CN212723318U - Angle measuring device for CR-InSAR corner reflector - Google Patents
Angle measuring device for CR-InSAR corner reflector Download PDFInfo
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- CN212723318U CN212723318U CN202020862997.2U CN202020862997U CN212723318U CN 212723318 U CN212723318 U CN 212723318U CN 202020862997 U CN202020862997 U CN 202020862997U CN 212723318 U CN212723318 U CN 212723318U
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Abstract
The utility model relates to an angle measuring device for CR-InSAR corner reflector, including perpendicular and fixed horizontal dead lever and the longitudinal tie as an organic whole of each other, telescopic link about the both ends of horizontal dead lever are connected. A positioning plate which is vertical to the longitudinal fixing rod and can move up and down is arranged on the longitudinal fixing rod; and a three-dimensional electronic compass for measuring the azimuth angle and the elevation angle of the corner reflector is arranged at the tail end of the longitudinal fixed rod. When the corner reflector is used, the angles of the transverse fixing rod and the longitudinal fixing rod are attached to the bottom surface of the corner reflector, the plane where the positioning plate is located is attached to the bottom edge of the corner reflector, and the left telescopic rod and the right telescopic rod are abutted to the left inner wall surface and the right inner wall surface of the corner reflector. The utility model discloses a fix three-dimensional electron compass on angle measurement device and measure the azimuth angle, the pitch angle of corner reflector, supplementary angle of adjusting corner reflector, it is simple accurate, reduced the produced error of traditional visual telemetering method and the time that consumes, improved work efficiency and regulation precision.
Description
Technical Field
The utility model belongs to the technical field of synthetic aperture radar interferometry, concretely relates to an angle measurement device for CR-InSAR corner reflector.
Background
Synthetic aperture radar (SAR for short) is an active microwave sensor developed in the late 50 s of the 20 th century and is one of the most rapidly and effectively developed sensors. As an active sensor, the device can realize all-time and all-weather ground observation without the limitation of illumination and weather conditions, and can acquire the information under the ground surface through the ground surface and vegetation. The characteristics make it have unique advantages in the fields of agriculture, forestry, geology, environment, hydrology, disasters, mapping and military, and especially have important application value in the areas where the traditional optical sensor is difficult to image.
The Synthetic Aperture Radar (interferometric Synthetic Aperture Radar, InSAR for short) technology is a product of the combination of the traditional SAR and the interferometric measurement technology in radio astronomy. The basic principle is that the phase difference between two SAR images corresponding to the same target and having certain coherence and the geometric relation between the radar and the target during imaging are utilized to obtain large-range and high-precision ground surface three-dimensional information and ground surface deformation information. The InSAR technology for obtaining the surface micro-deformation is also called as DInSAR, and compared with other discrete point measurement technologies, the observation result of the InSAR technology has the advantage of space continuous coverage.
The CR-InSAR (receiver interference Synthetic Aperture radius) technology is generated along with the continuous development of the InSAR technology, and can acquire surface deformation information with millimeter-scale precision. The CR-InSAR is characterized in that a certain number of artificial Corner Reflectors (CR) with uniform sizes and specifications are distributed in an area to be measured in advance, the corner reflectors are fixed in position, the reflection of radar waves is strong, the amplitude and the phase of the artificial corner reflectors on an SAR image are stable, the CR-InSAR can be used for monitoring tiny and slow surface deformation, high coherence can be kept after several years, and monitoring can be carried out even under the conditions of large space baseline and long time baseline. The CR technology has the advantages of high precision and long-term continuous monitoring, and millimeter-level displacement in a certain time period can be accurately measured by the CR technology.
In a broad sense, all objects that can produce a corner reflection effect can be referred to as corner reflectors. Among them, the corner reflector having a standard geometry and a strict size is an artificial corner reflector. Most of the artificial corner reflectors are made of metal materials and need to keep an optimal included angle with the incident direction of radar waves. The following shapes are the following in common artificial corner reflector: the dihedral corner reflector and the trihedral corner reflector may be further classified into a triangular pyramid corner reflector, a square corner reflector, etc. in the shape of a single face. The artificial corner reflector utilizes the corner reflection effect due to the regular geometric shape, and forms a strong echo signal after the received radar beam is reflected for several times, so that a bright pattern spot is formed in the obtained SAR image and can be accurately identified on the radar image.
