CN108654967A - Detection method, device and the ultrasonic transducer of ultrasonic transducer resonant frequency - Google Patents
Detection method, device and the ultrasonic transducer of ultrasonic transducer resonant frequency Download PDFInfo
- Publication number
- CN108654967A CN108654967A CN201710197992.5A CN201710197992A CN108654967A CN 108654967 A CN108654967 A CN 108654967A CN 201710197992 A CN201710197992 A CN 201710197992A CN 108654967 A CN108654967 A CN 108654967A
- Authority
- CN
- China
- Prior art keywords
- frequency
- ultrasonic transducer
- value
- current value
- pumping signal
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/0207—Driving circuits
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
- G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Surgical Instruments (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The present invention provides a kind of detection method, device and the ultrasonic transducer of ultrasonic transducer resonant frequency, wherein the detection method of the ultrasonic transducer resonant frequency includes：During frequency sweep, the current value variable condition of pumping signal output loop in ultrasonic transducer is detected；First frequency value when determining that the ultrasonic transducer works to antiresonance point according to the current value variable condition；Second frequency value is calculated according to the default bandwidth of the ultrasonic transducer and the first frequency value, using the second frequency value as the working frequency of the ultrasonic transducer.Compared with the prior art, the working frequency detected by this method is the accuracy higher of the resonant frequency of ultrasonic transducer.In addition, there is same function and effect with the corresponding detection device of detection method and ultrasonic transducer stated.
Description
Technical field
The present invention relates to ultrasonic transducer technical field more particularly to a kind of detection sides of ultrasonic transducer resonant frequency
Method, device and ultrasonic transducer.
Background technology
Ultrasonic transducer is a kind of equipment that can the electrical power of input be converted into mechanical output (i.e. ultrasonic wave), including but
It is not limited to apply on the medical equipment of piezosurgery osteotomy etc..When ultrasonic transducer works, generally found by frequency sweep
Its best working frequency (i.e. resonant frequency).
In the prior art, the method for determining resonant frequency can specifically have following two modes：
Phase-detection scanning method carries out the frequency scanning of output loop, when the electric current in output loop within a certain range
It is identical with the phase of voltage, the moment output frequency is recorded, the resonant frequency (working frequency) as system.Due to phase-detection
Scanning method needs to carry out based on the impedance matching on hardware, and the quality of impedance matching directly affects the effect of frequency sweep, so the party
The robust property of method is not strong.
Loop current detects scanning method, output loop frequency scanning is carried out within a certain range, to defeated during frequency sweep
The electric current gone out in circuit is monitored, the output frequency of etching system when record output loop electric current is maximum value, as system
Resonant frequency (working frequency).Its principle is：In frequency sweeping ranges, the frequency sweep since low frequency point, in output loop
Electric current have the tendency that slowly rising, when ultrasonic transducer is in resonant condition, the electric current in output loop reaches maximum value,
According to frequency-current relationship of ultrasonic transducer it is found that the corresponding frequency values in current maxima place are ultrasonic transducer
Resonant frequency.But in practice, at the electric current and resonant frequency point in the resonant frequency point output loop that nearby frequency point is acquired
Electric current difference in the output loop of acquisition is smaller, especially in the case where there is external interference, will cause determined by frequency sweep
There are larger errors between working frequency and actual resonant frequency.
In view of the prior art, there are between above-mentioned working frequency and actual resonance frequency to ultrasonic transducer setting
There may be the defects of large error, how quickly and accurately to determine the working frequency of ultrasonic transducer, are current this fields
Technical staff's technical problem to be solved.
Invention content
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of ultrasonic transducer resonant frequencies
Detection method, device and ultrasonic transducer, for solves how quickly and accurately determine ultrasonic transducer work frequently
The problem of rate.
