CN105979463A - Program-controlled receiver automatic magnetization test apparatus - Google Patents
Program-controlled receiver automatic magnetization test apparatus Download PDFInfo
- Publication number
- CN105979463A CN105979463A CN201610278542.4A CN201610278542A CN105979463A CN 105979463 A CN105979463 A CN 105979463A CN 201610278542 A CN201610278542 A CN 201610278542A CN 105979463 A CN105979463 A CN 105979463A
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- receiver
- magnetic
- test
- spontaneous magnetization
- magnetization
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- 230000005415 magnetization Effects 0.000 title claims abstract description 22
- 230000005291 magnetic effect Effects 0.000 claims abstract description 23
- 238000004146 energy storage Methods 0.000 claims abstract description 3
- 230000002269 spontaneous effect Effects 0.000 claims description 10
- 230000005284 excitation Effects 0.000 claims description 2
- 230000005389 magnetism Effects 0.000 claims description 2
- 230000005285 magnetism related processes and functions Effects 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 claims description 2
- 230000003313 weakening effect Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 239000003990 capacitor Substances 0.000 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000012163 sequencing technique Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R29/00—Monitoring arrangements; Testing arrangements
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Measuring Magnetic Variables (AREA)
Abstract
The invention discloses a program-controlled receiver automatic magnetization test apparatus. The program-controlled receiver automatic magnetization test apparatus is used for receiver magnetization and test. The apparatus is composed of a controller (such as a computer and control software), a test circuit, a magnetization power source and a C-shaped coil. According to a preferred embodiment of the invention, a magnetization circuit is provided; the magnetization circuit, under the control of the controller, carries out discharging on the C-shaped coil through adopting capacitor energy storage, so that electric energy can be converted into magnetic energy, and a strong magnetic field can be formed; and the magnets of the receiver are magnetized and demagnetized.
Description
Technical field
The present invention relates to balanced armature receiver (being called for short receiver) manufacturing process, relate more specifically to the magnetization in receiver's production process and test processing procedure.
Background technology
Present receiver's Magnitizing method is receiver to be placed on one add on magnetic coil, is adding on magnetic coil current induced magnetic field certain logical to magnetize receiver, as shown below:
The shortcoming of this Magnitizing method is cannot be according to the individual variation in receiver's production process to regulate the level of magnetization of two blocks of Magnet in receiver, and the most magnetized receiver's distortion is higher.Secondly as the difference of ferromagnetic material, the sensitivity difference using existing Magnitizing method to carry out magnetized receiver according to same current is bigger.
Summary of the invention
The present invention is to solve the deficiency in existing receiver's magnetization technology and a kind of intelligence developed, precision are high, the program control automatic magnetizing equipment of good stability.For reaching above-mentioned purpose, the technical solution used in the present invention is:
Program control receiver's spontaneous magnetization test equipment, magnetizes for receiver and tests, and described equipment is made up of controller (computer and control software), test circuit, excitation supply, C-shaped coil four part.
As a kind of preferred version of the present invention, it is provided that a kind of magnetization circuit, this circuit is under control of the controller, use capacitance energy storage mode, to the coil discharge of a C-shape, convert electrical energy into magnetic energy, form a high-intensity magnetic field, the Magnet of receiver is filled and subtracts magnetic.
As a kind of preferred version of the present invention, fill and subtract magnetic process and be made up of three steps: the first step, forward magnetizes, and magnetizes the Magnet of electroacoustic transducer to saturated；Second step, by the additional deflection voltage of electroacoustic transducer, the tongue of receiver being deflected, forms protection to one of them Magnet of receiver；3rd step, reversely magnetizes, and reversely magnetize the magnetic by weakening receiver's Magnet, it is ensured that remanent magnetism meets product and produces the loudness of certain sound pressure level under specified driving voltage.
As a kind of preferred version of the present invention, the control sequential strict difinition to magnetic history.
As a kind of preferred version of the present invention, devise a special C-shape magnetizing coil, receiver is positioned over the gap of C-shaped coil, makes the field homogeneity that coil produces.
