Acousto-optic crystal electrical property detection device

Abstract

The utility model relates to the technical field of detection equipment, in particular to an acousto-optic crystal electrical property detection device which comprises a clamping base and a lifting base arranged on the clamping base. A self-adaptive ejector pin is arranged on the lifting seat; the self-adaptive ejector pin comprises a spring element and an ejector pin part used for being electrically connected with a radio frequency line. The lifting seat is provided with a mounting hole, the ejector pin part is inserted into the mounting hole, one end abuts against the spring element, and the other end is provided with a hemispherical contact part; wherein the arrangement direction of the self-adaptive ejector pin is parallel to the plane where the clamping base is located, the lifting base is driven to drive the self-adaptive ejector pin to move in the direction perpendicular to the plane where the clamping base is located, the self-adaptive ejector pin and an electrode on the surface of the acousto-optic crystal are located on the same straight line, and the acousto-optic crystal can make the hemisphere contact part make contact with the electrode when being pushed. According to the invention, the radio frequency line can be accurately abutted against the surface electrode, the device is prevented from being scratched, and the safety of the detection process is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of detection equipment, in particular to an electro-optic crystal electrical performance detection device. BACKGROUND

[0002] The surface of the electro-optic crystal is usually plated with a metal material with good electrical conductivity to form a surface electrode. When detecting the electrical parameters of the electro-optic crystal, an operator holds a coaxial cable of a radio frequency line and makes the coaxial cable abut against the surface electrode on the surface of the electro-optic crystal, and then reads the electrical performance of the electro-optic crystal on a vector network analyzer connected with the radio frequency line. Since the surface electrode on the surface of the electro-optic crystal is soft and thin, and the coaxial cable is sharp and rough in appearance, if the operator's hand is unstable during the detection process, there will be shaking. Not only will the surface electrode be scratched, but also the surface of the electro-optic crystal near the surface electrode will be scratched, so the safety is low and there is a risk of damaging the device. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the present application is to provide an electro-optic crystal electrical performance detection device which can make the radio frequency line abut against the surface electrode accurately, avoid scratching the device, and effectively improve the safety of the detection process.

[0004] The embodiments of the present application are implemented as follows:

[0005] The electro-optic crystal electrical performance detection device provided by the embodiments of the present application comprises a clamping base for clamping the electro-optic crystal and a lifting seat arranged on the clamping base; the lifting seat is provided with an adaptive thimble; the adaptive thimble comprises a spring element and a thimble part for electrical connection with the radio frequency line; a mounting hole is formed in the lifting seat, the thimble part is inserted into the mounting hole and one end of the thimble part abuts against the spring element and the other end of the thimble part is provided with a hemispherical contact part; wherein the arrangement direction of the adaptive thimble is parallel to the plane where the clamping base is located, the lifting seat is driven to move the adaptive thimble in the direction perpendicular to the plane where the clamping base is located, the adaptive thimble and the electrode on the surface of the electro-optic crystal are in a straight line, and the electro-optic crystal is pushed to make the hemispherical contact part contact with the electrode.

[0006] As an optional implementation, the clamping base comprises a bottom base and two clamping parts arranged on the bottom base; a containing groove for placing the electro-optic crystal is formed between the two clamping parts, and the extension direction of the containing groove is consistent with the arrangement direction of the thimble part; the bottom base is provided with a sliding groove perpendicular to the containing groove, and the two clamping parts can be arranged along the sliding groove to approach or move away from the electro-optic crystal, so as to adjust the width of the containing groove.

[0007] As an optional implementation, the locking structure further comprises a first screw rod and a locking knob; a first end of the first screw rod is threadedly connected with the clamping part, and a second end of the first screw rod is connected with the locking knob; the locking knob can drive the first screw rod to rotate, and the locking knob is in abutment with the bottom base.

