CN110987024B - Device for measuring drift by utilizing infrared light plane mirror imaging and using method - Google Patents
Device for measuring drift by utilizing infrared light plane mirror imaging and using method Download PDFInfo
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- CN110987024B CN110987024B CN201911396029.5A CN201911396029A CN110987024B CN 110987024 B CN110987024 B CN 110987024B CN 201911396029 A CN201911396029 A CN 201911396029A CN 110987024 B CN110987024 B CN 110987024B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
Abstract
The invention discloses a device for measuring drift by utilizing infrared light plane mirror imaging and a using method thereof, and the device comprises a first reflector, a second reflector, an indicating light source, a display grating and a fixing device which are connected on a platform, wherein the fixing device comprises a fixing support, a position marker groove is formed in the fixing support, a position marker is placed in the position marker groove, the position marker comprises an outer frame and a lens part which is connected in the outer frame by a universal support, a vertical plate is connected on the platform behind the fixing support, a first pin is inserted in the vertical plate from back to front, the front end of the first pin is inserted in a first pin hole in the center of a protective cover, and the indicating light source is aligned with the lens part of the position marker. The length of a reflection light path is prolonged and a light spot image is amplified through the tertiary reflection of the position marker, the first reflector and the second reflector; and then, calibrating the grid value of the drifting reticle by precisely carving a coordinate graph on the display grating, so that the magnitude and the direction of the position of the projected light spot can be accurately and visually read.
Description
Technical Field
The invention belongs to the field of drift detection of a position marker, and particularly relates to a device for measuring drift by using infrared light plane mirror imaging and a using method thereof.
Background
In the guidance weapon system, a level marker (hereinafter referred to as a gyro component) with a gyro as a platform is an essential key component, and the drift amount is one of the most important and basic performance indexes of the gyro component. The drift index directly reflects the quality performance of the comprehensive performance of the gyro component, and the smaller the drift amount of the gyro component is, the higher the tracking and hit precision of a guided weapon system using the gyro component is. In the mass production process of the guided weapon system, the drift amount is controlled within a certain range by debugging the static balance of the gyro component.
In the traditional method for measuring the drift of the gyro component, after zero positions of the goniometer in the pitching and yawing directions of the gyro component are calibrated, electrical signal variation in the pitching and yawing directions within a certain time is respectively measured during working, and a drift angle value is calculated according to the electrical signal variation. The traditional test method has two defects, one is that the test is not intuitive, so that an operator cannot be effectively guided to debug the static balance of the gyro component to achieve the purpose of controlling the drift amount within a certain range, and the other is that the drift amount at a specific frame angle cannot be tested.
Based on the two defects of the traditional test method, when a certain type of laser guide bomb seeker is developed, because the certain type of laser guide bomb seeker needs to work under a large frame angle, a gyro component is adopted as a stable platform, the designed frame angle works in a large range of +/-35 degrees, and when the gyro component is debugged, the drift indexes of the gyro component at specific angles of 0 degrees, +/-15 degrees and +/-30 degrees need to be tested respectively, so that the traditional test method cannot meet the existing production requirements of researching the certain type of laser guide bomb seeker. Therefore, the efficient and intuitive gyro component drift measurement method can ensure the overall quality of products, improve the assembly and debugging efficiency of the products and provide reliable production guarantee for realizing the consistency of technical indexes of the products.
Disclosure of Invention
The invention aims to provide a device for measuring drift by using infrared plane mirror imaging and a using method thereof, so as to efficiently and visually detect the drift amount of a position marker.
The invention aims to realize the device for measuring drift by using infrared plane mirror imaging, which comprises a first reflector, a second reflector, an indicating light source, a display grating and a fixing device, wherein the first reflector, the second reflector, the indicating light source, the display grating and the fixing device are connected to a platform, the fixing device comprises a fixing support, a position marker groove is formed in the fixing support, a position marker is placed in the position marker groove, the position marker comprises an outer frame and a lens part connected with the outer frame through a universal support, a protective cover is connected to the rear part of the lens part, a first pin hole is formed in the center of the protective cover, a vertical plate is connected to the platform behind the fixing support, a first pin is inserted into the vertical plate from back to front, the front end of the first pin is inserted into the first pin hole in the center of the protective cover, the indicating light source is aligned to the lens part of the position marker, the first reflector is arranged on a route of light emitted by the indicating light source after being reflected by the lens part, the second reflector is arranged on a route of the light, the light reflected by the first reflector, the second reflector is arranged on a route of the light, the second reflector, the light is arranged on the route of the light reflected by the second reflector, and the display grating, the controller is connected to the display grating, and is connected to the light source and the position marker.
