CN103191886B - Method for detecting surface pollution degree through ultrasonic wave and cleaning pollution - Google Patents
Method for detecting surface pollution degree through ultrasonic wave and cleaning pollution Download PDFInfo
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- CN103191886B CN103191886B CN201310111753.5A CN201310111753A CN103191886B CN 103191886 B CN103191886 B CN 103191886B CN 201310111753 A CN201310111753 A CN 201310111753A CN 103191886 B CN103191886 B CN 103191886B
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- ultrasonic
- cleaning
- ultrasonic transducer
- ultrasonic wave
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- 238000004140 cleaning Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000003344 environmental pollutant Substances 0.000 claims description 11
- 231100000719 pollutant Toxicity 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 8
- 238000002604 ultrasonography Methods 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 230000010358 mechanical oscillation Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 6
- 230000006378 damage Effects 0.000 abstract description 2
- 238000010897 surface acoustic wave method Methods 0.000 description 17
- 238000005516 engineering process Methods 0.000 description 6
- 239000000356 contaminant Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 241000251468 Actinopterygii Species 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000644 propagated effect Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000004506 ultrasonic cleaning Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
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- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention discloses a method for detecting the surface pollution degree through ultrasonic wave and cleaning the pollution. An ultrasonic transducer emits ultrasonic wave and receives the ultrasonic wave, and in pollution degree detection, the ultrasonic transducer emits sound surface wave with the frequency of F1, the sound surface wave is broadcasted along the cleaned surface and then is received by the ultrasonic transducer; when the pollution degree varies, the strength of the sound surface wave received by the ultrasonic transducer can be different, the strength of the output electric signals can be different, when the electric signals reach certain preset values, the ultrasonic transducer emits ultrasonic wave with the frequency of F2 to clean the surface, and after a period of cleaning, cleaning can be stopped for detecting again. By means of the method, the surface pollution degree can be detected ceaselessly, cleaning can be performed automatically according to the pollution degree, the surface can be always kept clean, damage to the surface can be reduced, and energy is saved.
Description
Technical field
The present invention relates to a kind of method utilizing Ultrasonic Cleaning surface, particularly relate to a kind of method utilizing the automatic clean surface of ultrasonic wave according to surface pollution degree.
Background technology
The pollution that in use some object can be subject to extraneous bad border makes surface dirty, needs the pollutant constantly removing surface, such as car light and vehicle window.In existing technology, some technology can only remove the pollutant on surface, if application number is " 02149762.1 ", in the Chinese patent that name is called " Ultrasonic wave cleaning processor ", discloses the sweep-out method of pollutant on chamber wall; The pollutant on some technology for detection surface, as being " 200410033011 " at Chinese application number, name is called in the patent of " for measuring the method and apparatus of element surface pollutant in lithographic equipment ", adopt radiation receiver to receive pollutant radiation and obtain the attribute of pollutant according to radiation properties, to detect surface contaminant; Be " 201010235705.3 " at application number, in the Chinese patent that name is called " adopting vehicle lamp cleaning device and the method for ultrasonic wave and sensor ", adopt testing environment temperature and humidity, and adopt different schemes on this basis, maintain car light surface cleanliness.
There is following shortcoming in existing technology: can not clean according to pollution level, sometimes do not need to carry out cleaning and cleaning, and causes excessive cleaning, affect service life; Sometimes surface contaminant needs cleaning and can not remove surface contaminant in time; Still lack a kind of can the degree of direct-detection surface contamination, and clean surface on this basis, combines detection technique and cleaning technique, and the method effectively reduced costs.
Therefore need urgently to solve the problem, provide a kind of and detect surface pollution degree and the method for automatic clean surface on this basis.