[0008] As an optional implementation, the clamping part comprises a clamping limiting plate which is in surface abutment with the bottom base; the clamping limiting plate is provided with an effective clamping surface which can be in contact with the acousto-optic crystal; and the clamping limiting plate is provided with a relief structure which has a spacing from the surface of the acousto-optic crystal.

[0009] As an optional implementation, the effective clamping surface is close to the bottom base, and the relief structure is away from the bottom base.

[0010] As an optional implementation, the clamping base is provided with a guide column which is perpendicular to the plane in which the clamping base is located; the guide column is provided at an end away from the clamping base with a fixing seat; the fixing seat is provided with a second screw rod which has an extension direction consistent with the extension direction of the guide column; a first end of the second screw rod is connected with the lifting seat, and a second end of the second screw rod is provided with an adjusting knob; the fixing seat is provided with a threaded hole connected with the second screw rod; and the second screw rod is driven to move the lifting seat on the guide column.

[0011] As an optional implementation, the guide column is provided with an elastic member which is compressed to generate an acting force to push the lifting seat away from the clamping base.

[0012] As an optional implementation, the guide column is provided with a first scale which is arranged along the axial direction of the guide column, and is used to measure the distance from the adaptive probe to the surface of the bottom base.

[0013] As an optional implementation, the bottom base is provided with a second scale which is arranged along the extension direction of the sliding groove, and is used to measure the width of the accommodating groove.

[0014] As an optional implementation, the clamping base is provided with a connector mounting seat, and the connector mounting seat is installed with a radio frequency wire which is electrically connected with the adaptive probe.

[0015] The beneficial effects of the embodiments of the present application include:

[0016] The device for detecting the electrical performance of an acousto-optic crystal provided in the embodiments of the present application comprises a clamping base for clamping the acousto-optic crystal and a lifting seat arranged on the clamping base; the lifting seat is provided with an adaptive thimble, and the arrangement direction of the adaptive thimble is perpendicular to the surface of the acousto-optic crystal provided with an electrode. The adaptive thimble comprises a spring element and a thimble part for electrical connection with a radio frequency wire; a mounting hole is arranged on the lifting seat, the thimble part is inserted into the mounting hole and one end of the thimble part is in abutment with the spring element and the other end of the thimble part is provided with a hemispherical contact part; wherein the arrangement direction of the adaptive thimble is parallel to the plane where the clamping base is located, the lifting seat is driven to move the adaptive thimble in the direction perpendicular to the plane where the clamping base is located, the adaptive thimble and the electrode on the surface of the acousto-optic crystal are in a straight line, and the acousto-optic crystal is pushed to make the hemispherical contact part contact the electrode. The embodiments of the present application can realize precise abutment of the adaptive thimble and the electrode on the surface of the acousto-optic crystal, effectively avoid scratches on the surface of the acousto-optic crystal, and improve the safety of the detection process. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0018] Figure 1 FIG. 1 is a structural schematic diagram of the device for detecting the electrical performance of an acousto-optic crystal according to an embodiment of the present application;

[0019] Figure 2 FIG. 2 is a structural schematic diagram of the device for detecting the electrical performance of an acousto-optic crystal according to another embodiment of the present application;

[0020] Figure 3 FIG. 3 is a structural schematic diagram of the device for detecting the electrical performance of an acousto-optic crystal according to another embodiment of the present application;

[0021] Figure 4 FIG. 4 is a structural schematic diagram of the device for detecting the electrical performance of an acousto-optic crystal according to another embodiment of the present application.