In order to achieve the above objects and other related objects, the present invention provides following technical scheme：
According to the first aspect of the invention
A kind of detection method of ultrasonic transducer resonant frequency, including：During frequency sweep, detects in ultrasonic transducer and swash
Encourage the current value variable condition of signal output loop；According to the current value variable condition determine the ultrasonic transducer work to
First frequency value when antiresonance point；It is calculated according to the default bandwidth of the ultrasonic transducer and the first frequency value
Two frequency values, using the second frequency value as the working frequency of the ultrasonic transducer.
According to the second aspect of the invention
A kind of detection device of energy converter resonant frequency, including：Scan module, for during frequency sweep, detection to be ultrasonic
The current value variable condition of pumping signal output loop in energy converter；First frequency detection module, for according to the current value
Variable condition determines the first frequency value when ultrasonic transducer works to antiresonance point；Second frequency detection module, is used for
Second frequency value is calculated according to the default bandwidth of the ultrasonic transducer and the first frequency value, by the second frequency
It is worth the working frequency as the ultrasonic transducer.
According to the third aspect of the invention we
A kind of detection device in ultrasonic transducer, including above-mentioned second aspect.
The invention has the advantages that：The present invention is changed by the curent change state of output loop to examine ultrasound indirectly
Energy device determines the working frequency of ultrasonic transducer further according to the frequency values, compared to existing skill in the frequency values of antiresonance point
The method for directly determining the working frequency of ultrasonic transducer in art according to the curent change state of output loop, the frequency of antiresonance point
Rate value is more prone to determine and error range is small so that the working frequency of finally determining ultrasonic transducer with it is actual humorous
Error between vibration frequency is smaller.
Description of the drawings
Fig. 1 is shown as a kind of flow chart of the detection method of ultrasonic transducer resonant frequency of the present invention.
Fig. 2 is shown as the functional arrangement of the frequency current relationship of ultrasonic transducer during frequency sweep.
Fig. 3 is according to a kind of a kind of specific implementation mode flow of the detection method of ultrasonic transducer resonant frequency of the present invention
Figure.
Fig. 4 is shown as a kind of schematic diagram of the detection device of ultrasonic transducer resonant frequency of the present invention.
Component label instructions
300 detection devices
310 scan modules
320 first frequency detection modules
330 second frequency detection modules
S11-S13 steps
S21-S213 steps
Specific implementation mode
Illustrate that embodiments of the present invention, those skilled in the art can be by this specification below by way of specific specific example
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also be based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under the spirit of the present invention.It should be noted that in the absence of conflict, following embodiment and implementation
Feature in example can be combined with each other.
It should be noted that the diagram provided in following embodiment only illustrates the basic structure of the present invention in a schematic way
Think, component count, shape and size when only display is with related component in the present invention rather than according to actual implementation in schema then
Draw, when actual implementation kenel, quantity and the ratio of each component can be a kind of random change, and its assembly layout kenel
It is likely more complexity.
Ultrasonic transducer in the embodiment of the present invention is that a kind of that the electrical power of input can be converted into mechanical output is (i.e. super
Sound wave) equipment, including but not limited to apply on the medical equipment of piezosurgery osteotomy etc..
Embodiment 1
According to the first aspect of the invention, this gives a kind of detection method of ultrasonic transducer resonant frequency,
See that Fig. 1, the detection method include specific following steps：
S11 detects the current value variable condition of pumping signal output loop in ultrasonic transducer during frequency sweep.
In this step, pumping signal output loop (hereafter also referred to as：Circuit or output loop) refer to by pumping signal
Send the excitation power supply output system that electric energy storage components in ultrasonic transducer generate vibration to cause electric field or changes of magnetic field to.
Wherein, if ultrasonic transducer working frequency is resonant frequency, the working performance of entire ultrasonic system is best, therefore
It is crucial for how accurately finding the resonant frequency of ultrasonic transducer.
