CN108919118A - Motor cycle of oscillation measurement method, device, terminal and storage medium - Google Patents
Motor cycle of oscillation measurement method, device, terminal and storage medium Download PDFInfo
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- CN108919118A CN108919118A CN201810713607.2A CN201810713607A CN108919118A CN 108919118 A CN108919118 A CN 108919118A CN 201810713607 A CN201810713607 A CN 201810713607A CN 108919118 A CN108919118 A CN 108919118A
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- 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
- G01R31/343—Testing dynamo-electric machines in operation
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Abstract
The application proposes a kind of motor cycle of oscillation measurement method, device, terminal and storage medium, is applied in camera module, camera module includes：Driving chip and motor, first end and the driving chip of motor are electrical connected, and the second end of motor is connected with power supply, and this method includes detecting the test voltage signal of the first end output of motor；Motor cycle of oscillation is measured according to the first voltage situation of change of test voltage signal.It does not need to configure additional laser range finder and corresponding jig by the application, saves measurement cost, so that measurement process is more simple and direct, promote measurement effect.
Description
Technical field
This application involves field of terminal technology more particularly to a kind of motor cycle of oscillation measurement method, device, terminal and deposit
Storage media.
Background technique
Measurement motor cycle of oscillation in the related technology is carried out by the way of laser ranging.
Under this mode, need additionally to configure laser range finder and corresponding jig, while needing to increase additional survey
Examination work station measures, and relatively expends the time, measurement cost is higher, and not convenient enough, measurement effect is bad.
Summary of the invention
The application is intended to solve at least some of the technical problems in related technologies.
For this purpose, the application proposes a kind of motor cycle of oscillation measurement method, device, terminal and storage medium, do not need to match
Additional laser range finder and corresponding jig are set, measurement cost is saved, so that measurement process is more simple and direct, promotes measurement effect
Fruit.
In order to achieve the above objectives, the motor cycle of oscillation measurement method that the application first aspect embodiment proposes, is applied to
In camera module, the camera module includes：Driving chip and motor, the first end of the motor and the driving chip
It being electrical connected, the second end of the motor is connected with power supply, including：Detect the test voltage letter of the first end output of the motor
Number；Motor cycle of oscillation is measured according to the first voltage situation of change of the test voltage signal.
The motor cycle of oscillation measurement method that the application first aspect embodiment proposes, it is defeated by the first end for detecting motor
Test voltage signal out measures motor cycle of oscillation according to the first voltage situation of change of test voltage signal, no
Additional laser range finder and corresponding jig are needed to configure, measurement cost is saved, so that measurement process is more simple and direct, is promoted
Measurement effect.
In order to achieve the above objectives, the motor cycle of oscillation measuring device that the application second aspect embodiment proposes, is applied to
In camera module, the camera module includes：Driving chip and motor, the first end of the motor and the driving chip
It being electrical connected, the second end of the motor is connected with power supply, including：Detection module, the first end for detecting the motor are defeated
Test voltage signal out；Measurement module, for being shaken according to the first voltage situation of change of the test voltage signal to motor
Swinging the period measures.
The motor cycle of oscillation measuring device that the application second aspect embodiment proposes, it is defeated by the first end for detecting motor
Test voltage signal out measures motor cycle of oscillation according to the first voltage situation of change of test voltage signal, no
Additional laser range finder and corresponding jig are needed to configure, measurement cost is saved, so that measurement process is more simple and direct, is promoted
Measurement effect.
To solve the above-mentioned problems, the application third aspect also proposes a kind of terminal, the terminal include shell, processor,
Memory, circuit board and power circuit, wherein the circuit board is placed in the space interior that the shell surrounds, the processing
Device and the memory are arranged on the circuit board；The power circuit, for each circuit or device for the terminal
Power supply；The memory is for storing executable program code；Wherein, the processor is stored by reading in the memory
Executable program code run program corresponding with the executable program code, for executing：Detect the motor
First end output test voltage signal；According to the first voltage situation of change of the test voltage signal is vibrated to motor week
Phase measures.
