Downward pressure adjustable surface acoustic wave filter testing device
By designing a meter filter testing device including guide rails, limiting components and pressure sensors, the problem of uncontrollable down pressure in the existing test devices is solved, and high accuracy and consistency testing of the meter filter is achieved.
Patent Information
- Application Number
- CN202421204338.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-02-23
- Filing Date
- 2024-05-30
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-05-30
AI Technical Summary
The pressure under pressure of the existing acoustic meter filter testing device is uncontrollable and cannot meet the requirements of test consistency, which affects the test accuracy.
A test device including a bracket, guide rail, pressure sensor, limit assembly and support platform is designed. Through the cooperation of the guide rail and the limiting assembly, the downward stroke of the pressure sensor can be adjusted, thereby achieving controllable pressure on the surface of the detector.
It realizes the accuracy and adjustability of pressure detection of the meter filter, improves the consistency and accuracy of the test, and is suitable for parts to be tested of different types and sizes.
Smart Images
Figure CN222599133U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of testing equipment, in particular to a SAW filter testing device with adjustable down pressure. Background Art
[0002] Surface Acoustic Wave Filter (SAW Filter) is a miniature passive component that uses surface acoustic wave (SAW) for signal processing and is widely used in wireless communications, radar, navigation and other fields.
[0003] During the research and development of the SAW filter, it is necessary to test the SAW filter. However, the existing test device has an uncontrollable downward pressure and cannot meet the test consistency requirements, which seriously affects the test accuracy of the SAW filter.
[0004] Therefore, how to achieve adjustable downward pressure of the existing test device and improve test consistency has become a technical problem that needs to be solved urgently. Utility Model Content
[0005] The main purpose of the utility model is to provide a SAW filter testing device with adjustable downward pressure, aiming to achieve adjustable downward pressure of the existing testing device and improve test consistency.
[0006] In order to achieve the above object, the utility model provides a SAW filter testing device with adjustable downforce, comprising:
[0007] A bracket is provided with a guide rail along the vertical direction;
[0008] A pressure sensor, slidably connected to the guide rail, for detecting the pressure on the surface of the object to be detected;
[0009] a limit assembly, connected to the bracket and located at one side of the guide rail, for adjusting the downward stroke of the pressure sensor so that the pressure of the pressure sensor is adjustable; and
[0010] The supporting platform is connected to the bracket and is located below the pressure sensor, and is used to support the part to be detected.
[0011] In one embodiment of the present application, the limiting component includes:
[0012] A connecting piece connected to the pressure sensor;
[0013] A guide member is provided at one side of the guide rail, the connecting member is slidably connected to the guide member, and a limit buckle is provided at the connection between the connecting member and the guide member; and
[0014] The driving member is used to drive the guide member to move within a predetermined range so that the pressure sensor is close to or away from the object to be detected.
[0015] In one embodiment of the present application, the bracket is L-shaped.
[0016] In one embodiment of the present application, the driving member includes:
[0017] A base connected to the bracket, the base being provided with a through hole, and the guide member passing through the through hole; and
[0018] A rotating handle is connected to the base and can rotate along the connection. The rotating handle is hinged to one end of the guide member and is used to drive the guide member to move up and down.
[0019] In one embodiment of the present application, a support block is provided between the base and the bracket so that the connecting member and the guide member are in the same plane.
[0020] In one embodiment of the present application, a lateral movement module for driving the support platform to move along the X direction is provided below the support platform.
[0021] In one embodiment of the present application, a horizontal module for driving the transverse movement module to move along the Y direction is provided below the transverse movement module.
[0022] With the above technical solution, since the guide rail and the limit assembly are provided, the downward stroke of the pressure sensor can be easily adjusted as needed, thereby adjusting the applied pressure on the surface of the part to be tested. This adjustability makes the system suitable for parts to be tested of different types and sizes. By sliding the pressure sensor to the guide rail, accurate pressure detection can be achieved in the vertical direction. This provides an accurate measurement of the surface pressure of the part to be tested, which helps to achieve accurate testing and analysis. The support platform is connected to the bracket and is located below the pressure sensor to provide stable support for the part to be tested. This ensures the stability and accuracy of the part to be tested during the test and avoids the introduction of errors due to unstable support. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The present invention is described in detail below with reference to specific embodiments and accompanying drawings, wherein:
[0024] Figure 1 This is a schematic structural diagram of the first embodiment of the utility model;
[0025] 10. Bracket; 20. Pressure sensor; 31. Connector; 32. Guide member; 33. Base; 34. Turning handle; 40. Support block; 50. Support platform; 60. Transverse module; 70. Horizontal module; 80. Guide rail. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the following specific embodiments are only used to explain the utility model and do not constitute a limitation on the utility model.
