WO2023045697A1 - 一种漏音测试设备及测试方法 - Google Patents

一种漏音测试设备及测试方法 Download PDF

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Publication number
WO2023045697A1
WO2023045697A1 PCT/CN2022/115031 CN2022115031W WO2023045697A1 WO 2023045697 A1 WO2023045697 A1 WO 2023045697A1 CN 2022115031 W CN2022115031 W CN 2022115031W WO 2023045697 A1 WO2023045697 A1 WO 2023045697A1
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sound
sound pickup
product
arc
product support
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French (fr)
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李进保
张金国
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Goertek Inc
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Goertek Inc
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts

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  • the invention belongs to the technical field of sound leakage testing of wearable products, and in particular relates to a sound leakage testing device and a testing method.
  • Wearable products such as AR glasses, VR glasses, MR glasses, and wearable products have increasingly become common items in daily life.
  • wearable products are equipped with an acoustic system for playing audio. Before leaving the factory, it is necessary to check whether the acoustic system is Leakage is tested.
  • the object of the present invention is to provide a sound leakage testing device and a testing method, aiming at solving the problems of inconvenient search for sound leakage location and low testing efficiency.
  • the invention discloses a sound leakage testing device.
  • the sound leakage testing device includes a product bracket, a rotating drive mechanism for driving the product bracket to rotate, and a sound pickup device.
  • the sound pickup device includes a sound pickup bracket, which is round A plurality of sound pickup devices arranged in an arc and installed on the sound pickup bracket, the center of the arc is set on the side close to the product support, and the vertical line of the plane where the arc is located is in line with the product
  • the rotation axis of the bracket is vertical, and each of the sound pickup devices is arranged along the radial direction of the circular arc; a test system is also included, and the rotation drive mechanism and a plurality of the sound pickup devices are respectively electrically connected to the test system.
  • the rotation axis of the product support is arranged vertically; the installation direction of one of the sound pickup devices at the upper end is set in the same direction as the rotation axis of the product support, and the installation direction of one of the sound pickup devices at the lower end is An acute included angle ⁇ is provided between the direction and the rotation axis of the product holder.
  • the product support includes a product support, a placement table arranged on the upper end of the product support; frame, and a plurality of the sound pickup devices are installed on the arc mounting frame respectively.
  • the product support also includes an elevating drive mechanism fixed on the product support, the placing table is fixed on the output part of the elevating drive mechanism;
  • a translation drive mechanism arranged along the horizontal direction, the arc-shaped installation frame is fixed on the output part of the translation drive mechanism.
  • an XY-direction translation drive mechanism is fixed on the upper end of the sound pickup support, and the arc-shaped mounting bracket is fixed on the output part of the XY-direction translation drive mechanism.
  • the product support further includes an XY translation driving mechanism fixed on the product support, and the placing table is fixed on an output part of the XY translation driving mechanism.
  • a telescopic adjustment mechanism arranged radially along the arc is fixed on the sound pickup bracket corresponding to each of the sound pickup devices, and the sound pickup device is fixed on the output part of the telescopic adjustment mechanism .
  • a vertical aligner is provided on the side of one of the sound pickup devices located at the upper end, and a horizontal aligner is provided on the side of one of the sound pickup devices located in the horizontal direction.
  • the test system includes a test computer, a Bluetooth connector electrically connected to the test computer and an electric control box, a plurality of the sound pickup devices are respectively electrically connected to the electric control box, and the rotating drive The mechanism is electrically connected with the test computer or the electric control box.
  • the present invention also discloses a sound leakage test method, based on the sound leakage test equipment, comprising the following steps:
  • Step 1 Calibrate the relative position between the product bracket and the sound pickup device
  • the calibration structure is fixed on the product support, and the calibration structure is detected by the vertical calibrator and the horizontal calibrator installed on the sound pickup device, so that the detection part of the calibration structure is located at at the center of said arc;
  • Step 2 Calibrate the sound pressure of multiple pickup devices
  • a spherical sound source is installed on the upper end of the calibration structure, and the spherical sound source emits sound to a plurality of the pickup devices, and the test system judges a plurality of the pickup devices according to the feedback signals of the plurality of pickup devices whether the parts are damaged, and adjust the relative position between the plurality of sound pickup devices and the center of the arc according to the strength of the feedback signals of the plurality of sound pickup devices;
  • Step 3 Test the leak location
  • the spherical sound source and the calibration structure are disassembled from the product support, and then the wearable product to be tested is placed on the product support, and the sound is emitted by the wearable product to be tested and driven by the rotating drive mechanism
  • the product bracket and the wearable product to be tested are driven to rotate 360 degrees, and the multiple sound pickup devices feed back signals to the test system in real time, and the test system generates a spherical sound field distribution map according to the feedback signals.
  • the sound leakage test equipment of the present invention includes a product bracket, a rotating drive mechanism for driving the rotation of the product bracket, and a sound pickup device.