Corner reflectors are broadly classified into two types: fixed and adjustable. The fixed corner reflector consists of a metal support and a corner reflector, is fixed on a cement base through bolts, and cannot adjust the azimuth and elevation of the corner reflector after being installed. The adjustable corner reflector consists of a rotating support and an adjustable supporting rod, the azimuth and the elevation of the corner reflector can be adjusted after installation, but the adjustment process needs to be carried out by means of external azimuth and angle measuring equipment, and the operation is complex.
In practical application, the angle reflector with a good effect has strict requirements on the directivity of incident radar waves, so that when InSAR measurement is carried out, the azimuth angle and the elevation angle of the angle reflector must be adjusted to achieve the optimal included angle with the incident radar waves. In addition, as the number of satellites providing SAR data increases, in order to perform InSAR measurement more accurately and efficiently, a plurality of satellite data multi-angle InSAR data are often used for joint solution, and since the incident angle of a radar wave changes frequently, in order to obtain the optimal incident angle of the radar wave and an angular reflection device, the azimuth angle and the elevation angle of an angular reflector need to be adjusted frequently correspondingly, so as to achieve the optimal effect.
However, due to the limitations of materials and adjustment and measurement methods, it is difficult to adjust the angle of the conventional angle reflection device to achieve the desired effect. On one hand, the corner reflector is mostly made of magnetic materials, and when the compass is used for adjusting and measuring, the compass and the corner reflector to be measured need to keep a distance of more than 0.5 m so as not to be influenced. However, because a special angle measuring device is lacked to assist the corner reflector in accurate angle adjustment, in the prior art, when the azimuth angle and the elevation angle of the corner reflector are adjusted, an operator usually only holds the compass by hand, and estimates the distance and the angle between the compass and the corner reflector by adopting a visual telemetering mode, and the adjusting mode is simple, the manual error is large, the measuring precision is low, and the corner reflector and the incident radar wave are difficult to form an optimal included angle. On the other hand, when the optimal radar wave incidence angle adjustment needs to be performed on a plurality of corner reflectors, the adjustment and measurement work takes longer time, and the work efficiency is low.
Therefore, there is a need for an angle measuring device for a CR-InSAR corner reflector to assist the corner reflector to perform more precise and rapid angle adjustment so that the radar wave forms an optimal incident angle with the corner reflector.
The three-dimensional electronic compass adopts a sensor group consisting of a three-axis magnetoresistive sensor, a three-axis acceleration sensor and a three-axis gyroscope sensor, takes a processor as a core, and is externally assisted by a display screen, a keyboard, power management and the like. The geomagnetic field intensity is obtained through the magnetic resistance sensor, the gravity acceleration is obtained through the acceleration sensor, the angular velocity is obtained through the gyroscope, the original data of the three sensors are resolved through the filtering, compensation and data fusion posture of the processor, and finally the azimuth angle, the roll angle and the pitch angle are obtained and displayed on the screen in real time. Because of having the inclination compensation function, three-dimensional electronic compass has very big advantage than plane electronic compass, when measuring the azimuth, need not keep the horizontal placement of equipment and also can obtain accurate measured data.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides an angle measurement device for CR-InSAR corner reflector to solve the problem that lacks the angle measurement device that special supplementary corner reflector carried out accurate angular adjustment that exists among the prior art.
