Arch-method reflectivity testing system containing 500*500mm calibration plate

Abstract

The invention provides an arch-method reflectivity test system containing a 500 * 500mm calibration plate, which comprises a base, adjusting seats are arranged on the two sides of the base through supporting mechanisms, rollers are rotatably arranged in the bottom ends of the adjusting seats, arc-shaped rods are movably mounted on the tops of the adjusting seats on the two sides through shaft rods, and the arc-shaped rods are movably mounted on the bottom ends of the adjusting seats through shaft rods. The top ends of the arc-shaped rods on the two sides are installed in a hinged mode, a first sliding sleeve and a second sliding sleeve are installed on the arc-shaped rods on the two sides in a sliding mode respectively, and adjusting mechanisms are arranged at the top ends of the arc-shaped rods on the two sides. By adjusting the supporting mechanism, the arc-shaped rods and the adjusting seats on the two sides can be folded conveniently, so that the size of the system is reduced, the system is convenient to move and transport, and the arranged adjusting mechanism can synchronously adjust the broadband horn antennas on the two sides to ensure that the broadband horn antennas are completely symmetrical; and the system is convenient to calibrate through the bracket and the calibration plate.

Description

Technical Field

[0001] The invention relates to the technical field of bow method reflectivity testing, in particular to a bow method reflectivity testing system comprising a 500×500mm calibration plate. Background Art

[0002] Bow method reflectivity test is a widely used test method for absorbing materials; the bow method reflectivity test system usually includes a bow frame system, a control system, a RF cable, a broadband horn antenna, a thin material test waveguide and other equipment.

[0003] In the prior art, the bow frame system is an integral structure, including a bow frame and a base, which is large in size and inconvenient to move and transport. In addition, the broadband horn antennas are symmetrically installed at both ends of the bow frame through a sliding mechanism. The two broadband horn antennas are controlled by two sets of control systems, which easily lead to deviations in the process of adjusting the broadband horn antennas. The existing domestic bow method reflectivity test system does not have a 500*500mm calibration plate platform, which is inconvenient for calibration.

[0004] To this end, the present invention comprises a bow method reflectivity testing system including a 500×500 mm calibration plate. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a bow method reflectivity testing system including a 500×500mm calibration plate to solve the problems raised in the above-mentioned background technology. The present invention facilitates the folding of the arc rods and adjustment seats on both sides by adjusting the supporting mechanism, thereby reducing the volume of the system and facilitating the movement and transportation of the system. The arranged adjustment mechanism can synchronously adjust the broadband horn antennas on both sides to ensure that the antennas are completely symmetrical; the arranged bracket and calibration plate facilitate the calibration of the system.

[0006] In order to achieve the above-mentioned purpose, the present invention is realized through the following technical scheme: a bow method reflectivity testing system containing a 500×500mm calibration plate, including a base, adjustment seats are arranged on both sides of the base through a supporting mechanism, a roller is rotatably arranged inside the bottom end of the adjustment seat, arc rods are movably installed on the top of the adjustment seats on both sides through an axle rod, the top ends of the arc rods on both sides are hinged to each other, a first sliding sleeve and a second sliding sleeve are slidably installed on the arc rods on both sides, an adjustment mechanism is arranged on the top of the arc rods on both sides, the adjustment mechanism includes a fixed box, a block is fixedly arranged on the bottom of the fixed box, a rotating rod is symmetrically rotatably arranged inside the fixed box, one end of the rotating rod is fixed and wound with a pull rope, one end of the pull rope is respectively fixedly connected to the top of the first sliding sleeve and the second sliding sleeve, an angle line is arranged on the rear end outer wall of the arc rods on both sides, and a calibration plate is arranged on the top of the base through a bracket.

[0007] Furthermore, the support mechanism includes a U-shaped connecting member, a first connecting rod and a second connecting rod, and one end of the first connecting rod is rotatably arranged on both sides of the base through an axle rod.

[0008] Furthermore, a fixing rod is fixedly arranged inside the U-shaped connecting member, the other end of the first connecting rod and one end of the second connecting rod are rotatably mounted on the fixing rod, and the other end of the second connecting rod is movably connected to the side wall of the adjustment seat through an axle rod.

[0009] Furthermore, a pin hole is provided inside one end of the first connecting rod and the second connecting rod which are arranged on the inner side of the U-shaped connecting piece, and pins are installed at both ends of the U-shaped connecting piece and inside the pin hole.

[0010] Furthermore, the first sliding sleeve and the second sliding sleeve are both U-shaped, rollers are rotatably provided on the inner walls of the first sliding sleeve and the second sliding sleeve, and a broadband horn antenna is fixedly provided on one end of the first sliding sleeve and the second sliding sleeve away from the arc rod.

