Bow reflectivity test system with 500×500mm calibration plate

Abstract

The present invention provides a bow method reflectivity testing system including a 500×500mm calibration plate, comprising a base, with adjustment seats provided on both sides of the base via a support mechanism, a roller rotatably provided within the bottom end of the adjustment seat, curved rods movably mounted on the tops of the adjustment seats on both sides via shafts, the top ends of the curved rods on both sides being hingedly mounted to each other, a first sliding sleeve and a second sliding sleeve slidably mounted on the curved rods on both sides, and adjustment mechanisms provided on the top ends of the curved rods on both sides. Adjustment of the support mechanism facilitates folding of the curved rods and adjustment seats on both sides, thereby reducing the volume of the system and facilitating its movement and transportation. Furthermore, the provided adjustment mechanism can synchronously adjust the broadband horn antennas on both sides to ensure complete symmetry of the broadband horn antennas. The provided bracket and calibration plate facilitate calibration of the system.

Description

Technical Field

[0001] The present 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 reflectivity testing is a widely used method for testing absorbing materials. Bow reflectivity testing systems typically include a bow system, a control system, RF cables, broadband horn antennas, and thin material testing waveguides.

[0003] In the prior art, the bow frame system is an integral structure, including a bow frame and a base. It 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 during the adjustment process of 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 includes 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 existing technology, the purpose of the present invention is to provide a bow method reflectivity testing system containing a 500×500mm calibration plate to solve the problems raised in the above 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 set adjustment mechanism can synchronously adjust the broadband horn antennas on both sides to ensure that the antennas are completely symmetrical; the set bracket and calibration plate facilitate the calibration of the system.

[0006] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a bow method reflectivity testing system containing a 500×500mm calibration plate, including a base, adjustment seats are provided on both sides of the base through a supporting mechanism, a roller is provided for rotation inside the bottom end of the adjustment seat, and an arc rod is movably installed on the top of the adjustment seat on both sides through an axle rod, and the top ends of the arc rods on both sides are hinged to each other, and a first sliding sleeve and a second sliding sleeve are respectively slidably installed on the arc rods on both sides, and an adjustment mechanism is provided on the top ends of the arc rods on both sides, and the adjustment mechanism includes a fixed box, a block is fixedly provided at the bottom of the fixed box, and a rotating rod is symmetrically rotated inside the fixed box, one end of the rotating rod is fixed and wrapped with a pull rope, and one end of the pull rope is fixedly connected to the top ends of the first sliding sleeve and the second sliding sleeve respectively, an angle line is provided on the rear end outer wall of the arc rods on both sides, and a calibration plate is provided 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 provided 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 opened 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-shaped grooves are provided inside the front outer walls of the arc-shaped rods on both sides, and the rollers are movably arranged inside the arc-shaped 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 slot is provided inside the top end of the arc-shaped rods on both sides at the position corresponding to the block, the block is clamped inside the 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, and a gear is fixedly set on the other end of the rotating rod. The gears on both sides are engaged 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] The 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 the U-shaped connecting piece and the 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 facilitates the folding of 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, thereby facilitating the support of the adjustment seat and the arc rod through the support mechanism, thereby improving the stability of the system.

[0018] 2. This bow reflectivity test system, which includes a 500×500mm calibration plate, uses a servo motor to drive the rotation of one rotating rod. The two rotating rods rotate in opposite directions through the meshing action of gears. A pull rope can simultaneously drive the first and second sliding sleeves to slide on the curved rod. The first and second sliding sleeves simultaneously drive the broadband horn antennas to move, ensuring that the broadband horn antennas on both sides are completely symmetrical. The rollers and arc grooves can reduce friction between the first and second sliding sleeves and the curved rod, thereby facilitating the adjustment of the first and second sliding sleeves.

[0019] 3. The bow reflectivity test system containing a 500×500mm calibration plate can prevent the calibration plate and the sample through the provided 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 2 is a structural diagram of a bow method reflectivity testing system including a 500×500 mm calibration plate according to the present invention;

[0021] Figure 2 4 is a cross-sectional view of a bow method reflectivity testing system including a 500×500 mm calibration plate according to the present invention;

[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 2 is a rear view of the bow reflectivity test 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 the bow method reflectivity testing system of the present invention containing a 500×500 mm calibration plate;

[0025] Figure 6 FIG1 is a structural diagram of a fixed box of a bow method reflectivity test system containing a 500×500 mm calibration plate according to the present invention;

[0026] Figure 7 1. A top 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 slide sleeve; 7. Second slide 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 easier to understand, the present invention is further described 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, an adjustment seat 2 is provided on both sides of the base 1 through a supporting mechanism, a roller 3 is provided inside the bottom end of the adjustment seat 2 for rotation, an arc rod 4 is movably installed on the top of the adjustment seat 2 on both sides through an axis, 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 respectively slidably installed on the arc rods 4 on both sides, an adjustment mechanism 9 is provided on the top end of the arc rods 4 on both sides, the adjustment mechanism 9 includes a fixed box 18, a clamping block 20 is fixedly provided at the bottom of the fixed box 18, and the inner A rotating rod 19 is provided for symmetrical rotation, 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 slide 6 and the second slide 7 respectively, and an angle line 22 is provided on the rear end outer wall of the arc rod 4 on both sides. 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 support 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 slide 6 and the second slide 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 connector 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 axis rod. A fixed rod is fixedly arranged inside the U-shaped connector 13. The other end of the first connecting rod 14 and one end of the second connecting rod 15 are rotatably mounted on the fixed rod. The other end of the second connecting rod 15 is movably connected to the side wall of the adjustment seat 2 through an axis 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 connector 13. A pin hole is provided in the part, and pins 16 are installed at both ends of the U-shaped connector 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 connector 13 through the fixing rod, so as to facilitate the adjustment of the adjustment seat 2 toward the base 1; by installing the pin 16 inside the first connecting rod 14, the second connecting rod 15 and the U-shaped connector 13, the first connecting rod 14, the second connecting rod 15 and the U-shaped connector 13 can be fixed together, 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 the 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, and 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, and the pointer 23 is provided on one side of the angle line 22. By rolling the rollers 17 inside the arc groove 5, the friction between the first sleeve 6 and the second sleeve 7 and the arc rod 4 can be reduced, 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, which is convenient for adjusting the position of the first sleeve 6 and the second sleeve 7 as needed.

