CN105928615A - Noise testing device - Google Patents
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Abstract
本发明提供了一种噪声测试装置。其中，该装置包括：标定机构；其中，标定机构包括标定体和支撑组件；标定体的第一端用于与变压器外壁相接触，标定体的第一端与变压器外壁相接触的接触面为第一接触面；支撑组件包括第一支撑体，第一支撑体的第一端与标定体相连接，第一支撑体的第二端用于安装噪声测试仪器，并且，第一支撑体的第二端与第一接触面之间的距离为第一预设距离，第一支撑体的高度为第一预设高度。本发明提供的噪声测试装置，通过预设测试高度和测试距离，使测试点的标定和噪声的测试同时进行，提高了噪声测试工作的效率。
The invention provides a noise testing device. Wherein, the device includes: a calibration mechanism; wherein, the calibration mechanism includes a calibration body and a support assembly; the first end of the calibration body is used to contact the outer wall of the transformer, and the contact surface between the first end of the calibration body and the outer wall of the transformer is the first A contact surface; the support assembly includes a first support body, the first end of the first support body is connected with the calibration body, the second end of the first support body is used to install the noise test instrument, and the second end of the first support body The distance between the end and the first contact surface is a first preset distance, and the height of the first support body is a first preset height. The noise testing device provided by the invention enables the calibration of test points and the testing of noise to be carried out simultaneously through preset testing height and testing distance, thereby improving the efficiency of noise testing.
Description
技术领域technical field
本发明涉及输变电技术领域，具体而言，涉及一种噪声测试装置。The invention relates to the technical field of power transmission and transformation, in particular to a noise testing device.
背景技术Background technique
目前，根据国家标准的要求，变压器的出厂测试包含一系列内容，其中就包括变压器的噪声声级测定。At present, according to the requirements of national standards, the factory test of transformers includes a series of contents, including the measurement of the noise level of transformers.
由于噪声测定工作对环境要求较高，大多需要在车间停工的情况下进行，而各变压器厂家在进行出厂噪声声级测定时，大多采用先标定测试点，并且各测试点和变压器外壁上的各被测点之间需满足一定的距离和高度的要求，再在各测试点进行噪声声级测试，可以看出，该种测试方法需要耗费大量的人工和时间，导致噪声测试工作效率很低。Due to the high environmental requirements for noise measurement, most of them need to be carried out when the workshop is shut down. When the transformer manufacturers measure the noise level of the factory, they mostly use the calibration of the test points first, and each test point and each on the outer wall of the transformer. The measured points need to meet certain distance and height requirements, and then carry out the noise sound level test at each test point. It can be seen that this test method requires a lot of labor and time, resulting in low noise test work efficiency.
发明内容Contents of the invention
鉴于此，本发明提出了一种噪声测试装置，旨在解决现有噪声测试方法需要耗费大量的人工和时间，导致噪声测试工作效率很低的问题。In view of this, the present invention proposes a noise testing device, aiming at solving the problem that the existing noise testing method consumes a lot of manpower and time, resulting in low noise testing work efficiency.
一个方面，本发明提出了一种噪声测试装置。该装置包括：标定机构；其中，所述标定机构包括标定体和支撑组件；所述标定体的第一端用于与所述变压器外壁相接触，所述标定体的第一端与所述变压器外壁相接触的接触面为第一接触面；所述支撑组件包括第一支撑体，所述第一支撑体的第一端与所述标定体相连接，所述第一支撑体的第二端用于安装噪声测试仪器，并且，所述第一支撑体的第二端与所述第一接触面之间的距离为第一预设距离，所述第一支撑体的高度为第一预设高度。In one aspect, the present invention provides a noise testing device. The device includes: a calibration mechanism; wherein, the calibration mechanism includes a calibration body and a support assembly; the first end of the calibration body is used to contact the outer wall of the transformer, and the first end of the calibration body is in contact with the transformer The contact surface where the outer wall contacts is the first contact surface; the support assembly includes a first support body, the first end of the first support body is connected with the calibration body, and the second end of the first support body It is used to install a noise testing instrument, and the distance between the second end of the first support body and the first contact surface is a first preset distance, and the height of the first support body is a first preset distance. high.
