CN115356630A - Automatic dynamic performance testing system for voice coil motor - Google Patents
Automatic dynamic performance testing system for voice coil motor Download PDFInfo
- Publication number
- CN115356630A CN115356630A CN202211290098.XA CN202211290098A CN115356630A CN 115356630 A CN115356630 A CN 115356630A CN 202211290098 A CN202211290098 A CN 202211290098A CN 115356630 A CN115356630 A CN 115356630A
- Authority
- CN
- China
- Prior art keywords
- voice coil
- coil motor
- assembly
- tested
- sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 32
- 238000006073 displacement reaction Methods 0.000 claims abstract description 67
- 238000001514 detection method Methods 0.000 claims abstract description 51
- 238000011056 performance test Methods 0.000 claims abstract description 5
- 230000010363 phase shift Effects 0.000 claims description 4
- 230000008901 benefit Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Abstract
The invention relates to the technical field of photoelectric scanning and tracking, in particular to an automatic testing system for dynamic performance of a voice coil motor, which comprises: the device comprises a base, a motor driving assembly, a sensor assembly and a control assembly; the motor driving assembly and the sensor assembly are respectively arranged on the base; the motor driving assembly is respectively electrically connected with the voice coil motor to be tested and the control assembly, receives a control signal of the control assembly and drives the voice coil motor to be tested to operate according to the control signal; the sensor assembly is electrically connected with the control assembly, and is used for acquiring a displacement detection signal of the output end of the voice coil motor to be tested and sending the displacement detection signal to the control assembly; and the control assembly receives the displacement detection signal and compares the displacement detection signal with the control signal to obtain the dynamic performance test data of the voice coil motor to be tested. The voice coil motor is driven by the motor driving assembly to reciprocate along a straight line with different waveforms and frequencies, displacement detection signals and control signals are compared, the dynamic performance of the voice coil motor is obtained, and the voice coil motor testing device is reasonable in structure and high in testing precision.
Description
Technical Field
The invention relates to the technical field of photoelectric scanning and tracking, in particular to an automatic testing system for dynamic performance of a voice coil motor.
Background
The voice coil motor is a special type direct current driving motor, has excellent performances such as high speed, high acceleration, quick response and the like, and is often used as a precise current driving element in the fields of precise pointing, laser communication, image motion compensation and the like. In the field of aerospace, in order to realize accurate dynamic tracking, higher requirements are put forward on dynamic performances such as amplitude-frequency characteristics, phase-frequency characteristics and the like of a voice coil motor.
The existing testing device is difficult to automatically test the dynamic performance of the high-power voice coil motor, and the testing requirements of the voice coil motor in the production and use processes cannot be met.
Disclosure of Invention
The embodiment of the invention aims to provide an automatic testing system for the dynamic performance of a voice coil motor, which is characterized in that a motor driving assembly drives the voice coil motor to reciprocate along a straight line with different waveforms and frequencies, a displacement detection signal is compared with a control signal, and the dynamic performance of the voice coil motor is obtained.
In order to solve the above technical problem, an embodiment of the present invention provides an automatic testing system for dynamic performance of a voice coil motor, including: the device comprises a base, a motor driving assembly, a sensor assembly and a control assembly;
the motor driving assembly and the sensor assembly are respectively arranged on the base;
the motor driving assembly is respectively electrically connected with the voice coil motor to be tested and the control assembly, receives a control signal of the control assembly and drives the voice coil motor to be tested to operate according to the control signal;
the sensor assembly is electrically connected with the control assembly, and is used for acquiring a displacement detection signal of the output end of the voice coil motor to be tested and sending the displacement detection signal to the control assembly;
and the control assembly receives the displacement detection signal and compares the displacement detection signal with the control signal to obtain the dynamic performance test data of the voice coil motor to be tested.
Further, the automatic dynamic performance testing system for the voice coil motor further comprises: a displacement detection lever;
one end of the displacement detection rod is fixedly connected with the output end of the voice coil motor to be tested, and the other end of the displacement detection rod faces the sensor assembly and is spaced by a first preset distance.
Further, the sensor assembly includes: the non-contact displacement sensor and the sensor base are fixedly connected;
the sensor base is fixedly connected with the base;
the non-contact displacement sensor is arranged on an extension line of the output end of the voice coil motor to be tested and is spaced by a second preset distance;
and the non-contact displacement sensor acquires a displacement detection signal of the output end of the voice coil motor to be tested and sends the displacement detection signal to the control assembly.