[0032] The top ends of the arc rods 4 on both sides are provided with card slots 21 at the positions of the card blocks 20, and the card blocks 20 are engaged with the inside of the card slots 21. The top ends of the arc rods 4 on both sides are mounted on the inside of the bottom ends of the fixed box 18, and the inside of the rear end of the fixed box 18 is provided with an inner cavity 24. The other end of the rotating rod 19 is rotatably set inside the inner cavity 24, and the other end of the rotating rod 19 is fixedly provided with a gear 25. 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, and 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 card slots 21 and the card blocks 20, the fixed box 18 can be fixed when the arc rods 4 on both sides are opened, which is convenient for the installation of the adjustment mechanism 9. The pull rope 10 can be wound and released at the same time through the action of the servo motor 26, the rotating rod 19 and the gear 25, which is convenient for the subsequent adjustment of the first slide 6 and the second slide 7.

[0033] In this embodiment, the shape of the bracket 11 is "T"-shaped, and the bottom end of the bracket 11 is plugged into 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 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 set vertically to fix the base 1, and then the U-shaped connector 13 is pressed downward. The U-shaped connector 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 fixed rod, and the adjustment seat 2 is pushed by the first connecting rod 14, the U-shaped connector 13 and the second connecting rod 15, so that the adjustment seat 2 moves on the bottom plate and away from the base 1 through the roller 3. The adjustment seat 2 drives the arc rod 4 through the shaft, and the arcs on both sides are rotated. The rods 4 are hinged and rotated to both sides, and their top ends are close to each other. The fixing 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 fixing 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 connector 13, so that the U-shaped connector 13, the first connecting rod 14 and the second connecting rod 15 are 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 frame, and one end of the pull ropes 10 on both sides is fixedly connected to the top of the first sliding sleeve 6 and the second sliding sleeve 7 respectively. The counterweight blocks are set 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. 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 a gear. 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 the vector network analyzer through a feeder cable. During the test, the sample is placed directly on the top of the bracket 11 and the 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 will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims, not the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be included within the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0036] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method 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 can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A bow reflectivity test system comprising a 500×500 mm calibration plate, comprising a base (1), characterized in that: The base (1) is provided with an adjustment seat (2) on both sides through a supporting mechanism, and a roller (3) is provided for rotation inside the bottom end of the adjustment seat (2). The top of the adjustment seat (2) on both sides is movably provided with an arc rod (4) through a shaft, and the top ends of the arc rods (4) on both sides are hingedly installed with each other, and a first sliding sleeve (6) and a second sliding sleeve (7) are slidably installed on the arc rods (4) on both sides, and an adjustment mechanism (9) is provided on the top end of the arc rods (4) on both sides. The adjustment mechanism (9) includes a fixed box (18), and a clamping block (20) is fixedly provided at the bottom of the fixed box (18). 8) is provided with a rotating rod (19) for symmetrical rotation inside, 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 second sliding sleeve (7), respectively, and angle lines (22) are provided on the rear end outer walls of the arc-shaped rods (4) on both sides, and a calibration plate (12) is provided on the top of the base (1) through a bracket (11), and a broadband horn antenna (8) is fixedly provided on one end of the first sliding sleeve (6) and the second sliding sleeve (7) away from the arc-shaped rods (4), and the calibration plate (12) is provided at the center of the bow formed by the arc-shaped rods (4).

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 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) via an axle.

3. The bow method reflectivity testing system comprising a 500×500 mm calibration plate according to claim 2, wherein: A fixing rod is fixedly provided 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) via a shaft.

4. The bow method reflectivity testing 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 therein. Pins (16) are installed at both ends of the U-shaped connecting piece (13) and inside the pin hole.

5. The bow method reflectivity testing 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, and rollers (17) are rotatably provided on the inner walls of the first sliding sleeve (6) and the second sliding sleeve (7).

6. The bow method reflectivity testing system comprising a 500×500 mm calibration plate according to claim 5, characterized in that: An arc-shaped groove (5) is provided inside the front outer wall of the arc-shaped rod (4) on both sides, and the roller (17) is movably arranged inside the arc-shaped groove (5).

7. The bow method reflectivity testing 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 provided on one side of the angle line (22).

8. The bow method reflectivity testing system comprising a 500×500 mm calibration plate according to claim 1, wherein: 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 testing system comprising a 500×500 mm calibration plate according to claim 8, characterized in that: An inner cavity (24) is provided inside the rear end of the fixed box (18), and the other end of the rotating rod (19) is rotatably arranged inside the inner cavity (24). A gear (25) is fixedly provided at the other end of the rotating rod (19), and 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), 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 testing system comprising a 500×500 mm calibration plate according to claim 1, characterized in that: The bracket (11) is in a "T" shape, 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), and the specification of the calibration plate (12) is 500*500mm.

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