[0022] FIG. 1 is a structural schematic diagram of the device for detecting the electrical performance of an acousto-optic crystal according to an embodiment of the present application; DETAILED DESCRIPTION

[0023] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0025] It should be noted that similar reference numerals and letters in the following drawings represent similar items, and therefore, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings. In addition, the terms "first", "second", "third", etc. are only used to distinguish description, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "arrange", "mount", "connect", "connect" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] The surface of the acousto-optic crystal is usually plated with a metal material with good electrical conductivity to form a surface electrode. When detecting the electrical parameters of the acousto-optic crystal, the worker holds the coaxial cable of the radio frequency line and makes the coaxial cable abut against the surface electrode on the surface of the acousto-optic crystal, and then reads the electrical performance of the acousto-optic crystal on the vector network analyzer connected by the radio frequency line. Since the surface electrode on the surface of the acousto-optic crystal is soft and thin, and the coaxial cable is sharp and rough in appearance. If the worker's hand is unstable during the detection process, there will be shaking. Not only will it scratch the surface electrode, but it will also scratch the surface of the acousto-optic crystal near the surface electrode, so the safety is relatively low, and there is a risk of damaging the device.

[0028] To solve the above technical problems, the embodiments of the present application provide an acousto-optic crystal electrical performance detection device.

[0029] Reference Figure 1 , Figure 2As shown, the embodiment of the present application provides a kind of acousto-optic crystal electrical performance detection device, including the clamping base 100 for clamping acousto-optic crystal and the lifting seat 101 being arranged on clamping base 100;Lifting seat 101 is equipped with self-adapting thimble 102;Self-adapting thimble 102 includes spring element 105 and the thimble part 104 for being electrically connected with radio frequency wire;Lifting seat 101 is opened installation hole 103, thimble part 104 is inserted in installation hole 103 and one end is abutted with spring element 105, the other end is equipped with hemispherical contact part 106;Lifting seat 101 is driven and can drive self-adapting thimble 102 move in the direction perpendicular to the plane where clamping base 100 is, self-adapting thimble 102 and the electrode of acousto-optic crystal surface are in a straight line, acousto-optic crystal is pushed and can make hemispherical contact part 106 contact with electrode.

[0030] The acousto-optic crystal electrical performance detection device provided by the embodiment of the present application includes a clamping base 100 for clamping an acousto-optic crystal and a lifting seat 101 arranged on the clamping base 100. The lifting seat 101 of the embodiment of the present application is provided with a self-adapting thimble 102, and the arrangement direction of the self-adapting thimble 102 is perpendicular to the surface on which the acousto-optic crystal is provided with an electrode.

[0031] It should be noted that the clamping base 100 of the embodiment of the present application can be arranged horizontally, that is, the acousto-optic crystal is horizontally mounted on the clamping base 100. The lifting seat 101 is arranged on the clamping base 100 in the embodiment of the present application, and the height of the self-adapting thimble 102 is controlled by the lifting seat 101, so that the self-adapting thimble 102 can be accurately aligned with electrodes of different heights, and the application range of the entire detection device is improved.

[0032] The self-adapting thimble 102 of the embodiment of the present application includes a spring element 105 and a thimble part 104 for electrically connecting with a radio frequency wire.

[0033] It should be noted that one end of the radio frequency wire is electrically connected with the thimble part 104, and the other end of the radio frequency wire is electrically connected with a vector network analyzer. The vector network analyzer is a prior art, and a person skilled in the art can select it according to needs.

[0034] Specifically, referring to Figure 2 As shown, the installation hole 103 is opened on the lifting seat 101 of the embodiment of the present application, the thimble part 104 is inserted into the installation hole 103, one end of the thimble part 104 is abutted with the spring element 105, and the other end is provided with the hemispherical contact part 106. The arrangement direction of the self-adapting thimble 102 is parallel to the plane where the clamping base 100 is located, the lifting seat 101 is driven and can drive the self-adapting thimble 102 to move in the direction perpendicular to the plane where the clamping base 100 is located, the electrode of the acousto-optic crystal surface is in a straight line, and the acousto-optic crystal is pushed and can make the hemispherical contact part 106 contact with the electrode.

[0035] It should be noted that in this embodiment, the contact end between the ejector pin 104 and the electrode is a hemispherical contact portion 106. The hemispherical contact portion 106 enables arc-shaped contact with the surface electrode of the acousto-optic crystal, preventing scratches on the electrode surface caused by the sharpness or roughness of the ejector pin 104. In this embodiment, the spring element 105 enables elastic contact between the ejector pin 104 and the acousto-optic crystal contact portion, preventing rigid collisions that could cause scratches on the acousto-optic crystal surface.