Further, the sensor assembly further comprises: a sensor connecting rod;
one end of the sensor connecting rod is fixedly connected with the sensor base, and the other end of the sensor connecting rod is fixedly connected with the non-contact displacement sensor.
Further, the measuring center distance and the detection range of the non-contact displacement sensor are 50 +/-10 mm, and the resolution is 1.5 mu m.
Further, the automatic dynamic performance testing system for the voice coil motor further comprises: the sliding assembly is electrically connected with the control assembly;
the sliding assembly is fixedly arranged on the base and is fixedly connected with the voice coil motor to be tested through a voice coil motor base, and the voice coil motor to be tested can be driven to reciprocate along a straight line.
Further, the sliding assembly is a high-precision electric sliding table;
the high-precision electric sliding table is electrically connected with the control assembly, and the control assembly drives the voice coil motor to be tested to move in a reciprocating manner along a straight line.
Further, the control component outputs current signals with different waveforms and different frequencies to the voice coil motor to be tested through the motor driving component, and phase shift values of the current signals and the waveform of the displacement detection signal are compared to calculate amplitude-frequency characteristics, phase-frequency characteristics and motion speed of the voice coil motor to be tested.
Further, the current signal waveform may be a sine wave or a square wave.
The technical scheme of the embodiment of the invention has the following beneficial technical effects:
the voice coil motor is driven by the motor driving assembly to reciprocate along a straight line with different waveforms and frequencies, displacement detection signals and control signals are compared, the dynamic performance of the voice coil motor is obtained, and the voice coil motor has the advantages of being reasonable in structure, high in testing precision, convenient to install and debug and the like.
Drawings
Fig. 1 is a schematic front structural diagram of an automatic dynamic performance testing system for a voice coil motor according to an embodiment of the present invention;
fig. 2 is a schematic top view of a system for automatically testing dynamic performance of a voice coil motor according to an embodiment of the present invention.
Reference numerals:
1. voice coil motor, 2, base, 3, slip subassembly, 4, displacement detection pole, 5, non-contact displacement sensor, 6, sensor connecting rod, 7, motor drive assembly.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the accompanying drawings in combination with the embodiments. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Referring to fig. 1 and fig. 2, an embodiment of the invention provides an automatic testing system for dynamic performance of a voice coil motor, including: the device comprises a base 2, a motor driving component 7, a sensor component and a control component; the motor driving component 7 and the sensor component are respectively arranged on the base 2; the motor driving component 7 is respectively electrically connected with the voice coil motor 1 to be tested and the control component, receives a control signal of the control component and drives the voice coil motor 1 to be tested to operate according to the control signal; the sensor assembly is electrically connected with the control assembly, and is used for acquiring a displacement detection signal of the output end of the voice coil motor 1 to be tested and sending the displacement detection signal to the control assembly; and the control assembly receives the displacement detection signal and compares the displacement detection signal with the control signal to obtain the dynamic performance test data of the voice coil motor 1 to be tested.
Specifically, the voice coil motor 1 to be tested in the above embodiment is the packaged high-power voice coil motor 1. Alternatively, the voice coil motor 1 has a resistance of 15 Ω, and when a current value of 3A is applied, the power may reach 135W.
The motor driving component 7 is used for driving the voice coil motor 1 to output different waveforms, frequencies and current values, phase shift values of the two waveforms are calculated through the current waveforms and displacement detection signal waveforms measured by the sensor component, amplitude-frequency characteristics, phase-frequency characteristics, movement speed and the like of the voice coil motor 1 are calculated, and automatic testing of dynamic performance of the voice coil motor 1 is achieved. The motor driving component 7 can accurately drive the voice coil motor 1 to reciprocate according to different waveforms and frequencies, and can automatically output according to set waveforms, such as sine waves, square waves and the like.
Specifically, the control component outputs current signals with different waveforms and different frequencies to the voice coil motor 1 to be tested through the motor driving component 7, and phase shift values of the current signals and the waveform of the displacement detection signal are calculated by comparing the waveform of the current signals with the waveform of the displacement detection signal, and the amplitude-frequency characteristic, the phase-frequency characteristic and the movement speed of the voice coil motor 1 to be tested.