(II) technical scheme
In order to achieve the above object, the utility model discloses a main technical scheme include:
the utility model provides an angle measuring device for a CR-InSAR corner reflector, which comprises a transverse fixed rod and a longitudinal fixed rod, wherein the transverse fixed rod and the longitudinal fixed rod are mutually vertical and fixed together; the longitudinal fixing rod equally divides the transverse fixing rod;
a positioning plate which can move up and down along the longitudinal fixing rod is arranged on the longitudinal fixing rod and below the transverse fixing rod, and the plane of the positioning plate is always vertical to the longitudinal fixing rod;
the two ends of the transverse fixing rod are respectively provided with a left telescopic rod and a right telescopic rod, when the angle measuring device is used, the transverse fixing rod is abutted against the left inner wall surface and the right inner wall surface of the corner reflector through the left telescopic rod and the right telescopic rod at the two ends of the transverse fixing rod, and meanwhile, the longitudinal fixing rod is perpendicular to the bottom edge of the corner reflector by utilizing the positioning plate; the transverse fixing rod and the longitudinal fixing rod are attached to the bottom surface of the corner reflector;
when the transverse fixing rod is abutted against the left inner wall surface and the right inner wall surface of the corner reflector, the plane of the positioning plate is attached to the bottom edge of the corner reflector;
and a three-dimensional electronic compass is arranged at the tail end of the longitudinal fixed rod, the direction of the three-dimensional electronic compass is parallel to the longitudinal fixed rod, and the three-dimensional electronic compass is used for measuring the azimuth angle and the elevation angle of the corner reflector.
According to the utility model, the end of the longitudinal fixing rod far away from the transverse fixing rod is provided with the longitudinal telescopic rod, and the longitudinal telescopic rod and the longitudinal fixing rod are on the same straight line; the three-dimensional electronic compass is arranged at the tail end of the longitudinal telescopic rod.
According to the utility model discloses, left flexible supporting legs and right flexible supporting legs are installed respectively to the tip of left telescopic link and right telescopic link, and left flexible supporting legs and right flexible supporting legs are the supporting legs of rubber or silica gel material.
According to the utility model, a longitudinal clamping groove is arranged on the longitudinal fixing rod along the axial direction of the longitudinal fixing rod, and an adjusting bolt is arranged in the longitudinal clamping groove and can move up and down in the longitudinal clamping groove;
one end of the left adjusting linkage rod and one end of the right adjusting linkage rod which are equal in length are connected with an adjusting bolt, and the other ends of the left adjusting linkage rod and the right adjusting linkage rod are respectively connected with a left telescopic rod and a right telescopic rod;
when the adjusting bolt moves along the longitudinal clamping groove, the left adjusting linkage rod and the right adjusting linkage rod drive the left telescopic rod and the right telescopic rod to adjust the length, so that the left telescopic rod, the right telescopic rod and the longitudinal fixing rod are clamped in the corner reflector to adapt to corner reflectors of different sizes.
According to the utility model discloses, set up vertical pole adjusting bolt on the vertical telescopic link, vertical telescopic link passes through vertical pole adjusting bolt and adjusts length.
According to the utility model discloses, the material of horizontal dead lever, longitudinal tie pole, left telescopic link, right telescopic link, longitudinal tie pole and locating plate is the non-magnetic aluminum alloy.
(III) advantageous effects
The utility model has the advantages that:
the utility model discloses a fix three-dimensional electron compass on angle measurement device and measure the azimuth angle, the angle of pitch of corner reflector, the supplementary angle of adjusting corner reflector, it is simple quick, accurate reliable, reduced the produced error of traditional visual telemetering measurement and the time that consumes, reduced the operation degree of difficulty, improved work efficiency and regulation precision, measurement reliability and feasibility are strong. Compared with a traditional geological compass and a plane electronic compass, the three-dimensional electronic compass has an inclination angle compensation function, and accurate azimuth angle data can be obtained without keeping the horizontal placement of the corner reflector when the azimuth angle is measured.
The utility model discloses a distance between three-dimensional compass of electron and the corner reflector is adjusted to longitudinal extension pole, guarantees to measure and the influence that the three-dimensional compass of electron can not receive magnetic corner reflector in the accommodation process.
The utility model discloses an angle measuring device is in the use, and horizontal dead lever and longitudinal fixing pole laminating are on corner reflector, and the face of locating plate is laminated with corner reflector's outside mutually, guarantees that longitudinal fixing pole is perpendicular with corner reflector's outside all the time, and three-dimensional electron compass records the azimuth and the angle of pitch is the azimuth and the angle of pitch of being surveyed corner reflector promptly. In addition, the two ends of the left telescopic rod and the right telescopic rod are respectively abutted against the inner walls of the corner reflectors through length adjustment, the relative position fixing of the corner reflectors of the angle measuring device can be ensured, the measurement error caused by sliding cannot occur, and the corner reflectors can be suitable for corner reflectors of various shapes and sizes. When the angle of the measured corner reflector is adjusted, the attaching state of the measuring device is kept, and the measured corner reflector is adjusted to the three-dimensional electronic compass to display the azimuth angle and the pitch angle as required angles.