The terminal that the application third aspect embodiment proposes is believed by detecting the test voltage of first end output of motor
Number, motor cycle of oscillation is measured according to the first voltage situation of change of test voltage signal, does not need to configure additionally
Laser range finder and corresponding jig save measurement cost, so that measurement process is more simple and direct, promote measurement effect.Motor
Cycle of oscillation measurement
The application fourth aspect embodiment proposes a kind of non-transitorycomputer readable storage medium, when the storage is situated between
When instruction in matter is executed by the processor of terminal, enable the terminal to execute a kind of motor cycle of oscillation measurement method, it is described
Method includes：Detect the test voltage signal of the first end output of the motor；According to the first of the test voltage signal the electricity
Pressure situation of change measures motor cycle of oscillation.
The non-transitorycomputer readable storage medium that the application fourth aspect embodiment proposes passes through the of detection motor
The test voltage signal of one end output, surveys motor cycle of oscillation according to the first voltage situation of change of test voltage signal
Amount does not need to configure additional laser range finder and corresponding jig, measurement cost is saved, so that measurement process is more simple
Victory promotes measurement effect.The measurement of motor cycle of oscillation
The additional aspect of the application and advantage will be set forth in part in the description, and will partially become from the following description
It obtains obviously, or recognized by the practice of the application.
Detailed description of the invention
The application is above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, wherein：
Fig. 1 is the flow diagram for the motor cycle of oscillation measurement method that one embodiment of the application proposes；
Fig. 2 is the connection relationship diagram of driving chip and motor in the embodiment of the present application；
Fig. 3 is the flow diagram for the motor cycle of oscillation measurement method that another embodiment of the application proposes；
Fig. 4 is the structural schematic diagram for the motor cycle of oscillation measuring device that one embodiment of the application proposes；
Fig. 5 is the structural schematic diagram for the motor cycle of oscillation measuring device that another embodiment of the application proposes；
Fig. 6 is the structural schematic diagram for the terminal that the application one embodiment proposes.
Specific embodiment
Embodiments herein is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the application, and should not be understood as the limitation to the application.On the contrary, this
The embodiment of application includes all changes fallen within the scope of the spiritual and intension of attached claims, modification and is equal
Object.
Fig. 1 is the flow diagram for the motor cycle of oscillation measurement method that one embodiment of the application proposes.
The present embodiment is configured as illustrating in motor cycle of oscillation measuring device with motor cycle of oscillation measurement method
It is bright.
Motor cycle of oscillation measurement method can be configured in motor cycle of oscillation measuring device in the present embodiment, motor
Cycle of oscillation measuring device can be set in the electronic device, the embodiment of the present application to this with no restriction.
The present embodiment is by taking motor cycle of oscillation measurement method is configured in the electronic device as an example.
The motor cycle of oscillation measurement method of the present embodiment is applied in the camera module of electronic equipment, camera module
Including：Driving chip and motor, first end and the driving chip of motor are electrical connected, and the second end of motor is connected with power supply.
Wherein, electronic equipment such as smart phone, tablet computer, personal digital assistant, e-book etc. has various operations
The hardware device of system.
It should be noted that the executing subject of the embodiment of the present application, on hardware can be, for example, in electronic equipment in
Central processor (Central Processing Unit, CPU), after on software being, for example, relevant in electronic equipment
Platform service, with no restriction to this.
Measurement motor cycle of oscillation in the related technology is carried out by the way of laser ranging.
Under this mode, need additionally to configure laser range finder and corresponding jig, while needing to increase additional survey
Examination work station measures, and relatively expends the time, measurement cost is higher, and not convenient enough, measurement effect is bad.
In order to solve the above-mentioned technical problem, the embodiment of the present application provides a kind of motor cycle of oscillation measurement method, passes through inspection
The test voltage signal for surveying the first end output of motor vibrates motor according to the first voltage situation of change of test voltage signal
Period measures, and does not need to configure additional laser range finder and corresponding jig, measurement cost is saved, so that measuring
Cheng Gengwei is simple and direct, promotes measurement effect.
