CN218277143U - Bone conduction earphone vibration measuring device - Google Patents
Bone conduction earphone vibration measuring device Download PDFInfo
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- CN218277143U CN218277143U CN202222606342.0U CN202222606342U CN218277143U CN 218277143 U CN218277143 U CN 218277143U CN 202222606342 U CN202222606342 U CN 202222606342U CN 218277143 U CN218277143 U CN 218277143U
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- earphone
- pressure regulator
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Abstract
The utility model provides a bone conduction earphone vibration measuring device, includes fixed bolster, sensor support, vibration sensor, clamp plate and pressure regulator, and sensor support installs on the fixed bolster, and vibration sensor installs on sensor support, and the clamp plate setting is in the vibration sensor top, and is connected with pressure regulator, and the clamp plate is used for being surveyed earphone pressure on vibration sensor to can make the clamp plate reciprocate in order to adjust the pressure of applying on being surveyed the earphone through pressure regulator. The device simple structure exerts pressure to the earphone of being surveyed through the clamp plate and makes earphone and vibration sensor contact to reduce transmission distance effectively, the measurement process is difficult for receiving the environmental disturbance, and can adjust the pressure intensity of clamp plate in order to adapt to different pressure test conditions.
Description
Technical Field
The invention relates to the technical field of hearing device detection, in particular to a bone conduction earphone vibration measuring device.
Background
At present, there is an earphone through bone conduction, which is a sound conduction mode, that is, converting sound into mechanical vibration of different frequencies, and transmitting sound waves through skull, bone labyrinth, inner ear lymph fluid transmission, spiral organ, auditory nerve and auditory center of a human. Compared with a classical sound conduction mode of generating sound waves through a vibrating diaphragm, the bone conduction mode omits a plurality of sound wave transmission steps and can realize clear sound restoration in a noisy environment. Because of the particularity of the sound conduction mode of the bone conduction earphone, the bone conduction earphone generally does not damage auditory parts such as an external ear for collecting sound, an eardrum for conducting sound, an ossicle and the like, and therefore has a remarkable technical advantage deployment prospect.
In order to better improve the performance of the product, the bone conduction headset needs to be subjected to performance testing before being shipped from a factory, so that the quality of the product is ensured. At present, a vibration signal analysis detection method is generally adopted for a bone conduction headset detection method, and includes the steps of firstly collecting a vibration signal of the bone conduction headset, then analyzing the collected vibration signal, performing a face acoustic impedance simulation operation on an analysis result to obtain a frequency domain internal parameter of a sliding conduction headset to be tested, and finally judging a test result of the bone conduction headset to be tested according to the frequency domain internal parameter.
Traditional measuring device top adopts butyl rubber, and the lower extreme adopts the sound collection to glue, then carries out signal acquisition by the microphone through top vibration, and this kind of mode is influenced by environmental noise easily, and the vibration signal who surveys easily produces the error
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve above-mentioned technical problem, provide a bone conduction earphone vibration measuring device, the device simple structure, through the clamp plate to being surveyed the earphone and exert pressure messenger and be surveyed earphone and vibration sensor contact to reduce transmission distance effectively, the measurement process is difficult for receiving the environmental disturbance, and can adjust the pressure intensity of clamp plate in order to adapt to different pressure test conditions.
The utility model discloses a realize above-mentioned purpose, the technical scheme who adopts is: the utility model provides a bone conduction earphone vibration measuring device which characterized in that: including fixed bolster, sensor support, vibration sensor, clamp plate and pressure regulator, the sensor support mounting is on the fixed bolster, vibration sensor installs on the sensor support, the clamp plate sets up in the vibration sensor top, and is connected with pressure regulator, the clamp plate is used for being surveyed the earphone and presses on vibration sensor to can make the clamp plate reciprocate in order to adjust the pressure of applying on being surveyed the earphone through pressure regulator.
As a further improvement, the pressure regulator comprises a sleeve and a threaded rod, an internal thread is arranged on the inner wall of the sleeve, the threaded rod is connected in the sleeve in a threaded manner, the threaded rod can be reciprocated by rotating the threaded rod, and the pressing plate is arranged at the bottom of the threaded rod.
As a further improvement, the bottom of threaded rod is provided with threaded connecting hole, be provided with the double-screw bolt on the clamp plate, the clamp plate passes through the double-screw bolt and installs on the threaded rod with the cooperation height-adjustable of connecting hole.
As a further improvement of the utility model, the pressure regulator further comprises a buffer spring, and the buffer spring sleeve is arranged on the sleeve.
As a further improvement, the utility model discloses a link is still included, the link is C shape joggling structure, the bottom at the fixed bolster is fixed to the one end of link, and the other end is connected with pressure regulator.
As a further improvement, the sensor support top inboard is provided with the mounting groove, vibration sensor installs in the mounting groove, vibration sensor includes the contact surface, the contact surface exposes in the sensor support top outward.
As a further improvement, the top of the fixing bracket is arranged to be a boss, and the bottom of the sensor bracket is detachably clamped on the boss.
As a further improvement of the present invention, the vibration sensor is a piezoelectric film sensor.
As a further improvement, the utility model also comprises a sensor adapter plate and a pre-amplification circuit board, and the vibration sensor, the sensor adapter plate and the pre-amplification circuit board are electrically connected with each other.