Above-mentioned voice coil motor dynamic performance automatic test system passes through 7 drive voice coil motor 1 of motor drive subassembly with different wave forms, frequency along straight reciprocating motion, contrasts displacement detection signal and control signal, acquires voice coil motor 1's dynamic performance, has rational in infrastructure, measuring accuracy is high, installation and debugging a great deal of advantage such as convenient.
Optionally, the system for automatically testing dynamic performance of the voice coil motor further comprises: a displacement detection rod 4; one end of the displacement detection rod 4 is fixedly connected with the output end of the voice coil motor 1 to be tested, and the other end of the displacement detection rod faces the sensor assembly and is spaced by a first preset distance.
Specifically, the sensor assembly includes: the non-contact displacement sensor 5 and the sensor base are fixedly connected; the sensor base is fixedly connected with the base 2; the non-contact displacement sensor 5 is arranged on an extension line of the output end of the voice coil motor 1 to be tested and is spaced by a second preset distance; the non-contact displacement sensor 5 acquires a displacement detection signal of the output end of the voice coil motor 1 to be tested and sends the displacement detection signal to the control assembly.
The non-contact displacement sensor 5 can accurately measure the displacement transformation of the displacement detection rod 4 connected with the voice coil motor 1.
Further, the sensor assembly further comprises: a sensor connecting rod 6; one end of the sensor connecting rod 6 is fixedly connected with the sensor base, and the other end of the sensor connecting rod is fixedly connected with the non-contact displacement sensor 5.
Further, the distance of the measurement center and the detection range of the noncontact displacement sensor 5 are 50 ± 10mm, and the resolution thereof is 1.5 μm.
Specifically, voice coil motor dynamic behavior automatic test system still includes: the sliding component 3 is electrically connected with the control component; the sliding assembly 3 is fixedly arranged on the base 2, and can drive the voice coil motor 1 to be tested to move linearly and reciprocally through the base of the voice coil motor 1 and the voice coil motor 1 to be tested.
Further, the sliding assembly 3 is a high-precision electric sliding table; the high-precision electric sliding table is electrically connected with the control assembly, and the voice coil motor 1 to be tested is driven to move linearly and reciprocally under the control of the control assembly.
Optionally, the axial load capacity of the sliding assembly 3 can reach 210N, and the repeated positioning precision is 2 μm.
Above-mentioned electronic slip table of high accuracy can be reciprocating motion on the horizontal direction, through accurate, steady motion, can make the voice coil motor 1 that awaits measuring to approach displacement sensor through displacement detection pole 4.
Alternatively, the current signal waveform may be a sine wave or a square wave.
The embodiment of the invention aims to protect an automatic dynamic performance testing system of a voice coil motor, which comprises: the device comprises a base, a motor driving assembly, a sensor assembly and a control assembly; the motor driving assembly and the sensor assembly are respectively arranged on the base; the motor driving assembly is respectively electrically connected with the voice coil motor to be tested and the control assembly, receives a control signal of the control assembly and drives the voice coil motor to be tested to operate according to the control signal; the sensor assembly is electrically connected with the control assembly, and is used for acquiring a displacement detection signal of the output end of the voice coil motor to be tested and sending the displacement detection signal to the control assembly; and the control assembly receives the displacement detection signal and compares the displacement detection signal with the control signal to obtain the dynamic performance test data of the voice coil motor to be tested. The technical scheme has the following effects:
the voice coil motor is driven by the motor driving assembly to reciprocate along a straight line with different waveforms and frequencies, displacement detection signals and control signals are compared, the dynamic performance of the voice coil motor is obtained, and the voice coil motor has the advantages of being reasonable in structure, high in testing precision, convenient to install and debug and the like.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundary of the appended claims, or the equivalents of such scope and boundary.