Referring to fig. 2, Fig. 2 is the connection relationship diagram of driving chip and motor in the embodiment of the present application.Include in Fig. 2：
Driving chip 201 and motor 202, first end 2021 and the driving chip 201 of motor 202 are electrical connected, the second end of motor 202
2022 are connected with power supply, further include：Voltage signal acquisition pin 203 can detecte horse by the voltage signal acquisition pin 203
The test voltage signal of the first end output reached.
Referring to Fig. 1, this method includes：
S101：Detect the test voltage signal of the first end output of motor.
The embodiment of the present application can detect the test electricity of the first end output of motor during specific execute in real time
Press signal；Alternatively, the test voltage signal of the first end output every prefixed time interval detection motor.
The test voltage signal that first end by detecting motor in real time exports, to measure motor oscillation week in real time
Phase, then according to the real-time measurement to motor cycle of oscillation the focusing process process of CCD camera assembly is handled, can
While guaranteeing to measure precision, facilitate subsequent focusing process indirectly.
The embodiment of the present application also by configuring prefixed time interval, realizes first every prefixed time interval detection motor
Hold the test voltage signal of output, the flexibility of effective method for improving configuration, can when with actual measurement demand just every
Prefixed time interval detects the test voltage signal of the first end output of motor, promotes user experience degree.
Optionally, in some embodiments, referring to Fig. 3, before S101, further include：
S301：Determine the conversion formula between the second voltage situation of change of reference voltage signal and motor cycle of oscillation.
It is alternatively possible to determine first function corresponding to the electromagnetic force when vibration of driving chip drive motor；It determines and drives
Second function corresponding to induced electromotive force when dynamic chip drives motor vibrations；When determining the vibration of driving chip drive motor,
Third function corresponding to reference voltage signal and induced electromotive force；It is true according to first function, second function and third function
Determine conversion formula.
The embodiment of the present application is in the second voltage situation of change and motor oscillation week for executing above-mentioned determining reference voltage signal
It is the following working principle for considering motor during conversion formula between phase：
Voice coil motor is an electromagnetic system, and motor coil can generate corresponding electromagnetic force (ampere after being powered in magnetic field
Law F=BLI), electromagnetic force can make motor carrier part be detached from home position setting in motion, simultaneously because the movement of carrier,
Elastic slice starts to generate elastic force (Hooke's law：F=-kx), when elastic force, gravity and electromagnetic force three balance, motor carrier can be by
It is progressive enter stable state.The coil of motor during the motion, due to the relationship of cutting magnetic field, and can obtain corresponding induced electricity
Kinetic potential (E=BLV).
The embodiment of the present application assume that (function can be claimed motor according to electromagnetic force f (t)=Asin (ω t+B)
For first function) vibration, then its vibration velocity can be expressed asThe induction generated at this time
Electromotive force is E (t)=BLv (t)=BLAcos (ω t+B) (function can be referred to as second function), corresponding with reference to electricity
Press function V corresponding to signal and induced electromotive forceout=Vdd- E (t) (function can be referred to as third function), then, can
To determine conversion formula V according to first function, second function and third functionout=Vdd-BLA·cos(ωt+B).By with
It is upper to calculate resulting conversion formula it is found that the voltage change situation of reference voltage signal (be referred to as second voltage variation feelings
Condition) it is identical as motor natural mode shape ω, therefore, the embodiment of the present application is in the mistake measured to actual motor cycle of oscillation
Cheng Zhong, can directly by the voltage change situation of test voltage signal of first end output of collected motor (can be by
Referred to as first voltage situation of change), the measurement of motor cycle of oscillation can be carried out in conjunction with conversion formula.
S102：Motor cycle of oscillation is measured according to the first voltage situation of change of test voltage signal.
Referring to Fig. 3, this method can also include：
S302：Using first voltage situation of change as the input of conversion formula, and the output of conversion formula is analyzed,
Obtain test voltage signal corresponding motor cycle of oscillation.
