CN109248888A - A kind of excitation electric cleaning device of sweep-frequency Békésy audiometer quartz crystal - Google Patents
A kind of excitation electric cleaning device of sweep-frequency Békésy audiometer quartz crystal Download PDFInfo
- Publication number
- CN109248888A CN109248888A CN201811260297.XA CN201811260297A CN109248888A CN 109248888 A CN109248888 A CN 109248888A CN 201811260297 A CN201811260297 A CN 201811260297A CN 109248888 A CN109248888 A CN 109248888A
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- Prior art keywords
- quartz crystal
- sweep
- cleaning device
- frequency
- electric cleaning
- 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
- 239000013078 crystal Substances 0.000 title claims abstract description 67
- 239000010453 quartz Substances 0.000 title claims abstract description 66
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 238000004140 cleaning Methods 0.000 title claims abstract description 55
- 230000005284 excitation Effects 0.000 title claims abstract description 54
- 238000009434 installation Methods 0.000 claims abstract description 7
- 230000005611 electricity Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 5
- 239000003344 environmental pollutant Substances 0.000 abstract description 13
- 231100000719 pollutant Toxicity 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 2
- 230000009102 absorption Effects 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 6
- 239000000428 dust Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 208000001840 Dandruff Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/04—Cleaning by suction, with or without auxiliary action
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses the inside of a kind of excitation electric cleaning device of sweep-frequency Békésy audiometer quartz crystal, the excitation electric cleaning device main body including sweep-frequency Békésy audiometer quartz crystal, the excitation electric cleaning device main body of the sweep-frequency Békésy audiometer quartz crystal to offer installation cavity.The present invention passes through setting touching manipulation display screen, the frequency for wanting output is adjusted, signal is passed to processor by circuit board by touching manipulation display screen, processor handles signal, pass to DDS digital synthesizer, DDS digital synthesizer generates various frequency signals by the instruction of board receiver processor, wideband power amplifer amplifies the frequency that DDS digital synthesizer generates, generate high power excitation signal, signal is passed into output impedance match circuit, power signal for being loaded into the quartz crystal motivated by the setting of output impedance match circuit, complete incentive functions, achieve the effect that carry out reliable excitation cleaning to strand DNA on Surface of Quartz crystal pollutant within the scope of frequency.
Description
Technical field
The present invention relates to quartz crystal cleaning engineering device technique field, the excitation electricity of specially a kind of sweep-frequency Békésy audiometer quartz crystal is clear
Cleaning device.
Background technique
The processing environment requirement of quartz-crystal resonator is very cleaned, is clean.Therefore the process of quartz crystal, substantially
It is all to be completed in ten thousand grades of cleaning shops, or even thousand grades of part purifies.The quartz of contaminated object (such as dust, dandruff) pollution
The quartz-crystal resonator that chip is process influences frequency stability, while influencing exciting power correlation metric (DLD).
However, also inevitably having pollution dead angle even if dust-free workshop cleanliness is clean again.Therefore, by the quartz wafer of light contamination,
It before not covering, needs to enhance pollutant removal the stability of product, promotes producing line qualification rate.But mostly make on the market
Excitation with feedback examination oscillation circuit to quartz-crystal, driving frequency range is relatively narrow, can not accomplish the reliable excitation in wide frequency range,
To be difficult to handle the pollutant of strand DNA on Surface of Quartz crystal attachment, need to improve.
Summary of the invention
The purpose of the present invention is to provide a kind of excitation electric cleaning devices of sweep-frequency Békésy audiometer quartz crystal, have wide frequency range
Interior the advantages of reliably being motivated to quartz crystal, solving mostly is using feedback examination oscillation circuit on the market to quartz crystal
Excitation, driving frequency range is relatively narrow, can not accomplish the reliable excitation in wide frequency range, to be difficult to handle strand DNA on Surface of Quartz crystal
The problem of pollutant of attachment.
