CN105911855B - A kind of measurement method about the mobile phone starting of oscillation of DC vibrating motor and failure of oscillation time - Google Patents
A kind of measurement method about the mobile phone starting of oscillation of DC vibrating motor and failure of oscillation time Download PDFInfo
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- CN105911855B CN105911855B CN201610206671.2A CN201610206671A CN105911855B CN 105911855 B CN105911855 B CN 105911855B CN 201610206671 A CN201610206671 A CN 201610206671A CN 105911855 B CN105911855 B CN 105911855B
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- G—PHYSICS
- G04—HOROLOGY
- G04F—TIME-INTERVAL MEASURING
- G04F10/00—Apparatus for measuring unknown time intervals by electric means
- G04F10/04—Apparatus for measuring unknown time intervals by electric means by counting pulses or half-cycles of an ac
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- Apparatuses For Generation Of Mechanical Vibrations (AREA)
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Abstract
The present invention discloses a kind of starting of oscillation and the measurement method of failure of oscillation time about mobile phone DC vibrating motor, including input signal, voltage signal and the acquisition for vibrating time-domain signal, the acquisition and starting of oscillation and the post-processing of failure of oscillation time of voltage starting and dwell time point calculate.It is characterized in that, receiving primary test signal, analysis acquires voltage signal back and time-domain signal and the calculating for carrying out starting of oscillation and failure of oscillation time respectively.The invention has the benefit that receiving primary test signal due to need to only send a pumping signal, can reaching while guaranteeing measuring accuracy and effectively reduce the testing time, reach raising testing efficiency, optimize the purpose of batch testing.
Description
Technical field
The present invention relates to a kind of measurement methods about the mobile phone starting of oscillation of DC vibrating motor and failure of oscillation time.
Background technique
In mobile phone test, motor vibrations are a relatively common test items.When the starting of oscillation of motor vibrations and failure of oscillation
Between, refer to a motor since by driving to the time of stable vibration and motor be stopped driving to stop vibration when
Between.
The starting of oscillation and the measurement method of failure of oscillation time of usual mobile phone DC vibrating motor are as follows: the nominal volume of transmission motor first
Constant voltage direct current signal below will vibrate time-domain signal acquisition through sound card again by accelerometer, then, steady in time-domain signal
10% and the 90% of maximum amplitude is taken to be used as starting point and end point in timing section, the differences of two values is time for being tested.This
Kind measurement method is not very accurate in theory, therefore the present invention passes through the acquisition to direct current signal and accurately obtains
At the time of taking at the time of wherein motor driven starts and drive stopping, accurately to calculate the starting of oscillation of motor in this, as parameter
With the failure of oscillation time.
The starting of oscillation and the measurement method process of failure of oscillation time that a kind of mobile phone DC vibrating motor is described in Fig. 1, are carrying out
When test, the DC pulse signal close to rated operational voltage is directly transmitted, two Channel Synchronous of sound card acquire DC voltage
Then the vibration time-domain signal of signal and motor analyzes the voltage signal received, obtain voltage starting time point TD1And
The time point T of stoppingD2, then analysis vibration time-domain signal, obtains first 90% time of the maximum amplitude of its stable period
Point TV1And the last one 10% time point TV2, carry out calculating and directly obtain starting of oscillation and failure of oscillation time.This test method it is excellent
Gesture is, it is only necessary to which starting of oscillation and the failure of oscillation time of motor monomer can be directly obtained by carrying out a signal transmitting and receiving, compare traditional test
It is accurately many.
Summary of the invention
The object of the present invention is to provide a kind of measurement method about the mobile phone starting of oscillation of DC vibrating motor and failure of oscillation time, solutions
Deficiency of the certainly existing measurement method in terms of measuring accuracy.