Drawings
Fig. 1 is a schematic front structural view of the present invention;
fig. 2 is a schematic view of the back structure of the present invention;
fig. 3 is a schematic structural view of the three-dimensional electronic compass of the present invention;
fig. 4 is a schematic diagram of the position relationship between the angle measuring device and the corner reflector in use.
[ description of reference ]
1: a transverse fixing rod; 2: a longitudinal fixing rod; 3: a left telescoping rod; 4: a right telescopic rod; 5: a left flexible support leg; 6: a right flexible support leg; 7: a left adjusting linkage rod; 8: a right adjustment linkage rod; 9: a card slot; 10: adjusting the bolt; 11: positioning plate 12: a longitudinal rod adjusting bolt; 13: a longitudinal telescopic rod; 14: a three-dimensional electronic compass; 15: a three-dimensional electronic compass display screen; 16: a corner reflector.
Detailed Description
For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.
Referring to fig. 1 to 4, the present embodiment provides an angle measuring device for a CR-InSAR corner reflector, which includes a transverse fixing rod 1 and a longitudinal fixing rod 2, wherein the transverse fixing rod 1 and the longitudinal fixing rod 2 are perpendicular to each other and fixed as a whole; the longitudinal fixing rod 2 is perpendicular to and bisects the transverse fixing rod 1.
Two ends of the transverse fixing rod 1 are respectively connected with a left telescopic rod 3 and a right telescopic rod 4; the upper surface of the longitudinal fixing rod 2 is provided with a clamping groove 9, the clamping groove 9 vertically and equally divides the transverse fixing rod 1, an adjusting bolt 10 is arranged in the clamping groove 9, and the adjusting bolt 10 can move up and down in the clamping groove 9.
The adjusting bolt 10 is connected with a left adjusting linkage rod 7 and a right adjusting linkage rod 8 which are equal in length, one ends of the left adjusting linkage rod 7 and the right adjusting linkage rod 8 are connected with the sliding rod adjusting bolt 10, and the other ends of the left adjusting linkage rod 7 and the right adjusting linkage rod 8 are correspondingly connected with the left telescopic rod 3 and the right telescopic rod 4 respectively. The left adjusting linkage rod 7 and the right adjusting linkage rod 8 are respectively used as two waists, and straight lines where the left telescopic rod 3, the right telescopic rod 4 and the transverse telescopic rods are located are used as bottom edges to form an isosceles triangle. The adjusting bolt 10 slides in the clamping groove 9, the left adjusting linkage rod 7 and the right adjusting linkage rod 8 drive the lengths of the left telescopic rod 3 and the right telescopic rod 4 to change, and the shape of the isosceles triangle changes. By adjusting the lengths of the left adjusting linkage rod 7 and the right adjusting linkage rod 8, the lengths of the left telescopic rod 3 and the right telescopic rod 4 are correspondingly changed, and the angle measuring device of the embodiment can be suitable for corner reflectors with different sizes and shapes.
One end of the longitudinal fixing rod 2 is connected with a longitudinal telescopic rod 13, and the longitudinal telescopic rod 13 and the longitudinal fixing rod 2 are on the same straight line.
The longitudinal fixing rod 2 is provided with a positioning plate 11 which can move up and down along the longitudinal fixing rod, and the plane of the positioning plate 11 is always vertical to the long axis of the longitudinal fixing rod 2.