进一步地，上述噪声测试装置中，所述支撑组件还包括：第二支撑体；其中，所述第二支撑体和所述第一支撑体均置于所述标定体的同侧，所述第二支撑体的第一端与所述标定体相连接，所述第二支撑体的第二端用于安装噪声测试仪器，并且，所述第二支撑体的第二端与所述第一接触面之间的距离为第二预设距离，所述第二支撑体的高度为第二预设高度。Further, in the above-mentioned noise testing device, the support assembly further includes: a second support body; wherein, the second support body and the first support body are both placed on the same side of the calibration body, and the first support body The first ends of the two supports are connected to the calibration body, the second ends of the second supports are used for installing noise testing instruments, and the second ends of the second supports are in contact with the first The distance between the surfaces is a second preset distance, and the height of the second support body is a second preset height.
进一步地，上述噪声测试装置中还包括：多个横档；其中，所述标定机构至少为两个；各所述标定机构均并列设置，相邻所述标定机构之间的距离为第三预设距离，并且，相邻所述标定机构通过所述横档相连接。Further, the above-mentioned noise testing device also includes: a plurality of crosspieces; wherein, there are at least two calibration mechanisms; each calibration mechanism is arranged side by side, and the distance between adjacent calibration mechanisms is a third preset The distance is set, and the adjacent calibration mechanisms are connected through the crosspieces.
进一步地，上述噪声测试装置中，每个所述标定体的壁面均开设有相对于轴线对称的两个凹槽，所述凹槽用于与所述横档相插接。Further, in the above-mentioned noise testing device, two grooves symmetrical with respect to the axis are provided on the wall surface of each calibration body, and the grooves are used to be inserted into the crosspiece.
进一步地，上述噪声测试装置中还包括：缓冲垫；其中，所述缓冲垫连接于所述标定体的第一端，所述缓冲垫用于与所述变压器外壁相接触，所述缓冲垫与所述变压器外壁相接触的接触面为第二接触面，并且，所述第一支撑体的第二端与所述第二接触面之间的距离为第一预设距离，所述第二支撑体的第二端与所述第二接触面之间的距离为第二预设距离。Further, the above-mentioned noise testing device also includes: a buffer pad; wherein, the buffer pad is connected to the first end of the calibration body, the buffer pad is used to contact the outer wall of the transformer, and the buffer pad is connected to the outer wall of the transformer. The contact surface where the outer wall of the transformer contacts is the second contact surface, and the distance between the second end of the first support body and the second contact surface is a first preset distance, and the second support The distance between the second end of the body and the second contact surface is a second preset distance.
进一步地，上述噪声测试装置中，所述第一支撑体和所述第二支撑体均为可伸缩支撑体。Further, in the above-mentioned noise testing device, both the first support body and the second support body are stretchable support bodies.
进一步地，上述噪声测试装置中，所述第一支撑体的第二端和所述第二支撑体的第二端均设置有凹槽，所述凹槽用于安装噪声测试仪器。Further, in the above noise testing device, the second end of the first supporting body and the second end of the second supporting body are both provided with grooves, and the grooves are used for installing noise testing instruments.
进一步地，上述噪声测试装置中，所述第一支撑体垂直于所述标定体。Further, in the above-mentioned noise testing device, the first support body is perpendicular to the calibration body.
进一步地，上述噪声测试装置中，所述第二支撑体垂直于所述标定体。Further, in the above-mentioned noise testing device, the second support body is perpendicular to the calibration body.
进一步地，上述噪声测试装置中，所述标定体与所述支撑组件为可拆卸连接；和/或所述标定体与所述横档为可拆卸连接。Further, in the above-mentioned noise testing device, the calibration body is detachably connected to the support assembly; and/or the calibration body is detachably connected to the crosspiece.
本发明的噪声测试装置，第一支撑体的第二端安装噪声测试仪器，第一支撑体与第一接触面之间的距离为第一预设距离，第一支撑体的高度为第一预设高度，通过预设测试高度和测试距离使测试点的标定和噪声的测试同时进行，提高了噪声测试工作的效率。In the noise testing device of the present invention, a noise testing instrument is installed on the second end of the first support body, the distance between the first support body and the first contact surface is the first preset distance, and the height of the first support body is the first preset distance. Set the height, through the preset test height and test distance, the calibration of the test point and the test of the noise can be carried out at the same time, which improves the efficiency of the noise test.