[0027] like Figure 1 As shown, in order to achieve the above purpose, the utility model provides a SAW filter testing device with adjustable downforce, comprising:
[0028] The bracket 10 is provided with a guide rail 80 along the vertical direction;
[0029] A pressure sensor 20 is slidably connected to the guide rail 80 and is used to detect the pressure on the surface of the object to be detected;
[0030] a limit assembly connected to the bracket 10 and located at one side of the guide rail 80, used to adjust the downward stroke of the pressure sensor 20 so that the pressure of the pressure sensor 20 is adjustable; and
[0031] The supporting platform 50 is connected to the bracket 10 and is located below the pressure sensor 20, and is used to support the object to be detected.
[0032] Specifically, the bracket 10 is made of metal material, such as aluminum alloy material, alloy steel material, etc. The bracket 10 made of metal material has the advantages of strong support capacity and wear resistance. Of course, according to the design requirements, the bracket 10 can also be made of other materials, which have the corresponding advantages of the material, and will not be repeated here.
[0033] A guide rail 80 is provided in the vertical direction of the bracket 10, and the guide rail 80 and the bracket 10 are connected in a fixed connection manner, such as welding, integral molding, etc. The guide rail 80 and the bracket 10 are connected in a fixed connection manner, which can improve the connection strength between the guide rail 80 and the bracket 10 and ensure the stability of the guide rail 80 during operation. Of course, according to the design requirements, the guide rail 80 and the bracket 10 can also be connected in a detachable manner, such as screw connection, bolt connection, etc. The detachable connection between the guide rail 80 and the bracket 10 can facilitate the installation and removal of the guide rail 80 and facilitate later maintenance.
[0034] The pressure sensor 20 is slidably connected to the guide rail 80 and can reciprocate along the length direction of the guide rail 80. The pressure sensor 20 uses a sensitive element, such as a strain gauge or a piezoresistive sensor, to convert the pressure applied thereto into a corresponding electrical signal.
[0035] The limiting component is connected to the bracket 10. The limiting component can be a telescopic cylinder, or a component composed of a connecting member 31, a guide member 32, and a driving member.
[0036] When the limit assembly is a telescopic cylinder, the fixed end of the telescopic cylinder is connected to the bracket 10, the telescopic axis of the telescopic cylinder faces the bottom of the bracket 10, and the pressure sensor 20 is slidably connected to the telescopic axis of the telescopic cylinder through the connecting piece 31. The pressure sensor 20 can reciprocate along the length direction of the telescopic cylinder. A limit buckle is provided between the connecting piece 31 and the telescopic axis of the telescopic cylinder. When the pressure sensor 20 moves to a suitable position, the telescopic axis of the telescopic cylinder is locked with the connecting piece 31 through the limit buckle. In this way, under the premise of not adjusting the telescopic stroke of the telescopic cylinder, by adjusting the position of the connecting piece 31 on the telescopic axis of the telescopic cylinder, the downward pressure of the pressure sensor 20 is constant.
[0037] When the limit assembly is an assembly consisting of a connector 31, a guide 32, and a driver. The connector 31 is fixedly connected to the pressure sensor 20, and the other side of the connector 31 is slidably connected to the guide 32, and can reciprocate along the length direction of the guide 32. A limit buckle is provided between the connector 31 and the guide 32. When the pressure sensor 20 moves to a suitable position, the connector 31 and the guide 32 are locked by the limit buckle. One end of the guide 32 is connected to the driver, and the driver drives the guide 32 to rise or fall. The driver can be a drive motor or a manual push-down switch. In this way, the constant downward pressure of the pressure sensor 20 can be achieved by adjusting the position of the connector 31 on the guide 32 without adjusting the telescopic stroke of the guide 32.
