CN101867863A - Audio test system - Google Patents
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- CN101867863A CN101867863A CN 201010186627 CN201010186627A CN101867863A CN 101867863 A CN101867863 A CN 101867863A CN 201010186627 CN201010186627 CN 201010186627 CN 201010186627 A CN201010186627 A CN 201010186627A CN 101867863 A CN101867863 A CN 101867863A
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Abstract
The invention discloses an audio test system, which comprises a head and shoulder simulator. The head and shoulder simulator comprises a head and shoulder simulator body and a test holder which are mutually connected; and the test holder comprises a fixing device fixed on the shoulder or the trunk below the shoulder of the head and shoulder simulator body, a translation device rotationally connected with the fixing device, a clamping device which is rotationally connected with the translation device and of which the tail end clamps a mobile terminal, and a mobile terminal test device used for performing audio test on the mobile terminal clamped by the head and shoulder simulator. The audio test system has the advantages of simple structure, safety, reliability, low economic cost, low manufacturing time cost, simple audio processing, precise processing results, and short processing time.
Description
Technical field
The present invention relates to a kind of audio test system, relate in particular to a kind of audio test system that is used for the audio frequency of mobile terminal test.
Background technology
Portable terminal, for example mobile phone and PDA etc. are used for communicating by letter the portable terminal of usefulness in the process of research and development, all need to test, and especially sound that portable terminal sent and the ability that receives sound are tested, carry out analyzing and processing then, obtain the test result of portable terminal.
And the effect of mobile terminal test device is for fixing portable terminal on head shoulder simulator is tested, for example from the beginning the sound that sends of portable terminal microphone takeed on simulator and received, perhaps a sound that the shoulder simulator sends receives from the mobile terminal test device, thereby comes measuring the test result of portable terminal by the processing to voice signal.
The structure of existing audio test system is all very complicated, so failure rate is very high, and the needed time cost of process of manufacture is also very high, thereby causes Financial cost can not to be in any more.
Summary of the invention
In order to solve the defective of above-mentioned prior art, the invention provides a kind of audio test system, this audio test system is simple, safe and reliable, Financial cost is low, safe and reliable, and Audio Processing is simple, result is accurate and the processing time short.
For achieving the above object, the embodiment of the invention provides a kind of audio test system, and described audio test system comprises:
Shoulder simulator, described shoulder simulator comprises interconnected shoulder simulator body and test bracket, described test bracket specifically comprises: fixture is fixed on described shoulder simulator body shoulder or described the trunk that shoulder simulator body shoulder is following; Translation device is rotationally connected with described fixture; Clamping device is rotationally connected with described translation device, the terminal clamping portable terminal of described clamping device;
The mobile terminal test device is used for the described portable terminal of described shoulder simulator clamping is carried out audio-frequency test;
Frequency test system structure of the present invention is simple, safe and reliable, Financial cost is low, and the time cost of manufacturing is low, and safe and reliable, and Audio Processing is simple, result is accurate and the processing time short.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic diagram of audio test system of the present invention;
Fig. 2 is the structural representation of a shoulder simulator of audio test system of the present invention;
The cutaway view in first joint of a shoulder simulator of audio test system of the present invention shown in Figure 3;
The cutaway view of the translation control device of a shoulder simulator of audio test system of the present invention shown in Figure 4;
The cutaway view of the second joint of a shoulder simulator of audio test system of the present invention shown in Figure 5;
The cutaway view in the 3rd joint of a shoulder simulator of audio test system of the present invention shown in Figure 6;
Fig. 7 is the structural representation of the portable terminal clamper 233 of a shoulder simulator of audio test system of the present invention;
Fig. 8 is the schematic diagram of the mobile terminal test device embodiment one of audio test system of the present invention;
Fig. 9 is the schematic diagram of the mobile terminal test device embodiment two of audio test system of the present invention;
Figure 10 is the schematic diagram of the memory of the mobile terminal test device of audio test system of the present invention;
Figure 11 is the schematic diagram of the audio receiver of the mobile terminal test device of audio test system of the present invention;
Figure 12 is the schematic diagram of the analog to digital converter of the mobile terminal test device of audio test system of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Fig. 1 is the schematic diagram of audio test system of the present invention, and as shown in the figure, audio test system of the present invention specifically comprises interconnected shoulder simulator 8 and mobile terminal test device 9.