Claims (9)
1. The utility model provides a voice coil motor dynamic behavior automatic test system which characterized in that includes: the device comprises a base (2), a motor driving assembly (7), a sensor assembly and a control assembly;
the motor driving component (7) and the sensor component are respectively arranged on the base (2);
the motor driving assembly (7) is respectively electrically connected with the voice coil motor (1) to be tested and the control assembly, receives a control signal of the control assembly and drives the voice coil motor (1) to be tested to operate according to the control signal;
the sensor assembly is electrically connected with the control assembly, and is used for acquiring a displacement detection signal of the output end of the voice coil motor (1) to be tested and sending the displacement detection signal to the control assembly;
and the control assembly receives the displacement detection signal and compares the displacement detection signal with the control signal to obtain the dynamic performance test data of the voice coil motor (1) to be tested.
2. The system for automatically testing the dynamic performance of a voice coil motor according to claim 1, further comprising: a displacement detection lever (4);
one end of the displacement detection rod (4) is fixedly connected with the output end of the voice coil motor (1) to be tested, and the other end of the displacement detection rod faces the sensor assembly and is spaced by a first preset distance.
3. The automatic voice coil motor dynamic performance testing system of claim 1,
the sensor assembly includes: the non-contact displacement sensor (5) and the sensor base are fixedly connected;
the sensor base is fixedly connected with the base (2);
the non-contact displacement sensor (5) is arranged on an extension line of the output end of the voice coil motor (1) to be tested and is spaced by a second preset distance;
and the non-contact displacement sensor (5) acquires a displacement detection signal of the output end of the voice coil motor (1) to be tested and sends the displacement detection signal to the control assembly.
4. The automatic voice coil motor dynamic performance testing system of claim 3,
the sensor assembly further includes: a sensor connecting rod (6);
one end of the sensor connecting rod (6) is fixedly connected with the sensor base, and the other end of the sensor connecting rod is fixedly connected with the non-contact displacement sensor (5).
5. The automatic voice coil motor dynamic performance testing system of claim 3,
the distance of the measuring center and the detection range of the non-contact displacement sensor (5) are 50 +/-10 mm, and the resolution is 1.5 mu m.
6. The system for automatically testing the dynamic performance of a voice coil motor according to claim 1, further comprising: a sliding component (3) electrically connected with the control component;
the sliding assembly (3) is fixedly arranged on the base (2), and is fixedly connected with the voice coil motor (1) to be tested through a voice coil motor base, so that the voice coil motor (1) to be tested can be driven to move linearly in a reciprocating manner.
7. The automatic voice coil motor dynamic performance testing system of claim 6,
the sliding assembly (3) is a high-precision electric sliding table;
the high-precision electric sliding table is electrically connected with the control assembly, and the voice coil motor (1) to be tested is driven to reciprocate along a straight line under the control of the control assembly.
8. An automatic voice coil motor dynamic performance testing system according to any one of claims 1 to 7,
the control assembly outputs current signals with different waveforms and different frequencies to the voice coil motor (1) to be tested through the motor driving assembly (7), and phase shift values of the current signals and the waveform of the displacement detection signal are compared to calculate amplitude-frequency characteristics, phase-frequency characteristics and motion speed of the voice coil motor (1) to be tested.
9. The automatic voice coil motor dynamic performance testing system of claim 8,
the current signal waveform may be a sine wave or a square wave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211290098.XA CN115356630B (en) | 2022-10-21 | 2022-10-21 | Automatic dynamic performance testing system for voice coil motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211290098.XA CN115356630B (en) | 2022-10-21 | 2022-10-21 | Automatic dynamic performance testing system for voice coil motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115356630A true CN115356630A (en) | 2022-11-18 |
| CN115356630B CN115356630B (en) | 2023-01-17 |
Family