The purpose of the present invention is be achieved through the following technical solutions:
A kind of measurement method about the mobile phone starting of oscillation of DC vibrating motor and failure of oscillation time inputs including direct current and believes
Number, voltage signal and the acquisition for vibrating time-domain signal, when the acquisition and starting of oscillation of voltage starting and dwell time point and failure of oscillation
Between post-processing calculate.It is characterized in that, receiving primary test signal, go forward side by side to voltage signal and vibration time-domain signal analysis
The survey calculation of row starting of oscillation and failure of oscillation time.
The direct-flow input signal is direct current voltage pulse signal；
The acquisition of the voltage signal and vibration time-domain signal passes through the binary channels synchronous acquisition of sound card；
The acquisition of the voltage starting and dwell time point takes gradient maxima by the pulse slope of analysis acquisition signal
Method obtain；
The post-processing of the starting of oscillation and failure of oscillation time calculate the of the maximum amplitude for taking vibration time-domain signal to stablize the period
The difference of one 90% time point and the last one 10% time point and voltage starting and dwell time point calculates；
The input signal need to only acquire once；
The acquisition at first 90% time point and the last one 10% time point of the maximum amplitude passes through to set
The conditional that thresholding compares is set to calculate.
Detailed description of the invention
Below according to attached drawing, invention is further described in detail.
Fig. 1 is the detailed process for the test method that the present invention describes；
Fig. 2 is illustrating for the test method that the present invention describes；
Specific embodiment
Embodiment
As shown in Figure 1, a kind of starting of oscillation and failure of oscillation time measurement side about mobile phone DC vibrating motor of the present invention
Method, when including direct-flow input signal (1), voltage signal and vibrating acquisition (2), voltage starting and the stopping of time-domain signal
Between acquisition (3) starting of oscillation put and the post-processing of failure of oscillation time calculate (4).It is characterized in that, primary test signal need to be only received, it is right
Its slope and amplitude are analyzed, and starting of oscillation and the survey calculation of failure of oscillation time of mobile phone DC vibrating motor can be realized.
The direct current signal of external power supply a length of 3s when sending, by the binary channels synchronous acquisition of sound card, this period is sufficient
Enough drive motor monomer vibrations and failure of oscillation.Since sound card does not support direct current to acquire, the d. c. voltage signal received such as Fig. 2
(a), the voltage opening time T of the signal can be analyzed using maximum slope pointD1With voltage dwell time TD2；It is sound in Fig. 2 (b)
Block the motor vibrations time-domain signal of another channel reception, calculates 90% time of first maximum amplitude of signal stabilization period
Point TV1With 10% time point T of the last one maximum amplitudeV2；TD1And TV1Difference be Induction Peried, TD2And TV2Difference be
The failure of oscillation time.It can be seen that the fully synchronized property of two kinds of signals by Fig. 2 (c).
Induction Peried calculates:
The failure of oscillation time calculates:
Then this starting of oscillation and failure of oscillation time can be directly calculated by parameter provided above.
The present invention carries out mobile phone DC vibrating motor starting of oscillation and failure of oscillation time by a kind of relatively easy test mode
Test, can reach improve test precision, reduce the testing time, optimize the purpose of batch testing.
Claims (7)
1. a kind of measurement method about the mobile phone starting of oscillation of DC vibrating motor and failure of oscillation time, including directly transmitting close to volume
The input signal (1) of fixed working voltage, two Channel Synchronous acquisition d. c. voltage signal of sound card and the vibration time domain of motor
Acquisition (3), starting of oscillation and the post-processing of failure of oscillation time of signal (2), voltage starting and dwell time point calculate (4), and feature exists
In only pumping signal of transmission, receives primary test signal, carry out vibration time-domain signal analysis and calculated.
2. a kind of measurement method about the mobile phone starting of oscillation of DC vibrating motor and failure of oscillation time according to claim 1,
It is characterized in that the input signal (1) is direct current voltage pulse signal.
3. a kind of measurement method about the mobile phone starting of oscillation of DC vibrating motor and failure of oscillation time according to claim 1,
Be characterized in that the voltage signal and vibrate the acquisition (2) of time-domain signal by two channels distinguish collection voltages signals and
The time-domain signal of vibration.