Fig. 2 is the structural representation of a shoulder simulator of audio test system of the present invention, and as shown in the figure, a shoulder simulator of audio test system of the present invention specifically comprises a shoulder simulator body 1 and a test bracket 2, and test bracket 2 is connected with a shoulder simulator body 1.Test bracket 2 specifically comprises fixture 21, translation device 22 and clamping device 23.Fixture 21 is fixed on shoulder simulator body 1 shoulder or the following trunk of a shoulder simulator body shoulder; Translation device 22 is rotationally connected with fixture 21; Clamping device 23 is rotationally connected the terminal clamping portable terminal of clamping device 23 with translation device 22.
Again as shown in Figure 2, fixture 21 comprises the fixed lever 211 and first joint 212, and translation device 22 comprises translation control device 221 and second joint 222, and clamping device 23 comprises Y-axis turning handle 231, the 3rd joint 232 and portable terminal clamper 233.
Concrete, fixed lever 211 is fixed on shoulder simulator body 1 shoulder or the following trunk of a shoulder simulator body shoulder, cutaway view referring to first joint of a shoulder simulator of audio test system of the present invention shown in Figure 3, first joint 212 comprises that the first arthrodesis portion 214 and rotation section, first joint 215, the first arthrodesis portions 214 are fixed on the fixed lever 211; Cutaway view referring to the translation control device of a shoulder simulator of audio test system of the present invention shown in Figure 4, translation control device 221 comprises housing 2210 and translation shaft 2211, translation shaft 221 is contained in the housing 220, and housing 220 is connected with the rotation section, first joint 215 in first joint 212; Cutaway view referring to the second joint of a shoulder simulator of audio test system of the present invention shown in Figure 5, second joint 222 comprises second joint fixed part 225 and second joint rotation section 226, and second joint fixed part 225 is connected with the translation shaft 221 of translation control device 221; Y-axis turning handle 231 is connected with the second joint rotation section 226 of second joint 222; Referring to the cutaway view in the 3rd joint of a shoulder simulator of audio test system of the present invention shown in Figure 6, the 3rd joint 232 comprises that the 3rd arthrodesis portion 235 and rotation section, the 3rd joint 236, the three arthrodesis portions 235 are connected with Y-axis turning handle 231; Portable terminal clamper 233 is connected with the rotation section, the 3rd joint 236 in the 3rd joint 22.
Again as shown in Figure 3, the rotation section, first joint 215 in first joint 212 comprises and is connected to each other rotation section, first joint body 2150 and rotation section, the first joint rotation axis, 2151, the first joint body 2150 is connected with the housing 220 of translation control device 221.The first arthrodesis portion 214 comprises the first arthrodesis portion body 2140, bearing 2141, butterfly spring 2142 and clamp nut 2143.
The first arthrodesis portion body 2140 is set in the first joint rotation axis, 2151 outsides, fixes with head shoulder simulator body 1; Bearing 2141, butterfly spring 2142 and clamp nut 2143 are set in the first joint rotation axis, 2151 outsides.
Again as shown in Figure 4, translation control device 221 comprises housing 2210, translation shaft 2211, retainer plate 2213, bearing 2214, axle sleeve 2215, navigation button 2216 and pressure regulator 2217.
Retainer plate 2213 is contained in the housing 2210, is socketed in outside the translation shaft 2211; Bearing 2214 and axle sleeve 2215 are contained in the housing 2210, are socketed in successively outside the translation shaft 2211; Navigation button 226 is fixed on the housing 2210, connects with translation shaft 2211; Pressure regulator 2217 is connected with translation shaft 2211; Linear potentiometer 2218 is connected with translation shaft 2211.
Housing 2210 is connected with rotation section, first joint body 2150 in first joint 212 by X-axis turning handle 24.Translation control device 221 is to control second joints 222 translations with cause translation shaft 221, and pressure regulator 2217 is stress induction devices, measures the translatory distance of translation shaft 2211 by measuring stress.
Again as shown in Figure 5, the second joint rotation section 226 of second joint 222 comprises and is connected to each other second joint rotation section body 2260 and second joint rotation axis 2261 that second joint rotation section body 2261 is connected with the Y-axis turning handle.