ID=84008307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211290098.XA Active CN115356630B (en) | 2022-10-21 | 2022-10-21 | Automatic dynamic performance testing system for voice coil motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115356630B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007129900A (en) * | 2006-03-02 | 2007-05-24 | Magtronics Technology Inc | Voice coil motor and positioning control method by magnetoelastic force |
| CN106533318A (en) * | 2016-10-31 | 2017-03-22 | 深圳市太赫兹系统设备有限公司 | Voice coil motor control method and system and controller |
| CN108405363A (en) * | 2018-02-06 | 2018-08-17 | 江西森阳科技股份有限公司 | voice coil motor detection device and detection method |
| CN108469269A (en) * | 2018-01-19 | 2018-08-31 | 天津大学 | A kind of resonance point test system of wideband inertial reference stabilized platform |
| CN109167550A (en) * | 2018-09-17 | 2019-01-08 | 济南益华摩擦学测试技术有限公司 | A kind of non-linear voice coil motor motion control method based on frequency-domain index |
| CN115097594A (en) * | 2022-08-26 | 2022-09-23 | 北京瑞控信科技股份有限公司 | Large-caliber large-corner high-bandwidth voice coil motor fast-reflection mirror device |
-
2022
- 2022-10-21 CN CN202211290098.XA patent/CN115356630B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007129900A (en) * | 2006-03-02 | 2007-05-24 | Magtronics Technology Inc | Voice coil motor and positioning control method by magnetoelastic force |
| CN106533318A (en) * | 2016-10-31 | 2017-03-22 | 深圳市太赫兹系统设备有限公司 | Voice coil motor control method and system and controller |
| CN108469269A (en) * | 2018-01-19 | 2018-08-31 | 天津大学 | A kind of resonance point test system of wideband inertial reference stabilized platform |
| CN108405363A (en) * | 2018-02-06 | 2018-08-17 | 江西森阳科技股份有限公司 | voice coil motor detection device and detection method |
| CN109167550A (en) * | 2018-09-17 | 2019-01-08 | 济南益华摩擦学测试技术有限公司 | A kind of non-linear voice coil motor motion control method based on frequency-domain index |
| CN115097594A (en) * | 2022-08-26 | 2022-09-23 | 北京瑞控信科技股份有限公司 | Large-caliber large-corner high-bandwidth voice coil motor fast-reflection mirror device |
Non-Patent Citations (1)
| Title |
|---|
| 杨练根: "微恒力位移传感器的动态特性测试", 《湖北工业大学学报》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115356630B (en) | 2023-01-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207248916U (en) | A kind of acceleration transducer calibrating installation | |
| CN203698310U (en) | Vehicle high-precision locating device based on inductive loop wire | |
| CN108956185A (en) | A kind of ultrasonic probe characteristic measuring device | |
| CN106872014B (en) | A kind of ultra micro device vibration natural frequency test macro and test method | |
| CN201181201Y (en) | Linear displacement transducer with both-end magnetostriction | |
| Cao et al. | Present situation and prospects of vibration sensors | |
| CN104266740A (en) | Transformer winding and iron core surface vibration signal detecting system and method | |
| CN211085095U (en) | Eddy current displacement sensor normal position calibration device | |
| CN110081806A (en) | A kind of magnetostrictive displacement sensor device, system and calibration method | |
| CN107014406A (en) | A kind of autodyne fraction eddy current displacement sensor for magnetic levitation bearing system | |
| CN115356630B (en) | Automatic dynamic performance testing system for voice coil motor | |
| CN214539979U (en) | Intelligent three-dimensional magnetic field measuring instrument system | |
| CN211855257U (en) | Multifunctional detection device based on linear displacement sensor | |
| CN204008099U (en) | Damping clad plate damping capacity proving installation | |
| CN2308072Y (en) | Instrument for measuring longitudinal piezoelectric strain constant by quasi-static method | |
| CN210863082U (en) | Non-contact triaxial laser vibration testing device | |
| CN208998744U (en) | A kind of testboard bay of included dimensional measurement | |
| CN208751891U (en) | A kind of ultrasonic probe characteristic measuring device | |
| CN203785618U (en) | Detection device for light magnetic axes of metal balls | |
| CN103245607A (en) | Device for measuring frictional force accurately | |
| CN204065384U (en) | A kind of device detecting hall sensor | |
| CN113391089A (en) | Method and device for measuring object movement speed based on multi-coil electromagnetic induction | |
| CN204128520U (en) | A kind of thread-vibration type device for sensing displacement | |
| CN203275269U (en) | Device for accurately measuring friction force | |
| CN204129211U (en) | A kind of base passive and wireless multi-parameter sensor intelligent electric energy meter temperature rise detecting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Building 1, 3rd Floor, Hefei Luyang Big Data Industrial Park, No. 868 Qinghe Road, Luyang District, Hefei City, Anhui Province, 230041 Patentee after: Anhui Ruikongxin Optoelectronic Technology Co.,Ltd. Country or region after: China Address before: 100085 1006, 1st floor, lin831-nei1, Changping Road, Anning North Road, Haidian District, Beijing Patentee before: Beijing ruikongxin Technology Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |