CN210469739U - Sound cavity structure for microphone sensor phase test - Google Patents
Sound cavity structure for microphone sensor phase test Download PDFInfo
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- CN210469739U CN210469739U CN201921858429.9U CN201921858429U CN210469739U CN 210469739 U CN210469739 U CN 210469739U CN 201921858429 U CN201921858429 U CN 201921858429U CN 210469739 U CN210469739 U CN 210469739U
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Abstract
The utility model discloses a sound cavity structure of microphone sensor phase test, including loudspeaker main part, test back sound cavity and test fixture board, the below of loudspeaker main part is provided with the loudspeaker adapter, and the outside of loudspeaker main part is provided with test back sound cavity, the inside knob that is provided with in left end in test back sound cavity, the top of loudspeaker main part is provided with the test front sound cavity, the top of sound cavity shrouding is provided with the probe keysets. This sound cavity structure of microphone sensor phase place test compares with current ordinary sound cavity structure, has improved testing arrangement's practicality when increasing the structure greatly, and the test fixture board is installed on the sound cavity shrouding, and corresponding test fixture board need be changed to different model sensors, and mark wheat mounting is fixed at sound cavity shrouding top, is in the same position with the sensor that awaits measuring. After adopting above-mentioned structure, can realize the phase test of microphone sensor, the test is more stable simultaneously, and the accuracy is higher.
Description
Technical Field
The utility model relates to a microphone technical field specifically is a sound cavity structure of microphone sensor phase test.
Background
With the rapid development of the semiconductor industry, the design and development of a high-stability and high-reliability test structure are increasingly required, wherein the performance and reliability of the test structure of a microphone sensor among many sensors have a direct influence on the quality of the microphone.
The existing sound cavity for testing is simple in structure and obviously insufficient in testing capacity in the using process, so that the detection effect cannot well meet the using requirements of people, and technical innovation is performed on the basis of the existing sound cavity structure according to the condition.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sound cavity structure of microphone sensor phase place test to it is comparatively simple to provide general test in solving above-mentioned background and uses sound cavity structure, and the test ability in the use is obviously not enough, thereby leads to the not fine user demand scheduling problem that satisfies people of detection effect.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a sound cavity structure of microphone sensor phase test, includes loudspeaker main part, test back sound cavity and test fixture board, the below of loudspeaker main part is provided with the loudspeaker adapter, and the outside of loudspeaker main part is provided with test back sound cavity, the inside knob that is provided with in left end in test back sound cavity, the top of loudspeaker main part is provided with the preceding sound cavity of test, and the top in preceding sound cavity of test is provided with the sound cavity shrouding, the top of sound cavity shrouding is provided with the probe keysets, and the inside of probe keysets is provided with test fixture board, the inside of test fixture board is provided with mark wheat mounting, and the inside of mark wheat mounting is provided with mark wheat main part.
Preferably, the horn adapter is welded with the horn main body through a wire, and the central axis of the horn main body coincides with the central axis of the horn adapter.
Preferably, the sound chamber wraps up in the outside of horn adapter after the test, and the knob is embedded inside the left end in sound chamber after the test.
Preferably, the lower end surface of the acoustic cavity before the test is tightly attached to the upper end surface of the acoustic cavity after the test, and the central axis of the acoustic cavity before the test coincides with the central axis of the acoustic cavity after the test.
Preferably, the central axis of the probe adapter plate is parallel to the central axis of the acoustic cavity before testing, and the horizontal cross section size structure of the acoustic cavity before testing is the same as that of the acoustic cavity after testing.
Preferably, the lower end surface of the probe adapter plate is tightly attached to the sound cavity sealing plate, and the test jig plate is embedded in the probe adapter plate.
Preferably, the bottom of the test fixture plate is provided with a perforated structure, and the horizontal heights of the test fixture plate, the mark wheat fixing piece and the mark wheat main body are the same.
Preferably, the mark wheat main part inlays in the middle part of mark wheat mounting, and coincides between the axis of mark wheat mounting and the axis of mark wheat main part.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the testing jig plate is fixed on the marking microphone fixing piece through screws or pressing blocks, the marking microphone fixing piece is easy to replace, the marking microphone main body has the same meanings as a monitoring microphone and a tracking microphone, the testing jig plate and the sound cavity sealing plate realize positioning and quick replacement through screws and positioning pins, the microphone to be tested is a back-in microphone or a front-in microphone, the reliability and the accuracy of the phase test are ensured, and the standard microphone can be quickly replaced when different types of microphones or the standard microphones are tested to be damaged.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic view of the explosion structure of the present invention;
fig. 3 is a schematic view of the front view structure of the present invention.
