02-17 | 2005-04-06 | 中国科学院力学研究所 | Automatic angle focusing imaging system when object plane and light shaft forming inclined intersection angle |
| CN101561260B (en) * | 2008-04-16 | 2011-04-20 | 周其 | Optical fibre end face surveymeter |
| CN201199273Y (en) * | 2008-04-16 | 2009-02-25 | 周其 | Optical fiber connector positioning apparatus for detecting optical fiber end-face |
| CN102057307B (en) * | 2008-06-13 | 2015-07-22 | 株式会社藤仓 | Optical fiber connection method, connection tool, and connection jig for optical fiber |
| CN101651442B (en) * | 2008-08-15 | 2011-09-28 | 深圳市汇川技术股份有限公司 | Method and system for correcting electrical angle of motor rotor |
| CN102062942B (en) * | 2010-12-15 | 2012-02-29 | 同济大学 | Deflecting optical wedge scanning device |
| CN202267474U (en) * | 2011-09-06 | 2012-06-06 | 李瑜芳 | Angle sensor characteristic test rotation platform |
| CN104075880B (en) * | 2014-06-13 | 2017-01-18 | 苏州华徕光电仪器有限公司 | Single prism group with angle adjustable |
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