Second joint fixed part 225 comprises second joint fixed part body 2250, bearing 2251, butterfly spring 2252 and clamp nut 2253.Second joint fixed part body 2250 is set in second joint rotation axis 2261 outsides, is connected with the translation shaft 221 of translation control device 221; Bearing 2251, butterfly spring 2252 and clamp nut 2253 are set in second joint rotation axis 2261 outsides.
Again as shown in Figure 6, the rotation section, the 3rd joint 236 in the 3rd joint 232 comprises and is connected to each other rotation section, the 3rd joint body 2360 and rotation section, the 3rd joint rotation axis 2361, the three joint body 2360 is connected with portable terminal clamper 233; The 3rd arthrodesis portion 235 comprises: the 3rd arthrodesis portion body 2350, be set in the 3rd joint rotation axis 2361 outsides, and be connected with Z axle turning handle; Bearing 2351, butterfly spring 2352 and clamp nut 2353 are set in the 3rd joint rotation axis 2361 outsides.
The 3rd joint 232 is Z axle joint, its objective is the rotation that is implemented on the Z axle.
Fig. 7 is the structural representation of the portable terminal clamper of a shoulder simulator of audio test system of the present invention, and as shown in the figure, portable terminal clamper 233 comprises clamper body 2330 and level governor 2332; Can also comprise height adjuster and reference fixture in addition.Height adjuster is fixed on the clamper body 2330, and level governor 2332 also is fixed on the clamper body 2330.Reference fixture is fixed on the clamper body 2330.
Fix tested mobile terminal and portable terminal height and horizontal fixed reference fixture, by regulating the clamper horizontal fixed adjusting knob of level governor, height secured adjusted knob with level governor, make tested mobile terminal receiver center with reference to the stationary fixture center-aligned and press close to reference to stationary fixture, remove then with reference to the laggard line correlation project testing of stationary fixture.
Fig. 2 and shown in Figure 4 for another example, a shoulder simulator also comprises slide rail 3, is fixed on the shoulder simulator body 1; Translation control device 221 also comprises pulley 2219, connects on the housing 220 that is located at translation control device 221, establishes with slide rail 3 is sliding mutually.
Utilize the maintenance head of the present invention that the slip of pulley 2219 on slide rail 3 can be better to take on the structural stability of simulator like this, and prevent distortion, need not carry out counterweight.
There is a shoulder simulator also to comprise horizontal indicator 4 again, is fixed on the shoulder simulator body 1, be used for whether level of an expression shoulder simulator.
The concrete test process that utilizes head shoulder simulator of the present invention to carry out mobile test is: fix tested mobile terminal on the portable terminal clamper, and the height of portable terminal and horizontal fixed reference fixture, by regulating clamper horizontal fixed adjusting knob and height secured adjusted knob, make tested mobile receiver center and reference fixture center-aligned and press close to reference fixture, after removing reference fixture then, carry out the relevant item test by supporting upper computer software.
And particular location and angle according to the test needs by regulating first joint, second joint, the 3rd joint peace dynamic control device, thereby control " X-axis rotary handle ", " Y-axis rotary handle ", " Z axle rotary handle " and " control translation device " are realized.
Of the present invention shoulder simulator cooperates the audio frequency of mobile terminal analyzer to carry out following project testing to portable terminal:
Send loudness rating, receive loudness rating, STMR, transmit distortion, reception distortion, send idle level, the idle level of reception and return loss.
Fig. 8 is the schematic diagram of the mobile terminal test device embodiment one of audio test system of the present invention, and mobile terminal test device embodiment one of the present invention as shown in the figure specifically comprises: central processing unit (CPU) 100, measuring signal generator 200, power amplifier 300, audio-frequency generator 400, audio receiver 500 and analog to digital converter 600.Central processing unit (CPU) 100 is connected with measuring signal generator 200, power amplifier 300, audio receiver 500 and analog to digital converter 600 respectively, and audio-frequency generator 400 is connected with power amplifier 300.
In the time of work, central processing unit 100 control measuring signal generators 200 produce the audio-frequency test signal, central processing unit 100 with the audio-frequency test signal that measuring signal generator 200 produces send to mobile terminal test device interface 110, central processing unit 100 returns the signals collecting that receives to central processing unit 100 by digital to analog converter 600, central processing unit 100 is handled the audio signal after the digital-to-analogue conversion.
In addition, central processing unit can send to the audio-frequency test signal in the power amplifier 300, by power amplifier 300 the audio-frequency test signal is carried out processing and amplifying, send to then in the audio-frequency generator 400, with voice playing, audio-frequency generator 400 can be received the audio frequency of playing by the mobile phone of test by audio-frequency generator 400.