The bottom of the fixed support is connected with a rotating shaft, and the rotating shaft is connected with the platform.
The bottom of the fixed support is also connected with a frame angle indicating needle, and a dial is connected to a platform in front of the frame angle indicating needle.
The front of the position marker groove is connected with a threaded handle which is inserted into the position marker groove backwards, and the rear end of the threaded handle is in contact with the outer frame of the position marker in the position marker groove.
The upper end of the outer frame of the position marker is provided with a second pin hole, the second pin hole and the first pin hole are positioned on the same vertical plane, a second pin is further inserted forwards on the vertical plate, and the front end of the second pin is inserted into the second pin hole.
The display grating is drawn with a plurality of concentric circles with different diameters by taking the center as the center of a circle.
The use method of the device for measuring the drift by using the infrared light flat mirror imaging comprises the following steps:
the method comprises the following steps that firstly, a position marker is clamped, the position marker to be tested is placed in a position marker groove of a fixing support, the fixing support is rotated through a rotating shaft, a frame angle on the fixing support is pointed to a zero point on a standard dial, a second pin hole on an outer frame is pointed to a second pin on a vertical plate, after the second pin is vertically inserted into the second pin hole for positioning, two threaded handles are rotated, the threaded handles extend backwards to abut against the front of the outer frame, the outer frame is clamped in the position marker groove, and finally the second pin is withdrawn;
secondly, locking a frame angle, rotating the lens component to enable the first pin to be vertically inserted into the first pin hole in the protective cover, and locking the fixed support, wherein the frame angle is zero degree;
measuring the drift amount, starting an indicating light source and a position marker, reflecting infrared rays emitted by the indicating light source by the position marker, a first reflector and a second reflector and then striking the infrared rays on a display grating to form red light spots on the display grating;
simultaneously, the first pin is withdrawn from the first pin hole, the controller is started to time, when the preset time is up, the controller gives an alarm, and the corresponding magnitude and the azimuth angle of the position of the infrared spot are observed, namely the drift magnitude and the azimuth angle of the position marker when the frame angle is zero degrees;
after the second step, self-checking is carried out, the position marker is started, the lens component rotates to a rated revolution, the indicating light source is turned on, infrared rays emitted by the indicating light source are reflected by the position marker, the first reflecting mirror and the second reflecting mirror and then are incident on the display grating, if infrared light spots fall at the center of a concentric circle on the display grating, the frame angle is in a zero position state, and the self-checking is finished;
if the infrared light spot is not positioned at the center of the concentric circle, the first pin is not vertically inserted into the first pin hole on the protective cover, the first pin is withdrawn, and the angle of the lens component is adjusted, so that the first pin is vertically inserted into the first pin hole on the protective cover, and the infrared light spot falls at the center of the concentric circle on the display grating.
When the drift amount of the position marker under the condition of measuring the X-degree frame angle is measured, the fixed support is rotated through the rotating shaft until the frame angle indicating needle points to X degrees on the dial, at the moment, the lens part is fixed by the first pin and does not rotate, the indicating light source and the position marker are started, infrared rays emitted by the indicating light source are reflected by the position marker, the first reflecting mirror and the second reflecting mirror and then are incident on the display grating, and a red light spot is formed on the display grating;
and simultaneously withdrawing the first pin from the first pin hole, starting the controller to time, and after the preset time is up, alarming by the controller to observe the corresponding magnitude and the azimuth angle of the position of the infrared spot, namely the drift magnitude and the azimuth angle of the position marker under the X-degree frame angle.
The invention has the beneficial effects that: 1. through the tertiary reflection of the position marker, the first reflector and the second reflector, the length of a reflection light path is prolonged to 200 mm through design calculation, and the magnification of 10 times when a light spot image is magnified and a grating is displayed can be realized; and then, calibrating the grid value of the drift reticle by precisely carving a coordinate graph on the display grating according to the proportion of 10 to 1, and accurately and visually reading the magnitude and the direction of the position of the projected light spot, wherein the magnitude is the drift quantity.
2. The gyro part connected to the universal bracket is locked through the first pin and the first pin hole, and the outer frame is locked through the second pin and the threaded handle, so that the purpose of locking the frame angle is achieved, and the drift amount under different frame angles can be measured.