To achieve the above object, the invention provides the following technical scheme: a kind of excitation electricity of sweep-frequency Békésy audiometer quartz crystal cleans
The excitation electricity of device, the excitation electric cleaning device main body including sweep-frequency Békésy audiometer quartz crystal, the sweep-frequency Békésy audiometer quartz crystal cleans dress
The inside for setting main body offers installation cavity, and the inside of the excitation electric cleaning device main body of the sweep-frequency Békésy audiometer quartz crystal passes through installation
Chamber is fixedly connected with circuit board.
Processor, the excitation electric cleaning device master of the sweep-frequency Békésy audiometer quartz crystal are fixedly connected at the top of the circuit board
The side of body is fixedly connected with touching manipulation display screen, the output end of the touching manipulation display screen and the output end electricity of circuit board
Property connection, be fixedly connected with DDS digital synthesizer at the top of the circuit board, the DDS digital synthesizer by circuit board with
The excitation electric cleaning device main body of sweep-frequency Békésy audiometer quartz crystal is electrically connected, and the output end of the circuit board is electrically connected with broadband function
Rate amplifier, one end in the excitation electric cleaning device main body of the sweep-frequency Békésy audiometer quartz crystal far from touching manipulation display screen open up
It is fluted, be fixedly connected with output impedance match circuit at the top of the groove inner wall, the output impedance match circuit it is defeated
The output end for entering end and wideband power amplifer is electrically connected, and is fixedly connected with fixed plate at the top of the groove inner wall, described
The inside of fixed plate offers storage chamber, and one end far from touching manipulation display screen offers cleaning through-hole in the fixed plate,
The cleaning through-hole is communicated with fixed plate, and the inner wall of the fixed plate is fixedly connected with sealing cover by clearing up through-hole, described solid
The inner wall of fixed board offers absorption through-hole by storage chamber, and the inner wall of the fixed plate is fixedly connected with unidirectionally by drawing through-hole
Air valve and suction fan.
Preferably, the quantity of the output impedance match circuit and fixed plate is no less than two, and output impedance matching electricity
Road and fixed plate are distributed in the top of the excitation electric cleaning device main body upper groove inner wall of sweep-frequency Békésy audiometer quartz crystal.
Preferably, the quantity for drawing through-hole is no less than seven, and seven are drawn the bottom that through-hole is evenly distributed on fixed plate
Portion.
Preferably, the bottom of the excitation electric cleaning device main body upper groove inner wall of the sweep-frequency Békésy audiometer quartz crystal is equipped with biography
Send band.
Preferably, the bottom of the excitation electric cleaning device main body of the sweep-frequency Békésy audiometer quartz crystal is fixedly connected with brake wheel.
Compared with prior art, beneficial effects of the present invention are as follows:
The present invention is adjusted by the way that touching manipulation display screen is arranged by the operation interface on touching manipulation display screen
Want the frequency of output, signal is passed to processor by circuit board by touching manipulation display screen, processor to signal at
Reason, passes to DDS digital synthesizer, and DDS digital synthesizer generates various frequency letters by the instruction of board receiver processor
Number, wideband power amplifer amplifies the frequency that DDS digital synthesizer generates, and generates high power excitation signal, signal is passed to
Output impedance match circuit, power signal for being loaded into the quartz crystal motivated by the setting of output impedance match circuit
On, incentive functions are completed, suction fan is started, suction fan rotation generates the pollution after air motion is motivated quartz crystal
Object, which is drawn to, to be drawn in through-hole, and pollutant is then passed through Non-return air valve and enters in storage chamber, completes to pollutant on quartz crystal
Cleaning has achieved the effect that carry out reliable excitation cleaning to strand DNA on Surface of Quartz crystal pollutant within the scope of frequency.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of front view of the present invention；
Fig. 2 is the bottom view of output impedance match circuit and fixed plate of the present invention；
Fig. 3 is the schematic cross-sectional view of fixed plate front view of the present invention；
Fig. 4 is the side view of output impedance match circuit and fixed plate of the present invention；
Fig. 5 is circuit diagram of the invention.