The audio interface time receiving, the testing mobile phone audio plays, by audio receiver 500 the audio interface midwifery of testing mobile phone is become simulated audio signal, then this simulated audio signal is sent in the central processing unit 100, central processing unit 100 sends to analog to digital converter 600 with simulated audio signal, analog to digital converter 600 is converted to digital audio and video signals with simulated audio signal, handles these digital audio and video signals by central processing unit 100 again.
Fig. 9 is the schematic diagram of the mobile terminal test device embodiment two of audio test system of the present invention, and mobile terminal test device embodiment two of the present invention as shown in the figure specifically comprises: central processing unit (CPU) 100, measuring signal generator 200, power amplifier 300, audio-frequency generator 400, audio receiver 500, analog to digital converter 600, sine-wave generator 700, memory 800, test loop 900, mobile terminal test device interface 110, reseting module 120 and usb 1 30.
Central processing unit (CPU) 100 is connected with measuring signal generator 200, power amplifier 300, audio-frequency generator 400, audio receiver 500, analog to digital converter 600, sine-wave generator 700, memory 800, mobile terminal test device interface 110, reseting module 120 and usb 1 30 respectively.Test loop 900 is connected with analog to digital converter 600.
Usb 1 30 is connected with central processing unit 100, and its effect is the interface that central processing unit 100 and exterior PC communicate, and reseting module 120 is connected with central processing unit 100, and its effect is the control that resets.
Figure 10 is the schematic diagram of the memory of the mobile terminal test device of audio test system of the present invention, the memory 800 of mobile terminal test device of the present invention as shown in the figure specifically comprises: EEROM (EEPROM (Electrically Erasable Programmable Read Only Memo)) 810 and internal memory DDR2 RAM820 are connected with central processing unit 100 respectively.The capacity of EEROM810 is 4MByte, the data and the instruction of stored program operation, the rectification building-out data that also can store mobile terminal test device of the present invention simultaneously.The capacity of RAM820 is 256MByte, and speed is DDR2-667MHz, is used for storage of collected data and intermediate operations result.
Figure 11 is the schematic diagram of the audio receiver of the mobile terminal test device of audio test system of the present invention, the audio receiver 500 of mobile terminal test device of the present invention as shown in the figure specifically comprises: left side microphone 510 and right side microphone 520 are connected with central processing unit 100 respectively.
Figure 12 is the schematic diagram of the analog to digital converter of the mobile terminal test device of audio test system of the present invention, the analog to digital converter 600 of mobile terminal test device of the present invention as shown in the figure specifically comprises: left side analog to digital converter 610 and right side analog to digital converter 620 are connected with central processing unit 100 respectively.
Audio-frequency generator 400 is to be positioned at a mouth of shoulder simulator, as the pronunciation device of artificial mouth.Because a shoulder simulator has left side and right side ears, therefore need two microphones, left side microphone 510 is positioned at the left side ear of a shoulder simulator, can gather the voice that left ear receives; Right side microphone 520 is positioned at the right side ear of a shoulder simulator, can gather the voice that auris dextra receives, all as audio receiver.
Sine-wave generator 700 and measuring signal generator 200 can be controlled direct injecting power amplifier 300 and mobile terminal test device interface 110 by CPU by test loop.Sound signal collecting carries out the modulus collection by left side microphone 510 and right side microphone 520 and mobile terminal test interface 110.And RFT changes and other computings are finished in central processing unit 100, the result is stored in memory 800 or outputs in the computer.
The work of the analog to digital converter of concrete mobile terminal test device of the present invention is as follows: measuring signal generator 200 produces the audio-frequency test signal, the audio-frequency test signal is sent in the central processing unit 100, central processing unit sends to the audio-frequency test signal in the power amplifier 300, by power amplifier 300 the audio-frequency test signal is carried out processing and amplifying, send to then in the audio-frequency generator 400, by audio-frequency generator 400 in the simulation mouth of head shoulder simulator with voice playing, audio-frequency generator 400 receives the audio frequency the play portable terminal by test.