附图说明Description of drawings
通过阅读下文优选实施方式的详细描述，各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的，而并不认为是对本发明的限制。而且在整个附图中，用相同的参考符号表示相同的部件。在附图中：Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiment. The drawings are only for the purpose of illustrating a preferred embodiment and are not to be considered as limiting the invention. Also throughout the drawings, the same reference numerals are used to designate the same parts. In the attached picture:
图1为本发明实施例提供的噪声测试装置的主视图；Fig. 1 is the front view of the noise testing device provided by the embodiment of the present invention;
图2为本发明实施例提供的噪声测试装置的俯视图。Fig. 2 is a top view of the noise testing device provided by the embodiment of the present invention.
具体实施方式detailed description
下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例，然而应当理解，可以以各种形式实现本公开而不应被这里阐述的实施例所限制。相反，提供这些实施例是为了能够更透彻地理解本公开，并且能够将本公开的范围完整的传达给本领域的技术人员。需要说明的是，在不冲突的情况下，本发明中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本发明。Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
参见图1，图1为本发明实施例提供的噪声测试装置的主视图。如图所示，该噪声测试装置包括：标定机构1。Referring to FIG. 1 , FIG. 1 is a front view of a noise testing device provided by an embodiment of the present invention. As shown in the figure, the noise testing device includes: a calibration mechanism 1 .
其中，标定机构1包括标定体11和支撑组件12，标定体11的第一端(图1所示的左端)用于与变压器2外壁相接触，标定体11的第一端与变压器2外壁相接触的接触面为第一接触面，具体实施时，标定体11可以为钢管。Wherein, the calibration mechanism 1 includes a calibration body 11 and a support assembly 12, the first end of the calibration body 11 (the left end shown in Figure 1 ) is used to contact the outer wall of the transformer 2, and the first end of the calibration body 11 is in contact with the outer wall of the transformer 2 The contacting surface is the first contacting surface, and in practice, the calibration body 11 may be a steel pipe.
支撑组件12包括第一支撑体121，第一支撑体121的第一端(图1所示的下端)与标定体11相连接，第一支撑体121的第二端(图1所示的上端)为测试点5，第一支撑体121的第二端可以设置有凹槽，也可以设置有平台，噪声测试仪器可以放置于凹槽或者平台进行噪声测试。第一支撑体121的第二端与第一接触面之间的距离为第一预设距离S1，第一支撑体121的高度为第一预设高度h1，根据GB/T 1904.10-2003的要求，第一预设距离S1可以为0.3m，第一预设高度h1可以为变压器2高度的1/3，具体实施时，第一支撑体121也可以为钢管，优选地，第一支撑体121垂直于标定体11。The support assembly 12 includes a first support body 121, the first end (the lower end shown in Figure 1 ) of the first support body 121 is connected with the calibration body 11, and the second end (the upper end shown in Figure 1 ) of the first support body 121 ) is the test point 5, the second end of the first support body 121 can be provided with a groove, or a platform, and the noise testing instrument can be placed on the groove or the platform for noise testing. The distance between the second end of the first support body 121 and the first contact surface is the first preset distance S 1 , and the height of the first support body 121 is the first preset height h 1 , according to GB/T 1904.10-2003 requirements, the first preset distance S 1 can be 0.3m, and the first preset height h 1 can be 1/3 of the height of the transformer 2. In specific implementation, the first support body 121 can also be a steel pipe. Preferably, the first A supporting body 121 is perpendicular to the calibration body 11 .