[0038] The support platform 50 is connected to the bracket 10. It can be connected to the bracket 10 in a fixed connection or in a detachable manner. It has corresponding effects and will not be described in detail here. The support platform 50 is used to support the part to be detected. The support platform 50 is located below the pressure sensor 20. It can be imagined that in order to facilitate the support of the support platform 50, a limiter can be set on the upper surface of the support platform 50 to limit the part to be detected, thereby avoiding displacement of the part to be detected during the detection process. The limiter can be a limiter column or a limiter notch. Since it is a prior art, it will not be described in detail here.
[0039] By adopting the above technical solution, since the guide rail 80 and the limit assembly are provided, the downward stroke of the pressure sensor 20 can be easily adjusted as needed, thereby adjusting the applied pressure on the surface of the part to be detected. This adjustability makes the system suitable for parts to be detected of different types and sizes. By sliding the pressure sensor 20 to the guide rail 80, accurate pressure detection can be achieved in the vertical direction. This provides an accurate measurement of the surface pressure of the part to be detected, which helps to achieve accurate testing and analysis. The support platform 50 is connected to the bracket 10 and is located below the pressure sensor 20, providing stable support for the part to be detected. This ensures the stability and accuracy of the part to be detected during the test, and avoids the introduction of errors due to unstable support.
[0040] In one embodiment of the present application, the limiting component includes:
[0041] A connecting member 31 connected to the pressure sensor 20;
[0042] A guide member 32 is provided at one side of the guide rail 80, the connecting member 31 is slidably connected to the guide member 32, and a limit buckle is provided at the connection between the connecting member 31 and the guide member 32; and
[0043] The driving member is used to drive the guide member 32 to move within a predetermined range so that the pressure sensor 20 is close to or away from the object to be detected.
[0044] Specifically, the limiting assembly includes: a connecting member 31, a guiding member 32, and a driving member.
[0045] The connecting member 31 is connected to the pressure sensor 20 . The connecting member 31 is made of metal or plastic so that it has strong supporting strength. A through hole is provided on the connecting member 31 , and the guide member 32 passes through the through hole, so that the connecting member 31 can reciprocate along the length direction of the guide member 32 .
[0046] The guide member 32 is located on one side of the guide rail 80. The main function of the guide member 32 is to provide guidance and positioning functions to ensure that the connecting member 31 can slide and move along the guide rail 80. A limit buckle is set between the guide member 32 and the connecting member 31. When the pressure sensor 20 moves to a suitable position, the guide member 32 and the connecting member 31 are locked by the limit buckle.
[0047] The driving member is used to drive the guide member 32 to move within a predetermined range so that the pressure sensor 20 is close to or away from the object to be detected. The driving member can be a manually operated handle, a threaded rod or an electric device, and controls the movement of the guide member 32 by applying force.
[0048] With the above technical solution, the sliding connection between the connecting member 31 and the guide member 32 provides flexibility, so that the pressure sensor 20 can be adjusted and positioned in the vertical direction on the guide rail 80. The presence of the limit buckle ensures a stable connection between the connecting member 31 and the guide member 32, and provides an adjustable limit range to control the downward stroke of the pressure sensor 20.
[0049] In one embodiment of the present application, the bracket 10 is L-shaped.
[0050] Specifically, the bracket 10 is designed to be L-shaped, which is convenient for fixing and installing the supporting platform 50 and the pressure sensor 20. The structure is simple and easy to implement.
[0051] In one embodiment of the present application, the driving member includes:
[0052] A base 33 connected to the bracket 10, wherein the base 33 is provided with a through hole, and the guide member 32 passes through the through hole; and
[0053] The rotating handle 34 is connected to the base 33 and can rotate along the connection. The rotating handle 34 is hinged to one end of the guide member 32 to drive the guide member 32 to move up and down.
[0054] Specifically, the base 33 is connected to the bracket 10. A through hole is provided on the base 33 for the guide member 32 to pass through. The rotating handle 34 is connected to the base 33 and can rotate along the connection. The rotating handle 34 is hingedly connected to one end of the guide member 32 so that the guide member 32 can be driven to move up and down by rotating the rotating handle 34.