The audio interface time receiving, be positioned at the pick up the ears testing mobile terminal audio plays of portion of a shoulder simulator one, the left side microphone 510 that is positioned at the left side ear of a shoulder simulator can be gathered the audio frequency that left ear receives, and the right side microphone 520 that is positioned at the right side ear of a shoulder simulator can be gathered the audio frequency that auris dextra receives.The analog audio data that left side microphone 510 produces sends to left side analog to digital converter 610 by central processing unit 100 and carries out analog-to-digital conversion, sound becomes digital audio-frequency data to send it back central processing unit 100, the analog audio data that right side microphone 520 produces sends to right side analog to digital converter 620 by central processing unit 100 and carries out analog-to-digital conversion, sound becomes digital audio-frequency data to send it back central processing unit 100, handles this digital audio-frequency data by central processing unit 100 again.
Mobile terminal test device interface 110 is connected with the mobile phone comprehensive tester CMU200 of outside, and mobile phone comprehensive tester CMU200 does electricity-electricity such as the encoding and decoding modulation conversion of system simulation wireless channel.
Other main content measurements and test process are as follows:
The process that sends the loudness signal test is: white noise/P.50/P.501/ test signal sends to the audio-frequency generator 400 in the artificial mouth, the MIC acceptance test audio signal of tested mobile terminal, CMU200-OUT receives the test audio signal that tested mobile terminal receives then, carry out the analog-to-digital conversion sampling by analog to digital converter 600 again, send loudness rating by calculating at last.
The process that receives the loudness signal test is: white noise/P.50/P.501 test signal sends to CMU200-IN, send to the SPK of tested mobile terminal then, after receiving by the audio receiver in the artificial ear 500 again, audio signal is sent to analog to digital converter 600 carry out the analog-to-digital conversion sampling, receive loudness rating by calculating at last.
The process of sidetone loudness signal test is: white noise/P.50/P.501 test signal sends to the audio-frequency generator 400 in the artificial mouth, again by the MIC-tested mobile terminal of tested mobile terminal-and artificial ear in audio receiver 500 receive and send to analog to digital converter 600 and carry out the analog-to-digital conversion sampling, calculate STMR at last.
The test process that sends idle level is; Idle test signal sends to the audio-frequency generator 400 in the artificial mouth, sends to CMU200-OUT by the MIC received audio signal of tested mobile terminal, then audio signal is sent to analog to digital converter 600 and carries out the analog-to-digital conversion sampling, last calculating noise level.
The test process that receives idle level is; Idle test signal sends to CMU200-IN, and the SPK by tested mobile terminal is received by the audio receiver in the artificial ear 500, carry out the analog-to-digital conversion sampling through analog to digital converter 600 after, calculate (A weighted) noise level.
The test process of transmit distortion is; The sinusoidal signal of 1020Hz sends to the audio-frequency generator 400 in the artificial mouth, MIC received audio signal by tested mobile terminal sends to CMU200-OUT, then audio signal is sent to analog to digital converter 600 and carry out the analog-to-digital conversion sampling, calculate the total distortion power ratio at last.
The test process that receives distortion is; The 1020Hz sinusoidal signal sends to CMU200-IN, and the SPK by tested mobile terminal receives again, and the audio receiver 500 in the artificial ear receives audio signal and carries out the analog-to-digital conversion sampling through analog to digital converter 600, calculates the total distortion power ratio at last.
The return loss test process is; Logarithm many sinusoidal signals at interval sends to CMU200-IN, sends to CMU200-OUT by tested mobile terminal again, carries out the analog-to-digital conversion sampling through analog to digital converter 600, calculates the terminal coupling loss of weighting at last.
Except that providing calculated value, can also provide the signal processing results frequency spectrum simultaneously in these processing procedures, deliver to PC in the lump and make display analysis.
Mobile terminal test apparatus structure of the present invention is simple, can utilize single-chip microcomputer to realize, and safe and reliable, and processing is simple, result is accurate and the processing time is short.
Frequency test system structure of the present invention is simple, safe and reliable, Financial cost is low, and the time cost of manufacturing is low, and safe and reliable, and Audio Processing is simple, result is accurate and the processing time short.
The professional should further recognize, the unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software clearly is described, the composition and the step of each example described prevailingly according to function in the above description.These functions still are that software mode is carried out with hardware actually, depend on the application-specific and the design constraint of technical scheme.The professional and technical personnel can use distinct methods to realize described function to each specific should being used for, but this realization should not thought and exceeds scope of the present invention.