  • the sound pickup device includes a sound pickup bracket arranged in an arc shape and installed For multiple sound pickup devices on the sound pickup bracket, the center of the arc is set on the side close to the product support, and the vertical line of the plane where the arc is located is perpendicular to the rotation axis of the product support, and each sound pickup device is arranged along the circle
  • the arc is arranged radially; a test system is also included, and the rotating drive mechanism and multiple sound pickup devices are respectively electrically connected to the test system.
  • the sound leakage testing method of the present invention comprises the following steps: Step 1, calibrate the relative position between the product bracket and the sound pickup device; Step 2, calibrate the sound pressure of multiple sound pickup devices; Step 3, test the sound leakage position.
  • Step 1 calibrate the relative position between the product bracket and the sound pickup device
  • Step 2 calibrate the sound pressure of multiple sound pickup devices
  • Step 3 test the sound leakage position.
  • Step 3 put the wearable product under test in the power-on state on the upper part of the product bracket, so that the acoustic system of the wearable product is at the center of the arc formed by multiple sound pickup devices, start the test system, and the product bracket is driven by the rotating drive mechanism to drive the wearable product.
  • the product rotates 360 degrees.
  • While rotating, multiple sound pickup devices of the sound pickup device will feed back the sound pickup situation to the test system in real time, and then form a spherical sound field distribution map through the test system and distinguish the sound leakage area.
  • Due to the acoustic The system is located at the center of the arc formed by multiple sound pickup devices, and the rotating drive mechanism can drive the wearable product to rotate 360 degrees. After turning 360 degrees, it is equivalent to multiple positions on the spherical surface around the acoustic system of the wearable product.
  • the sound leakage test can accurately and quickly find the location of the sound leakage, which can improve the test efficiency and solve the problems of inconvenient search for the location of the sound leakage and low test efficiency.
  • Fig. 1 is the structural representation of the leakage test equipment of the embodiment of the present invention.
  • Fig. 2 is a schematic diagram of position calibration of the sound leakage test equipment of the embodiment of the present invention.
  • Fig. 3 is a schematic diagram of the sound pressure calibration of the sound leakage testing equipment of the embodiment of the present invention.
  • Test computer 12. Bluetooth connector; 21. Product bracket; 211. Product support; 212. Lifting drive mechanism; 213. Placement table; 22. Rotation drive mechanism; 23. Calibration rod; source; 31. arc mounting frame; 32. pickup device; 33. telescopic adjustment mechanism; 34. vertical calibrator; 35. horizontal calibrator; 36. pickup support; 37. translational drive mechanism; 38. electric control box.
  • Fig. 1 to Fig. 3 are the structural representations of the sound leakage testing equipment of the embodiment of the present invention, wherein, Fig. 1 shows the structural representation of the sound leakage testing device of the embodiment of the present invention, Fig. 2 shows the leakage testing device of the embodiment of the present invention Fig. 3 shows a schematic diagram of the sound pressure calibration of the sound leakage testing equipment according to the embodiment of the present invention. For ease of expression, only the parts relevant to the present invention are shown in the figure.
  • the sound leakage test equipment includes a product support 21, a rotary drive mechanism 22 for driving the product support 21 to rotate, and a sound pickup device
  • the sound pickup device includes a sound pickup bracket, which is in the form of an arc
  • a plurality of sound pickup devices 32 arranged in sequence and installed on the sound pickup bracket, the center of the arc is arranged on the side close to the product support 21, and the vertical line of the plane where the arc is located is perpendicular to the axis of rotation of the product support 21, each
  • Each pick-up device 32 is arranged radially along the arc, usually, the pick-up device 32 is a microphone, a sound sensor, etc.; also includes a test system, the rotary drive mechanism 22, a plurality of pick-up devices 32 are electrically connected to the test system.
  • the wearable product to be tested in the power-on state is placed on the upper part of the product support 21, so that the acoustic system of the wearable product is at the center of the arc formed by a plurality of sound pickup devices 32, the test system is started, and the product is driven by the rotating drive mechanism 22.
  • the bracket 21 drives the wearable product to rotate 360 degrees. While rotating, multiple sound pickup devices 32 of the sound pickup device will feed back the sound pickup situation to the test system in real time, and then form a spherical sound field distribution map through the test system and distinguish the sound leakage area.
  • the acoustic system of the wearable product is at the center of the arc formed by a plurality of sound pickup devices 32, and the rotating drive mechanism 22 can drive the wearable product to rotate 360 degrees, after turning 360 degrees, it is equivalent to the spherical surface on the peripheral side of the acoustic system of the wearable product Leakage tests have been carried out at multiple positions on the screen, which can accurately and quickly find the location of the leak, and can improve the test efficiency.
  • the leak test equipment in the embodiment of the present invention solves the problems of inconvenient search for the location of the leak and low test efficiency.