4. a kind of measurement method about the mobile phone starting of oscillation of DC vibrating motor and failure of oscillation time according to claim 1,
It is characterized in that the acquisition (3) of the voltage starting and dwell time point namely obtains the time of voltage positive pulses and negative pulse
Point.
5. a kind of measurement method about the mobile phone starting of oscillation of DC vibrating motor and failure of oscillation time according to claim 1,
It is characterized in that the starting of oscillation and the post-processing of failure of oscillation time calculate (4) and vibration time-domain signal steady component maximum amplitude are respectively adopted
90% time point and voltage signal in voltage starting time point difference and maximum amplitude 10% time point and voltage believe
The difference of voltage dwell time point in number.
6. a kind of measurement method about the mobile phone starting of oscillation of DC vibrating motor and failure of oscillation time according to claim 3, special
Sign is the voltage signal and vibrates acquisition (2) the difference collection voltages signal of time-domain signal and the time domain letter of vibration
Number, it is characterised in that two signals are acquired using the left and right Channel Synchronous of sound card.
7. a kind of measurement method about the mobile phone starting of oscillation of DC vibrating motor and failure of oscillation time according to claim 4, special
Levy the time for being that the acquisition (3) of the voltage starting and dwell time point namely obtains voltage positive pulses and negative pulse
Point, using direct impulse point when voltage starting with stop when negative-going pulse point maximum slope the characteristics of calculate.
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| CN201610206671.2A CN105911855B (en) | 2016-04-06 | 2016-04-06 | A kind of measurement method about the mobile phone starting of oscillation of DC vibrating motor and failure of oscillation time |
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| CN201610206671.2A CN105911855B (en) | 2016-04-06 | 2016-04-06 | A kind of measurement method about the mobile phone starting of oscillation of DC vibrating motor and failure of oscillation time |
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| CN105911855A CN105911855A (en) | 2016-08-31 |
| CN105911855B true CN105911855B (en) | 2019-04-09 |
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Citations (4)
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| CN1558482A (en) * | 2004-01-15 | 2004-12-29 | 叶念国 | Static exciter inrush current inhibition method and apparatus |
| CN102193034A (en) * | 2010-03-15 | 2011-09-21 | 株式会社泰塞克 | Time width detecting device |
| CN103472422A (en) * | 2013-08-20 | 2013-12-25 | 国家电网公司 | Checking method of geoelectrical wave detecting instrument |
| CN103939081A (en) * | 2014-05-07 | 2014-07-23 | 中国石油大学(华东) | Fast logging engineering parameter data collecting system and processing method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005057904B4 (en) * | 2004-12-02 | 2009-05-07 | Alps Electric Co., Ltd. | Electric window lift with pinch detection function |
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2016
- 2016-04-06 CN CN201610206671.2A patent/CN105911855B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1558482A (en) * | 2004-01-15 | 2004-12-29 | 叶念国 | Static exciter inrush current inhibition method and apparatus |
| CN102193034A (en) * | 2010-03-15 | 2011-09-21 | 株式会社泰塞克 | Time width detecting device |
| CN103472422A (en) * | 2013-08-20 | 2013-12-25 | 国家电网公司 | Checking method of geoelectrical wave detecting instrument |
| CN103939081A (en) * | 2014-05-07 | 2014-07-23 | 中国石油大学(华东) | Fast logging engineering parameter data collecting system and processing method thereof |
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Address after: 100102 3A, SOHO tower, Wangjing East Avenue, Beijing, Chaoyang District, 1001 Applicant after: Beijing Ruisen new spectrum Polytron Technologies Inc Applicant after: Feng Chuanliang Address before: 100102 3A, SOHO tower, Wangjing East Avenue, Beijing, Chaoyang District, 1001 Applicant before: BEIJING RS TECHNOLOGY CO., LTD. Applicant before: Feng Chuanliang |
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