Practical application experience can be bound to the survey of motor cycle of oscillation during specific execute by the embodiment of the present application
In amount process, so that more agreeing with the measurement of motor cycle of oscillation the situation of change of practical application scene, from another dimension
The measurement precision of motor cycle of oscillation.Also, motor cycle of oscillation is carried out by being directly based upon predetermined conversion formula
Measurement, being capable of effectively save time of measuring.
In the present embodiment, the test voltage signal of the first end output by detecting motor, according to test voltage signal
First voltage situation of change measures motor cycle of oscillation, does not need to configure additional laser range finder and control accordingly
Tool saves measurement cost, so that measurement process is more simple and direct, promotes measurement effect.
Fig. 4 is the structural schematic diagram for the motor cycle of oscillation measuring device that one embodiment of the application proposes.
Applied in camera module, camera module includes：Driving chip and motor, the first end and driving core of motor
Piece is electrical connected, and the second end of motor is connected with power supply.
Referring to fig. 4, which includes：
Detection module 401, the test voltage signal that the first end for detecting motor exports.
Measurement module 402, for being carried out according to the first voltage situation of change of test voltage signal to motor cycle of oscillation
Measurement.
Optionally, in some embodiments, referring to Fig. 5, further include：
Determining module 403, for determining between the second voltage situation of change of reference voltage signal and motor cycle of oscillation
Conversion formula.
Optionally, in some embodiments, measurement module 402 is specifically used for：
Using first voltage situation of change as the input of conversion formula, and the output of conversion formula is analyzed, is obtained
Test voltage signal corresponding motor cycle of oscillation.
Optionally, in some embodiments, determining module 403 is specifically used for：
First function corresponding to electromagnetic force when determining the vibration of driving chip drive motor；
Second function corresponding to induced electromotive force when determining the vibration of driving chip drive motor；
When determining the vibration of driving chip drive motor, third function corresponding to reference voltage signal and induced electromotive force；
Conversion formula is determined according to first function, second function and third function.
Optionally, in some embodiments, detection module 401 is specifically used for：
The test voltage signal of the first end output of motor is detected in real time；Alternatively,
Every the test voltage signal of the first end output of prefixed time interval detection motor.
It should be noted that measuring motor cycle of oscillation measurement side to motor cycle of oscillation in earlier figures 1- Fig. 3 embodiment
The explanation of method embodiment is also applied for the motor cycle of oscillation measurement motor cycle of oscillation measuring device 400 of the embodiment,
Its realization principle is similar, and details are not described herein again.
In the present embodiment, the test voltage signal of the first end output by detecting motor, according to test voltage signal
First voltage situation of change measures motor cycle of oscillation, does not need to configure additional laser range finder and control accordingly
Tool saves measurement cost, so that measurement process is more simple and direct, promotes measurement effect.
Fig. 6 is the structural schematic diagram for the terminal that the application one embodiment proposes.
The terminal can be mobile phone, tablet computer etc..
Referring to Fig. 6, the terminal 60 of the present embodiment includes：Shell 601, processor 602, memory 603, circuit board 604, electricity
Source circuit 605,6 circuit boards 604 are placed in the space interior that shell 601 surrounds, and processor 602, memory 603 are arranged in circuit
On plate 604；Power circuit 605, for powering for each circuit of terminal 60 or device；Memory 603 is for storing executable journey
Sequence code；Wherein, processor 602 is run and executable journey by reading the executable program code stored in memory 603
The corresponding program of sequence code, for executing：
Detect the test voltage signal of the first end output of motor；
Motor cycle of oscillation is measured according to the first voltage situation of change of test voltage signal.
It should be noted that explaining in earlier figures 1- Fig. 3 embodiment motor cycle of oscillation measurement method embodiment
The bright terminal 60 for being also applied for the embodiment, realization principle is similar, and details are not described herein again.
In the present embodiment, the test voltage signal of the first end output by detecting motor, according to test voltage signal
First voltage situation of change measures motor cycle of oscillation, does not need to configure additional laser range finder and control accordingly
Tool saves measurement cost, so that measurement process is more simple and direct, promotes measurement effect.