  • the rotation axis of the product support 21 is arranged vertically, and is fixed on the output part of the rotation drive mechanism 22, usually, the rotation drive mechanism 22 is an electric turntable; It is arranged in the same direction as the rotation axis of the product support 21 , and an acute included angle ⁇ is set between the installation direction of a sound pickup device 32 at the lower end and the rotation axis of the product support 21 . It can increase the test range, prevent the product support 21 from interfering with the sound pickup device 32 at the lower end when it rotates, and also prevent the sound pickup device 32 at the lower end from being unable to receive the sound from the wearable product due to its location.
  • the product support 21 includes a product support 211 and a placement table 213 arranged on the upper end of the product support 211.
  • the product support 21 also includes a lifting drive mechanism 212 fixed on the product support 211.
  • the placement table 213 It is fixed on the output part of the lifting drive mechanism 212, and the lifting drive mechanism 212 is an electric cylinder, which can accurately adjust the height of the placing table 213.
  • the sound leakage test equipment of the present invention is mainly used for the sound leakage test of wearable products such as AR glasses, VR glasses, MR glasses, and head-wearing products. It is fixed on the placement table 213 by means of bonding, bolting and the like.
  • the sound pickup bracket includes a sound pickup support 36 and an arc-shaped installation frame 31 arranged on the sound pickup support 36 , and a plurality of sound pickup devices 32 are installed on the arc-shaped installation frame 31 respectively.
  • a translational drive mechanism 37 arranged in the horizontal direction is fixed on the pickup support 36, and the arc-shaped mounting frame 31 is fixed on the output part of the translational drive mechanism 37.
  • the translational drive mechanism 37 is an electric cylinder.
  • a vertical calibrator 34 is provided at the side of a pickup device 32 positioned at the upper end, and a horizontal calibrator 35 is provided at the side of a pickup device 32 positioned at the horizontal direction, which can be passed
  • the horizontal calibrator 35 measures the horizontal position
  • the vertical calibrator 34 measures the vertical position.
  • the vertical calibrator 34 and the horizontal calibrator 35 are laser calibrators or sensors.
  • a calibration rod 23 is fixed on the placement table 213 , an upper calibration surface is provided on the upper end of the calibration rod 23 , and a side calibration surface is provided on one side of the upper end of the calibration rod 23 .
  • the placing table 213 can be directly fixed on the upper end of the product support 211; the upper end of the pickup support 36 is provided with an XY translational drive mechanism, and the arc-shaped mounting frame 31 is fixed on the output part of the XY translational drive mechanism
  • the XY translation drive mechanism includes a translation drive mechanism 37 arranged in the horizontal direction, a lift drive mechanism 212 fixed on the output part of the translation drive mechanism 37, and the arc-shaped mounting bracket 31 is fixed on the lift drive mechanism. 212 on the output section.
  • an XY translation drive mechanism is provided on the upper end of the product support 211, and the placing table 213 is fixed on the output part of the XY translation drive mechanism.
  • the XY translation drive mechanism includes a fixed On the product support member 211 upper end and the translation drive mechanism 37 that is arranged in the horizontal direction, the lift drive mechanism 212 that is fixed on the output portion of the translation drive mechanism 37, the placement table 213 is fixed on the output portion of the lift drive mechanism 212; Shaped mounting bracket 31 is directly fixed on the sound pickup support 36 upper ends.
  • the above several embodiments can realize the adjustment of the relative position between the product support 21 and the plurality of sound pickup devices 32 of the sound pickup device, thereby ensuring that the acoustic system of the wearable product to be tested placed on the product support 21 is located at the position of the plurality of sound pickup devices 32 The center of the arc formed.
  • the pick-up support in order to ensure the accuracy of the test, on the pick-up support, corresponding to each pick-up device 32 places are respectively fixed with telescopic adjustment mechanisms 33 arranged radially along the arc, and the pick-up devices 32 are fixed.
  • the telescopic adjustment mechanism 33 On the output part of the telescopic adjustment mechanism 33, usually, the telescopic adjustment mechanism 33 is an electric cylinder.
  • a plurality of sound pickup devices 32 receive the sound that spherical sound source 24 sends respectively, the position of sound pickup device 32 is adjusted according to the sound intensity that sound pickup device 32 receives, make multiple after adjustment The intensity of the sound received by the sound pickup devices 32 is the same, and whether the sound pickup device 32 is damaged can also be judged by whether multiple sound pickup devices 32 receive the sound, so as to improve the accuracy of the test.
  • the test system includes a test computer 11, a Bluetooth connector 12 electrically connected to the test computer 11 and an electric control box 38, a plurality of sound pickup devices 32, a plurality of telescopic adjustment mechanisms 33, a translation drive mechanism 37,
  • the lifting drive mechanism 212 is electrically connected with the electric control box 38 respectively
  • the rotation drive mechanism 22 is electrically connected with the test computer 11 or the electric control box 38 .