[0011] Furthermore, arc grooves are provided inside the front outer walls of the arc rods on both sides, and the rollers are movably arranged inside the arc grooves.

[0012] Furthermore, a pointer is fixedly provided at one end of the first sliding sleeve and the second sliding sleeve, and the pointer is provided on one side of the angle line.

[0013] Furthermore, a card slot is provided inside the top end of the arc-shaped rods on both sides at the position corresponding to the card block, the card block is carded inside the card slot, and the top end of the arc-shaped rods on both sides is installed inside the bottom end of the fixed box.

[0014] Furthermore, an inner cavity is opened inside the rear end of the fixed box, the other end of the rotating rod is rotatably set inside the inner cavity, a gear is fixedly set on the other end of the rotating rod, the gears on both sides are meshed with each other and set in parallel, a servo motor is fixedly set on the outer wall of the fixed box, and the output shaft of the servo motor is fixedly connected to one end of one of the rotating rods.

[0015] Furthermore, the shape of the bracket is "T"-shaped, the bottom end of the bracket is plugged into the top of the base, the calibration plate is placed on the top of the bracket, the specification of the calibration plate is 500*500mm, and the calibration plate is set at the center of the bow formed by arc rods.

[0016] Beneficial effects of the present invention: The bow method reflectivity testing system containing a 500×500mm calibration plate of the present invention includes a base, an adjustment seat, a roller, an arc rod, an arc groove, a first sliding sleeve, a second sliding sleeve, a broadband horn antenna, an adjustment mechanism, a pull rope, a bracket, a calibration plate, a U-shaped connector, a first connecting rod, a second connecting rod, a pin, a roller, a fixed box, a rotating rod, a block, a slot, an angle line, a pointer, an inner cavity, a gear, and a servo motor.

[0017] 1. The bow method reflectivity test system containing a 500×500mm calibration plate rotates and folds the first connecting rod and the second connecting rod through a U-shaped connecting piece and a fixed rod, so that the second connecting rod drives the adjustment seat to move through the roller and approach the base, and the adjustment seat drives the arc rods on both sides to move through the shaft rod, so that the top ends of the arc rods on both sides rotate with each other, which is convenient for folding the arc rods and the adjustment seat on both sides, thereby reducing the volume of the system and facilitating the movement and transportation of the system; by installing pins between the U-shaped connecting piece, the first connecting rod and the second connection, the U-shaped connecting piece, the first connecting rod and the second connecting rod can be fixed, so that the adjustment seat and the arc rod are supported by the supporting mechanism, thereby improving the stability of the system.

[0018] 2. The bow method reflectivity test system containing a 500×500mm calibration plate drives a rotating rod on one side to rotate through a servo motor, and the rotating rods on both sides rotate in opposite directions through the meshing action of gears. The first sliding sleeve and the second sliding sleeve can be driven to slide on the arc rod at the same time through a pull rope. The first sliding sleeve and the second sliding sleeve drive the broadband horn antenna to move at the same time, ensuring that the broadband horn antennas on both sides are completely symmetrical; the friction between the first sliding sleeve, the second sliding sleeve and the arc rod can be reduced by rollers and arc grooves, thereby facilitating the adjustment of the first sliding sleeve and the second sliding sleeve.

[0019] 3. The bow method reflectivity test system containing a 500×500mm calibration plate can prevent the calibration plate and the sample plate through the set bracket. The 500*500mm calibration plate is convenient for calibrating the system and improving the accuracy of the system test. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The structure diagram of the bow method reflectivity testing system of the present invention including a 500×500 mm calibration plate;

[0021] Figure 2 It is a cross-sectional view of a bow method reflectivity testing system of the present invention including a 500×500 mm calibration plate;

[0022] Figure 3 The bow reflectivity test system of the present invention includes a 500×500mm calibration plate. Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 It is a rear view of the bow method reflectivity testing system of the present invention including a 500×500 mm calibration plate;

[0024] Figure 5 This is a structural diagram of a first sliding sleeve of a bow method reflectivity testing system of the present invention containing a 500×500mm calibration plate;

[0025] Figure 6 The fixed box structure diagram of the bow method reflectivity test system of the present invention containing a 500×500mm calibration plate;

[0026] Figure 7 A top view of a cross-sectional view of a fixed box of a bow method reflectivity test system of the present invention containing a 500×500 mm calibration plate;