Summary of the invention
The invention discloses a kind of inspected object surface pollution degree and the method for automatic cleaning of objects surface contaminant, first the method detects the pollution level on surface, then according to pollution level, controls the cleaning of effects on surface;
The method that the present invention adopts is:
Select ultrasonic transducer, ultrasonic transducer can convert the signal of telecommunication of input to mechanical oscillation, thus produces ultrasonic wave, also can receive ultrasonic wave, convert ultrasonic wave to the signal of telecommunication, export to follow-up circuit;
Step 1, detects the pollution level on surface; It is F1 that ultrasonic drive produces frequency, intensity is the signal of telecommunication of A1, drive ultrasonic transducer to produce ultrasonic wave by this signal, ultrasonic wave transmits along body surface, after encountering pollutant, contaminated thing scattering or absorption, the ultrasonic intensity arriving ultrasonic transducer changes, and ultrasonic transducer converts ultrasonic wave to the signal of telecommunication, when body surface pollution level is different, the electrical signal intensity produced is also different, determines whether cleaning and adopt what mode to clean according to this electrical signal intensity;
If do not need cleaning, just get back to step 1 and continue inspected object surface pollution degree;
If determine to clean, carry out step 2, whether inspected object surface has liquid, if do not have liquid, then make body surface cover upper liquid, producing frequency by ultrasonic drive is F2, intensity is the signal of telecommunication of A2, drives ultrasonic transducer to produce ultrasonic wave, cleans body surface;
In cleaning or after cleaning terminates, adopt the ultrasonic wave of ultrasonic transducer receiving surface, after the signal strength signal intensity exported when ultrasonic transducer reaches preset value, represent that object cleans up, stop cleaning, come back to step 1, inspected object surface pollution degree;
Described ultrasonic transducer has one at least; In order to reduce costs, wherein specific ultrasonic transducer can be used for producing ultrasonic wave in portion of time, be used in another part time receiving ultrasonic wave, when there being the ultrasonic wave of multiple different frequency, specific ultrasonic transducer can receive simultaneously and launch ultrasonic wave;
In order to reduce costs, F1 can be made to equal F2;
The invention has the beneficial effects as follows: by such scheme, detection technique and cleaning technique are combined, cleans according to surface pollution degree, can ensure, under clean prerequisite, to reduce wash number, avoid excessive cleaning, and extend service life; Owing to all having used ultrasonic technology in detection and cleaning, can simplified design, reduce costs.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the embodiment of the present invention one.
Fig. 2 is the schematic diagram of embodiments of the invention two.
Fig. 3 is the schematic diagram of embodiments of the invention three.
In figure: 1. ultrasonic transducer, 2. by the surface cleaned, 3. delivery port and air outlet, 4. solid baffle.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is an embodiment, in the present embodiment, surface to be cleaned is a square, this square is vertically placed, four ultrasonic transducers are positioned at corner, delivery port is directly over surface to be cleaned, the ultrasonic transducer being positioned at the upper left corner sends the ultrasonic wave that frequency is F1, form surface acoustic wave, surface acoustic wave is propagated along surface, received by other three ultrasonic transducers, other three ultrasonic transducers are composite transducers, they can receive frequency be the surface acoustic wave of F1, also the ultrasonic wave that frequency is F2 can be sent, after body surface is contaminated, the intensity of the surface acoustic wave obtained can change, the intensity of the signal of telecommunication of three ultrasonic transducer outputs also can change, when this intensity drops to after below threshold value, open delivery port, body surface is made to become moistening, start ultrasonic transducer and send the ultrasonic wave that frequency is F2, body surface is cleaned.After cleaning a period of time, stop cleaning, blow out wind by air outlet, dispose the liquid on surface, again detect with the ultrasonic wave that frequency is F1.
Because the front-to-back ratio of surface acoustic wave is better, after pollutant position changes, the surface acoustic wave intensity that the ultrasonic transducer of three receptions obtains can change, the surface acoustic wave Strength Changes obtained from the ultrasonic transducer that pollutant is nearest is the most obvious, in cleaning process, in order to reach good cleaning performance, the power that this ultrasonic transducer is exported is maximum.
In this example, F1 is 304.25MHZ, F2 is 40KHZ.