  • the directivity special-purpose test software is pre-installed, and the sound signals received are converted into electrical signals by a plurality of pickup devices 32 and transmitted to the test computer 11, and the spherical surface is generated after the data is summarized by the directivity special-purpose test software.
  • the distribution diagram of the sound field is displayed on the display screen of the test computer 11.
  • the rotary drive mechanism 22 is a 360-degree turntable, it has a controller and can be directly connected to the test computer 11; .
  • the present invention also discloses a sound leakage test method, which includes the following steps:
  • Step 1 Calibrate the relative position between the product bracket 21 and the pickup device
  • the calibration structure is fixed on the product support 21, and the calibration structure is detected by the vertical calibrator 34 and the horizontal calibrator 35 installed on the sound pickup device, so that the detection part of the calibration structure is located at the center of the arc.
  • the calibration structure is fixed on the placement table 213, and the calibration structure is a calibration rod 23, an upper calibration surface is provided on the upper end of the calibration rod 23, and a side calibration surface is provided on one side of the upper end of the calibration rod 23.
  • Step 2 calibrating the sound pressure of a plurality of pickup devices 32
  • a spherical sound source 24 is installed on the upper end of the calibration structure, and a plurality of sound pick-up devices 32 are sent out by the spherical sound source 24, and the test system judges whether a plurality of sound pick-up devices 32 are damaged according to the feedback signals of a plurality of sound pick-up devices 32, and according to The strengths of the feedback signals of the plurality of sound pickup devices 32 adjust the relative positions between the plurality of sound pickup devices 32 and the center of the arc.
  • the spherical sound source 24 and the calibration structure are disassembled from the product support 21, and then the wearable product to be tested is placed on the product support 21.
  • the acoustic system of the wearable product placed on the product support 21 is in a plurality of sound pickup devices 32
  • the test system is started, the wearable product to be tested makes a sound and the product support 21 is driven by the rotating drive mechanism 22, the wearable product to be tested rotates 360 degrees, and the multiple sound pickup devices 32 feed back signals to the test system in real time , the spherical sound field distribution map is generated by the test system according to the feedback signal.
  • the 360-degree turntable controls the product support 21 to turn 0.1 degree, 0.2 degree, 0.5 degree, etc. each time.
  • This sound leakage test method can adjust the relative position between the product support 21 and the plurality of sound pickup devices 32, so as to ensure that the acoustic system of the wearable product placed on the product support 21 is at the center of the arc formed by the plurality of sound pickup devices 32 , and can detect whether a plurality of pickup devices 32 are damaged and can adjust the position of a plurality of pickup devices 32, to ensure that the sound intensity received by a plurality of pickup devices 32 is consistent, thereby improving test accuracy; during testing, by The rotating drive mechanism 22 drives the product bracket 21 to drive the wearable product to rotate 360 degrees.
  • the multiple sound pickup devices 32 of the sound pickup device While rotating, the multiple sound pickup devices 32 of the sound pickup device will feed back the sound pickup situation to the test system in real time, and then form a spherical sound field distribution map through the test system and check the leakage.
  • the sound area is distinguished and marked. Since the acoustic system of the wearable product is at the center of the arc formed by a plurality of sound pickup devices 32, and the rotating drive mechanism 22 can drive the wearable product to rotate 360 degrees, it is equivalent to the wearable product after turning 360 degrees. Multiple positions on the spherical surface around the acoustic system have been tested for sound leakage, which can accurately and quickly find the position of the sound leakage, and can improve the test efficiency. The problem of low efficiency.