3. Through the gyro part of gimbal connection to and be used for fixed first pin, adjust the test benchmark, zero degree position promptly, make the position marker ware of guidance such as laser, infrared, millimeter wave, TV all can test through this device, application scope is wide.
Drawings
FIG. 1 is a top view of the apparatus;
FIG. 2 is a sectional view of the apparatus;
FIG. 3 is a cross-sectional view of the mounting bracket;
FIG. 4 is a schematic diagram of a slot structure of the position marker;
FIG. 5 is a schematic view of a protective cover;
FIG. 6 is a cross-sectional view of the indexer;
FIG. 7 is a front view of the indexer;
FIG. 8 is a front view of a display grating;
FIG. 1, indicating a light source; 2. a first reflector; 3. displaying a grating; 4. a threaded handle; 5. a fixed bracket; 5-1, a position marker slot; 6. a position marker; 6-1, an outer frame; 6-2 lens components; 7. a second pin; 8. a vertical plate; 9. a second reflector; 10. a first pin; 11. a dial scale; 12. a protective cover; 13. a frame angle pointer; 14. a first pin hole.
The present invention will be described in further detail with reference to the drawings and examples.
Detailed Description
[ example 1 ]
As shown in fig. 1 to 7, a device for measuring drift by using imaging of an infrared light plane mirror comprises a first reflector 2, a second reflector 9, an indicating light source 1, a display grating 3 and a fixing device connected to a platform, wherein the fixing device comprises a fixing support 5, a position marker groove 5-1 is formed in the fixing support 5, a position marker 6 is placed in the position marker groove 5-1, the position marker 6 comprises an outer frame 6-1 and a lens component 6-2 connected with the outer frame 6-1 by a universal bracket, a protective cover 12 is connected to the rear of the lens component 6-2, a first pin hole 14 is formed in the center of the protective cover 12, a vertical plate 8 is connected to the platform behind the fixing support 5, a first pin 10 is inserted into the vertical plate 8 from back to front, the front end of the first pin 10 is inserted into the first pin hole 14 in the center of the protective cover 12, the indicating light source 1 is aligned to the lens component 6-2 of the position marker 6, light emitted by the indicating light source 1 is provided with the first reflector 2 on a route reflected by the lens component 6-2, the first reflector 2 is provided with a light source, the second reflector 9 is connected with a display grating, and an electric signal is connected to the display grating 9, and the display grating 9 is connected to the display light source and the display grating 9.
As shown in fig. 7, the position marker 6 includes an outer circular outer frame 6-1, a lens component 6-2 is connected to the inside of the outer frame 6-1 through a universal bracket, and the lens component 6-2 can freely rotate in the outer frame 6-1 by means of the universal bracket.
As shown in fig. 2 and 4, the fixing bracket 5 is provided with a position marker groove 5-1 for placing the outer frame 6-1, and the position marker groove 5-1 is arc-shaped and matched with the outer frame 6-1.
As shown in FIG. 5, the lens component 6-2 is connected to the rear of the protective cover 12, and a first pin hole 14 is formed at the center of the protective cover 12.
The platform behind the fixed support 5 is connected with a vertical plate 8, a first pin 10 is inserted on the vertical plate 8 from back to front, and the front end of the first pin 10 is vertically inserted into a first pin hole 14. The lens component 6-2 can be fixed in position and can rotate freely, the first pin 10 can be inserted into the first pin hole 14 vertically only when the lens component 6-2 is swung, and if the lens component 6-2 is inclined, the first pin 10 can not be inserted into the first pin hole 14, and the lens component 6-2 can be located at the right position simply and quickly.
The platform is also provided with a first reflector 2, a second reflector 9, an indicating light source 1 and a display grating 3, the indicating light source 1 emits infrared light to the lens at the front end of the lens part 6-2, the infrared light is reflected to the first reflector 2 by the lens part 6-2 and then reflected to the second reflector 9 by the first reflector 2, the second reflector 9 of the second reflector reflects to the display grating 3, the display grating 3 is perpendicular to the reflected light reflected by the second reflector 9, and the infrared light forms infrared spots on the display grating 3.
The platform is also provided with a controller for controlling the start of the indicating light source 1 and the position marker 6, and is also provided with a timing module for alarming after the set time is reached.