In figure: the excitation electric cleaning device main body of 1- sweep-frequency Békésy audiometer quartz crystal, 2- circuit board, 3- processor, 4- touch behaviour
Control display screen, 5-DDS digital synthesizer, 6- wideband power amplifer, 7- output impedance match circuit, 8- fixed plate, 9- storage
Chamber, 10- sealing cover, 11- draw through-hole, 12- Non-return air valve, 13- suction fan, 14- brake wheel.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1 to Fig. 2 is please referred to, the present invention provides a kind of technical solution: a kind of excitation electricity cleaning of sweep-frequency Békésy audiometer quartz crystal
Device, the excitation electric cleaning device main body 1 including sweep-frequency Békésy audiometer quartz crystal, the excitation electric cleaning device master of sweep-frequency Békésy audiometer quartz crystal
The bottom of body 1 is fixedly connected with brake wheel 14, excitation of the setting of brake wheel 14 for easily mobile sweep-frequency Békésy audiometer quartz crystal
The inside of electric cleaning device main body 1, the excitation electric cleaning device main body 1 of sweep-frequency Békésy audiometer quartz crystal offers installation cavity, sweep-frequency Békésy audiometer
The inside of the excitation electric cleaning device main body 1 of quartz crystal is fixedly connected with circuit board 2 by installation cavity, and circuit board 2 is used for will
Circuit board 2, processor 3, touching manipulation display screen 4 and DDS digital synthesizer 5 are electrically connected.
Fig. 1 to Fig. 5 is please referred to, the top of circuit board 2 is fixedly connected with processor 3, and processor 3 is received by circuit board 2
The instruction that touching manipulation display screen 4 transmits passes to DDS digital synthesizer 5 by circuit board 2 by processing that will instruct, sweeps
The side of the excitation electric cleaning device main body 1 of frequency formula quartz crystal is fixedly connected with touching manipulation display screen 4, and touching manipulation is shown
The setting of screen 4 is for exporting desired Frequency point, touching manipulation display screen 4 convenient for users to adjusting output impedance match circuit 7
Output end and circuit board 2 output end be electrically connected, the top of circuit board 2 is fixedly connected with DDS digital synthesizer 5, DDS number
The setting of word synthesizer 5 generates various frequency signals, DDS digital synthesizer for receiving the instruction of processor 3 by circuit board 2
5 are electrically connected by the excitation electric cleaning device main body 1 of circuit board 2 and sweep-frequency Békésy audiometer quartz crystal, and the output end of circuit board 2 is electrical
It is connected with wideband power amplifer 6, wideband power amplifer 6 is used to amplify the frequency of the generation of DDS digital synthesizer 5, generates high
Powered energizing signal, one end in the excitation electric cleaning device main body 1 of sweep-frequency Békésy audiometer quartz crystal far from touching manipulation display screen 4 are opened
Equipped with groove, the bottom of the 1 upper groove inner wall of excitation electric cleaning device main body of sweep-frequency Békésy audiometer quartz crystal is equipped with conveyer belt, transmission
Excitation electric cleaning device main body 1 of the setting of band for the sweep-frequency Békésy audiometer quartz crystal of the transmission by quartz crystal successively, in groove
Output impedance match circuit 7 is fixedly connected at the top of wall, the setting of output impedance match circuit 7 is for loading power signal
To the quartz crystal motivated, incentive functions, input terminal and the wideband power amplifer 6 of output impedance match circuit 7 are completed
Output end is electrically connected, and is fixedly connected with fixed plate 8, the number of output impedance match circuit 7 and fixed plate 8 at the top of groove inner wall
Amount no less than two, and output impedance match circuit 7 and fixed plate 8 are distributed in the excitation electricity cleaning of sweep-frequency Békésy audiometer quartz crystal
The top of 1 upper groove inner wall of apparatus main body, output impedance match circuit 7 and the fixed plate 8 for being no less than two by the way that quantity is arranged,
Multiple cleaning is carried out to quartz crystal, the inside of fixed plate 8 offers storage chamber 9, and storage chamber 9 is used to place the dust absorbed,
One end in fixed plate 8 far from touching manipulation display screen 4 offers cleaning through-hole, and cleaning through-hole is communicated with fixed plate 8, fixed plate
8 inner wall is fixedly connected with sealing cover 10 by clearing up through-hole, opens the storage chamber 9 in fixed plate 8 by sealing cover 10, carries out