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Abstract

一种漏音测试设备及测试方法。漏音测试设备包括产品支架(21)、用于驱动产品支架(21)转动的转动驱动机构(22)、拾音装置以及测试系统，拾音装置包括拾音支架、呈圆弧状依次排列并且安装在拾音支架上的多个拾音器件(32)，圆弧的圆心设置在靠近产品支架(21)的一侧，并且圆弧所在平面的垂线与产品支架(21)的转动轴线垂直，并且每个拾音器件(32)均沿圆弧的径向设置。漏音测试方法包括以下步骤：步骤一、校准产品支架(21)与拾音装置之间的相对位置；步骤二、校准多个拾音器件(32)的声压；步骤三、测试漏音位置。能够通过测试系统形成球面声场分布图并对漏音区域进行区别标记，解决了漏音位置查找不方便及测试效率低的问题。

Description

一种漏音测试设备及测试方法
本申请要求于2021年09月22日提交中国专利局、申请号为202111108545.0、发明名称为“一种漏音测试设备及测试方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明属于穿戴产品漏音测试技术领域，尤其涉及一种漏音测试设备及测试方法。
背景技术
AR眼镜、VR眼镜、MR眼镜、穿戴产品等穿戴产品越来越多的成为生活中的常用物品，通常，在穿戴产品上都设有用于播放音频的声学系统，在出厂前需要对声学系统是否漏音进行测试。
目前，都是通过人工手持穿戴产品进行测试的，漏音位置查找不方便，而且测试效率比较低。
发明内容
本发明的目的在于提供一种漏音测试设备及测试方法，旨在解决漏音位置查找不方便及测试效率低的问题。
本发明公开了一种漏音测试设备，所述漏音测试设备包括产品支架、用于驱动所述产品支架转动的转动驱动机构以及拾音装置，所述拾音装置包括拾音支架、呈圆弧状依次排列并且安装在所述拾音支架上的多个拾音器件，所述圆弧的圆心设置在靠近所述产品支架的一侧，并且所述圆弧所在平面的垂线与所述产品支架的转动轴线垂直，并且每个所述拾音器件均沿所述圆弧的径向设置；还包括测试系统，所述转动驱动机构、多个所述拾音器件分别与所述测试系统电连接。
作为一种改进，所述产品支架的转动轴线沿竖向设置；位于上端的一个所述拾音器件的设置方向与所述产品支架的转动轴线同向设置，位于下端的一个所述拾音器件的设置方向与所述产品支架的转动轴线之间设有锐角夹角α。
作为一种改进，所述产品支架包括产品支撑件、设置在所述产品支撑件上端的放置台；所述拾音支架包括拾音支撑件、设置在所述拾音支撑件上的弧形安装架，多个所述拾音器件分别安装在所述弧形安装架上。
作为一种改进，所述产品支架还包括固定在所述产品支撑件上的升降驱动机构，所述放置台固定在所述升降驱动机构的输出部上；在所述拾音支撑件上端固定有沿水平方向设置的平移驱动机构，所述弧形安装架固定在所述平移驱动机构的输出部。
作为一种改进，在所述拾音支撑件上端固定有XY向平移驱动机构，所述弧形安装架固定在所述XY向平移驱动机构的输出部上。
作为一种改进，所述产品支架还包括固定在所述产品支撑件上的XY向平移驱动机构，所述放置台固定在所述XY向平移驱动机构的输出部上。
作为一种改进，在所述拾音支架上对应每个所述拾音器件处分别固定有沿圆弧的径向设置的伸缩调节机构，所述拾音器件固定在所述伸缩调节机构的输出部上。
作为一种改进，在位于上端的一个所述拾音器件的侧部设有竖向校准器，在位于水平方向的一个所述拾音器件的侧部设有水平校准器。
作为一种改进，所述测试系统包括测试电脑，分别与所述测试电脑电连接的蓝牙连接器以及电控箱，多个所述拾音器件分别与所述电控箱电连接，所述转动驱动机构与所述测试电脑或者所述电控箱电连接。
本发明中还公开了一种漏音测试方法，基于所述漏音测试设备，包括以下步骤：
步骤一：校准所述产品支架与所述拾音装置之间的相对位置
将校准结构固定在所述产品支架上，由安装在所述拾音装置上的所述竖向校准器、所述水平校准器对所述校准结构进行检测，使所述校准结构的检测部位于所述圆弧的圆心处；
步骤二：校准多个所述拾音器件的声压
在所述校准结构的上端部安装球面声源，由所述球面声源向多个所述拾音器件发出声音，由所述测试系统根据多个所述拾音器件的反馈信号判断多个所述拾音器件是否有损坏，并根据多个所述拾音器件的反馈信号的强弱程度调节多个所述拾音器件与所述圆弧的圆心之间的相对位置；
步骤三：测试漏音位置
将所述球面声源、所述校准结构从所述产品支架上拆卸下，再将待测穿戴产品安放到所述产品支架上，由所述待测穿戴产品发出声音并由所述转动驱动机构驱动所述产品支架、所述待测穿戴产品转动360度，由多个所述拾音器件实时向所述测试系统反馈信号，由所述测试系统根据反馈信号生成球面声场分布图。