[ example 2 ]
As shown in fig. 1, on the basis of embodiment 1, the bottom of the fixing bracket 5 is connected with a rotating shaft, and the rotating shaft is connected with the platform.
The bottom of the fixed support 5 is also connected with a frame angle indicating needle 13, and a dial 11 is connected to a platform in front of the frame angle indicating needle 13.
The central line of the fixed bracket 5, the central point of the outer frame 6-1, the second pin hole on the outer frame 6-1, the second pin 7, the first pin hole 14 on the lens component 6-2, the first pin 10 and the frame angle pointer 13 are all on the same straight line with the zero degree on the dial 11, so that as long as the frame angle pointer 13 points to the zero degree, the correct position of the fixed bracket 5 is determined,
the second pin hole is aligned with the second pin 7 and then is placed into the fixed bracket 5, so that the outer frame 6-1 can be fixed to the correct position,
after the first pin hole 14 and the first pin 10 are aligned, the lens component 6-2 is fixed to the correct position.
The bottom of the fixed bracket 5 is connected with a frame angle indicator 13, the frame angle indicator 13 points to the dial 11, the fixed bracket 5 can rotate due to the rotating shaft, and the frame angle indicator 13 and the dial 11 display how much the fixed bracket 5 rotates.
[ example 3 ]
As shown in figures 1 to 4, on the basis of the embodiment 2, a threaded handle 4 which is backwards inserted into the position marker groove 5-1 is connected in front of the position marker groove 5-1, and the rear end of the threaded handle 4 is in contact with a position marker outer frame 6-1 in the position marker groove 5-1.
The threaded handle 4 is passed forwardly through the front wall of the register slot 5-1 against the outer frame 6-1, and the threaded handle 4 is tightened to secure the outer frame 6-1 within the register slot 5-1.
The upper end of the outer frame 6-1 of the position marker 6 is provided with a second pin hole, the second pin hole and the first pin hole 14 are positioned on the same vertical plane, a second pin 7 is further inserted forwards on the vertical plate 8, and the front end of the second pin 7 is inserted into the second pin hole.
The back of the upper end of the outer frame 6-1 is also provided with a second pin hole which is positioned on a vertical line of the center of the whole position marker 6 like the first pin hole 14, a second pin 7 is inserted on the vertical plate 8, the second pin 7 is inserted into the second pin hole, the second pin and the first pin 10 are positioned on the same vertical line,
when the positioning device is used, the second pin hole of the outer frame 6-1 is aligned to the second pin 7, then the outer frame 6-1 is placed in the positioning device, the center of the outer frame 6-1 and the center of the position marker groove 5-1 are ensured to be on the same vertical line, and the first pin hole 14 and the first pin 10 are aligned, so that the subsequent first pin 10 can be conveniently inserted.
The display grating 3 is drawn with a plurality of concentric circles with different diameters by taking the center as the center of a circle.
As shown in fig. 8, when the frame angle is zero, the infrared spot falls on the center of the display grating 3, and a plurality of concentric circles with different radii are drawn by using the center as the center of the circle, and the radius difference between two adjacent circles is a fixed value, so that when the spot deviates from the center point, where the spot deviates and how far the spot deviates can be visually seen.
[ example 4 ]
On the basis of embodiment 3, as shown in fig. 1 to 8, a method for using an apparatus for measuring drift by using infrared light flat mirror imaging comprises the following steps:
firstly, clamping a position marker, namely placing the position marker 6 to be tested into a position marker groove 5-1 of a fixed support 5, rotating the fixed support 5 through a rotating shaft, enabling a frame angle indicator 13 on the fixed support 5 to be aligned with a zero point on a dial 11, enabling a second pin hole on an outer frame 6-1 to be aligned with a second pin 7 on a vertical plate 8, after the second pin 7 is vertically inserted into the second pin hole for positioning, rotating two threaded handles 4, enabling the threaded handles 4 to extend backwards and prop against the front of the outer frame 6-1, clamping the outer frame 6-1 in the position marker groove 5-1, and finally withdrawing the second pin 7;
the position marker 6 is placed in the position marker groove 5-1, then the fixing support 5 is rotated through the rotating shaft until the frame angle indicator 13 in the middle of the fixing support 5 points to the zero-degree point of the dial 11, at this time, the second pin hole of the outer frame 6-1 is aligned with the second pin 7 on the vertical plate 8, the second pin 7 can not be vertically inserted into the second pin hole, if the fixing support 5 is not positioned at zero degree, the second pin 7 cannot be vertically inserted into the second pin hole, so that the position of the outer frame 6-1 can be ensured to be correct, after the second pin hole is aligned, the threaded handle 4 is screwed tightly, the outer frame 6-1 is clamped from the lower part, and then the second pin 7 can be withdrawn.
