Silicon microphone test tool
By designing a silicon microphone testing fixture and employing a pressure control valve and a full-range speaker, the problem of inaccurate pressure control in existing microphone testing technologies has been solved, thus achieving both accuracy and safety in microphone testing.
Patent Information
- Application Number
- CN202423264452.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2034-12-30
AI Technical Summary
In the prior art, manual microphone testing fixtures cannot effectively control the pressure exerted on the microphone by the pressure fixture, which may lead to inaccurate test performance or damage to the microphone.
A silicon microphone testing fixture was designed, including a stand, a testing platform, a slide rail, a slide block, a test block, a pressure control valve, and a test probe. The pressure control valve effectively controls the downward pressure to prevent microphone deformation or poor contact, and a full-range speaker is used to provide a wide frequency response.
It enables precise testing of microphones, prevents damage caused by excessive force on the microphone, and ensures the accuracy and reliability of test results.
Smart Images
Figure CN223809910U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to silicon microphone acoustic performance detection technical field especially relates to a silicon microphone test tool. BACKGROUND
[0002] Silicon microphone acoustic performance detection is a process of evaluating various acoustic performance indexes of silicon microphone, including but not limited to sensitivity, frequency response, signal-to-noise ratio and other key parameters.
[0003] However, the popular microphone manual test fixture on the market is to use the bottom probe to contact the microphone and complete the test by pressing the fixture, but it cannot effectively control the pressure of the pressing fixture on the microphone, which may cause the microphone to be stressed too large, leading to inaccurate test performance or damaging the microphone. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a silicon microphone test tool, which aims to solve the technical problem that the popular microphone manual test fixture on the market is to use the bottom probe to contact the microphone and complete the test by pressing the fixture, but it cannot effectively control the pressure of the pressing fixture on the microphone, which may cause the microphone to be stressed too large, leading to inaccurate test performance or damaging the microphone.
[0005] To achieve the above purpose, the utility model adopts a silicon microphone test tool, which comprises a vertical plate and a detection platform, the vertical plate is provided with a sliding rail, the sliding rail is provided with a sliding seat, the lower side of the sliding seat is provided with a test block, one side of the test block is provided with a pressure control valve, the test block is provided with a test probe, one end of the test probe is connected with a test circuit board, the detection platform is provided with an acoustic cavity, the acoustic cavity is provided with a full-frequency horn, the end surface of the detection platform is provided with a test carrier and a pressure control position, the middle part of the test carrier is provided with a recess test position, the vertical plate is fixedly connected with the detection platform and located at the end surface of the detection platform, and the test block is located directly above the test carrier.
[0006] Among them, the pressure control valve is one or more combinations of overflow valve, pressure reducing valve, sequence valve and pressure relay.
[0007] Among them, the shape of the test carrier is circular.
[0008] Among them, the silicon microphone test tool further comprises two positioning pins, the end surface of the test carrier is provided with two positioning holes, and the two positioning pins are fixedly connected with the test block and located on both sides of the test block.
[0009] The silicon microphone test tool further comprises two movable racks, an L-shaped handle and a supporting seat, the two movable racks are respectively hinged to the sliding seat and symmetrically arranged above the sliding seat, the two movable racks are respectively hinged to the L-shaped handle and located at the corners of the L-shaped handle, the L-shaped handle is hinged to the supporting seat and located on the supporting seat, the supporting seat is located between the two movable racks, the supporting seat is fixedly connected to the vertical plate and located at one end of the vertical plate away from the sliding rail.
[0010] The handle is provided with an anti-skid sleeve.
[0011] The anti-skid sleeve is made of one or more of natural rubber, thermoplastic polyurethane and thermoplastic rubber.