The method of describing in conjunction with embodiment disclosed herein or the step of algorithm can use the software module of hardware, processor execution, and perhaps the combination of the two is implemented.Software module can place the storage medium of any other form known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or the technical field.
Above-described embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is the specific embodiment of the present invention; and be not intended to limit the scope of the invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (19)
1. an audio test system is characterized in that, described audio test system comprises:
Shoulder simulator, described shoulder simulator comprises interconnected shoulder simulator body and test bracket, described test bracket specifically comprises: fixture is fixed on described shoulder simulator body shoulder or described the trunk that shoulder simulator body shoulder is following; Translation device is rotationally connected with described fixture; Clamping device is rotationally connected with described translation device, the terminal clamping portable terminal of described clamping device;
The mobile terminal test device is used for the described portable terminal of described shoulder simulator clamping is carried out audio-frequency test.
2. audio test system according to claim 1 is characterized in that: described fixture specifically comprises:
Fixed lever is fixed on described shoulder simulator body shoulder or described the trunk that shoulder simulator body shoulder is following;
First joint, described first joint comprise the first arthrodesis portion and rotation section, first joint, and the described first arthrodesis portion is fixed on the described fixed lever.
3. audio test system according to claim 2 is characterized in that: described translation device specifically comprises:
The translation control device, described translation control device comprises housing and translation shaft, and described translation shaft is contained in the described housing, and described housing is connected with the rotation section, first joint in described first joint;
Second joint, described second joint comprise second joint fixed part and second joint rotation section, and described second joint fixed part is connected with the translation shaft of described translation control device.
4. audio test system according to claim 3 is characterized in that: described clamping device specifically comprises:
Turning handle is connected with the second joint rotation section of described second joint;
The 3rd joint, described the 3rd joint comprise the 3rd arthrodesis portion and rotation section, the 3rd joint, and described the 3rd arthrodesis portion is connected with described turning handle;
The portable terminal clamper is connected with the rotation section, the 3rd joint in described the 3rd joint.
5. audio test system according to claim 4 is characterized in that:
The rotation section, first joint in described first joint comprises: be connected to each other first joint rotation section body and the first joint rotation axis, rotation section, described first joint body is connected with the housing of described translation control device;
The described first arthrodesis portion comprises: the first arthrodesis portion body, be set in rotation axis outside, described first joint, and fix with described shoulder simulator body; Bearing, butterfly spring and clamp nut are set in the rotation axis outside, described first joint;
Described first joint also comprises the angle potentiometer, is connected with the first joint rotation axis of the described first arthrodesis portion.
6. audio test system according to claim 4 is characterized in that described translation control device also comprises: retainer plate, be contained in the described housing, and be socketed in outside the described translation shaft; Bearing and axle sleeve are contained in the described housing, are socketed in successively outside the described translation shaft; Navigation button is fixed on the described housing, connects with described translation shaft; Pressure regulator is connected with described translation shaft; Linear potentiometer is connected with described translation shaft.
7. audio test system according to claim 4 is characterized in that:
The second joint rotation section of described second joint comprises: be connected to each other second joint rotation section body and second joint rotation axis, described second joint rotation section body is connected with described turning handle;
Described second joint fixed part comprises: second joint fixed part body, be set in described second joint rotation axis outside, and be connected with the translation shaft of described translation control device; Bearing, butterfly spring and clamp nut are set in the described second joint rotation axis outside;
Described second joint also comprises the angle potentiometer, is connected with the second joint rotation axis of described second joint fixed part.
8. audio test system according to claim 4 is characterized in that:
The rotation section, the 3rd joint in described the 3rd joint comprises and is connected to each other the 3rd joint rotation section body and the 3rd joint rotation axis that rotation section, described the 3rd joint body is connected with described portable terminal clamper;
Described the 3rd arthrodesis portion comprises: the 3rd arthrodesis portion body, be set in rotation axis outside, described the 3rd joint, and be connected with described turning handle; Bearing, butterfly spring and clamp nut are set in the rotation axis outside, described first joint.
9. audio test system according to claim 4 is characterized in that described portable terminal clamper comprises: the clamper body; Height adjuster is fixed on the described clamper body; Level governor is fixed on the described clamper body; Reference fixture is fixed on the described clamper body.
10. audio test system according to claim 4 is characterized in that described shoulder simulator also comprises slide rail, is fixed on described the shoulder simulator body; Described translation control device also comprises pulley, connects on the housing that is located at described translation control device, establishes with described slide rail is sliding mutually.