Secondly, locking a frame angle, rotating the lens component 6-2 to enable the first pin 10 to be vertically inserted into the first pin hole 14 on the protective cover 12, and locking the fixed support 5, wherein the frame angle is zero degree;
in the first step, the outer frame 6-1 is fixed, then the lens part 6-2 is fixed until the first pin 10 is vertically inserted into the first pin hole 14 on the protective cover 12, at this time, the lens part 6-2 is also fixed, the fixing support 5 is locked and locked to prevent the fixing support 5 from rotating again, at this time, the center of the lens part 6-2 also points to zero, the included angle between the center of the lens part 6-2 and the fixing support 5 is zero, and the frame angle is zero.
Measuring drift amount, starting the indicating light source 1 and the position marker 6, reflecting infrared rays emitted by the indicating light source 1 by the position marker 6, the first reflecting mirror 2 and the second reflecting mirror 9 and then striking the infrared rays on the display grating 3 to form red light spots on the display grating 3;
simultaneously, the first pin 10 is withdrawn from the first pin hole 14, the controller is started to time, when the preset time is up, the controller gives an alarm, and the corresponding magnitude and the azimuth angle of the position of the infrared spot are observed, namely the drift magnitude and the azimuth angle of the position marker 6 when the frame angle is zero degree;
when the drift amount is measured, the indicating light source 1 is started, the emitted infrared rays are reflected by the first reflecting mirror 2 and the second reflecting mirror 9 of the lens component 6-2 and then are incident on the display grating 3, a red light spot is formed on the display grating 3, and the light spot falls at the center of a concentric circle in the display grating 3.
The controller starts the lens component 6-2 of the position marker 6, the lens component 6-2 starts to rotate after exiting from the first pin 10 and reaches a rated revolution after preset time, meanwhile, the controller counts time, gives an alarm after reaching the preset time and immediately checks the position of the light spot, at the moment, the lens component 6-2 changes compared with the position before rotation due to rotation, so that the light spot leaves the center of a circle, and the corresponding magnitude and azimuth angle of the position of the light spot can be clearly and visually seen according to the concentric circles, namely the drift amount and the azimuth angle when the frame angle is zero.
After the second step, self-checking is carried out, the position marker 6 is started, the indicating light source 1 is turned on after the lens component 6-2 rotates to the rated revolution, infrared rays emitted by the indicating light source 1 are reflected by the position marker 6, the first reflecting mirror 2 and the second reflecting mirror 9 and then are incident on the display grating 3, if infrared light spots fall at the center of a concentric circle on the display grating 3, the frame angle is in a zero state, and the self-checking is finished;
if the infrared spot is not located at the center of the concentric circle, the first pin 10 is not vertically inserted into the first pin hole 14 on the protective cover 12, the first pin 10 is withdrawn, and the angle of the lens component 6-2 is adjusted, so that the first pin 10 is vertically inserted into the first pin hole 14 on the protective cover 12, and the infrared spot falls at the center of the concentric circle on the display grating 3.
During self-checking, the lens component 6-2 of the indicating light source 1 and the position marker 6 is started in the same way, but the lens component 6-2 is still fixed and cannot rotate because the first pin 10 is not withdrawn, and the infrared spot is supposed to fall at the center of the circle of the display grating 3 at the moment, if the infrared spot does not fall at the center of the circle of the display grating 3, the fixed frame support 5 or one or more of the lens components 6-2 are not aligned, the angle of the fixed frame support 5 and the outer frame 6-2 are adjusted, and the lens component 6-2 is adjusted, so that the infrared spot falls at the center of the circle of the display grating 3.
When the drift amount of the position marker 6 under the condition of measuring the X-degree frame angle is measured, the fixed support 5 is rotated through the rotating shaft until the frame angle indicating needle 13 points to X degrees on the dial 11, at the moment, the lens component 6-2 is fixed by the first pin 10 and does not rotate, the indicating light source 1 and the position marker 6 are started, infrared rays emitted by the indicating light source 1 are reflected by the position marker 6, the first reflecting mirror 2 and the second reflecting mirror 9 and then are shot on the display grating 3, and a red light spot is formed on the display grating 3;
and simultaneously, the first pin 10 is withdrawn from the first pin hole 14, the controller is started to time, and when the preset time is up, the controller gives an alarm and observes the corresponding magnitude and the azimuth of the position of the infrared spot, namely the drift and the azimuth of the position marker 6 under the frame angle of X degree.