测试时，将标定体11的第一端与变压器2的外壁相接触，由于第一支撑体121的第一预设高度h1即为测试点5相对于被测点的高度，满足测试点5与被测点之间的高度要求，第一支撑体121的第二端与第一接触面之间的第一预设距离S1即为测试点5相对于被测点的距离，满足测试点5与被测点之间的距离要求，所以只需在第一支撑体121的第二端安装噪声测试仪器即可进行噪声测试，通过预设测试高度和测试距离，使测试点的标定和噪声的测试同时进行，提高了噪声测试工作的效率。During the test, the first end of the calibration body 11 is brought into contact with the outer wall of the transformer 2. Since the first preset height h1 of the first support body 121 is the height of the test point 5 relative to the measured point, the test point 5 is satisfied. The height requirement between the measured point and the first preset distance S1 between the second end of the first support body 121 and the first contact surface is the distance between the test point 5 and the measured point, which satisfies the test point 5 and the distance between the measured point, so only need to install the noise testing instrument on the second end of the first support body 121 to carry out the noise test, by presetting the test height and test distance, the calibration of the test point and the noise The test is carried out at the same time, which improves the efficiency of the noise test work.
上述实施例中，支撑组件12还可以包括：第二支撑体122。其中，第二支撑体122和第一支撑体121均置于标定体1的同侧且第一支撑体121和第二支撑体122均置于标定体11的同一条母线，第二支撑体122的第一端(图1所示的下端)与标定体11相连接，第二支撑体122的第二端(图1所示的上端)为测试点6，第二支撑体122的第二端可以设置有凹槽，也可以设置有平台，噪声测试仪器可以放置于凹槽或者平台进行噪声测试，并且，第二支撑体122的第二端与第一接触面之间的距离为第二预设距离S2，第二支撑体122的高度为第二预设高度h2，根据GB/T 1904.10-2003的要求，第一预设距离S2可以为2m，第一预设高度h2可以为变压器2高度的2/3，具体实施时，第二支撑体122也可以为钢管，优选地，第一支撑体121垂直于标定体11。In the above embodiments, the supporting assembly 12 may further include: a second supporting body 122 . Wherein, the second support body 122 and the first support body 121 are all placed on the same side of the calibration body 1 and the first support body 121 and the second support body 122 are all placed on the same busbar of the calibration body 11, the second support body 122 The first end (the lower end shown in Figure 1) of the second support body 122 is connected to the calibration body 11, the second end (the upper end shown in Figure 1 ) of the second support body 122 is the test point 6, and the second end of the second support body 122 A groove or a platform may be provided, and the noise testing instrument may be placed on the groove or the platform for noise testing, and the distance between the second end of the second supporting body 122 and the first contact surface is a second predetermined distance. Assuming the distance S 2 , the height of the second support body 122 is the second preset height h 2 . According to the requirements of GB/T 1904.10-2003, the first preset distance S 2 can be 2m, and the first preset height h 2 can be It is 2/3 of the height of the transformer 2 . In practice, the second support body 122 can also be a steel pipe. Preferably, the first support body 121 is perpendicular to the calibration body 11 .
测试时，将标定体11的第一端与变压器2的外壁相接触，由于第二支撑体122的第二预设高度h2即为测试点6相对于被测点的高度，满足测试点6与被测点之间的高度要求，第二支撑体122的第二端与第一接触面之间的第二预设距离S2即为测试点6相对于被测点的距离，满足测试点6与被测点之间的距离要求，所以只需在第二支撑体122的第二端均安装噪声测试仪器即可进行噪声测试，通过预设测试高度和测试距离，使测试点的标定和噪声的测试同时进行，提高了噪声测试工作的效率。During the test, the first end of the calibration body 11 is brought into contact with the outer wall of the transformer 2. Since the second preset height h2 of the second support body 122 is the height of the test point 6 relative to the measured point, the test point 6 is satisfied. The height requirement between the measured point and the second preset distance S2 between the second end of the second support body 122 and the first contact surface is the distance between the test point 6 and the measured point, which satisfies the test point 6 and the distance between the measured point, so the noise test can be performed by installing a noise test instrument at the second end of the second support body 122. By presetting the test height and test distance, the calibration of the test point and The noise test is carried out at the same time, which improves the efficiency of the noise test work.