As a kind of preferred version of the present invention, having selected 2 hand-coding device knobs, one controls deflection voltage, and a control subtracts magnetoelectricity pressure, compensate for the approach of manual intervention after the failure of this equipment spontaneous magnetization.
As a kind of preferred version of the present invention, receiver's magnetization and test are combined, improves production efficiency.
As a kind of preferred version of the present invention, use approximate algorithm, according to the sound pressure level once analyzed before product and distortion data, be given and add and subtract the deflection voltage of magnetic next time and subtract magnetoelectricity pressure.
As a kind of preferred version of the present invention, using above-mentioned control process as algorithm, use labview as programming language, enroll control program, control the operation of equipment；
Beneficial effects of the present invention:
In receiver's production technology, use the equipment of the present invention, production efficiency can be improved, improve the concordance of product.
Accompanying drawing explanation
Fig. 1 is that magnetizing function realizes circuit structure.
Fig. 2 is c-type loop construction schematic diagram.
Fig. 3 is test function electric loop schematic diagram.
Fig. 4 is sequencing contro schematic diagram.
Detailed description of the invention:
The realizing of magnetizing function is realized by circuit structure shown in Fig. 1, and two capacitive function respectively magnetize discharge capacity and subtract electromagnetic discharge electric capacity, it is assumed that C1 magnetizes discharge capacity, and C2 position subtracts electromagnetic discharge electric capacity, and work process is as follows:
Controller obtains sound pressure level and the distortion data of receiver according to last test analysis, is given and subtracts magnetoelectricity pressure on this deflection voltage U1 and C2, and adjusts magnitude of voltage on C2 by voltage adjusting device.
Being controlled K1 analog switch by controller to open, C1 electric capacity adds magnetic coil and connects and discharge with C-shaped, is formed and add magnetic magnetic field in C-shaped adds magnetic coil, closes K1 after time delay；Controller controls to be added on receiver's coil U1, then controls K2 analog switch and opens, and subtracts magnetocapacitance C2 and C-shaped coil constitutes loop and discharges, formed in C-shaped adds magnetic coil and subtract magnetic magnetic field, closing after time delay, this process control is referred to as sequencing contro, and this control sequential has been carried out describing in detail by Fig. 4.
Fig. 2 is C-shaped coil, and C-shaped coil is made up of 2 major parts, and skeleton is that stalloy builds up, stalloy use non-magnet_conductible material fastening, coil is that insulated conductor is coiled into, around bundle numerical digit 20～40 circle.The gap of C-shaped coil is that receiver magnetizes position.
Fig. 3 is test function electric loop schematic diagram, controller controls arbitrary waveform signal generator and produces 20Hz～20khz swept-frequency signal, add circuit it is input to together with biasing circuit, produce test benchmark signal, then according to the needs of product, amplification rear drive receiver's sounding through constant voltage circuit or constant-current circuit, sound enters mike by bonder and is converted to the signal of telecommunication, collected by dynamic signal analyzer and be analyzed, obtain the frequency response curve of receiver, distortion curve, coil impedance, resistance, phase place, the data of abnormal sound and preserve to computer.
Although in description being illustrated embodiments of the present invention, but these embodiments are intended only as prompting, should not limit protection scope of the present invention.Carry out various omission without departing from the spirit and scope of the present invention, replace and change should be included in protection scope of the present invention.
Claims (6)
1. program control receiver's spontaneous magnetization test an equipment, magnetize for receiver and test, described equipment by
Controller (computer and control software), test circuit, excitation supply, C-shaped coil four part composition.
Program control receiver's spontaneous magnetization the most according to claim 1 test equipment, it is characterised in that: use electricity
Hold energy storage mode, to the coil discharge of a C-shape, convert electrical energy into magnetic energy, form a strong magnetic
, the Magnet of receiver is filled and subtracts magnetic.
Program control receiver's spontaneous magnetization the most according to claim 1 test equipment, it is characterised in that: fill and subtract magnetic
Process is made up of three steps: the first step, and forward magnetizes, and magnetizes the Magnet of electroacoustic transducer to saturated；The
Two steps, by the additional deflection voltage of electroacoustic transducer, deflecting the tongue of receiver, to being subject to
Words one of them Magnet of device forms protection；3rd step, reversely magnetizes, and reversely magnetizes by weakening receiver
The magnetic of Magnet, it is ensured that remanent magnetism meets product and produces the sound of certain sound pressure level under specified driving voltage
Degree.