In addition, see Fig. 2, during frequency sweep, the frequency sweep since low frequency point, the electric current in circuit has what is slowly risen to become
Gesture.When ultrasonic transducer is in resonant condition, the electric current in circuit reaches maximum value, but frequency point is acquired near resonance point
Loop current and at resonance point acquire loop current difference it is smaller, i.e. current curve slope at the Frequency point is relatively low.Phase
Instead, in antiresonance point vicinity, current value changes very greatly, i.e. current curve slope in the frequency range is higher, is conducive to most
The acquisition and screening of big value (electric current at antiresonance point), to be accurately obtained the frequency of antiresonance point.
Wherein, frequency sweep carrys out output drive signal according to certain frequency rule.
Specifically, during frequency sweep, the mode that frequency increments may be used generates the pumping signal, or can also
The pumping signal is generated in such a way that frequency is successively decreased.
Usually, if generating the pumping signal by the way of frequency increments, the pumping signal that generates
Original frequency be less than predeterminated frequency value；Similarly, it if generating the pumping signal in such a way that frequency is successively decreased, generates
The pumping signal original frequency be higher than predeterminated frequency value.Because user when taking ultrasonic transducer, is that can not determine
Its resonant frequency, we must find resonant frequency by frequency sweep, therefore the true resonance frequency of ultrasonic transducer should
In the range of frequency sweep.It should be pointed out that since ultrasonic transducer is gradually incremental from low to high in pumping signal output frequency
In the process, working frequency can successively reach at resonant frequency and at anti-resonance frequency, and ultrasonic transducer is operated in antiresonance frequency
Calorific value when at rate is the largest, and in other words, the working condition of ultrasonic transducer is least ideal at this time, therefore, is adopted
With pumping signal output frequency, gradually incremental mode can preferably protect ultrasonic transducer from low to high.
Wherein, the reference value that predeterminated frequency value is generally provided before equipment manufacture by technical staff, general default frequency
Rate value is close with the actual resonant frequency of ultrasonic transducer, therefore before being not known by the resonant frequency of ultrasonic transducer, Ke Yili
With the predeterminated frequency value as a reference to carrying out frequency sweep.
S12, the first frequency when determining that the ultrasonic transducer is operated in antiresonance point according to the current value variable condition
Rate value.
In this step, ultrasonic transducer is not directly detected in resonance according to current value variable condition in output loop
Frequency values at point, but directly detection ultrasonic transducer is operated in the frequency values at antiresonance point.Because attached in antiresonance point
Nearby, very greatly, i.e. current curve slope in the frequency range is higher, so as to accurately acquire and screen for current value variation
Obtain the frequency (i.e. first frequency value) of antiresonance point.
Wherein, according to the difference of sweep method in step S11, the determination method of first frequency value also will be different.
Specifically, the mode according to frequency increments generates the pumping signal, then it is described to be changed according to the current value
State determines that the first frequency value when ultrasonic transducer works to antiresonance point includes：Current value variation tendency is detected,
After current value variation tendency becomes downward trend from upper lifting trend, the current value variation tendency is recorded in by downward trend
The frequency values for becoming the upper lifting trend moment, as the first frequency value.
Specifically, the pumping signal is generated in such a way that frequency is successively decreased, then it is described that shape is changed according to the current value
State determines that the first frequency value when ultrasonic transducer works to antiresonance point includes：Current value variation tendency is detected, in electricity
Flow valuve variation tendency be downward trend after, when be recorded in the current value variation tendency becomes upper lifting trend from downward trend
The frequency values at quarter, as the first frequency value.
Second frequency value is calculated according to the default bandwidth of the ultrasonic transducer and the first frequency value in S13, will
Working frequency of the second frequency value as the ultrasonic transducer.
In this step, default bandwidth is known.It, can be to ultrasonic transducer by design generally in Practical Project
Bandwidth controlled, i.e., known to bandwidth.Wherein, bandwidth=Shu ultrasonic transducers anti-resonance frequency-resonant frequency Shu.Finally, it examines
After the working frequency for measuring ultrasonic transducer, stop frequency sweep.
Specifically, according to the antiresonance point frequency (i.e. first frequency value) that abovementioned steps obtain, and combine above-mentioned bandwidth special
Property, it is easy to the resonant frequency of ultrasonic transducer is calculated.The method for first directly calculating resonant frequency than in the prior art, this
Invention can greatly improve the robustness of algorithm.