Dust and pollutant therein are cleared up, the inner wall of fixed plate 8 is offered by storage chamber 9 draws through-hole 11, draws through-hole 11
Quantity is no less than seven, and seven are drawn the bottom that through-hole 11 is evenly distributed on fixed plate 8, passes through no less than seven absorptions of setting
Through-hole 11, so that seven groups of Non-return air valves 12 of setting and suction fan 13, improve the absorption to pollutant, the inner wall of fixed plate 8 is logical
It crosses absorption through-hole 11 and is fixedly connected with Non-return air valve 12 and suction fan 13, Non-return air valve 12 is unidirectional for pass through dust can only
Air valve 12 enters in storage chamber 9, Non-return air valve 12 cannot be passed through from storage chamber 9, the rotation of suction fan 13 generates air motion will
Pollutant after quartz crystal is motivated is drawn in absorption through-hole 11, is then passed through Non-return air valve 12 and is entered in storage chamber 9.
Working principle: the excitation electric cleaning device of this kind of sweep-frequency Békésy audiometer quartz crystal is in use, aobvious by touching manipulation first
Operation interface in display screen 4, is adjusted the frequency for wanting output, and touching manipulation display screen 4 transmits signal by circuit board 2
To processor 3, processor 3 handles signal, passes to DDS digital synthesizer 5, and DDS digital synthesizer 5 passes through circuit board
2 instructions for receiving processor 3 generate various frequency signals, and wideband power amplifer 6 amplifies the frequency that DDS digital synthesizer 5 generates
Rate generates high power excitation signal, signal is passed to output impedance match circuit 7, the setting of output impedance match circuit 7 is used
It is loaded on the quartz crystal motivated in by power signal, completion incentive functions, starting suction fan 13,13 turns of suction fan
Pollutant after the raw air motion of movable property is motivated quartz crystal is drawn in absorption through-hole 11, and pollutant is then passed through unidirectional gas
Valve 12 enters in storage chamber 9, completes the cleaning to pollutant on quartz crystal.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of excitation electric cleaning device of sweep-frequency Békésy audiometer quartz crystal, the excitation electric cleaning device master including sweep-frequency Békésy audiometer quartz crystal
Body (1), it is characterised in that: the inside of the excitation electric cleaning device main body (1) of the sweep-frequency Békésy audiometer quartz crystal offers installation cavity,
The inside of the excitation electric cleaning device main body (1) of the sweep-frequency Békésy audiometer quartz crystal is fixedly connected with circuit board (2) by installation cavity；
It is fixedly connected with processor (3) at the top of the circuit board (2), the excitation electric cleaning device of the sweep-frequency Békésy audiometer quartz crystal
The side of main body (1) is fixedly connected with touching manipulation display screen (4), the output end and circuit of the touching manipulation display screen (4)
The output end of plate (2) is electrically connected, and is fixedly connected with DDS digital synthesizer (5) at the top of the circuit board (2), the DDS number
Word synthesizer (5) is electrically connected by the excitation electric cleaning device main body (1) of circuit board (2) and sweep-frequency Békésy audiometer quartz crystal, described
The output end of circuit board (2) is electrically connected with wideband power amplifer (6), and the excitation electricity of the sweep-frequency Békésy audiometer quartz crystal cleans dress
It sets one end on main body (1) far from touching manipulation display screen (4) and opens up fluted, be fixedly connected at the top of the groove inner wall
Output impedance match circuit (7), the input terminal of the output impedance match circuit (7) and the output of wideband power amplifer (6)
End is electrically connected, and is fixedly connected with fixed plate (8) at the top of the groove inner wall, the inside of the fixed plate (8) offers storage
It deposits chamber (9), one end on the fixed plate (8) far from touching manipulation display screen (4) offers cleaning through-hole, the cleaning through-hole
It is communicated with fixed plate (8), the inner wall of the fixed plate (8) is fixedly connected with sealing cover (10), the fixation by clearing up through-hole
The inner wall of plate (8) is offered by storage chamber (9) and draws through-hole (11), and the inner wall of the fixed plate (8) is by drawing through-hole
(11) Non-return air valve (12) and suction fan (13) are fixedly connected with.