In the figure: 1. a horn main body; 2. a horn adapter; 3. a knob; 4. testing the rear acoustic cavity; 5. testing the front acoustic cavity; 6. an acoustic cavity sealing plate; 7. testing the jig plate; 8. marking the wheat fixing piece; 9. marking a wheat main body; 10. a probe adapter plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a sound cavity structure for phase test of a microphone sensor comprises a loudspeaker main body 1, a tested sound cavity 4 and a test fixture plate 7, wherein a loudspeaker adapter 2 is arranged below the loudspeaker main body 1, a tested sound cavity 4 is arranged outside the loudspeaker main body 1, the loudspeaker adapter 2 and the loudspeaker main body 1 are welded together through a lead, the central axis of the loudspeaker main body 1 is superposed with the central axis of the loudspeaker adapter 2, a knob 3 is arranged inside the left end of the tested sound cavity 4, the tested sound cavity 4 is wrapped outside the loudspeaker adapter 2, the knob 3 is embedded inside the left end of the tested sound cavity 4, the loudspeaker main body 1 is fixed below the tested sound cavity 5, the loudspeaker adapter 2 and the loudspeaker main body 1 are welded together through a lead, the tested sound cavity 5 is installed on the tested sound cavity 4, a sound cavity sealing plate 6 is installed on the tested sound cavity 5, a sound hole is formed in the sound cavity sealing plate 6, the microphone sensor to be tested can be provided with an external sound source;
a testing front sound cavity 5 is arranged above the horn main body 1, a sound cavity sealing plate 6 is arranged above the testing front sound cavity 5, the lower end surface of the testing front sound cavity 5 is tightly attached to the upper end surface of the testing rear sound cavity 4, the central axis of the testing front sound cavity 5 is coincided with the central axis of the testing rear sound cavity 4, the central axis of the probe adapter plate 10 is parallel to the central axis of the testing front sound cavity 5, the horizontal cross section size structure of the testing front sound cavity 5 is the same as that of the testing rear sound cavity 4, a probe adapter plate 10 is arranged above the sound cavity sealing plate 6, a testing jig plate 7 is arranged inside the probe adapter plate 10, the lower end surface of the probe adapter plate 10 is tightly attached to the sound cavity sealing plate 6, the testing jig plate 7 is embedded inside the probe adapter plate 10, the testing jig plate 7 and the sound cavity sealing plate 6 realize positioning and quick replacement through screws and positioning pins, the microphone to be tested is a back-tone microphone or a front-tone microphone, so that the reliability and accuracy of phase testing are ensured, and the standard microphone can be quickly replaced when different types of microphones or standard microphones are tested to be damaged;
the inside of the test fixture plate 7 is provided with a marked wheat fixing piece 8, the inside of the marked wheat fixing piece 8 is provided with a marked wheat main body 9, the bottom of the test fixture plate 7 is provided with a perforation structure, the test fixture plate 7, the mark wheat fixing piece 8 and the mark wheat main body 9 have the same horizontal height, the mark wheat main body 9 is embedded in the middle of the mark wheat fixing piece 8, the central axis of the standard wheat fixing piece 8 is coincided with the central axis of the standard wheat main body 9, the test fixture plate 7 is positioned on the acoustic cavity sealing plate 6, the microphone fixing piece is used for placing a microphone to be tested, a bottom sound inlet hole is formed in the bottom of the test fixture plate 7, the mark microphone fixing piece 8 is fixed on the sound cavity sealing plate 6, the mark microphone main body 9 is fixed on the mark microphone fixing piece 8 and is at the same height as the microphone to be tested, the mark microphone main body 9 is fixed on the mark microphone fixing piece 8 through a screw or a pressing block and is easy to replace, and the mark microphone main body 9 has the same meaning as a monitoring microphone and a tracking microphone.