11. audio test system according to claim 1 is characterized in that described mobile terminal test device comprises:
Central processing unit is used for centralized control and processing;
Measuring signal generator is used to generate the audio-frequency test signal;
Power amplifier is used to amplify described audio-frequency test signal;
Audio-frequency generator is used for playing the described audio-frequency test signal that amplifies on a shoulder simulator body of described shoulder simulator;
Audio receiver is used for receiving the audio signal that described portable terminal sends on a shoulder simulator body of described shoulder simulator;
Analog to digital converter, being used for the described audio signal that receives is carried out analog-to-digital conversion is digital signal, sends described central processing unit and handles.
12. audio test system according to claim 1 is characterized in that, described mobile terminal test device also comprises: EEPROM (Electrically Erasable Programmable Read Only Memo) and/or internal memory are connected with described central processing unit respectively.
13. audio test system according to claim 1 is characterized in that, described audio receiver comprises left side microphone and right side microphone, is fixed on described the shoulder simulator body, is connected with described central processing unit respectively.
14. audio test system according to claim 1 is characterized in that, described analog to digital converter comprises left side analog to digital converter and right side analog to digital converter, is connected with described central processing unit respectively.
15. audio test system according to claim 1 is characterized in that, described mobile terminal test device also comprises reseting module, is connected with described central processing unit.
16. audio test system according to claim 1 is characterized in that, described mobile terminal test device also comprises the mobile terminal test device interface, is connected with described central processing unit.
17. audio test system according to claim 1 is characterized in that, described mobile terminal test device also comprises USB interface, is connected with described central processing unit.
18. audio test system according to claim 1 is characterized in that, described mobile terminal test device also comprises test loop, is connected with described analog to digital converter.
19. audio test system according to claim 1 is characterized in that, described central processing unit utilizes DM6437 to realize.
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| CN 201010186627 CN101867863B (en) | 2010-05-21 | 2010-05-21 | Audio test system |
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| CN 201010186627 CN101867863B (en) | 2010-05-21 | 2010-05-21 | Audio test system |
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| CN101867863A true CN101867863A (en) | 2010-10-20 |
| CN101867863B CN101867863B (en) | 2012-12-26 |
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| CN102075848A (en) * | 2011-02-17 | 2011-05-25 | 深圳市豪恩声学股份有限公司 | Method and system for testing array microphone and rotating device |
| CN102710834A (en) * | 2012-05-14 | 2012-10-03 | 南京声准科技有限公司 | Automatic fixture for mobile phone audio test |
| CN103067551A (en) * | 2013-01-08 | 2013-04-24 | 南京声准科技有限公司 | Pressure-adjustable automatic clamp device for mobile phone audio test |
| CN103078983A (en) * | 2013-01-08 | 2013-05-01 | 南京声准科技有限公司 | Torsion-limited automatic clamp device applied to audio testing of mobile phone |
| CN103369085A (en) * | 2013-07-24 | 2013-10-23 | 南京声准科技有限公司 | Automatic clamp device with limiting columns for audio test of mobile phone |
| CN103391342A (en) * | 2013-07-24 | 2013-11-13 | 南京声准科技有限公司 | Automatic clamp device used for cell phone audio test and capable of rotating away from ears |
| CN104023106A (en) * | 2014-06-16 | 2014-09-03 | 南京声准科技有限公司 | Audio automatic testing device of communication terminal in loudspeaker or desktop hands-free mode |
| CN104135707A (en) * | 2014-08-08 | 2014-11-05 | 南京声准科技有限公司 | Audio testing device and method with standard microphone |
| EP2980547A1 (en) * | 2012-10-24 | 2016-02-03 | Kyocera Corporation | Vibration pickup device, vibration measurement device, measurement system, and measurement method |
| CN107172559A (en) * | 2017-06-21 | 2017-09-15 | 长安大学 | One kind vibration bionic mechanical head earphone test system and control method |
| CN113507679A (en) * | 2021-06-09 | 2021-10-15 | 上海闻泰信息技术有限公司 | Control method, system, equipment and medium of electroacoustic device performance testing device |
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| CN104135707A (en) * | 2014-08-08 | 2014-11-05 | 南京声准科技有限公司 | Audio testing device and method with standard microphone |
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