The embodiment of the present invention is by the curent change state of output loop come indirect detection ultrasonic transducer in antiresonance point
Frequency values, the working frequency of ultrasonic transducer is determined further according to the frequency values, compared with the prior art according to exporting back
The method that the curent change state on road directly determines the working frequency of ultrasonic transducer, the frequency values of antiresonance point are more prone to true
Fixed and error range is small, so that the finally mistake between the working frequency and actual resonant frequency of determining ultrasonic transducer
Difference is smaller.
Embodiment 2
It according to the first aspect of the invention it is found that can in such a way that pumping signal output frequency is gradually incremental from low to high
Ultrasonic transducer is preferably protected, is preferred embodiment, therefore the present embodiment side in conjunction with described in frequency sweep process and Fig. 1
A kind of detection method of ultrasonic transducer resonant frequency is set forth more particularly in method, sees that Fig. 3, the detection method include specific
Following steps：
S21 determines the range of frequency sweep, and the frequency sweep since low frequency point.
Wherein, the true resonance frequency of ultrasonic transducer should be in the range of the frequency sweep of setting.
S22 gradually increases the range of frequency sweep.
S23 samples the current value of pumping signal output loop.
S24 judges whether electric current is on the rise.
Specifically, if it is determined that be yes, S25 is thened follow the steps, otherwise continues to execute step S22.
S25 gradually increases the frequency of frequency sweep.
S26 samples the current value of pumping signal output loop.
S27, judges whether electric current has downward trend.
Specifically, if it is determined that be yes, S28 is thened follow the steps, otherwise continues to execute step S25.
S28 gradually increases the frequency of frequency sweep.
S29 samples the current value of pumping signal output loop.
S210 judges whether electric current is on the rise.
Specifically, if it is determined that be yes, S211 is thened follow the steps, otherwise continues to execute step S28.
Second frequency value is calculated according to default bandwidth and first frequency value in S211.
S212, using second frequency value as the working frequency of ultrasonic transducer.
S213 stops frequency sweep.
Embodiment 3
According to the second aspect of the invention, the present embodiment additionally provides a kind of detection device of energy converter resonant frequency, sees
Fig. 4, the detection device 300 include scan module 310, first frequency detection module 320 and second frequency detection module 330,
Wherein, scan module 310, the current value for during frequency sweep, detecting circuit where pumping signal in ultrasonic transducer become
Change state；First frequency detection module 320, for according to the current value variable condition determine the ultrasonic transducer work to
First frequency value when antiresonance point；Second frequency detection module 330, for according to the default bandwidth of the ultrasonic transducer and
Second frequency value is calculated in the first frequency value, using the second frequency value as the work of ultrasonic transducer frequency
Rate.
Wherein, the scan module 310 is specifically used for during frequency sweep, is generated by the way of frequency increments described sharp
Signal is encouraged, and the original frequency of the pumping signal generated is less than predeterminated frequency value；Alternatively, during frequency sweep, using frequency
The mode that rate is successively decreased generates the pumping signal, and the original frequency of the pumping signal generated is higher than predeterminated frequency value.
If specifically, the scan module 310 generates the pumping signal by the way of frequency increments, described first
Frequency detection module 320 is specifically used for detection current value variation tendency, in the case where current value variation tendency is become from upper lifting trend
After drop trend, being recorded in the current value variation tendency was become the frequency values at upper lifting trend moment from downward trend, as
The first frequency value.
If specifically, the scan module 310 generates the pumping signal in such a way that frequency is successively decreased, described first
Frequency detection module 320 is specifically used for detection current value variation tendency, after current value variation tendency is downward trend, record
The frequency values for becoming the upper lifting trend moment from downward trend in the current value variation tendency, as the first frequency value.
In addition, the second frequency detection module 330 is specifically used for calculating the first frequency value and the default bandwidth
Absolute value of the difference, as the second frequency value.