[0027] In the figure: 1. base; 2. adjustment seat; 3. roller; 4. arc rod; 5. arc groove; 6. first sliding sleeve; 7. second sliding sleeve; 8. broadband horn antenna; 9. adjustment mechanism; 10. pull rope; 11. bracket; 12. calibration plate; 13. U-shaped connector; 14. first connecting rod; 15. second connecting rod; 16. pin; 17. roller; 18. fixed box; 19. rotating rod; 20. block; 21. slot; 22. angle line; 23. pointer; 24. inner cavity; 25. gear; 26. servo motor. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0029] See also Figures 1 to 7The present invention provides a technical solution: a bow method reflectivity test system containing a 500×500mm calibration plate, comprising a base 1, adjustment seats 2 are arranged on both sides of the base 1 through a supporting mechanism, a roller 3 is rotatably arranged inside the bottom end of the adjustment seat 2, arc rods 4 are movably installed on the top of the adjustment seat 2 on both sides through an axle rod, the top ends of the arc rods 4 on both sides are hingedly installed with each other, a first sliding sleeve 6 and a second sliding sleeve 7 are slidably installed on the arc rods 4 on both sides, an adjustment mechanism 9 is arranged on the top of the arc rods 4 on both sides, and the adjustment mechanism 9 includes a fixed box 18, a block 20 is fixedly arranged on the bottom of the fixed box 18, and the inner part of the fixed box 18 A rotating rod 19 is symmetrically rotated in the part, one end of the rotating rod 19 is fixed and wrapped with a pull rope 10, one end of the pull rope 10 is fixedly connected to the top of the first sliding sleeve 6 and the second sliding sleeve 7 respectively, and an angle line 22 is provided on the rear end outer wall of the arc rod 4 on both sides, and a calibration plate 12 is provided on the top of the base 1 through a bracket 11. The adjustment seat 2 is adjusted by the supporting mechanism to facilitate the folding of the arc rods 4 on both sides, thereby reducing the volume of the system and facilitating the movement and carrying of the system. The first sliding sleeve 6 and the second sliding sleeve 7 are driven to move synchronously by the pull rope 10, which can ensure that the broadband horn antenna 8 is always in a symmetrical state, thereby improving the accuracy of the test results of the system.

[0030] In this embodiment, the support mechanism includes a U-shaped connecting member 13, a first connecting rod 14 and a second connecting rod 15. One end of the first connecting rod 14 is rotatably arranged on both sides of the base 1 through an axle rod. A fixing rod is fixedly arranged inside the U-shaped connecting member 13. The other end of the first connecting rod 14 and one end of the second connecting rod 15 are rotatably mounted on the fixing rod. The other end of the second connecting rod 15 is movably connected to the side wall of the adjustment seat 2 through an axle rod. The first connecting rod 14 and the second connecting rod 15 are arranged inside one end of the inner side of the U-shaped connecting member 13. A pin hole is provided in the part, and pins 16 are installed at both ends of the U-shaped connecting piece 13 and inside the pin hole. The first connecting rod 14 and the second connecting rod 15 can be rotated and folded inside the U-shaped connecting piece 13 through the fixing rod, so as to facilitate the adjustment of the adjustment seat 2 toward the direction of the base 1; by installing the pin 16 inside the first connecting rod 14, the second connecting rod 15 and the U-shaped connecting piece 13, the first connecting rod 14, the second connecting rod 15 and the U-shaped connecting piece 13 can be fixed therebetween, so as to facilitate the support of the adjustment seat 2, thereby improving the stability of the system.

[0031] In this embodiment, the first sleeve 6 and the second sleeve 7 are both U-shaped, and rollers 17 are rotatably provided on the inner walls of the first sleeve 6 and the second sleeve 7. A broadband horn antenna 8 is fixedly provided on one end of the first sleeve 6 and the second sleeve 7 away from the arc rod 4. An arc groove 5 is provided inside the front outer wall of the arc rod 4 on both sides. The rollers 17 are movably provided inside the arc groove 5. A pointer 23 is fixedly provided at one end of the first sleeve 6 and the second sleeve 7. The pointer 23 is provided on one side of the angle line 22. The friction between the first sleeve 6 and the second sleeve 7 and the arc rod 4 can be reduced by rolling the rollers 17 inside the arc groove 5, so that the first sleeve 6 and the second sleeve 7 can slide on the arc rod 4, and the first sleeve 6 and the second sleeve 7 can drive the pointer 23 to move, so that the pointer 23 points to the corresponding angle line 22, so as to facilitate the adjustment of the position of the first sleeve 6 and the second sleeve 7 according to needs.