[0012] The silicon microphone test tool comprises a vertical plate and a detection platform, the vertical plate is provided with a sliding rail, the sliding rail is provided with a sliding seat, the sliding seat is provided with a test block below, one side of the test block is provided with a pressure control valve, the test block is provided with a test probe, one end of the test probe is connected with a test circuit board, the detection platform is provided with an acoustic cavity, the acoustic cavity is provided with a full-frequency loudspeaker, the end surface of the detection platform is provided with a test carrier and a pressure control position, the middle part of the test carrier is provided with a groove test position, the vertical plate is fixedly connected to the detection platform and located at the end surface of the detection platform, and the test block is located directly above the test carrier, the test tool is low in production, simple in operation, convenient to carry, and suitable for use in research and development laboratories and pilot tests by manual testing, so as to effectively control the pressure of the test probe on the MIC and prevent the MIC from being deformed or causing poor contact to cause test abnormalities. BRIEF DESCRIPTION OF DRAWINGS
[0013] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.
[0014] Figure 1 is a three-dimensional view of the silicon microphone test tool of the present application.
[0015] Figure 2 is a three-dimensional view of the silicon microphone test tool of the present application. Figure 1 is a local enlarged view of A in the silicon microphone test tool.
[0016] Figure 3 is a side view of the silicon microphone test tool of the present application.
[0017] Figure 4 is the utility model Figure 3 the section view of B-B line in it.
[0018] Figure 5 is the utility model Figure 4 the partial close -up view of C in it.
[0019] 1-stand plate, 2-detection platform, 3-slideway, 4-slideway, 5-test block, 6-test carrier, 7-pressure control bit, 8-groove test bit, 9-positioning pin, 10-positioning hole, 11-movable frame, 12-L-shaped handle, 13-supporting seat, 14-pressure control valve, 15-test probe, 16-test circuit board, 17-full-frequency loudspeaker, 18-acoustic cavity. DETAILED DESCRIPTION
[0020] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model and cannot be understood as limiting the utility model.
[0021] Please refer to Figures 1 to 5 The utility model provides a kind of silicon microphone test tool, including stand plate 1 and detection platform 2, the stand plate 1 is provided with slideway 3, the slideway 3 is provided with slideway 4, the slideway 4 is provided with test block 5 below, one side of the test block 5 is provided with pressure control valve 14, the test block 5 is provided with test probe 15, one end of the test probe 15 is connected with test circuit board 16, the detection platform 2 has acoustic cavity 18, the acoustic cavity 18 is provided with full-frequency loudspeaker 17, the end surface of the detection platform 2 is provided with test carrier 6 and pressure control bit 7, the middle part of the test carrier 6 has groove test bit 8, the stand plate 1 is fixedly connected with the detection platform 2, and located the end surface of the detection platform 2, and the test block 5 is located directly above the test carrier 6.
[0022] In the embodiment, the test fixture of the design is low, easy to operate, convenient to carry, and manual test is suitable for research and development laboratory and pilot use, so as to effectively control the pressure of the test probe 15 on MIC, prevent MIC from being deformed or contacting abnormally caused by test anomaly, and the full-frequency loudspeaker 17 can provide wide frequency response.
[0023] Further, the pressure control valve 14 is one or more combinations of overflow valve, pressure reducing valve, sequence valve and pressure relay.
[0024] In the embodiment, the pressure control valve 14 can effectively control the pressure degree, so as to avoid damage to the MIC due to excessive pressure and poor contact due to insufficient pressure.
[0025] Further, the test carrier 6 is circular in shape.
[0026] Further, the silicon microphone test tool further comprises two positioning pins 9, and the end surface of the test carrier 6 is provided with two positioning holes 10, and the two positioning pins 9 are fixedly connected to the test block 5 and located on the two sides of the test block 5.
[0027] In the embodiment, the positioning pin 9 and the positioning hole 10 can ensure that the test block 5 and the test carrier 6 can be accurately aligned, so as to ensure that the test probe 15 can accurately contact the MIC test pin.