由于采用了上述技术方案，本发明的漏音测试设备包括产品支架、用于驱动产品支架转动的转动驱动机构以及拾音装置，该拾音装置包括拾音支架、呈圆弧状依次排列并且安装在拾音支架上的多个拾音器件，该圆弧的圆心设置在靠近产品支架的一侧，并且该圆弧所在平面的垂线与产品支架的转动轴线垂直，并且每个拾音器件均沿圆弧的径向设置；还包括测试系统，该转动驱动机构、多个拾音器件分别与测试系统电连接。本发明的漏音测试方法包括以下步骤：步骤一、校准产品支架与拾音装置之间的相对位置；步骤二、校准多个拾音器件的声压；步骤三、测试漏音位置。测试时，将处于开机状态的待测穿戴产品安放到产品支架上部，使穿戴产品的声学系统处于多个拾音器件形成的圆弧的圆心处，启动测试系统，由转动驱动机构驱动产品支架带动穿戴产品转动360度，转动的同时由拾音装置的多个拾音器件将拾音情况实时反馈至测试系统，再通过测试系统形成球面声场分布图并对漏音区域进行区别标记，由于穿戴产品的声学系统处于多个拾音器件形成的圆弧的圆心处，并且转动驱动机构能够驱动穿戴产品转动360度，转过360度后相当于对穿戴产品的声学系统周侧的球面上的多个位置进行了漏音测试，能够准确快速的查找漏音位置，可以提高测试效率，解决了漏音位置查找不方便及测试效率低的问题。
附图说明
图1是本发明实施例的漏音测试设备的结构示意图；
图2是本发明实施例的漏音测试设备的位置校准示意图；
图3是本发明实施例的漏音测试设备的声压校准示意图；
其中，11、测试电脑；12、蓝牙连接器；21、产品支架；211、产品支撑件；212、升降驱动机构；213、放置台；22、转动驱动机构；23、校准棒；24、球面声源；31、弧形安装架；32、拾音器件；33、伸缩调节机构；34、竖向校准器；35、水平校准器；36、拾音支撑件；37、平移驱动机构；38、电控箱。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
图1至图3是本发明实施例的漏音测试设备的结构示意图，其中，图1示出了本发明实施例的漏音测试设备的结构示意图，图2示出了本发明实施例的漏音测试设备的位置校准示意图，图3示出了本发明实施例的漏音测试设备的声压校准示意图。为了便于表述，图中只给出了与本发明相关的部分。
由图1、图2和图3可知，该漏音测试设备包括产品支架21、用于驱动产品支架21转动的转动驱动机构22以及拾音装置，该拾音装置包括拾音支架、呈圆弧状依次排列并且安装在拾音支架上的多个拾音器件32，该圆弧的圆心设置在靠近产品支架21的一侧，并且圆弧所在平面的垂线与产品支架21的转动轴线垂直，每个拾音器件32均沿圆弧的径向设置，通常，该拾音器件32为麦克风、声音传感器等；还包括测试系统，该转动驱动机构22、多个拾音器件32分别与测试系统电连接。
测试时，将处于开机状态的待测穿戴产品安放到产品支架21上部，使穿戴产品的声学系统处于多个拾音器件32形成的圆弧的圆心处，启动测试系统，由转动驱动机构22驱动产品支架21带动穿戴产品转动360度，转动的同时由拾音装置的多个拾音器件32将拾音情况实时反馈至测试系统，再通过测试系统形成球面声场分布图并对漏音区域进行区别标记，由于穿戴产品的声学系统处于多个拾音器件32形成的圆弧的圆心处，并且转动驱动机构22能够驱动穿戴产品转 动360度，转过360度后相当于对穿戴产品的声学系统周侧的球面上的多个位置进行了漏音测试，能够准确快速的查找漏音位置，可以提高测试效率，本发明实施例的漏音测试设备解决了漏音位置查找不方便及测试效率低的问题。
在本发明实施例中，产品支架21的转动轴线沿竖向设置，并且固定在转动驱动机构22的输出部上，通常，转动驱动机构22为电动转台；位于上端的一个拾音器件32的设置方向与产品支架21的转动轴线同向设置，位于下端的一个拾音器件32的设置方向与产品支架21的转动轴线之间设有锐角夹角α。能够增大测试范围，避免产品支架21转动时与下端的拾音器件32产生干涉，而且还可以避免下端的拾音器件32因设置位置的原因无法接收穿戴产品发出的声音。
具体的说，产品支架21包括产品支撑件211、设置在产品支撑件211上端的放置台213，通常，该产品支架21还包括固定在产品支撑件211上的升降驱动机构212，该放置台213固定在升降驱动机构212的输出部上，该升降驱动机构212为电缸，能够精确的调节放置台213的高度。
本发明的漏音测试设备主要用于AR眼镜、VR眼镜、MR眼镜、头戴产品等穿戴产品的漏音测试，需要在放置台213上固定人头模型用于放置穿戴产品，通常人头模型是通过粘接、螺栓连接等方式固定在放置台213上的。