[0032] In this embodiment, a slot 21 is provided at the position of the block 20 at the top of the arc rod 4 on both sides, and the block 20 is clamped in the slot 21. The top of the arc rod 4 on both sides is installed in the bottom of the fixed box 18. An inner cavity 24 is provided in the rear end of the fixed box 18. The other end of the rotating rod 19 is rotatably set in the inner cavity 24. A gear 25 is fixedly provided at the other end of the rotating rod 19. The gears 25 on both sides are meshed with each other and arranged in parallel. A servo motor 26 is fixedly provided on the outer wall of the fixed box 18. The output shaft of the servo motor 26 is fixedly connected to one end of one of the rotating rods 19. Through the action of the slot 21 and the block 20, the fixed box 18 can be fixed when the arc rods 4 on both sides are opened, which is convenient for installing the adjustment mechanism 9. Through the action of the servo motor 26, the rotating rod 19 and the gear 25, the pull rope 10 can be wound and released at the same time, which is convenient for subsequent adjustment of the first sliding sleeve 6 and the second sliding sleeve 7.

[0033] In this embodiment, the shape of the bracket 11 is "T"-shaped, and the bottom end of the bracket 11 is plugged and installed on the top of the base 1. The calibration plate 12 is placed on the top of the bracket 11. The specification of the calibration plate 12 is 500*500mm. The calibration plate 12 is arranged at the center of the bow formed by the arc rods 4. The bracket 11 can place the calibration plate 12 and the sample, which is convenient for calibrating the system through the calibration plate 12 and also convenient for testing the sample.

[0034] When using the bow method reflectivity test system containing a 500×500mm calibration plate, the base 1 and the adjustment seat 2 are placed on the bottom plate of the microwave darkroom, and the arc rod 4 is arranged vertically to fix the base 1, and then the U-shaped connecting piece 13 is pressed downward, and the U-shaped connecting piece 13 drives the first connecting rod 14 and the second connecting rod 15 to rotate between the base 1 and the adjustment seat 2 through the fixing rod, and the first connecting rod 14, the U-shaped connecting piece 13 and the second connecting rod 15 push the adjustment seat 2, so that the adjustment seat 2 moves on the bottom plate and away from the base 1 through the roller 3, and the adjustment seat 2 drives the arc rod 4 through the shaft rod, and the arc rods on both sides are pushed. The rods 4 are hinged and rotated to both sides, and their top ends are close to each other. The fixed box 18 is placed on the top of the arc rods 4 on both sides, and the block 20 is placed between the slots 21. As the arc rods 4 rotate, the block 20 is installed inside the slots 21, and the top of the arc rod 4 is installed inside the bottom of the fixed box 18. When the first connecting rod 14 and the second connecting rod 15 are adjusted to the same horizontal plane, the pin 16 is inserted into the pin hole and the inside of the U-shaped connecting member 13, so that the U-shaped connecting member 13, the first connecting rod 14 and the second connecting rod 15 can be fixed by the pin 16, so that the support mechanism can support the base 1 and the adjustment seat 2. , to improve the stability of the system, the arc-shaped rods 4 on both sides are combined to form a bow-shaped frame, and one end of the pull ropes 10 on both sides are fixedly connected to the top of the first sliding sleeve 6 and the second sliding sleeve 7 respectively, and the counterweight blocks are arranged at the bottom ends of the first sliding sleeve 6 and the second sliding sleeve 7 to increase the weight of the first sliding sleeve 6 and the second sliding sleeve 7; the system also includes PC test software and a test console, a vector network analyzer, etc. Before testing the sample, the system is calibrated first, and a 500*500mm calibration plate 12 is placed on the top of the bracket 11, and the servo motor 26 is started. The servo motor 26 drives the rotating rod 19 on one side to rotate, and the two rotating rods 19 are connected by gears. The meshing action of the wheel 25 rotates in the opposite direction, so that the rotating rod 19 can reel in the pull rope 10. The pull rope 10 drives the first sleeve 6 and the second sleeve 7 to move synchronously on the arc rod 4, and drives the roller 17 to roll inside the arc groove 5, which can reduce the friction between the first sleeve 6 and the second sleeve 7 and the arc rod 4. The first sleeve 6 and the second sleeve 7 drive the broadband horn antenna 8 and the pointer 23 to move, so that the pointer 23 points to the symmetrical angle line 22 on the arc rod 4. The broadband horn antenna 8 is connected to a vector network analyzer through a feeder cable. During testing, the sample is directly placed on the top of the bracket 11 and a reflectivity test is performed.