The dividing mode of above functions module is only a kind of preferred implementation that the embodiment of the present invention provides, function module
Dividing mode be not construed as limiting the invention.For convenience of description, each section of system above is divided into function
Various modules or unit describe respectively.Certainly, in carrying out the present invention can each module or the function of unit same or
It is realized in multiple softwares or hardware.
Obviously, above-mentioned detection device or detection method can also be applied in ultrasonic transducer in practical applications,
To obtain a kind of new ultrasonic transducer with above-mentioned detection device function.
The embodiment of the present invention is by the way that in frequency sweeping process, scan module 310 is swept since low frequency point or high frequency points
Frequently, the electric current in circuit has the variation tendency slowly risen or fallen, when ultrasonic transducer is in antiresonance state, in circuit
Electric current reach minimum value, by frequency point is acquired near antiresonance point loop current and the circuit that is acquired at antiresonance point
Electric current difference is apparent, i.e. current curve slope at the Frequency point is higher, to which first frequency detection module 320 can be accurately
Frequency when ultrasonic transducer is operated in antiresonance point is found, and then second frequency detection module 330 is further according to ultrasonic transducer
Bandwidth calculate the working frequency of ultrasonic transducer, i.e. resonant frequency, it is real with ultrasonic transducer in this way to obtain working frequency
Error very little between the resonant frequency on border.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology can all carry out modifications and changes to above-described embodiment without violating the spirit and scope of the present invention.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should by the present invention claim be covered.
Claims (11)
1. a kind of detection method of ultrasonic transducer resonant frequency, which is characterized in that including：
During frequency sweep, the current value variable condition of pumping signal output loop in ultrasonic transducer is detected；
First frequency value when determining that the ultrasonic transducer works to antiresonance point according to the current value variable condition；
Second frequency value is calculated according to the default bandwidth of the ultrasonic transducer and the first frequency value, by described second
Working frequency of the frequency values as the ultrasonic transducer.
2. the detection method of ultrasonic transducer resonant frequency according to claim 1, it is characterised in that：
During frequency sweep, the pumping signal is generated by the way of frequency increments, and the pumping signal generated is first
Beginning frequency is less than predeterminated frequency value；Alternatively,
During frequency sweep, the pumping signal is generated in such a way that frequency is successively decreased, and the pumping signal generated is first
Beginning frequency is higher than predeterminated frequency value.
3. the detection method of ultrasonic transducer resonant frequency according to claim 2, it is characterised in that：It is passed according to frequency
The mode of increasing generates the pumping signal, then it is described according to the current value variable condition determine the ultrasonic transducer work to
First frequency value when antiresonance point includes：
Detection current value variation tendency is recorded in institute after current value variation tendency becomes downward trend from upper lifting trend
Stating current value variation tendency was become the frequency values at upper lifting trend moment from downward trend, as the first frequency value.
4. the detection method of ultrasonic transducer resonant frequency according to claim 2, it is characterised in that：It is passed according to frequency
The mode subtracted generates the pumping signal, then it is described according to the current value variable condition determine the ultrasonic transducer work to
First frequency value when antiresonance point includes：
Current value variation tendency is detected, after current value variation tendency is downward trend, the current value variation is recorded in and becomes
Gesture was become the frequency values at upper lifting trend moment from downward trend, as the first frequency value.
5. according to the detection method of any ultrasonic transducer resonant frequencies of claim 1-4, it is characterised in that：Described
Second frequency value is calculated according to the default bandwidth and the first frequency value of the ultrasonic transducer to specifically include：Described in calculating
The absolute value of the difference of first frequency value and the default bandwidth, as the second frequency value.
6. a kind of detection device of ultrasonic transducer resonant frequency, which is characterized in that including：
Scan module, the current value for during frequency sweep, detecting pumping signal output loop in ultrasonic transducer change shape
State；
First frequency detection module, for determining that the ultrasonic transducer works to antiresonance according to the current value variable condition
First frequency value when point；
Second frequency detection module, for being calculated according to the default bandwidth and the first frequency value of the ultrasonic transducer
Second frequency value, using the second frequency value as the working frequency of the ultrasonic transducer.