参见图2，图2为本发明实施例提供的噪声测试装置的俯视图。如图所示，上述实施例中还可以包括多个横档3。其中，标定机构1至少为两个，各标定机构1均并列设置，相邻标定机构1之间的距离为第三预设距离S3，根据GB/T1904.10-2003的要求，第三预设距离S3可以为1m，并且，还可以在每一个标定体11的壁面开设有相对于轴线对称的凹槽(图中未示出)，凹槽用于与横档3相插接，也就是说，横档3的两端可以分别置于相邻标定体11相对侧的凹槽内，相邻标定机构1通过横档3相连接，也就是说，横档3长为1m且位于相邻的两个标定机构1之间，具体实施时，横担3也可以为钢管。Referring to FIG. 2, FIG. 2 is a top view of a noise testing device provided by an embodiment of the present invention. As shown in the figure, the above embodiment may also include a plurality of crosspieces 3 . Among them, there are at least two calibration mechanisms 1, and each calibration mechanism 1 is arranged side by side. The distance between adjacent calibration mechanisms 1 is the third preset distance S 3 . According to the requirements of GB/T1904.10-2003, the third preset distance Suppose the distance S3 can be 1m, and a groove (not shown) symmetrical to the axis can also be provided on the wall surface of each calibration body 11, the groove is used for inserting with the crosspiece 3 , and also That is to say, the two ends of the crosspiece 3 can be respectively placed in the grooves on the opposite sides of the adjacent calibration bodies 11, and the adjacent calibration mechanisms 1 are connected by the crosspiece 3, that is to say, the crosspiece 3 is 1 m long and located on the opposite side. Between the two adjacent calibration mechanisms 1, during specific implementation, the cross arm 3 can also be a steel pipe.
本实施例中，相邻标定机构1之间的距离为第三预设距离S3即为测试位置间隔距离，相邻标定机构1通过横档3相连接，通过预设测试位置间隔，使多个测试点的标定和噪声的测试可以同时进行，提高了噪声测试工作的效率。In this embodiment, the distance between adjacent calibration mechanisms 1 is the third preset distance S. 3 is the distance between test positions. Adjacent calibration mechanisms 1 are connected by crosspieces 3. The calibration of each test point and the noise test can be carried out at the same time, which improves the efficiency of the noise test work.
继续参见图2，以标定机构1为两个为例介绍该噪声测试装置的工作过程。测试时，将该噪声测试仪器展开，将两个标定体11的第一端均与变压器2的外壁的相接触，在置于下方(相对于图2所示位置而言)的标定体11的第一支撑体121的第二端和第二支撑体122的第二端均安装噪声测试仪器，同时进行第一测试位置的测试点5和测试点6的噪声测试，第一测试位置的噪声测量完毕后，将噪声测试仪器转至到第二测试位置，即安装在置于上方的标定体11的第一支撑体121的第二端和第二支撑体122的第二端，完成第二测试位置的测试点5和测试点6的噪声测试，然后将第一测试位置的标定体1和横档3拆卸，将第一测试位置的标定体11置于第三测试位置，将横档3的两端分别置于第二测试位置的标定体11和第三测试位置的标定体11相对侧的凹槽内，如此反复，直到完成对变压器2整圈的噪声测试。Continuing to refer to FIG. 2 , the working process of the noise testing device is introduced by taking two calibration mechanisms 1 as an example. During the test, the noise testing instrument is launched, and the first ends of the two calibration bodies 11 are all in contact with the outer wall of the transformer 2, and placed in the bottom (relative to the position shown in Figure 2) of the calibration body 11. The second end of the first supporting body 121 and the second end of the second supporting body 122 all install noise testing instrument, carry out the noise test of the test point 5 of the first test position and test point 6 simultaneously, the noise measurement of the first test position After the completion, the noise tester is transferred to the second test position, which is installed on the second end of the first support body 121 and the second end of the second support body 122 of the calibration body 11 placed above, and completes the second test The noise test of test point 5 and test point 6 at the first test position, then disassemble the calibration body 1 and the crosspiece 3 at the first test position, place the calibration body 11 at the first test position at the third test position, and place the crosspiece 3 at the third test position. The two ends are respectively placed in the grooves on the opposite sides of the calibration body 11 at the second test position and the calibration body 11 at the third test position, and this is repeated until the noise test of the entire turn of the transformer 2 is completed.