[0055] The guide member 32 passes through a through hole on the base 33. One end of the guide member 32 is hingedly connected to a rotating handle 34, so that the rotation of the rotating handle 34 can drive the movement of the guide member 32.
[0056] With the above technical solution, the rotating handle 34 provides a manual control method, so that the operator can easily drive the movement of the guide member 32 and adjust the position of the pressure sensor 20. The base 33 is connected to the bracket 10 through a fixed interface, providing a stable support structure to ensure a stable connection between the connecting member 31 and the guide member 32. The rotation of the rotating handle 34 can accurately control the up and down movement of the guide member 32, so that the pressure sensor 20 can accurately approach or move away from the object to be detected.
[0057] In one embodiment of the present application, a support block 40 is provided between the base 33 and the bracket 10 so that the connecting member 31 and the guiding member 32 are in the same plane.
[0058] By adopting the above technical solution, by setting the support block 40, the connecting member 31 and the guiding member 32 can slide smoothly on the same horizontal plane, which helps to ensure the stability and reliability of the connecting member 31 and the guiding member 32 and improve the precision and accuracy of the entire system.
[0059] In one embodiment of the present application, a lateral movement module 60 for driving the supporting platform 50 to move along the X direction is provided below the supporting platform 50 .
[0060] By adopting the above technical solution, the lateral movement module 60 can control the movement of the support platform 50 in the X direction, thereby achieving accurate positioning. By driving the lateral movement module 60, the support platform 50 can be translated along the X axis at a predetermined distance, so that the pressure sensor 20 can accurately adjust the position and align with the object to be measured.
[0061] In one embodiment of the present application, a horizontal module 70 is provided below the transverse movement module 60 for driving the transverse movement module 60 to move along the Y direction.
[0062] With the above technical solution, the existence of the horizontal module 70 enables the system to move in the Y direction, realizing multi-dimensional position adjustment. Through the coordinated work of the lateral module 60 and the horizontal module 70, the support platform 50 can move precisely in the X and Y directions, realizing more flexible and comprehensive position adjustment.
[0063] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.
Claims
1. A SAW filter test device with adjustable downforce, characterized in that: include: The bracket (10) is provided with a guide rail (80) along the vertical direction; A pressure sensor (20) is slidably connected to the guide rail (80) and is used to detect the pressure on the surface of the object to be detected; a limit assembly connected to the bracket (10) and located on one side of the guide rail (80), and used for adjusting the downward pressing stroke of the pressure sensor (20) so that the pressure of the pressure sensor (20) is adjustable; as well as A supporting platform (50) is connected to the bracket (10) and is located below the pressure sensor (20), and is used to support the object to be detected.
2. The SAW filter test device with adjustable downforce as claimed in claim 1, characterized in that: The limiting component comprises: A connecting member (31), connected to the pressure sensor (20); A guide member (32) is arranged on one side of the guide rail (80), the connecting member (31) is slidably connected to the guide member (32), and a limit buckle is provided at the connection between the connecting member (31) and the guide member (32); and A driving member is used to drive the guide member (32) to move within a predetermined range so as to move the pressure sensor (20) closer to or farther away from the object to be detected.
3. The SAW filter test device with adjustable downforce as claimed in claim 1, characterized in that: The bracket (10) is L-shaped.
4. The SAW filter test device with adjustable downforce as claimed in claim 2, characterized in that: The driving member comprises: A base (33) connected to the bracket (10), wherein the base (33) is provided with a through hole, and the guide member (32) passes through the through hole; and A rotating handle (34) is connected to the base (33) and can rotate along the connection. The rotating handle (34) is hinged to one end of the guide member (32) and is used to drive the guide member (32) to move up and down.
5. The SAW filter test device with adjustable downforce as claimed in claim 4, characterized in that: A support block (40) is provided between the base (33) and the bracket (10) so that the connecting member (31) and the guide member (32) are located in the same plane.
6. The SAW filter test device with adjustable downforce as claimed in any one of claims 1 to 5, characterized in that: A transverse movement module (60) for driving the support platform (50) to move along the X direction is provided below the support platform (50).
7. The SAW filter test device with adjustable downforce as claimed in claim 6, characterized in that: A horizontal module (70) for driving the transverse movement module (60) to move along the Y direction is provided below the transverse movement module (60).