When a certain angle, i.e., X degrees, e.g., 30 degrees, is measured, the fixing bracket 5 is rotated until the frame angle indicating needle 13 points 30 degrees on the scale plate 11, at which time the second pin 7 is withdrawn so that the fixing bracket 5 can be rotated, but the first pin 10 is not withdrawn so that the lens part 6-2 does not rotate when the fixing bracket 5 is rotated.
After the rotation is finished, the lens component 6-2 starts to rotate after exiting the first pin 10 and reaches the rated revolution after the preset time, meanwhile, the controller times, gives an alarm to prompt after the preset time is reached, and the position of the light spot is immediately checked, at the moment, the lens component 6-2 changes compared with the position before the rotation due to the rotation, so that the light spot leaves the center of the circle, and the corresponding magnitude and azimuth angle of the position of the light spot, namely the drift amount and the azimuth angle when the frame angle is 30 degrees, can be clearly and visually seen according to the concentric circles.
Claims (9)
1. The utility model provides an utilize infrared light level crossing formation of image to measure device that drifts which characterized in that: the light source display device comprises a first reflector (2), a second reflector (9), an indicating light source (1), a display grating (3) and a fixing device, wherein the first reflector (2), the second reflector (9), the indicating light source (1), the display grating (3) and the fixing device are connected on a platform, the fixing device comprises a fixing support (5), a position marker groove (5-1) is formed in the fixing support (5), a position marker (6) is placed in the position marker groove (5-1), the position marker (6) comprises an outer frame (6-1) and a lens component (6-2) connected with the outer frame (6-1) through a universal support, a protective cover (12) is connected behind the lens component (6-2), a first pin hole (14) is formed in the center of the protective cover (12), a vertical plate (8) is connected on the platform behind the fixing support (5), a first pin (10) is inserted in front of the vertical plate (8) from back, the front end of the first pin (10) is inserted in the first pin hole (14) in the center of the protective cover (12), the indicating light source (1) is directed at the position marker component (6-2), the light rays emitted by the indicating light source (1) are reflected by the first reflector (9), and the light source (9) is arranged on a light reflected route of the first reflector (9) on the reflecting path of the lens reflector (9), and the display grating (3) is vertical to the light reflected by the second reflecting mirror (9), the platform is also connected with a controller, and the controller is respectively connected with the indicating light source (1) and the position marker (6) through electric signals.
2. The apparatus of claim 1 for measuring drift by using infrared light flat mirror imaging, wherein: the bottom of the fixed support (5) is connected with a rotating shaft, and the rotating shaft is connected with the platform.
3. The apparatus of claim 1 for measuring drift by using infrared light flat mirror imaging, wherein: the bottom of the fixed support (5) is also connected with a frame angle indicating needle (13), and a dial (11) is connected to a platform in front of the frame angle indicating needle (13).
4. The device for measuring drift by using infrared light plane mirror imaging as claimed in claim 1, wherein: the front of the position marker groove (5-1) is connected with a threaded handle (4) which is inserted into the position marker groove (5-1) backwards, and the rear end of the threaded handle (4) is in contact with an outer frame (6-1) of the position marker in the position marker groove (5-1).
5. The apparatus of claim 1 for measuring drift by using infrared light flat mirror imaging, wherein: the upper end of the outer frame (6-1) of the position marker (6) is provided with a second pin hole, the second pin hole and the first pin hole (14) are positioned on the same vertical plane, a second pin (7) is further inserted forwards on the vertical plate (8), and the front end of the second pin (7) is inserted into the second pin hole.
6. The device for measuring drift by using infrared light plane mirror imaging as claimed in claim 1, wherein: the display grating (3) is drawn with a plurality of concentric circles with different diameters by taking the center as the center of a circle.