7. the detection device of ultrasonic transducer resonant frequency according to claim 6, it is characterised in that：
The scan module is specifically used for during frequency sweep, the pumping signal is generated by the way of frequency increments, and produce
The original frequency of the raw pumping signal is less than predeterminated frequency value；Alternatively,
For during frequency sweep, generating the pumping signal, and the pumping signal generated in such a way that frequency is successively decreased
Original frequency be higher than predeterminated frequency value.
8. the detection device of ultrasonic transducer resonant frequency according to claim 7, it is characterised in that：If the frequency sweep mould
Block generates the pumping signal by the way of frequency increments, then the first frequency detection module is specifically used for detection current value
Variation tendency is recorded in the current value variation and becomes after current value variation tendency becomes downward trend from upper lifting trend
Gesture was become the frequency values at upper lifting trend moment from downward trend, as the first frequency value.
9. the detection device of ultrasonic transducer resonant frequency according to claim 7, it is characterised in that：If the frequency sweep mould
Block generates the pumping signal in such a way that frequency is successively decreased, then the first frequency detection module is specifically used for detection current value
Variation tendency is recorded in the current value variation tendency and is become by downward trend after current value variation tendency is downward trend
For the frequency values at upper lifting trend moment, as the first frequency value.
10. the detection device of ultrasonic transducer resonant frequency according to claim 6, it is characterised in that：Second frequency
Rate detection module is specifically used for calculating the absolute value of the difference of the first frequency value and the default bandwidth, as second frequency
Rate value.
11. a kind of ultrasonic transducer, which is characterized in that humorous including any ultrasonic transducers of the claims 6-10
The detection device of vibration frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710197992.5A CN108654967B (en) | 2017-03-29 | 2017-03-29 | Ultrasonic transducer resonant frequency detection method and device and ultrasonic transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710197992.5A CN108654967B (en) | 2017-03-29 | 2017-03-29 | Ultrasonic transducer resonant frequency detection method and device and ultrasonic transducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108654967A true CN108654967A (en) | 2018-10-16 |
| CN108654967B CN108654967B (en) | 2020-09-22 |
Family
ID=63786259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710197992.5A Active CN108654967B (en) | 2017-03-29 | 2017-03-29 | Ultrasonic transducer resonant frequency detection method and device and ultrasonic transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108654967B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110448355A (en) * | 2019-08-09 | 2019-11-15 | 珠海维尔康生物科技有限公司 | A kind of ultrasound knife resonance frequency tracking auto-reset method and its equipment |
| CN110507389A (en) * | 2019-08-26 | 2019-11-29 | 珠海维尔康生物科技有限公司 | A kind of ultrasound knife centre frequency dynamic adjusting method and ultrasound knife |
| CN111381529A (en) * | 2018-12-29 | 2020-07-07 | 重庆西山科技股份有限公司 | Frequency control circuit, method and device and ultrasonic transducer system |
| CN111569199A (en) * | 2020-04-24 | 2020-08-25 | 深圳麦克韦尔科技有限公司 | Dry burning prevention method and device for atomizer, atomizer and storage medium |