When the angle measuring device of the present embodiment is used, the transverse fixing rod 1 and the longitudinal fixing rod 2 are attached to the inner side of the bottom surface of the corner reflector, and then the positioning plate 11 is adjusted so that the plane of the positioning plate 11 is attached to the bottom edge of the corner reflector. By attaching the transverse fixing rod 1 and the longitudinal fixing rod 2 to the inner side of the corner reflector and attaching the surface where the positioning plate 11 is located to the bottom edge of the corner reflector, the angle measuring device of the embodiment is attached to the corner reflector, the three-dimensional electronic compass 14 is installed at the tail end of the longitudinal telescopic rod 13, the pointing direction of the three-dimensional electronic compass 14 is parallel to the long axis where the longitudinal fixing rod 2 and the longitudinal telescopic rod 13 are located, namely, parallel to the direction where the bottom surface of the corner reflector 16 is located, so that the azimuth angle and the elevation angle of the corner reflector can be truly reflected by the degree of the three-dimensional electronic compass, and the three-dimensional electronic compass 14 can be used for measuring and directly displaying.
Preferably, when in use, the transverse fixing rod 1 and the longitudinal fixing rod 2 of the angle measuring device are attached to the bottom surface of the CR-InSAR corner reflector, the plane where the positioning plate 11 is located is attached to the bottom edge of the CR-InSAR corner reflector, and the longitudinal fixing rod 2 is perpendicular to the bottom edge of the corner reflector; the two ends of the left telescopic rod and the right telescopic rod are respectively abutted against the inner wall of the CR-InSAR corner reflector through length adjustment, so that the angle measuring device can be guaranteed to be integrally clamped in the corner reflector and cannot be displaced relative to the corner reflector, when the angle of the corner reflector needs to be adjusted for many times, an operator only needs to observe the degree of the three-dimensional electronic compass 14 in the measuring process, and the position of the angle measuring device does not need to be frequently corrected.
Specifically, the length of the longitudinal telescopic rod 13 is adjusted through a longitudinal rod adjusting bolt 12 arranged on the longitudinal telescopic rod, and the distance between the three-dimensional electronic compass 14 and the corner reflector 16 can be accurately maintained to be more than 0.5 meter by adjusting the length of the longitudinal telescopic rod 13, so that the magnetic field interference of the magnetic corner reflector on the three-dimensional electronic compass is avoided.
Specifically, the end parts of the left telescopic rod 3 and the right telescopic rod 4 are respectively provided with a left flexible supporting leg 5 and a right flexible supporting leg 6 which are in a semicircular shape, and the left flexible supporting leg 5 and the right flexible supporting leg 6 are made of rubber or silica gel. The semicircular design enables the left flexible supporting foot 5 and the right flexible supporting foot 6 to adapt to various angles on the inner side of the corner reflector, the rubber or silica gel material has the advantages of skid resistance, vibration resistance and abrasion resistance, the stability coefficient of the measuring device can be improved, the influence of vibration on the measuring precision is reduced, and extrusion deformation and scratching of the corner reflector are avoided when the corner reflector is in supporting contact.
Specifically, the transverse fixing rod 1, the longitudinal fixing rod 2, the left telescopic rod 3, the right telescopic rod 4, the longitudinal telescopic rod 13 and the positioning plate 11 in the embodiment are all made of non-magnetic aluminum alloy. The non-magnetic aluminum alloy material has the advantages of low price, light weight, high strength and no magnetism, is easy to carry and not easy to deform in actual use, and cannot generate magnetic field interference on the three-dimensional electronic compass.
Compared with the traditional geological compass and the plane electronic compass, the adopted three-dimensional electronic compass has the tilt angle compensation function, and the bottom surface of the corner reflector is not required to be adjusted to be in a horizontal state firstly when the azimuth angle is measured. After a transverse fixed rod 1, a longitudinal fixed rod 2 and a positioning plate 11 of the angle measuring device are attached to the corner reflector, an azimuth angle and a pitch angle measured by the three-dimensional electronic compass are the azimuth angle and the pitch angle of the measured corner reflector. When the measured corner reflector is adjusted to achieve the optimal incident angle of the radar waves and the corner reflector, the measured corner reflector is adjusted only by keeping the joint state of the angle measuring device and the corner reflector until the three-dimensional electronic compass 14 displays the azimuth angle and the pitch angle as required angles.