[0035] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A bow reflectivity test system with a 500×500 mm calibration plate, comprising a base (1), characterized in that: Adjustment seats (2) are arranged on both sides of the base (1) through a supporting mechanism, a roller (3) is rotatably arranged inside the bottom of the adjustment seat (2), arc-shaped rods (4) are movably mounted on the top of the adjustment seats (2) on both sides through shafts, the tops of the arc-shaped rods (4) on both sides are hingedly mounted to each other, a first sliding sleeve (6) and a second sliding sleeve (7) are slidably mounted on the arc-shaped rods (4) on both sides, and an adjustment mechanism (9) is arranged on the top of the arc-shaped rods (4) on both sides, and the adjustment mechanism (9) includes a fixing box (18), a clamping block (20) is fixedly provided at the bottom of the fixed box (18), a rotating rod (19) is symmetrically rotated inside the fixed box (18), one end of the rotating rod (19) is fixed and wound with a pull rope (10), one end of the pull rope (10) is fixedly connected to the top of the first sliding sleeve (6) and the top of the second sliding sleeve (7), respectively, and angle lines (22) are provided on the rear end outer walls of the arc rods (4) on both sides, and a calibration plate (12) is provided on the top of the base (1) through a bracket (11).

2. The bow method reflectivity test system comprising a 500×500 mm calibration plate according to claim 1, characterized in that: The support mechanism comprises a U-shaped connecting piece (13), a first connecting rod (14) and a second connecting rod (15); one end of the first connecting rod (14) is rotatably arranged on both sides of the base (1) via an axle.

3. The bow method reflectivity test system comprising a 500×500 mm calibration plate according to claim 2, characterized in that: A fixing rod is fixedly arranged inside the U-shaped connecting piece (13); the other end of the first connecting rod (14) and one end of the second connecting rod (15) are rotatably mounted on the fixing rod; the other end of the second connecting rod (15) is movably connected to the side wall of the adjustment seat (2) via a shaft rod.

4. The bow method reflectivity test system comprising a 500×500 mm calibration plate according to claim 3, characterized in that: The first connecting rod (14) and the second connecting rod (15) are arranged on one end of the inner side of the U-shaped connecting piece (13) and have a pin hole formed inside. Pins (16) are installed at both ends of the U-shaped connecting piece (13) and inside the pin hole.

5. The bow method reflectivity test system comprising a 500×500 mm calibration plate according to claim 1, characterized in that: The first sliding sleeve (6) and the second sliding sleeve (7) are both U-shaped, rollers (17) are rotatably arranged on the inner walls of the first sliding sleeve (6) and the second sliding sleeve (7), and a broadband horn antenna (8) is fixedly arranged on one end of the first sliding sleeve (6) and the second sliding sleeve (7) away from the arc rod (4).

6. The bow method reflectivity test system comprising a 500×500 mm calibration plate according to claim 5, characterized in that: The front outer walls of the arc-shaped rods (4) on both sides are provided with arc-shaped grooves (5), and the rollers (17) are movably arranged inside the arc-shaped grooves (5).

7. The bow method reflectivity test system comprising a 500×500 mm calibration plate according to claim 6, characterized in that: A pointer (23) is fixedly provided at one end of the first sliding sleeve (6) and the second sliding sleeve (7), and the pointer (23) is arranged on one side of the angle line (22).

8. The bow method reflectivity test system comprising a 500×500 mm calibration plate according to claim 1, characterized in that: A clamping groove (21) is provided inside the top end of the arc-shaped rod (4) on both sides at a position corresponding to the clamping block (20), and the clamping block (20) is clamped inside the clamping groove (21). The top end of the arc-shaped rod (4) on both sides is installed inside the bottom end of the fixed box (18).

9. The bow method reflectivity test system comprising a 500×500 mm calibration plate according to claim 8, characterized in that: An inner cavity (24) is provided at the rear end of the fixed box (18), the other end of the rotating rod (19) is rotatably arranged inside the inner cavity (24), a gear (25) is fixedly arranged at the other end of the rotating rod (19), the gears (25) on both sides are meshed with each other and arranged in parallel, a servo motor (26) is fixedly arranged on the outer wall of the fixed box (18), and the output shaft of the servo motor (26) is fixedly connected to one end of one of the rotating rods (19).

10. The bow method reflectivity test system comprising a 500×500 mm calibration plate according to claim 1, characterized in that: The bracket (11) is in a "T" shape, the bottom end of the bracket (11) is plugged and installed on the top of the base (1), the calibration plate (12) is placed on the top of the bracket (11), the specification of the calibration plate (12) is 500*500mm, and the calibration plate (12) is set at the center of the bow formed by the arc rods (4).

Images