上述实施例中还可以包括缓冲垫4。其中，缓冲垫4连接于标定体11的第一端，缓冲垫4用于与变压器2外壁相接触，缓冲垫4与变压器2外壁相接触的接触面为第二接触面，并且，第一支撑体121的第二端与第二接触面之间的距离为第一预设距离S1，第二支撑体122的第二端与第二接触面之间的距离为第二预设距离S2，也就是说，当标定体11的第一端连接有缓冲垫4时，第一预设距离S1和第二预设距离S2均应在标定体11的第一端没有连接缓冲垫4的情况下加上缓冲垫4所占用的距离。The above embodiments may also include a buffer pad 4 . Wherein, the buffer pad 4 is connected to the first end of the calibration body 11, the buffer pad 4 is used to contact the outer wall of the transformer 2, the contact surface of the buffer pad 4 and the outer wall of the transformer 2 is the second contact surface, and the first support The distance between the second end of the body 121 and the second contact surface is a first preset distance S 1 , and the distance between the second end of the second support body 122 and the second contact surface is a second preset distance S 2 , that is to say, when the first end of the calibration body 11 is connected with the buffer pad 4, the first preset distance S1 and the second preset distance S2 should be that the first end of the calibration body 11 is not connected with the buffer pad 4 Add the distance occupied by the buffer pad 4 under the situation.
本实施例中，缓冲垫4连接于标定体11的第一端，可以减小变压器2传递给该噪声测试装置的振动，提高了测试的准确度。In this embodiment, the buffer pad 4 is connected to the first end of the calibration body 11, which can reduce the vibration transmitted from the transformer 2 to the noise testing device and improve the testing accuracy.
上述实施例中，第一支撑体121和第二支撑体122均为可伸缩支撑体，第一支撑体121和第二支撑体122的高度可以根据变压器2的高度自行调节。In the above embodiment, both the first support body 121 and the second support body 122 are retractable support bodies, and the heights of the first support body 121 and the second support body 122 can be adjusted according to the height of the transformer 2 .
本实施例中，第一支撑体121和第二支撑体122均为可伸缩支撑体，当变压器2的高度不同时，无需更换第一支撑体121和第二支撑体122，调节第一支撑体121和第二支撑体122的高度即可，提高了噪声测试工作的效率。In this embodiment, both the first support body 121 and the second support body 122 are retractable support bodies. When the height of the transformer 2 is different, there is no need to replace the first support body 121 and the second support body 122, and the adjustment of the first support body 121 and the height of the second support body 122, which improves the efficiency of the noise test work.
上述实施例中，标定体11与支撑组件12为可拆卸连接，标定体11与横档3为也可拆卸连接，具体实施时，标定体11与支撑组件12可以为插接，标定体11与横档3也可以为插接，也可以为其他的可拆卸连接，具体的连接方式可以根据实际情况来确定，本实施例对其不做任何限定。In the above-mentioned embodiment, the calibration body 11 is detachably connected to the support assembly 12, and the calibration body 11 is also detachably connected to the crosspiece 3. The crosspiece 3 can also be a plug-in connection, or can be other detachable connections, and the specific connection method can be determined according to the actual situation, which is not limited in this embodiment.
本实施例中，标定体11与支撑组件12为可拆卸连接，标定体11与横档3为也可拆卸连接，使得该噪声测试装置方便组装、拆卸与携带。In this embodiment, the calibration body 11 is detachably connected to the support assembly 12, and the calibration body 11 is also detachably connected to the crosspiece 3, so that the noise testing device is convenient to assemble, disassemble and carry.
综上，本实施例中的噪声测试装置，第一支撑体121的第二端安装噪声测试仪器2，第一支撑体121与第一接触面之间的距离为第一预设距离S1，第一支撑体121的高度为第一预设高度h1，通过预设测试高度和测试距离，使测试点的标定和噪声的测试同时进行，提高了噪声测试工作的效率。To sum up, in the noise testing device in this embodiment, the noise testing instrument 2 is installed on the second end of the first support body 121, and the distance between the first support body 121 and the first contact surface is the first preset distance S 1 , The height of the first support body 121 is the first preset height h 1 , and the calibration of the test points and the noise test can be performed simultaneously through the preset test height and test distance, which improves the efficiency of the noise test.
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and equivalent technologies thereof, the present invention also intends to include these modifications and variations.
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Application publication date: 20160907 |