| CN111605204A (en) * | 2020-05-08 | 2020-09-01 | 汇专科技集团股份有限公司 | Control method for ultrasonic welding system, and storage medium |
| CN112034899A (en) * | 2019-06-04 | 2020-12-04 | 湖南中烟工业有限责任公司 | Ultrasonic atomization sheet oscillation control method and control system |
| CN112618972A (en) * | 2020-12-28 | 2021-04-09 | 中聚科技股份有限公司 | Ultrasonic transducer driving method, system and device |
| CN113272680A (en) * | 2018-11-19 | 2021-08-17 | 法雷奥开关和传感器有限责任公司 | Method for determining state of ultrasonic sensor diaphragm and analysis system |
| CN113713278A (en) * | 2021-08-11 | 2021-11-30 | 未来穿戴技术股份有限公司 | Output control method of ultrasonic physiotherapy equipment and ultrasonic physiotherapy equipment |
| CN114129226A (en) * | 2021-12-30 | 2022-03-04 | 苏州领微医疗科技有限公司 | Ultrasonic knife and acoustic resonance frequency searching method and system thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104252146A (en) * | 2013-06-28 | 2014-12-31 | 东莞华中科技大学制造工程研究院 | Method and device for driving ultrasonic transducer |
| CN105305966A (en) * | 2015-09-14 | 2016-02-03 | 佛山市铬维科技有限公司 | Ultrasonic processing machine tool based automatic frequency sweeping device and frequency sweeping method |
-
2017
- 2017-03-29 CN CN201710197992.5A patent/CN108654967B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104252146A (en) * | 2013-06-28 | 2014-12-31 | 东莞华中科技大学制造工程研究院 | Method and device for driving ultrasonic transducer |
| CN105305966A (en) * | 2015-09-14 | 2016-02-03 | 佛山市铬维科技有限公司 | Ultrasonic processing machine tool based automatic frequency sweeping device and frequency sweeping method |
Non-Patent Citations (3)
| Title |
|---|
| 刘丽晨等: "超声换能器并联谐振频率的复合式跟踪方法研究", 《应用声学》 * |
| 左传勇等: "基于电流和相位差的超声换能器频率自动跟踪", 《应用声学》 * |
| 董惠娟等: "压电超声换能器电端匹配下的电流反馈式频率跟踪", 《哈尔滨工业大学学报》 * |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12000966B2 (en) | 2018-11-19 | 2024-06-04 | Valeo Schalter Und Sensoren Gmbh | Method and analysis system for determining a state of a diaphragm of an ultrasound sensor |
| CN113272680B (en) * | 2018-11-19 | 2024-05-03 | 法雷奥开关和传感器有限责任公司 | Method for determining diaphragm state of ultrasonic sensor and analysis system |
| CN113272680A (en) * | 2018-11-19 | 2021-08-17 | 法雷奥开关和传感器有限责任公司 | Method for determining state of ultrasonic sensor diaphragm and analysis system |
| CN111381529B (en) * | 2018-12-29 | 2021-12-03 | 重庆西山科技股份有限公司 | Frequency control circuit, method and device and ultrasonic transducer system |
| CN111381529A (en) * | 2018-12-29 | 2020-07-07 | 重庆西山科技股份有限公司 | Frequency control circuit, method and device and ultrasonic transducer system |
| CN112034899A (en) * | 2019-06-04 | 2020-12-04 | 湖南中烟工业有限责任公司 | Ultrasonic atomization sheet oscillation control method and control system |
| CN110448355B (en) * | 2019-08-09 | 2020-04-07 | 珠海维尔康生物科技有限公司 | Ultrasonic knife resonant frequency tracking automatic reset method and equipment thereof |
| CN110448355A (en) * | 2019-08-09 | 2019-11-15 | 珠海维尔康生物科技有限公司 | A kind of ultrasound knife resonance frequency tracking auto-reset method and its equipment |
| CN110507389A (en) * | 2019-08-26 | 2019-11-29 | 珠海维尔康生物科技有限公司 | A kind of ultrasound knife centre frequency dynamic adjusting method and ultrasound knife |
| CN111569199A (en) * | 2020-04-24 | 2020-08-25 | 深圳麦克韦尔科技有限公司 | Dry burning prevention method and device for atomizer, atomizer and storage medium |
| CN111569199B (en) * | 2020-04-24 | 2023-09-12 | 深圳麦克韦尔科技有限公司 | Dry burning prevention method and device for atomizer, atomizer and storage medium |
| WO2021223472A1 (en) * | 2020-05-08 | 2021-11-11 | 汇专科技集团股份有限公司 | Ultrasonic welding system control method, ultrasonic welding system, and storage medium |
| US11285676B2 (en) | 2020-05-08 | 2022-03-29 | Conprofe Technology Group Co., Ltd. | Control method of ultrasonic welding system, ultrasonic welding system and storage medium |