The working principle is as follows: when the acoustic cavity structure for the phase test of the microphone sensor is used, firstly, a horn adapter 2 is welded with a horn main body 1 through a lead, a pre-test acoustic cavity 5 is arranged on a post-test acoustic cavity 4, an acoustic cavity sealing plate 6 is arranged on the pre-test acoustic cavity 5, a sound hole is formed in the acoustic cavity sealing plate 6 and can provide an external sound source for the microphone sensor to be tested, a mark microphone fixing member 8 is fixed on the acoustic cavity sealing plate 6, a mark microphone main body 9 is fixed on the mark microphone fixing member 8 and is at the same height with the microphone to be tested, the mark microphone main body 9 is fixed on the mark microphone fixing member 8 through screws or pressing blocks and is easy to replace, the mark microphone main body 9 has the same meanings as a monitoring microphone and a tracking microphone, a test tool plate 7 and the acoustic cavity sealing plate 6 realize positioning and quick replacement through screws and positioning pins, the microphone to be tested is a back-in microphone or a front-in microphone, and the reliability and accuracy of, when microphones of different models or standard microphones are tested to be damaged, the standard microphones can be quickly replaced, and the working principle of the sound cavity structure for the phase test of the microphone sensor is the working principle.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a sound cavity structure of microphone sensor phase test, includes loudspeaker main part (1), test back sound chamber (4) and test fixture board (7), its characterized in that: the utility model discloses a test device, including loudspeaker main part (1), the below of loudspeaker main part (1) is provided with loudspeaker adapter (2), and the outside of loudspeaker main part (1) is provided with test back sound chamber (4), the left end inside of test back sound chamber (4) is provided with knob (3), the top of loudspeaker main part (1) is provided with before the test sound chamber (5), and the top of testing before sound chamber (5) is provided with sound chamber shrouding (6), the top of sound chamber shrouding (6) is provided with probe keysets (10), and the inside of probe keysets (10) is provided with test tool board (7), the inside of test tool board (7) is provided with mark wheat mounting (8), and the inside of mark wheat mounting (8) is provided with mark wheat main part (9).
2. The structure of the acoustic cavity for the phase test of the microphone sensor as claimed in claim 1, wherein: the horn adapter (2) is welded with the horn main body (1) through a wire, and the central axis of the horn main body (1) coincides with the central axis of the horn adapter (2).
3. The structure of the acoustic cavity for the phase test of the microphone sensor as claimed in claim 1, wherein: test back sound chamber (4) parcel is in the outside of horn adapter (2), and inside the left end in test back sound chamber (4) knob (3) are embedded.
4. The structure of the acoustic cavity for the phase test of the microphone sensor as claimed in claim 1, wherein: the lower end surface of the sound cavity (5) before the test is tightly attached to the upper end surface of the sound cavity (4) after the test, and the central axis of the sound cavity (5) before the test is coincided with the central axis of the sound cavity (4) after the test.
5. The structure of the acoustic cavity for the phase test of the microphone sensor as claimed in claim 1, wherein: the central axis of the probe adapter plate (10) is parallel to the central axis of the sound cavity (5) before testing, and the size structure of the horizontal cross section of the sound cavity (5) before testing is the same as that of the horizontal cross section of the sound cavity (4) after testing.
6. The structure of the acoustic cavity for the phase test of the microphone sensor as claimed in claim 1, wherein: the lower end surface of the probe adapter plate (10) is tightly attached to the sound cavity sealing plate (6), and the test jig plate (7) is embedded in the probe adapter plate (10).
7. The structure of the acoustic cavity for the phase test of the microphone sensor as claimed in claim 1, wherein: the bottom of the test fixture plate (7) is provided with a perforated structure, and the horizontal heights of the test fixture plate (7), the mark wheat fixing piece (8) and the mark wheat main body (9) are the same.
8. The structure of the acoustic cavity for the phase test of the microphone sensor as claimed in claim 1, wherein: mark wheat main part (9) inlay in the middle part of mark wheat mounting (8), and coincide mutually between the axis of mark wheat mounting (8) and the axis of mark wheat main part (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921858429.9U CN210469739U (en) | 2019-10-31 | 2019-10-31 | Sound cavity structure for microphone sensor phase test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921858429.9U CN210469739U (en) | 2019-10-31 | 2019-10-31 | Sound cavity structure for microphone sensor phase test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210469739U true CN210469739U (en) | 2020-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921858429.9U Active CN210469739U (en) | 2019-10-31 | 2019-10-31 | Sound cavity structure for microphone sensor phase test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210469739U (en) |
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2019
- 2019-10-31 CN CN201921858429.9U patent/CN210469739U/en active Active
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