The beneficial effects of the utility model are that: the utility model discloses in, surveyed earphone and vibration sensor direct contact, through the vibration sensor vibration signal of directly gathering to reduce transmission distance effectively, the measurement process is difficult for receiving the environmental disturbance, simultaneously, exerts pressure to being surveyed the earphone through the clamp plate, plays the effect of fixed and simulation earphone wearing pressure, with the improvement measure the precision, in addition, can adjust the pressure intensity of clamp plate in order to adapt to different pressure test condition through pressure regulator.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
description of the labeling: the device comprises a fixed support 1, a boss 11, a sensor support 2, a mounting groove 21, a vibration sensor 3, a contact surface 31, a connecting frame 4, a pressing plate 5, a stud 51, a pressure regulator 6, a sleeve 61, a threaded rod 62, a buffer spring 63, a connecting hole 64, a sensor adapter plate 7 and a front amplification circuit board 8.
Detailed Description
The present invention will be further described with reference to the following specific embodiments and the accompanying drawings.
As shown in fig. 1, a bone conduction earphone vibration measuring device includes a fixing support 1, a sensor support 2, a vibration sensor 3, a connecting frame 4, a pressing plate 5, a pressure regulator 6, a sensor adapter plate 7 and a pre-amplification circuit board 8.
The top of the fixed support 1 is provided with a boss 11, and the bottom of the sensor support 2 is detachably clamped on the boss 11.
The top inside of sensor holder 2 is provided with mounting groove 21, and vibration sensor 3 installs in mounting groove 21, and vibration sensor 3 adopts and presses the film sensor, including contact surface 31, and contact surface 31 exposes in sensor holder 2 top.
The connecting frame 4 is of a C-shaped bending structure, one end of the connecting frame 4 is fixed at the bottom of the fixed support 1, and the other end of the connecting frame 4 is connected with the pressure regulator 6.
The pressure plate 5 is connected to the pressure regulator 6 and located above the vibration sensor 3, and is used for pressing the earphone to be tested on the vibration sensor 3, and the pressure regulator 6 can enable the pressure plate 5 to move up and down to regulate the pressure applied on the earphone to be tested.
The vibration sensor 3, the sensor adapter plate 7 and the preamplification circuit board 8 are electrically connected.
When the earphone testing device is used, a tested earphone is placed on the vibration sensor 3, and then the threaded rod 62 is rotated, so that the pressing plate 5 is pressed on the tested earphone.
The above-mentioned contents are for convenience of illustrating the present invention, and do not limit the present invention in any form, and persons who know commonly in any technical field have, if in the scope of not departing from the technical features of the present invention, make the equivalent embodiment of local change or modification by using the technical contents of the present invention, and do not depart from the technical features of the present invention, all still belong to the technical features of the present invention.
Claims (9)
1. The utility model provides a bone conduction earphone vibration measuring device which characterized in that: including fixed bolster, sensor support, vibration sensor, clamp plate and pressure regulator, the sensor support mounting is on the fixed bolster, vibration sensor installs on the sensor support, the clamp plate sets up in the vibration sensor top, and is connected with pressure regulator, the clamp plate is used for being surveyed the earphone and presses on vibration sensor to can make the clamp plate reciprocate in order to adjust the pressure of applying on being surveyed the earphone through pressure regulator.
2. A bone conduction earphone vibration measurement apparatus as claimed in claim 1, wherein: the pressure regulator comprises a sleeve and a threaded rod, an internal thread is arranged on the inner wall of the sleeve, the threaded rod is connected into the sleeve in a threaded mode, the threaded rod can be moved up and down through rotating the threaded rod, and the pressing plate is installed at the bottom of the threaded rod.
3. A bone conduction earphone vibration measurement apparatus as claimed in claim 2, wherein: the bottom of the threaded rod is provided with a threaded connecting hole, the pressing plate is provided with a stud, and the pressing plate is adjustably mounted on the threaded rod through the matching height of the stud and the connecting hole.
4. A bone conduction earphone vibration measurement apparatus as claimed in claim 2, wherein: the pressure regulator also comprises a buffer spring, and the buffer spring is sleeved on the sleeve.
5. A bone conduction earphone vibration measurement apparatus as claimed in claim 1, wherein: the pressure regulator is characterized by further comprising a connecting frame, wherein the connecting frame is of a C-shaped bending structure, one end of the connecting frame is fixed to the bottom of the fixing support, and the other end of the connecting frame is connected with the pressure regulator.
6. A bone conduction earpiece vibration measurement apparatus as claimed in claim 1, wherein: the sensor support top inboard is provided with the mounting groove, vibration sensor installs in the mounting groove, vibration sensor includes the contact surface, the contact surface exposes in sensor support top.
7. A bone conduction earphone vibration measurement apparatus as claimed in claim 1, wherein: the top of the fixed support is provided with a boss, and the bottom of the sensor support is detachably clamped on the boss in a clamping mode.
8. A bone conduction earpiece vibration measurement apparatus as claimed in claim 1, wherein: the vibration sensor is a piezoelectric film sensor.
9. A bone conduction earphone vibration measurement apparatus as claimed in claim 1, wherein: the vibration sensor further comprises a sensor adapter plate and a pre-amplification circuit board, and the vibration sensor, the sensor adapter plate and the pre-amplification circuit board are electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222606342.0U CN218277143U (en) | 2022-09-30 | 2022-09-30 | Bone conduction earphone vibration measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222606342.0U CN218277143U (en) | 2022-09-30 | 2022-09-30 | Bone conduction earphone vibration measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218277143U true CN218277143U (en) | 2023-01-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222606342.0U Active CN218277143U (en) | 2022-09-30 | 2022-09-30 | Bone conduction earphone vibration measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218277143U (en) |
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2022
- 2022-09-30 CN CN202222606342.0U patent/CN218277143U/en active Active
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