7. The use method of the device for measuring the drift by using the infrared light plane mirror imaging is characterized by comprising the following steps of:
firstly, clamping a position marker, namely placing the position marker (6) to be tested into a position marker groove (5-1) of a fixed support (5), rotating the fixed support (5) through a rotating shaft, enabling a frame angle indicator (13) on the fixed support (5) to align to a zero point on a dial (11), enabling a second pin hole on an outer frame (6-1) to align to a second pin (7) on a vertical plate (8), vertically inserting the second pin (7) into the second pin hole, rotating two threaded handles (4) after positioning is finished, enabling the threaded handles (4) to extend backwards, propping against the front of the outer frame (6-1), clamping the outer frame (6-1) in the position marker groove (5-1), and finally withdrawing the second pin (7);
secondly, locking a frame angle, rotating the lens component (6-2) to enable a first pin (10) to be vertically inserted into a first pin hole (14) in a protective cover (12), and locking a fixed support (5), wherein the frame angle is zero degree;
thirdly, measuring the drift amount, starting the indicating light source (1) and the position marker (6), reflecting infrared rays emitted by the indicating light source (1) by the position marker (6), the first reflector (2) and the second reflector (9) and then striking the infrared rays on the display grating (3), and forming red light spots on the display grating (3);
and simultaneously, the first pin (10) is withdrawn from the first pin hole (14), the controller is started to start timing, and after the preset time is up, the controller gives an alarm to observe the corresponding magnitude and the azimuth angle of the position of the infrared spot, namely the drift magnitude and the azimuth angle of the position marker (6) when the frame angle is zero degree.
8. The use method of the device for measuring drift by using infrared light flat mirror imaging according to claim 7, wherein the device comprises the following steps: after the second step, self-checking is carried out, the position marker (6) is started, the lens component (6-2) rotates to a rated revolution, the indicating light source (1) is turned on, infrared rays emitted by the indicating light source (1) are reflected by the position marker (6), the first reflecting mirror (2) and the second reflecting mirror (9) and then are incident on the display grating (3), if infrared light spots fall at the center of a concentric circle on the display grating (3), the frame angle is in a zero position state, and the self-checking is finished;
if the infrared light spot is not positioned at the center of the concentric circle, the first pin (10) is not vertically inserted into the first pin hole (14) on the protective cover (12), the first pin (10) is withdrawn, and the angle of the lens component (6-2) is adjusted, so that the first pin (10) is vertically inserted into the first pin hole (14) on the protective cover (12), and the infrared light spot is positioned at the center of the concentric circle on the display grating (3).
9. The use method of the device for measuring drift by using infrared light flat mirror imaging according to claim 7, wherein the device comprises the following steps: when the drift amount of the position marker (6) under the condition of measuring the X-degree frame angle is measured, the fixed support (5) is rotated through the rotating shaft until the frame angle indicating needle (13) points to the X-degree on the dial (11), at the moment, the lens component (6-2) is fixed by the first pin (10) and does not rotate, the indicating light source (1) and the position marker (6) are started, infrared rays emitted by the indicating light source (1) are reflected by the position marker (6), the first reflecting mirror (2) and the second reflecting mirror (9) and then are incident on the display grating (3), and a red light spot is formed on the display grating (3);
and simultaneously, the first pin (10) is withdrawn from the first pin hole (14), the controller is started to start timing, and after the preset time is up, the controller gives an alarm to observe the corresponding magnitude and the azimuth angle of the position of the infrared spot, namely the drift magnitude and the azimuth angle of the position marker (6) under the X-degree frame angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1623574A1 (en) * | 1967-05-13 | 1971-04-01 | Stier Karl Heinrich Wilhelm Dr | Optical multiple tap for band-hung north-looking gyro measuring systems |
| CN1472525A (en) * | 2002-07-30 | 2004-02-04 | 中国石油化工股份有限公司 | On-line near-infrared spectrograph |
| CN104267505A (en) * | 2014-10-13 | 2015-01-07 | 中国电子科技集团公司第四十一研究所 | Optical grating rotary light splitting device and method for optical wedge delay polarization elimination |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1623574A1 (en) * | 1967-05-13 | 1971-04-01 | Stier Karl Heinrich Wilhelm Dr | Optical multiple tap for band-hung north-looking gyro measuring systems |
| CN1472525A (en) * | 2002-07-30 | 2004-02-04 | 中国石油化工股份有限公司 | On-line near-infrared spectrograph |
| CN104267505A (en) * | 2014-10-13 | 2015-01-07 | 中国电子科技集团公司第四十一研究所 | Optical grating rotary light splitting device and method for optical wedge delay polarization elimination |
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