[0036] The embodiments of this application can achieve precise contact between the adaptive pin 102 and the surface electrode of the acousto-optic crystal, effectively avoiding scratches on the surface of the acousto-optic crystal and improving the safety of the detection process.

[0037] Reference Figure 1 , Figure 3 As shown, in one optional embodiment, the clamping base 100 includes a bottom base and two clamping portions 107 disposed on the bottom base; a receiving groove 108 for placing an acousto-optic crystal is formed between the two clamping portions 107, and the extending direction of the receiving groove 108 is consistent with the setting direction of the ejector pin portion 104; the bottom base has a sliding groove 109 perpendicular to the receiving groove 108, and the two clamping portions 107 can move closer to or further away from the acousto-optic crystal along the arrangement path of the sliding groove 109 to adjust the width of the receiving groove 108.

[0038] It should be noted that the clamping base 100 of this application embodiment is provided with two clamping parts 107, and a receiving groove 108 for placing the acousto-optic crystal can be formed between the two clamping parts 107. The width of the receiving groove 108 can be adjusted, so that the detection device can clamp acousto-optic crystals of different sizes, further improving the applicability of this application embodiment.

[0039] In addition, the sliding of the two clamping parts 107 in the slide groove 109 in this embodiment of the application can realize the adjustment of the position of the receiving groove 108. By adjusting the position of the receiving groove 108, the acousto-optic crystal can be adjusted left and right on the clamping base 100, so as to ensure that the electrodes on the acousto-optic crystal can be aligned with the moving trajectory of the adaptive ejector pin 102.

[0040] In other words, the left and right positions of the electrodes are adjusted by adjusting the left and right positions of the receiving groove 108, so that the electrodes are located on the lifting and lowering trajectory of the adaptive ejector pin 102. Then, the adaptive ejector pin 102 achieves precise alignment with the electrodes through lifting and lowering adjustment.

[0041] Compared to the method of staff holding radio frequency wires to test the electrical performance of acousto-optic crystals, the embodiments of this application do not cause scratches on the surface of the acousto-optic crystal due to hand tremors, thus achieving effective protection of the acousto-optic crystal during testing.

[0042] Reference Figure 1、 Figure 3 As shown in FIG. 1, as an optional embodiment, the locking structure further comprises a first screw rod 110 and a locking knob 111; the first end of the first screw rod 110 is threadedly connected with the clamping part 107, and the second end of the first screw rod 110 is connected with the locking knob 111; the locking knob 111 can drive the first screw rod 110 to rotate, and the locking knob 111 abuts against the side surface of the bottom base.

[0043] Further, the embodiment of the present application further comprises a locking structure, through the threaded connection between the first screw rod 110 and the clamping part 107, when the locking knob 111 drives the first screw rod 110 to rotate, the first screw rod 110 and the clamping part 107 are close to or away from each other due to the threaded connection.

[0044] When the locking knob 111 drives the first screw rod 110 to rotate, the first screw rod 110 and the clamping part 107 are close to each other, the locking knob 111 abuts against the side surface of the bottom base, and the locking of the clamping part 107 is realized. When the locking knob 111 drives the first screw rod 110 to rotate, the first screw rod 110 and the clamping part 107 are away from each other, the locking knob 111 is disengaged from the side surface of the bottom base, and at this time the clamping part 107 can realize the sliding adjustment.

[0045] The embodiment of the present application can realize the adjustment of the position of the accommodating groove 108 by respectively adjusting the two clamping parts 107.

[0046] Referring to FIG. 1, Figure 4 As shown in FIG. 1, as an optional embodiment, the clamping part 107 comprises a clamping limiting plate which is attached to the surface of the bottom base; the clamping limiting plate is provided with an effective clamping surface 112 which can contact the acousto-optic crystal; and the clamping limiting plate is provided with a relief structure 113 which has a spacing from the surface of the acousto-optic crystal.