[0028] Further, the silicon microphone test tool further comprises two movable frames 11, an L-shaped handle 12 and a support seat 13, the two movable frames 11 are hingedly connected to the sliding seat 4 and symmetrically arranged above the sliding seat 4, the two movable frames 11 are hingedly connected to the L-shaped handle 12 and located at the corners of the L-shaped handle 12, the L-shaped handle 12 is hingedly connected to the support seat 13 and located on the support seat 13, the support seat 13 is located between the two movable frames 11, and the support seat 13 is fixedly connected to the vertical plate 1 and located at one end of the vertical plate 1 away from the sliding rail 3.
[0029] In the embodiment, the handle is held and rotated around one end of the support seat 13, so as to drive the two movable frames 11 to push the sliding seat 4, and then the sliding seat 4 moves downward.
[0030] Further, the handle is provided with an anti-skid sleeve.
[0031] In the embodiment, the anti-skid sleeve can improve the grip of the handle, so as to avoid slipping, and can also protect the user's hands.
[0032] Further, the material of the anti-skid sleeve is one or a combination of natural rubber, thermoplastic polyurethane and thermoplastic rubber.
[0033] In the embodiment, first, the MIC is placed in the groove test site 8 of the test carrier 6, and the groove test site 8 is provided with a direction identification fool-proof design, it is necessary to note that the MIC pad is placed upward, then the slide 4 is pressed down through the handle, the slide 4 drives the test block 5 to move downward to the direction of the test carrier 6, when the pressure control site 7 contacts with the pressure control valve 14, the downward movement of the slide 4 can be stopped, the other end of the test probe 15 contacts with the MIC pad, at this time, the test circuit board 16 and the MIC pad form a connection closed loop, using the test software developed by Lingmai, according to the operation steps, the test button is clicked, finally, the microphone test is realized in combination with the test circuit board 16, the sound card and the power amplifier; the test content includes current, sensitivity, frequency response, phase, THD and other acoustic performance and electrical performance indicators.
[0034] The above only discloses a preferred embodiment of the utility model, of course, cannot limit the scope of the utility model, and the person skilled in the art can understand that all or part of the above-mentioned embodiments are realized, and equivalent changes made according to the utility model claims still belong to the range covered by the utility model.
Claims
1. A silicon microphone test tool, characterized in that, it comprises a vertical plate and a detection platform, the vertical plate is provided with a sliding rail, the sliding rail is provided with a sliding seat, the lower side of the sliding seat is provided with a test block, one side of the test block is provided with a pressure control valve, the test block is provided with a test probe, one end of the test probe is connected with a test circuit board, the detection platform is provided with an acoustic cavity, the acoustic cavity is provided with a full-frequency horn, the end surface of the detection platform is provided with a test carrier and a pressure control site, the middle part of the test carrier is provided with a recess test site, the vertical plate is fixedly connected with the detection platform and located at the end surface of the detection platform, and the test block is located directly above the test carrier.
2. The silicon microphone test tool according to claim 1, characterized in that, the pressure control valve is one or more combinations of overflow valve, pressure reducing valve, sequence valve and pressure relay.
3. The silicon microphone test tool according to claim 2, characterized in that, the shape of the test carrier is circular.
4. The silicon microphone test tool according to claim 3, characterized in that, the silicon microphone test tool further comprises two positioning pins, the end surface of the test carrier is provided with two positioning holes, and the two positioning pins are fixedly connected with the test block and located on both sides of the test block.
5. The silicon microphone test tool according to claim 4, characterized in that, the silicon microphone test tool further comprises two movable frames, an L-shaped handle and a support seat, the two movable frames are respectively hinged with the sliding seats and symmetrically arranged above the sliding seats, the two movable frames are respectively hinged with the L-shaped handle and located at the corners of the L-shaped handle, the L-shaped handle is hinged with the support seat and located on the support seat, the support seat is located between the two movable frames, the support seat is fixedly connected with the vertical plate and located at the end of the vertical plate away from the sliding rail.
6. The silicon microphone test tool according to claim 5, characterized in that, the handle is provided with an anti-skid sleeve.
7. The silicon microphone test tool according to claim 6, characterized in that, the material of the anti-skid sleeve is one or more combinations of natural rubber, thermoplastic polyurethane and thermoplastic rubber.