2. a kind of excitation electric cleaning device of sweep-frequency Békésy audiometer quartz crystal according to claim 1, it is characterised in that: described defeated
The quantity of impedance matching circuit (7) and fixed plate (8) is no less than two, and output impedance match circuit (7) and fixed plate (8) out
It is distributed in the top of excitation electric cleaning device main body (1) upper groove inner wall of sweep-frequency Békésy audiometer quartz crystal.
3. a kind of excitation electric cleaning device of sweep-frequency Békésy audiometer quartz crystal according to claim 1, it is characterised in that: the suction
The quantity of through-hole (11) is taken to be no less than seven, seven are drawn the bottom that through-hole (11) are evenly distributed on fixed plate (8).
4. a kind of excitation electric cleaning device of sweep-frequency Békésy audiometer quartz crystal according to claim 1, it is characterised in that: described to sweep
The bottom of excitation electric cleaning device main body (1) upper groove inner wall of frequency formula quartz crystal is equipped with conveyer belt.
5. a kind of excitation electric cleaning device of sweep-frequency Békésy audiometer quartz crystal according to claim 1, it is characterised in that: described to sweep
The bottom of the excitation electric cleaning device main body (1) of frequency formula quartz crystal is fixedly connected with brake wheel (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811260297.XA CN109248888B (en) | 2018-10-26 | 2018-10-26 | Excitation electric cleaning device for sweep-frequency quartz crystal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811260297.XA CN109248888B (en) | 2018-10-26 | 2018-10-26 | Excitation electric cleaning device for sweep-frequency quartz crystal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109248888A true CN109248888A (en) | 2019-01-22 |
| CN109248888B CN109248888B (en) | 2024-06-21 |
Family
ID=65046284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811260297.XA Active CN109248888B (en) | 2018-10-26 | 2018-10-26 | Excitation electric cleaning device for sweep-frequency quartz crystal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109248888B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114769225A (en) * | 2022-04-14 | 2022-07-22 | 金华市创捷电子有限公司 | Sweep-frequency type electric cleaning process and sweep-frequency type electric cleaning device |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1672819A (en) * | 2004-03-22 | 2005-09-28 | 广州日山电子科技有限公司 | Electric crystal cleaner |
| US20070040624A1 (en) * | 2003-04-17 | 2007-02-22 | Ostanin Victor P | Crystal oscillator |
| CN201862595U (en) * | 2010-11-15 | 2011-06-15 | 中材高新材料股份有限公司 | Big-size ceramic crucible post-processing equipment |
| CN201900112U (en) * | 2010-12-04 | 2011-07-20 | 铜陵嘉禾电子科技有限公司 | Electric cleaning device of crystal resonator |
| CN102397838A (en) * | 2011-10-27 | 2012-04-04 | 北京七星华创电子股份有限公司 | Random phase-shifting hybridfrequency type piezoelectric vibrator combination mega soundwave transducer device |
| CN203025263U (en) * | 2012-12-07 | 2013-06-26 | 宁波大学 | Portable amplitude-frequency characteristic tester |