The angle measuring device of the embodiment can assist angle adjustment of the corner reflector, so that the corner reflector and radar waves form an optimal incident angle, and the obtained radar signal is strongest. Compared with the existing adjusting and measuring method, the angle measuring device of the embodiment can assist angle adjustment of various types of corner reflectors by measuring the azimuth angle and the elevation angle of the corner reflectors, has the advantages of high measuring precision, high speed, simplicity and convenience in operation and high working efficiency, and is suitable for corner reflectors of various sizes and shapes.
The utility model also provides a use method for CR-InSAR corner reflector's angle measurement device, concrete operating procedure is as follows:
when using the utility model discloses an angle measuring device auxiliary adjustment corner reflector receives radar wave or radar wave's incident angle on the certain direction and changes the back diagonal reflector and adjusts, it is inboard to hug closely 16 bottom surfaces of measured corner reflector with transverse fixing rod 1 and longitudinal fixing rod 2, then sliding location board 11, make it hug closely the bottom surface outside of measured corner reflector 16, at angle measurement and angular adjustment in-process afterwards, remain transverse fixing rod 1 throughout, the laminating of longitudinal fixing rod 2 and corner reflector medial surface and the laminating of locating board 11 place plane and corner reflector 16 bottom surface outside.
Preferably, the adjusting bolt 10 is loosened to slide along the clamping groove 9, the lengths of the left telescopic rod 3 and the right telescopic rod 4 are correspondingly changed, the left flexible supporting foot 5 and the right flexible supporting foot 6 are contacted and clamped with the inner wall of the tested corner reflector 16, and then the cross rod adjusting bolt 10 is fastened.
And then loosening the longitudinal rod adjusting bolt 12, drawing the longitudinal telescopic rod 13 to ensure that the distance between the three-dimensional electronic compass 14 fixed at the tail end of the longitudinal telescopic rod 13 and the measured corner reflector 16 is more than 0.5 m, and fastening the longitudinal rod adjusting bolt 12. At this time, the plane where the long axis of the longitudinal telescopic rod 13 is located is parallel to the bottom surface of the measured corner reflector 16, the long axis of the longitudinal telescopic rod 13 vertically bisects the bottom edge of the bottom surface of the measured corner reflector 16, and the azimuth angle and the pitch angle of the plane where the three-dimensional electronic compass 14 is located are the azimuth angle and the pitch angle of the measured corner reflector 16.
After the fixation and the adjustment are finished, the three-dimensional electronic compass 14 is started, and the azimuth angle and the pitch angle displayed by the three-dimensional electronic compass display screen 15 are the current azimuth angle and the pitch angle of the measured corner reflector 16. Keeping the joint state of the angle measuring device and the corner reflector 16, adjusting the azimuth angle and the elevation angle of the measured corner reflector 16 by an operator, observing the change of the azimuth angle and the elevation angle of the three-dimensional electronic compass display screen 15, and finishing the adjusting process when the required angle is stably displayed.
The utility model discloses an above-mentioned diagonal reflector's azimuth and angle of elevation are adjusted, make the angle reflection device have the simple and convenient accurate regulatory function of easy operation, compare in current device, the utility model discloses can be quick, accurate regulation triangle conical angle reflector's azimuth and angle of elevation need not with the help of external measuring equipment, lower to operating personnel technical requirement, have better suitability in multidata source CR-InSAR measures, work efficiency is higher.
The above embodiments are only for explaining the present invention, and do not constitute the limitation of the protection scope of the present invention, and those skilled in the art can make various changes or modifications within the scope of the claims, all of which belong to the essence of the present invention.