[0047] The clamping limiting plate of the embodiment of the present application is attached to the bottom base, and the attached contact surface is horizontal. The effective clamping surface 112 provided on the clamping limiting plate is perpendicular to the attached contact surface. The embodiment of the present application reduces the area of the effective clamping surface 112 by providing the relief structure 113 on the clamping limiting plate, so as to avoid scratching the light transmission area of the acousto-optic crystal when contacting the acousto-optic crystal.

[0048] The effective clamping surface 112 is close to the bottom base, and the relief structure 113 is away from the bottom base.

[0049] It should be noted that, as shown in FIG. 1, Figure 4 The relief structure 113 of the embodiment of the present application can be a wedge-shaped structure or a stepped structure. In addition, the thickness of the clamping limiting plate can be set to be relatively thin, so that the effective clamping surface 112 only contacts a point of the bottom of the acousto-optic crystal, and a resisting force for preventing the acousto-optic crystal from moving left and right is formed.

[0050] Referring to Figure 3 As shown in the figure, as an optional embodiment, a guide column 114 is arranged on the clamping base 100, and the guide column 114 is perpendicular to the plane where the clamping base 100 is located; a fixed seat 115 is arranged at the end of the guide column 114 away from the clamping base 100; a second screw 116 extending in the same direction as the guide column 114 is arranged on the fixed seat 115, the first end of the second screw 116 is connected with the lifting seat 101, and the second end of the second screw 116 is provided with an adjusting knob 117; a threaded hole connected with the second screw 116 is arranged on the fixed seat 115; the second screw 116 is driven to move the lifting seat 101 on the guide column 114.

[0051] The guide column 114 is sleeved with an elastic member 118, and the elastic member 118 is compressed to generate an action force to push the lifting seat 101 away from the clamping base 100.

[0052] The second screw 116 is threadedly connected with the fixed seat 115, when the adjusting knob 117 drives the second screw 116 to rotate, the lifting seat 101 realizes linear movement on the guide column 114, so as to realize height adjustment of the adaptive needle 102.

[0053] As an optional embodiment, a first scale is arranged on the guide column 114, and the first scale is arranged along the axial direction of the guide column 114, and is used for measuring the distance from the adaptive needle 102 to the surface of the bottom base.

[0054] The bottom base is provided with a second scale, and the second scale is arranged along the extension direction of the sliding groove 109, and is used for measuring the width of the accommodating groove 108.

[0055] It should be noted that the first scale arranged on the guide column 114 can realize height measurement of the adaptive needle 102. The second scale arranged on the bottom base can realize measurement of the position and width of the accommodating groove 108. Since the size data of the to-be-detected acousto-optic crystal is known information, the height of the adaptive needle 102 and the position and width of the accommodating groove 108 can be directly adjusted through the first scale and the second scale, so as to effectively improve the detection efficiency of the acousto-optic crystal.

[0056] Referring to Figure 3 As an optional embodiment, a joint mounting seat 119 is arranged on the clamping base 100, and a radio frequency wire electrically connected with the needle part 104 is mounted on the joint mounting seat 119. The structure mounting seat can reliably fix the radio frequency wire.

[0057] The above descriptions are only the preferred embodiments of the present application, and are not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A device for testing the electrical properties of an acousto-optic crystal, characterized in that, The application relates to a clamping base (100) for clamping an acousto-optic crystal and a lifting seat (101) arranged on the clamping base (100); the lifting seat (101) is provided with an adaptive ejector pin (102); the adaptive ejector pin (102) comprises a spring element (105) and an ejector pin part (104) for electrically connecting with a radio frequency line; a mounting hole (103) is formed in the lifting seat (101), the ejector pin part (104) is inserted into the mounting hole (103) and one end of the ejector pin part (104) is in abutment with the spring element (105), and the other end of the ejector pin part (104) is provided with a hemispherical contact part (106); wherein the arrangement direction of the adaptive ejector pin (102) is parallel to the plane where the clamping base (100) is located, the lifting seat (101) is driven to drive the adaptive ejector pin (102) to move in the direction perpendicular to the plane where the clamping base (100) is located, the adaptive ejector pin (102) is in a straight line with an electrode on the surface of the acousto-optic crystal, and the acousto-optic crystal is pushed to make the hemispherical contact part (106) contact the electrode.