In order to realize above-described embodiment, the application also proposes a kind of non-transitorycomputer readable storage medium, works as storage
When instruction in medium is executed by the processor of terminal, enable the terminal to execute a kind of motor cycle of oscillation measurement method, side
Method includes：
Detect the test voltage signal of the first end output of motor；
Motor cycle of oscillation is measured according to the first voltage situation of change of test voltage signal.
Non-transitorycomputer readable storage medium in the present embodiment, the test of the first end output by detecting motor
Voltage signal measures motor cycle of oscillation according to the first voltage situation of change of test voltage signal, does not need to configure
Additional laser range finder and corresponding jig saves measurement cost, so that measurement process is more simple and direct, promotes measurement effect
Fruit.
In order to realize above-described embodiment, the application also proposes a kind of computer program product, when in computer program product
Instruction when being executed by processor, execute a kind of motor cycle of oscillation measurement method, method includes：
Detect the test voltage signal of the first end output of motor；
Motor cycle of oscillation is measured according to the first voltage situation of change of test voltage signal.
Computer program product in the present embodiment, the test voltage signal of the first end output by detecting motor, root
Motor cycle of oscillation is measured according to the first voltage situation of change of test voltage signal, does not need to configure additional Laser Measuring
Distance meter and corresponding jig save measurement cost, so that measurement process is more simple and direct, promote measurement effect.
It should be noted that term " first ", " second " etc. are used for description purposes only in the description of the present application, without
It can be interpreted as indication or suggestion relative importance.In addition, in the description of the present application, unless otherwise indicated, the meaning of " multiple "
It is two or more.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes
It is one or more for realizing specific logical function or process the step of executable instruction code module, segment or portion
Point, and the range of the preferred embodiment of the application includes other realization, wherein can not press shown or discussed suitable
Sequence, including according to related function by it is basic simultaneously in the way of or in the opposite order, to execute function, this should be by the application
Embodiment person of ordinary skill in the field understood.
It should be appreciated that each section of the application can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of column technology or their combination are realized：With for realizing the logic gates of logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are understood that realize all or part of step that above-described embodiment method carries
It suddenly is that relevant hardware can be instructed to complete by program, the program can store in a kind of computer-readable storage medium
In matter, which when being executed, includes the steps that one or a combination set of embodiment of the method.
It, can also be in addition, can integrate in a processing module in each functional unit in each embodiment of the application
It is that each unit physically exists alone, can also be integrated in two or more units in a module.Above-mentioned integrated mould
Block both can take the form of hardware realization, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized and when sold or used as an independent product in the form of software function module, also can store in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the application.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although embodiments herein has been shown and described above, it is to be understood that above-described embodiment is example
Property, it should not be understood as the limitation to the application, those skilled in the art within the scope of application can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (12)
1. a kind of motor cycle of oscillation measurement method, which is characterized in that be applied in camera module, the camera module packet
It includes：Driving chip and motor, the first end of the motor are electrical connected with the driving chip, the second end and electricity of the motor
Source is connected, and the described method comprises the following steps：
Detect the test voltage signal of the first end output of the motor；
Motor cycle of oscillation is measured according to the first voltage situation of change of the test voltage signal.
2. motor cycle of oscillation measurement method as described in claim 1, which is characterized in that the of the detection motor
Before the test voltage signal of one end output, further include：
Determine the conversion formula between the second voltage situation of change of reference voltage signal and motor cycle of oscillation.
3. motor cycle of oscillation measurement method as claimed in claim 2, which is characterized in that described to be believed according to the test voltage
Number first voltage situation of change motor cycle of oscillation is measured, including：
Using the first voltage situation of change as the input of the conversion formula, and the output of the conversion formula is divided
Analysis, obtains the test voltage signal corresponding motor cycle of oscillation.
4. motor cycle of oscillation measurement method as claimed in claim 2, which is characterized in that the determining reference voltage signal
Conversion formula between second voltage situation of change and motor cycle of oscillation, including：
Determine first function corresponding to the electromagnetic force when driving chip drives the motor vibrations；
Determine second function corresponding to the induced electromotive force when driving chip drives the motor vibrations；
When determining that the driving chip drives the motor vibrations, corresponding to the reference voltage signal and the induced electromotive force
Third function；
The conversion formula is determined according to the first function, the second function and the third function.