| CN111605204B (en) * | 2020-05-08 | 2021-03-19 | 汇专科技集团股份有限公司 | Control method for ultrasonic welding system, and storage medium |
| CN111605204A (en) * | 2020-05-08 | 2020-09-01 | 汇专科技集团股份有限公司 | Control method for ultrasonic welding system, and storage medium |
| CN112618972B (en) * | 2020-12-28 | 2022-06-03 | 中聚科技股份有限公司 | Ultrasonic transducer driving method, storage medium, system and device |
| CN112618972A (en) * | 2020-12-28 | 2021-04-09 | 中聚科技股份有限公司 | Ultrasonic transducer driving method, system and device |
| CN113713278A (en) * | 2021-08-11 | 2021-11-30 | 未来穿戴技术股份有限公司 | Output control method of ultrasonic physiotherapy equipment and ultrasonic physiotherapy equipment |
| CN114129226A (en) * | 2021-12-30 | 2022-03-04 | 苏州领微医疗科技有限公司 | Ultrasonic knife and acoustic resonance frequency searching method and system thereof |
| CN114129226B (en) * | 2021-12-30 | 2024-03-12 | 苏州领微医疗科技有限公司 | Ultrasonic knife and method and system for searching acoustic resonance frequency of ultrasonic knife |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108654967B (en) | 2020-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108654967A (en) | Detection method, device and the ultrasonic transducer of ultrasonic transducer resonant frequency | |
| JP5417942B2 (en) | Power transmission device, power transmission / reception device, and power transmission method | |
| CN111817711B (en) | Frequency tracking method of ultrasonic processing system | |
| WO2014180346A1 (en) | Method and system for finding transducer resonant frequency | |
| JP2016536124A (en) | Control and monitoring of atomizer vibration aperture drive frequency | |
| US10868486B2 (en) | Low power adaptive linear resonant actuator driver using accelerometer | |
| CN101574757A (en) | Control system of ultrasonic welding machine | |
| CN111679128B (en) | Power grid impedance measurement method based on variable PWM carrier frequency | |
| CN103926850A (en) | Tuning A Parameter Associated With Plasma Impedance | |
| CN109696630A (en) | A kind of voice coil motor parameter self-sensing method | |
| WO2016079613A1 (en) | Noise detection method, noise detection apparatus and electronic equipment | |
| CN110031229B (en) | Motor bandwidth measuring method and device | |
| CN117653283A (en) | Frequency locking method for ultrasonic surgical instrument transducer | |
| CN109917193A (en) | A kind of dielectric constant measuring apparatus | |
| CN103944280B (en) | A kind of wireless power transmission equipment transmitting terminal dynamic tuning device and tuning methods thereof | |
| CN111781499A (en) | Electric tuning test method, device, electronic equipment, storage medium and system | |
| TW201310303A (en) | Control system of a touch panel and a control method thereof | |
| CN104880608A (en) | Cable dielectric loss sweep frequency test method based on correlational analysis method | |
| CN113985127A (en) | Multi-band resonant frequency tracking circuit and method applied to ultrasonic processing | |
| Wei et al. | Design of an automatic impedance matching circuit based on frequency tracking of ultrasonic transducer | |
| CN106930964B (en) | Piezoelectric fan intrinsic frequency measurement method and piezoelectric fan | |
| CN109731781A (en) | Regulation method and regulation device based on ultrasonic screening system | |
| TW201324499A (en) | Oscillating device for frequency detection, ultrasonic transceiver system and frequency detection method thereof | |
| CN114252767A (en) | Method and device for generating sweep frequency characteristic curve and storage medium | |
| CN203811124U (en) | Flexible radio frequency monocrystalline silicon thin film bidirectional dynamic strain sensor |
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 |