Program control receiver's spontaneous magnetization the most according to claim 1 test equipment, it is characterised in that: devise
One special C-shape magnetizing coil, is positioned over receiver the gap of C-shaped coil, makes coil produce
Raw field homogeneity.
Program control receiver's spontaneous magnetization the most according to claim 1 test equipment, it is characterised in that: select
2 hand-coding device knobs, one controls deflection voltage, and a control subtracts magnetoelectricity pressure, compensate for originally setting
The approach of manual intervention after standby spontaneous magnetization failure.
Program control receiver's spontaneous magnetization the most according to claim 1 test equipment, it is characterised in that: use and force
Nearly algorithm, according to the sound pressure level once analyzed before product and distortion data, is given and adds and subtracts the inclined of magnetic next time
Turn voltage and subtract magnetoelectricity pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610278542.4A CN105979463B (en) | 2016-04-30 | 2016-04-30 | Automatic magnetization testing equipment for program-controlled telephone receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610278542.4A CN105979463B (en) | 2016-04-30 | 2016-04-30 | Automatic magnetization testing equipment for program-controlled telephone receiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105979463A true CN105979463A (en) | 2016-09-28 |
| CN105979463B CN105979463B (en) | 2023-11-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610278542.4A Active CN105979463B (en) | 2016-04-30 | 2016-04-30 | Automatic magnetization testing equipment for program-controlled telephone receiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105979463B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111050263A (en) * | 2019-11-07 | 2020-04-21 | 歌尔股份有限公司 | Microphone load impedance testing system and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11234795A (en) * | 1998-02-10 | 1999-08-27 | Sharp Corp | Electro-acoustic transducer |
| CN102576595A (en) * | 2009-10-19 | 2012-07-11 | 三菱电机株式会社 | Magnetizing device and method for manufacturing permanent magnet motor |
| CN203433930U (en) * | 2013-08-05 | 2014-02-12 | 宁波尼兰德磁业有限公司 | Automatic magnetizer for motor neodymium magnet |
| CN104752016A (en) * | 2013-12-30 | 2015-07-01 | 沈阳新松机器人自动化股份有限公司 | Device and method for automatic magnetizing and demagnetizing of electromagnetic type residual current operated circuit-breaker |
| CN105186823A (en) * | 2015-07-31 | 2015-12-23 | 浙江理工大学 | Double-rotor transverse-flux moving magnet type linear oscillatory motor and method |
-
2016
- 2016-04-30 CN CN201610278542.4A patent/CN105979463B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11234795A (en) * | 1998-02-10 | 1999-08-27 | Sharp Corp | Electro-acoustic transducer |
| CN102576595A (en) * | 2009-10-19 | 2012-07-11 | 三菱电机株式会社 | Magnetizing device and method for manufacturing permanent magnet motor |
| CN203433930U (en) * | 2013-08-05 | 2014-02-12 | 宁波尼兰德磁业有限公司 | Automatic magnetizer for motor neodymium magnet |
| CN104752016A (en) * | 2013-12-30 | 2015-07-01 | 沈阳新松机器人自动化股份有限公司 | Device and method for automatic magnetizing and demagnetizing of electromagnetic type residual current operated circuit-breaker |
| CN105186823A (en) * | 2015-07-31 | 2015-12-23 | 浙江理工大学 | Double-rotor transverse-flux moving magnet type linear oscillatory motor and method |
Non-Patent Citations (1)
| Title |
|---|
| 张培君: "电话机送(受)话器的业余检测", 现代通信, no. 11 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111050263A (en) * | 2019-11-07 | 2020-04-21 | 歌尔股份有限公司 | Microphone load impedance testing system and method |
| CN111050263B (en) * | 2019-11-07 | 2021-11-02 | 潍坊歌尔微电子有限公司 | Microphone load impedance testing system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105979463B (en) | 2023-11-17 |
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