具体的说，拾音支架包括拾音支撑件36、设置在拾音支撑件36上的弧形安装架31，多个拾音器件32分别安装在弧形安装架31上。为了便于调节，在拾音支撑件36上固定有沿水平方向设置的平移驱动机构37，该弧形安装架31固定在平移驱动机构37的输出部上，通常，该平移驱动机构37为电缸；为了更加准确及方便的进行调节，在位于上端的一个拾音器件32的侧部设有竖向校准器34，在位于水平方向的一个拾音器件32的侧部设有水平校准器35，可以通过水平校准器35测量水平方向的位置，通过竖向校准器34来测量竖向的位置，该竖向校准器34、水平校准器35为激光校准器或者传感器等。
为了便于理解，参照图2对放置台213与多个拾音器件32之间相对位置的校准作如下说明：
在放置台213上固定一根校准棒23，在校准棒23上端面设有上校准面，在校准棒23上端部的一侧处设有侧校准面。校准时，通过升降驱动机构212调节 放置台213的上下位置，直至水平校准器35与侧校准面对正；通过平移驱动机构37调节弧形安装架31的位置，直至竖向校准器34与上校准面对正；再将校准棒23拆卸下，将人头模型对应的固定到放置台213上，再将待测穿戴产品安放到人头模型上进行测试。
在一些实施例中，放置台213可以直接固定在产品支撑件211上端；在拾音支撑件36上端设有XY向平移驱动机构，该弧形安装架31固定在XY向平移驱动机构的输出部上，具体的说，该XY向平移驱动机构包括沿水平方向设置的平移驱动机构37、固定在平移驱动机构37的输出部上的升降驱动机构212，该弧形安装架31固定在升降驱动机构212的输出部上。
在另外的一些实施例中，在产品支撑件211上端设有XY向平移驱动机构，该放置台213固定在XY向平移驱动机构的输出部上，具体的说，该XY向平移驱动机构包括固定在产品支撑件211上端并且沿水平方向设置的平移驱动机构37、固定在平移驱动机构37的输出部上的升降驱动机构212，该放置台213固定在升降驱动机构212的输出部上；该弧形安装架31直接固定在拾音支撑件36上端。
以上几个实施例均可以实现调节产品支架21与拾音装置的多个拾音器件32之间的相对位置，从而确保安放到产品支架21上的待测穿戴产品的声学系统位于多个拾音器件32形成的圆弧的圆心处。
同时，由于设置有多个拾音器件32，为了保证测试的准确性，在拾音支架上对应每个拾音器件32处分别固定有沿圆弧的径向设置的伸缩调节机构33，拾音器件32固定在伸缩调节机构33的输出部上，通常，该伸缩调节机构33为电缸。
为了便于理解，参照图3对多个拾音器件32的校准过程作如下说明：
在校准棒23上固定球面声源24，多个拾音器件32分别接收球面声源24发出的声音，根据拾音器件32接收到的声音强度对拾音器件32的位置进行调节，使调节后的多个拾音器件32接收到的声音强度相同，也可以通过多个拾音器件32是否接收到声音来判断拾音器件32是否有损坏，以此能够提高测试的准确度。
在本发明实施例中，测试系统包括测试电脑11，分别与测试电脑11电连接 的蓝牙连接器12以及电控箱38，多个拾音器件32、多个伸缩调节机构33、平移驱动机构37、升降驱动机构212分别与电控箱38电连接，该转动驱动机构22与测试电脑11或者电控箱38电连接。具体的说，在测试电脑11中预装指向性专用测试软件，由多个拾音器件32将接收到的声音信号转化为电信号传输给测试电脑11，由指向性专用测试软件汇总数据后生成球面声场分布图，并通过测试电脑11的显示屏进行显示。
如果转动驱动机构22是360度转台，其本身具备控制器，能够直接与测试电脑11直接相连；如果转动驱动机构22是电动转台，本身不具备控制器，则需要先与电控箱38电连接。
本发明中还公开了一种漏音测试方法，该漏音测试方法包括以下步骤：
步骤一、校准产品支架21与拾音装置之间的相对位置
将校准结构固定在产品支架21上，由安装在拾音装置上的竖向校准器34、水平校准器35对校准结构进行检测，使校准结构的检测部位于圆弧的圆心处。
具体的说，校准结构固定到放置台213上，该校准结构为校准棒23，在校准棒23上端面设有上校准面，在校准棒23上端部的一侧处设有侧校准面。
步骤二、校准多个拾音器件32的声压
在校准结构的上端部安装球面声源24，由球面声源24向多个拾音器件32发出声音，由测试系统根据多个拾音器件32的反馈信号判断多个拾音器件32是否有损坏，并根据多个拾音器件32的反馈信号的强弱程度调节多个拾音器件32与圆弧的圆心之间的相对位置。
步骤三、测试漏音位置
将球面声源24、校准结构从产品支架21上拆卸下，再将待测穿戴产品安放到产品支架21上，此时，安放到产品支架21上的穿戴产品的声学系统处于多个拾音器件32形成的圆弧的圆心处，启动测试系统，由待测穿戴产品发出声音并由转动驱动机构22驱动产品支架21、待测穿戴产品转动360度，由多个拾音器件32实时向测试系统反馈信号，由测试系统根据反馈信号生成球面声场分布图。
具体的说，该360度转台，通常，该360度转台控制产品支架21每次转过0.1度、0.2度、0.5度等。