Fig. 2 is second embodiment, in the present embodiment, surface to be cleaned is vertically placed, left side is a solid baffle, row's ultrasonic transducer is pasted on right side, delivery port and air outlet are directly over surface to be cleaned, ultrasonic transducer is composite transducer, can send with receive frequency is the surface acoustic wave of F1, also can receive frequency be the ultrasonic wave of F2, ultrasonic transducer sends the surface acoustic wave that frequency is F1, surface acoustic wave is propagated along body surface, acoustic surface wave propagation is reflected back to baffle plate rear portion, the surface acoustic wave reflected is received by ultrasonic transducer adjacent separately, when body surface is subject to polluting, the surface acoustic wave intensity that ultrasonic transducer receives can change, the electrical signal intensity that ultrasonic transducer exports also can change thereupon, after this intensity drops to preset value, open delivery port, body surface is made to become moistening, making ultrasonic transducer send frequency is that the ultrasonic wave of F2 cleans body surface.After cleaning a period of time, stop cleaning, dried by blowing mouth, the liquid of purge surface, detects with the surface acoustic wave that frequency is F1 again.
Fig. 3 is the 3rd embodiment, in the present embodiment, surface to be cleaned is the inner surface of fish jar, this fish jar is cube, two row's ultrasonic transducers are placed on the surperficial both sides of fish jar one, the operating frequency of portion of ultrasonic sound wave transducer is F1, the operating frequency of another part is F2, one row's ultrasonic transducer sends surface acoustic wave, surface acoustic wave is propagated along surface and is received by the ultrasonic transducer of another row, after surface is polluted, the intensity of the surface acoustic wave that ultrasonic transducer receives can change, the electrical signal intensity that ultrasonic wave exports also can change, after this intensity drops to preset value, driving ultrasonic transducer to send frequency is that the ultrasonic wave effects on surface of F2 cleans, now in system, existing frequency is that F1 also has frequency to be the ultrasonic wave of F2, after cleaning a period of time, stop frequency is the ultrasonic wave of F2, frequency is only had to be that the surface acoustic wave of F1 detects.
In above embodiment, only when surface pollution degree is very large, adopt powerful Ultrasonic Cleaning, ultrasonic power in most cases for cleaning and detecting is all lower, so can economize energy, when timely clean surface dirt, avoid excessive cleaning, reduce the destruction of cavitation effect effects on surface.
The present invention can make some amendments under the premise of without departing from the spirit of the present invention by those skilled in the art, but the amendment done is still within the protection domain of the claim of the application.
Claims (2)
1. utilize ultrasound examination surface pollution degree and a method for cleaning, it is characterized in that:
Select ultrasonic transducer, ultrasonic transducer can convert the signal of telecommunication of input to mechanical oscillation, thus produces ultrasonic wave, also can receive ultrasonic wave, convert ultrasonic wave to the signal of telecommunication, export to follow-up circuit;
Step 1, detects the pollution level on surface; It is F1 that ultrasonic drive produces frequency, intensity is the signal of telecommunication of A1, drive ultrasonic transducer to produce ultrasonic wave by this signal, ultrasonic wave transmits along body surface, after encountering pollutant, contaminated thing scattering or absorption, the ultrasonic intensity arriving ultrasonic transducer changes, and ultrasonic transducer converts ultrasonic wave to the signal of telecommunication, when body surface pollution level is different, the electrical signal intensity produced is also different, determines whether cleaning and adopt what mode to clean according to this electrical signal intensity;
If do not need cleaning, just get back to step 1 and continue inspected object surface pollution degree;
If determine to clean, carry out step 2, whether inspected object surface has liquid, if do not have liquid, then make body surface cover upper liquid, producing frequency by ultrasonic drive is F2, intensity is the signal of telecommunication of A2, drives ultrasonic transducer to produce ultrasonic wave, cleans body surface;
In cleaning or after cleaning terminates, adopt the ultrasonic wave of ultrasonic transducer receiving surface, after the signal strength signal intensity exported when ultrasonic transducer reaches preset value, represent that object cleans up, stop cleaning, come back to step 1, inspected object surface pollution degree.