2. The apparatus for detecting electrical properties of an acousto-optic crystal according to claim 1, wherein, The clamping base (100) comprises a bottom base and two clamping parts (107) arranged on the bottom base; a containing groove (108) for placing the acousto-optic crystal is formed between the two clamping parts (107), and the extension direction of the containing groove (108) is consistent with the arrangement direction of the ejector pin part (104); the bottom base is provided with a sliding groove (109) perpendicular to the containing groove (108), and the two clamping parts (107) can be arranged along the sliding groove (109) to approach or move away from the acousto-optic crystal, so as to adjust the width of the containing groove (108).

3. The apparatus of claim 2, wherein the at least one electrode is configured to apply a voltage to the AOC. The application further comprises a locking structure; the locking structure comprises a first screw rod (110) and a locking knob (111); the first end of the first screw rod (110) is in threaded connection with the clamping part (107), the second end of the first screw rod (110) is connected with the locking knob (111); the locking knob (111) can drive the first screw rod (110) to rotate, and the locking knob (111) is in abutment with the bottom base.

4. The apparatus for detecting electrical properties of an acousto-optic crystal according to claim 2, wherein, The clamping part (107) comprises a clamping limiting plate which is attached to the surface of the bottom base; the clamping limiting plate is provided with an effective clamping surface (112) which can contact the acousto-optic crystal; the clamping limiting plate is provided with a relief structure (113) which has a spacing from the surface of the acousto-optic crystal.

5. The apparatus of claim 4, wherein the at least one electrode is configured to apply a voltage to the AOC. The effective clamping surface (112) is close to the bottom base, and the relief structure (113) is away from the bottom base.

6. The apparatus of any one of claims 2-5, wherein the apparatus is configured to apply a voltage to the AOC to cause the AOC to generate an acoustic wave. The clamping base (100) is provided with a guide column (114) perpendicular to the plane where the clamping base (100) is located; the guide column (114) is provided with a fixing seat (115) at the end away from the clamping base (100); the fixing seat (115) is provided with a second screw (116) extending in the same direction as the guide column (114), the first end of the second screw (116) is connected with the lifting seat (101), and the second end of the second screw (116) is provided with an adjusting knob (117); the fixing seat (115) is provided with a threaded hole connected with the second screw (116); the second screw (116) drives the lifting seat (101) to move on the guide column (114).

7. The apparatus of claim 6, wherein the at least one electrode is configured to apply a voltage to the AOC. The guide column (114) is provided with an elastic member (118), which is compressed to generate a force to push the lifting seat (101) away from the clamping base (100).

8. The apparatus of claim 6, wherein the apparatus further comprises a voltage source connected to the first and second electrodes. The guide column (114) is provided with a first scale arranged along the axial direction of the guide column (114) for measuring the distance from the self-adaptive ejector pin (102) to the surface of the bottom base.

9. The apparatus of any one of claims 2-5, wherein the apparatus is configured to measure the electrical properties of the AOC by applying a voltage across the AOC and measuring a current through the AOC. The bottom base is provided with a second scale arranged along the extension direction of the sliding groove (109) for measuring the width of the accommodating groove (108).

10. The apparatus of any one of claims 1-5, wherein the apparatus is configured to measure the electrical properties of the AOC. The clamping base (100) is provided with a joint mounting seat (119), and the joint mounting seat (119) is installed with a radio frequency wire electrically connected with the self-adaptive ejector pin (102).

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