该漏音测试方法能够对产品支架21与多个拾音器件32之间的相对位置进行调节，以确保安放到产品支架21的穿戴产品的声学系统处于多个拾音器件32形成的圆弧的圆心处，并能够对多个拾音器件32是否有损坏进行检测以及能够对多个拾音器件32的位置进行调节，以确保多个拾音器件32接收到的声音强度一致，从而提高测试精度；测试时，由转动驱动机构22驱动产品支架21带动穿戴产品转动360度，转动的同时由拾音装置的多个拾音器件32将拾音情况实时反馈至测试系统，再通过测试系统形成球面声场分布图并对漏音区域进行区别标记，由于穿戴产品的声学系统处于多个拾音器件32形成的圆弧的圆心处，并且转动驱动机构22能够驱动穿戴产品转动360度，转过360度后相当于对穿戴产品的声学系统周侧的球面上的多个位置进行了漏音测试，能够准确快速的查找漏音位置，可以提高测试效率，本发明实施例的漏音测试方法解决了漏音位置查找不方便及测试效率低的问题。
以上所述仅为本发明的一些实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种漏音测试设备，其特征在于，包括产品支架、用于驱动所述产品支架转动的转动驱动机构以及拾音装置，所述拾音装置包括拾音支架、呈圆弧状依次排列并且安装在所述拾音支架上的多个拾音器件，所述圆弧的圆心设置在靠近所述产品支架的一侧，并且所述圆弧所在平面的垂线与所述产品支架的转动轴线垂直，每个所述拾音器件均沿所述圆弧的径向设置；还包括测试系统，所述转动驱动机构、多个所述拾音器件分别与所述测试系统电连接。
  2. 根据权利要求1所述的漏音测试设备，其特征在于，所述产品支架的转动轴线沿竖向设置；位于上端的一个所述拾音器件的设置方向与所述产品支架的转动轴线同向设置，位于下端的一个所述拾音器件的设置方向与所述产品支架的转动轴线之间设有锐角夹角α。
  3. 根据权利要求2所述的漏音测试设备，其特征在于，所述产品支架包括产品支撑件、设置在所述产品支撑件上端的放置台；所述拾音支架包括拾音支撑件、设置在所述拾音支撑件上的弧形安装架，多个所述拾音器件分别安装在所述弧形安装架上。
  4. 根据权利要求3所述的漏音测试设备，其特征在于，所述产品支架还包括固定在所述产品支撑件上的升降驱动机构，所述放置台固定在所述升降驱动机构的输出部上；在所述拾音支撑件上端固定有沿水平方向设置的平移驱动机构，所述弧形安装架固定在所述平移驱动机构的输出部。
  5. 根据权利要求3所述的漏音测试设备，其特征在于，在所述拾音支撑件上端固定有XY向平移驱动机构，所述弧形安装架固定在所述XY向平移驱动机构的输出部上。
  6. 根据权利要求3所述的漏音测试设备，其特征在于，所述产品支架还包括固定在所述产品支撑件上的XY向平移驱动机构，所述放置台固定在所述XY向平移驱动机构的输出部上。
  7. 根据权利要求3所述的漏音测试设备，其特征在于，在所述拾音支架上对应每个所述拾音器件处分别固定有沿所述圆弧的径向设置的伸缩调节机构，所述拾音器件固定在所述伸缩调节机构的输出部上。
  8. 根据权利要求4至7任一项所述的漏音测试设备，其特征在于，在位于上端的一个所述拾音器件的侧部设有竖向校准器，在位于水平方向的一个所述拾音器件的侧部设有水平校准器。
  9. 根据权利要求1所述的漏音测试设备，其特征在于，所述测试系统包括测试电脑，分别与所述测试电脑电连接的蓝牙连接器以及电控箱，多个所述拾音器件分别与所述电控箱电连接，所述转动驱动机构与所述测试电脑或者所述电控箱电连接。
  10. 一种漏音测试方法，其特征在于，基于权利要求8所述的漏音测试设备，包括以下步骤：
    步骤一、校准所述产品支架与所述拾音装置之间的相对位置
    将校准结构固定在所述产品支架上，由安装在所述拾音装置上的所述竖向校准器、所述水平校准器对所述校准结构进行检测，使所述校准结构的检测部位于所述圆弧的圆心处；
    步骤二、校准多个所述拾音器件的声压
    在所述校准结构的上端部安装球面声源，由所述球面声源向多个所述拾音器件发出声音，由所述测试系统根据多个所述拾音器件的反馈信号判断多个所述拾音器件是否有损坏，并根据多个所述拾音器件的反馈信号的强弱程度调节多个所述拾音器件与所述圆弧的圆心之间的相对位置；
    步骤三、测试漏音位置
    将所述球面声源、所述校准结构从所述产品支架上拆卸下，再将待测穿戴产品安放到所述产品支架上，由所述待测穿戴产品发出声音并由所述转动驱动机构驱动所述产品支架、所述待测穿戴产品转动360度，由多个所述拾音器件实时向所述测试系统反馈信号，由所述测试系统根据反馈信号生成球面声场分布图。
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