5. motor cycle of oscillation measurement method according to any one of claims 1-4, which is characterized in that the detection horse
The test voltage signal of the first end output reached, including：
The test voltage signal of the first end output of the motor is detected in real time；Alternatively,
The test voltage signal of the first end output of the motor is detected every prefixed time interval.
6. a kind of motor cycle of oscillation measuring device, which is characterized in that be applied in camera module, the camera module packet
It includes：Driving chip and motor, the first end of the motor are electrical connected with the driving chip, the second end and electricity of the motor
Source is connected, and described device includes：
Detection module, the test voltage signal that the first end for detecting the motor exports；
Measurement module, for being surveyed according to the first voltage situation of change of the test voltage signal to motor cycle of oscillation
Amount.
7. motor cycle of oscillation measuring device as claimed in claim 6, which is characterized in that further include：
Determining module, for determining the public affairs of the conversion between the second voltage situation of change of reference voltage signal and motor cycle of oscillation
Formula.
8. motor cycle of oscillation measuring device as claimed in claim 7, which is characterized in that the measurement module is specifically used for：
Using the first voltage situation of change as the input of the conversion formula, and the output of the conversion formula is divided
Analysis, obtains the test voltage signal corresponding motor cycle of oscillation.
9. motor cycle of oscillation measuring device as claimed in claim 7, which is characterized in that the determining module is specifically used for：
Determine first function corresponding to the electromagnetic force when driving chip drives the motor vibrations；
Determine second function corresponding to the induced electromotive force when driving chip drives the motor vibrations；
When determining that the driving chip drives the motor vibrations, corresponding to the reference voltage signal and the induced electromotive force
Third function；
The conversion formula is determined according to the first function, the second function and the third function.
10. motor cycle of oscillation measuring device as claim in any one of claims 6-9, which is characterized in that the detection module,
It is specifically used for：
The test voltage signal of the first end output of the motor is detected in real time；Alternatively,
The test voltage signal of the first end output of the motor is detected every prefixed time interval.
11. a kind of terminal, including shell, processor, memory, circuit board and power circuit, wherein the circuit board is placed in
The space interior that the shell surrounds, the processor and the memory are arranged on the circuit board；The power circuit,
For each circuit or the device power supply for the terminal；The memory is for storing executable program code；Wherein, described
Processor is corresponding with the executable program code to run by reading the executable program code stored in the memory
Program, with for executing：
Detect the test voltage signal of the first end output of the motor；
Motor cycle of oscillation is measured according to the first voltage situation of change of the test voltage signal.
12. a kind of non-transitorycomputer readable storage medium, is stored thereon with computer program, which is characterized in that the program
Motor cycle of oscillation measurement method according to any one of claims 1 to 5 is realized when being executed by processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810713607.2A CN108919118B (en) | 2018-06-29 | 2018-06-29 | Motor oscillation period measuring method, device, terminal and storage medium |
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|---|---|---|---|
| CN201810713607.2A CN108919118B (en) | 2018-06-29 | 2018-06-29 | Motor oscillation period measuring method, device, terminal and storage medium |
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| CN108919118B CN108919118B (en) | 2020-08-07 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109696630A (en) * | 2018-12-20 | 2019-04-30 | 聚辰半导体股份有限公司 | A kind of voice coil motor parameter self-sensing method |
| CN112748337A (en) * | 2019-10-31 | 2021-05-04 | 北京小米移动软件有限公司 | Electronic equipment, method and device for controlling motor in electronic equipment |
| CN114001931A (en) * | 2021-11-02 | 2022-02-01 | Oppo广东移动通信有限公司 | Testing device and testing method for imaging assembly |
| CN115086646A (en) * | 2022-06-09 | 2022-09-20 | 昆山丘钛微电子科技股份有限公司 | Anti-shake control method and system, test fixture and handheld device |
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| CN112748337B (en) * | 2019-10-31 | 2023-08-04 | 北京小米移动软件有限公司 | Electronic device, method and device for controlling motor in electronic device |
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