2. a kind of method utilizing ultrasound examination surface pollution degree also to clean according to claim 1, is characterized in that: described ultrasonic transducer has one at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310111753.5A CN103191886B (en) | 2013-03-21 | 2013-03-21 | Method for detecting surface pollution degree through ultrasonic wave and cleaning pollution |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310111753.5A CN103191886B (en) | 2013-03-21 | 2013-03-21 | Method for detecting surface pollution degree through ultrasonic wave and cleaning pollution |
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| Publication Number | Publication Date |
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| CN103191886A CN103191886A (en) | 2013-07-10 |
| CN103191886B true CN103191886B (en) | 2015-04-08 |
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| CN201310111753.5A Expired - Fee Related CN103191886B (en) | 2013-03-21 | 2013-03-21 | Method for detecting surface pollution degree through ultrasonic wave and cleaning pollution |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2518136B (en) | 2013-07-22 | 2016-09-14 | Echovista Gmbh | Ultrasonically clearing precipitation |
| US10695805B2 (en) * | 2017-02-03 | 2020-06-30 | Texas Instruments Incorporated | Control system for a sensor assembly |
| US10663418B2 (en) | 2017-02-03 | 2020-05-26 | Texas Instruments Incorporated | Transducer temperature sensing |
| US11420238B2 (en) | 2017-02-27 | 2022-08-23 | Texas Instruments Incorporated | Transducer-induced heating-facilitated cleaning |
| US11607704B2 (en) | 2017-04-20 | 2023-03-21 | Texas Instruments Incorporated | Methods and apparatus for electrostatic control of expelled material for lens cleaners |
| US10908414B2 (en) | 2017-05-10 | 2021-02-02 | Texas Instruments Incorporated | Lens cleaning via electrowetting |
| CN107764705B (en) * | 2017-09-28 | 2020-06-16 | 珠海格力电器股份有限公司 | Water purifier and cleanliness detection method, device and system thereof |
| CN107719598A (en) * | 2017-10-06 | 2018-02-23 | 中国水利水电科学研究院 | A kind of marine ship hull bottom cleaning robot |
| CN109341608A (en) * | 2018-11-24 | 2019-02-15 | 芜湖真玛信息科技有限公司 | A method of utilizing ultrasound examination rough object surfaces degree |
| CN110887080A (en) * | 2019-11-12 | 2020-03-17 | 华帝股份有限公司 | Self-cleaning control method and range hood |
| CN114558841A (en) * | 2022-02-18 | 2022-05-31 | 武汉理工大学 | Ultrasonic removal system and method for butterfly valve aquatic organisms |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB1582434A (en) * | 1976-05-13 | 1981-01-07 | Secr Social Service Brit | Analytical apparatus and methods incorporating cuvette cleaning and cleanliness testing |
| GB0302519D0 (en) * | 2003-02-04 | 2003-03-05 | Trw Ltd | Improvements in fluid monitoring |
| JP4715236B2 (en) * | 2005-03-01 | 2011-07-06 | 株式会社デンソー | Ultrasonic sensor device |
| CN100495018C (en) * | 2005-10-31 | 2009-06-03 | 宝山钢铁股份有限公司 | Ultrasonic method and device for testing macroscopic cleanness of continuous casting billet |
| DE102009061087B3 (en) * | 2008-04-18 | 2012-06-14 | Denso Corporation | ultrasonic sensor |
| CN201724191U (en) * | 2010-07-17 | 2011-01-26 | 安徽师范大学 | LED lamp cleaner adopting sensor and singlechip and utilizing ultrasonic wave |
| JP5862328B2 (en) * | 2011-01-31 | 2016-02-16 | Ｊｆｅスチール株式会社 | Steel cleanliness evaluation method |
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Inventor after: Zhu Xiangbing Inventor after: Ma Shufang Inventor after: Wang Zhengqin Inventor after: Hao Wenliang Inventor after: Wu Changyi Inventor after: Wang Cheng Inventor after: Ma Xudong Inventor before: Zhu Xiangbing Inventor before: Ma Shufang Inventor before: Hao Wenliang Inventor before: Wu Changyi Inventor before: Wang Cheng Inventor before: Ma Xudong |
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Free format text: CORRECT: INVENTOR; FROM: ZHU XIANGBING MA SHUFANG HAO WENLIANG WU CHANGYI WANG CHENG MA XUDONG TO: ZHU XIANGBING MA SHUFANG WANG ZHENGQIN HAO WENLIANG WU CHANGYI WANG CHENG MA XUDONG |
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