Claims (6)
1. An angle measuring device for a CR-InSAR corner reflector is characterized by comprising a transverse fixing rod (1) and a longitudinal fixing rod (2), wherein the transverse fixing rod (1) and the longitudinal fixing rod (2) are mutually vertical and fixed together; the longitudinal fixing rod (2) equally divides the transverse fixing rod (1);
a positioning plate (11) which can move up and down along the longitudinal fixing rod (2) is arranged on the longitudinal fixing rod (2) and below the transverse fixing rod (1), and the plane of the positioning plate (11) is always vertical to the longitudinal fixing rod (2);
the two ends of the transverse fixing rod (1) are respectively provided with a left telescopic rod (3) and a right telescopic rod (4), when the angle measuring device is used, the transverse fixing rod (1) is abutted against the left inner wall surface and the right inner wall surface of the corner reflector through the left telescopic rod (3) and the right telescopic rod (4) at the two ends of the transverse fixing rod, and meanwhile, the longitudinal fixing rod (2) is perpendicular to the bottom edge of the corner reflector through the positioning plate (11); the transverse fixing rod (1) and the longitudinal fixing rod (2) are attached to the bottom surface of the corner reflector;
when the transverse fixing rod (1) is abutted against the left inner wall surface and the right inner wall surface of the corner reflector, the plane where the positioning plate (11) is located is attached to the bottom edge of the corner reflector;
the three-dimensional electronic compass (14) is installed at the tail end of the longitudinal fixing rod (2), the direction of the three-dimensional electronic compass (14) is parallel to the longitudinal fixing rod (2), and the three-dimensional electronic compass (14) is used for measuring the azimuth angle and the elevation angle of the corner reflector.
2. The angle measuring device of claim 1, characterized in that the end of the longitudinal fixed bar (2) remote from the transverse fixed bar (1) is provided with a longitudinal telescopic bar (13), the longitudinal telescopic bar (13) and the longitudinal fixed bar (2) being in the same line; and the three-dimensional electronic compass (14) is arranged at the tail end of the longitudinal telescopic rod (13).
3. The angle measuring device according to claim 1, wherein the end parts of the left telescopic rod (3) and the right telescopic rod (4) are respectively provided with a left flexible supporting foot (5) and a right flexible supporting foot (6), and the left flexible supporting foot (5) and the right flexible supporting foot (6) are made of rubber or silica gel.
4. The angle measuring device of claim 1, wherein the longitudinal fixing rod (2) is provided with a longitudinal slot (9) along the axial direction thereof, an adjusting bolt (10) is arranged in the longitudinal slot (9), and the adjusting bolt (10) can move up and down in the longitudinal slot (9);
one end of a left adjusting linkage rod (7) and one end of a right adjusting linkage rod (8) which are equal in length are connected with an adjusting bolt (10), and the other ends of the left adjusting linkage rod and the right adjusting linkage rod are respectively connected with a left telescopic rod (3) and a right telescopic rod (4);
when the adjusting bolt (10) moves along the longitudinal clamping groove (9), the left adjusting linkage rod (7) and the right adjusting linkage rod (8) drive the left telescopic rod (3) and the right telescopic rod (4) to adjust the length, so that the left telescopic rod (3), the right telescopic rod (4) and the longitudinal fixing rod (2) are clamped in the corner reflector to adapt to corner reflectors of different sizes.
5. The angle measuring device of claim 1, characterized in that the longitudinal extension rod (13) is provided with a longitudinal rod adjusting bolt (12), and the length of the longitudinal extension rod (13) is adjusted by the longitudinal rod adjusting bolt (12).
6. The angle measuring device of any one of claims 1 to 5, wherein the transverse fixing rod (1), the longitudinal fixing rod (2), the left telescopic rod (3), the right telescopic rod (4), the longitudinal telescopic rod (13) and the positioning plate (11) are made of non-magnetic aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020862997.2U CN212723318U (en) | 2020-05-21 | 2020-05-21 | Angle measuring device for CR-InSAR corner reflector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020862997.2U CN212723318U (en) | 2020-05-21 | 2020-05-21 | Angle measuring device for CR-InSAR corner reflector |
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| CN212723318U true CN212723318U (en) | 2021-03-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115494502A (en) * | 2022-10-10 | 2022-12-20 | 武汉大学 | Method and device for measuring deformation of road slope InSAR |
| CN116008988A (en) * | 2023-02-24 | 2023-04-25 | 中国科学院空天信息创新研究院 | Three-face angle passive scaler for quantitative remote sensing |
-
2020
- 2020-05-21 CN CN202020862997.2U patent/CN212723318U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115494502A (en) * | 2022-10-10 | 2022-12-20 | 武汉大学 | Method and device for measuring deformation of road slope InSAR |
| CN116008988A (en) * | 2023-02-24 | 2023-04-25 | 中国科学院空天信息创新研究院 | Three-face angle passive scaler for quantitative remote sensing |
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