| CN203540998U (en) * | 2013-10-08 | 2014-04-16 | 珠海东精大电子科技有限公司 | Electric cleaning mechanism and electric cleaning machine for quartz crystals |
| CN103877903A (en) * | 2014-03-14 | 2014-06-25 | 西安交通大学 | Ultrasonic dissolution accelerator as well as method and application of ultrasonic dissolution accelerator for accelerating drug dissolution |
| CN104481519A (en) * | 2014-09-25 | 2015-04-01 | 华中科技大学 | Cross-well electromagnetic well logging signal emission electronic system |
| CN206132970U (en) * | 2016-06-30 | 2017-04-26 | 国网重庆市电力公司电力科学研究院 | Ultrasonic wave partial discharge measurement system under site environment |
| CN107126639A (en) * | 2017-06-27 | 2017-09-05 | 哈尔滨工业大学深圳研究生院 | High-frequency high-precision ultrasound physiotherapy generator |
| CN209006308U (en) * | 2018-10-26 | 2019-06-21 | 河源市星通时频电子有限公司 | A kind of excitation electric cleaning device of sweep-frequency Békésy audiometer quartz crystal |
-
2018
- 2018-10-26 CN CN201811260297.XA patent/CN109248888B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070040624A1 (en) * | 2003-04-17 | 2007-02-22 | Ostanin Victor P | Crystal oscillator |
| CN1672819A (en) * | 2004-03-22 | 2005-09-28 | 广州日山电子科技有限公司 | Electric crystal cleaner |
| CN201862595U (en) * | 2010-11-15 | 2011-06-15 | 中材高新材料股份有限公司 | Big-size ceramic crucible post-processing equipment |
| CN201900112U (en) * | 2010-12-04 | 2011-07-20 | 铜陵嘉禾电子科技有限公司 | Electric cleaning device of crystal resonator |
| CN102397838A (en) * | 2011-10-27 | 2012-04-04 | 北京七星华创电子股份有限公司 | Random phase-shifting hybridfrequency type piezoelectric vibrator combination mega soundwave transducer device |
| CN203025263U (en) * | 2012-12-07 | 2013-06-26 | 宁波大学 | Portable amplitude-frequency characteristic tester |
| CN203540998U (en) * | 2013-10-08 | 2014-04-16 | 珠海东精大电子科技有限公司 | Electric cleaning mechanism and electric cleaning machine for quartz crystals |
| CN103877903A (en) * | 2014-03-14 | 2014-06-25 | 西安交通大学 | Ultrasonic dissolution accelerator as well as method and application of ultrasonic dissolution accelerator for accelerating drug dissolution |
| CN104481519A (en) * | 2014-09-25 | 2015-04-01 | 华中科技大学 | Cross-well electromagnetic well logging signal emission electronic system |
| CN206132970U (en) * | 2016-06-30 | 2017-04-26 | 国网重庆市电力公司电力科学研究院 | Ultrasonic wave partial discharge measurement system under site environment |
| CN107126639A (en) * | 2017-06-27 | 2017-09-05 | 哈尔滨工业大学深圳研究生院 | High-frequency high-precision ultrasound physiotherapy generator |
| CN209006308U (en) * | 2018-10-26 | 2019-06-21 | 河源市星通时频电子有限公司 | A kind of excitation electric cleaning device of sweep-frequency Békésy audiometer quartz crystal |
Non-Patent Citations (1)
| Title |
|---|
| 王康年: "《高频电子线路》", 西安：西安电子科技大学出版社, pages: 241 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114769225A (en) * | 2022-04-14 | 2022-07-22 | 金华市创捷电子有限公司 | Sweep-frequency type electric cleaning process and sweep-frequency type electric cleaning device |
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| Publication number | Publication date |
|---|---|
| CN109248888B (en) | 2024-06-21 |
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