CN102435240A - Ultrasonic flowmeter transducer capable of preventing scaling - Google Patents
Ultrasonic flowmeter transducer capable of preventing scaling Download PDFInfo
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- CN102435240A CN102435240A CN2011102708270A CN201110270827A CN102435240A CN 102435240 A CN102435240 A CN 102435240A CN 2011102708270 A CN2011102708270 A CN 2011102708270A CN 201110270827 A CN201110270827 A CN 201110270827A CN 102435240 A CN102435240 A CN 102435240A
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Abstract
The invention discloses an ultrasonic flowmeter transducer capable of preventing scaling, which comprises a shell. A sound wedge and a piezoelectric chip are arranged in a cavity of the shell, the piezoelectric chip is appressed to the sound wedge, the piezoelectric chip and the sound wedge are glued in a cavity of the shell, two output electrodes are arranged on the piezoelectric chip and are connected with signal leads extending out of the shell, and an electrode plate is further arranged in the cavity of the shell, is bonded with the piezoelectric chip through sealing glue and is connected with a pressurized lead extending out of the shell. The ultrasonic flowmeter transducer can be used for preventing scaling on the transducer, and the service life of the transducer is further prolonged.
Description
Technical field
The present invention relates to the ultrasonic flow meter transducer, but especially a kind of ultrasonic flow meter transducer of good antiscale property.
Background technology
In flow-meter, the ultrasonic flow meter transducer is not only can be converted into electric energy acoustic energy, but also can be converted into acoustic energy the device or the device of electric energy, is used for the conversion of signals of measurement of fluid flow.Present known ultrasonic flow meter transducer; Mainly be that piezoelectric is encapsulated in the shell of specific size; Apply electric signal and the excitation ultrasound ripple through outer lead during emission; And can convert ultrasound wave to specific electrical signal when receiving, and cooperate and transmit and receive circuit accordingly, can the fluid flow change-detection be come out.
But often find when using; Fashionable when using in fields such as calorimeter and industrial water meters, the water quality of environment for use is widely different, conventional ultrasonic flow meter transducer easy scale formation; It is even more serious that particularly those adopt the situation of reflection sensor structure; In use for some time, receiving signal attenuation is very big, causes even crosses weak and unmeasurable result because of signal.
Summary of the invention
To the deficiency of above-mentioned prior art, the purpose of this invention is to provide a kind of ultrasonic flow meter transducer with good antiscale property function.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
But a kind of ultrasonic flow meter transducer of good antiscale property; Comprise a shell, be provided with wedge and piezoelectric chip in the cavity of said shell, said piezoelectric chip and the wedging of said sound are pasted; Said piezoelectric chip, sound wedge are adhesive in the cavity of said shell; Said piezoelectric chip is provided with two output electrodes, and said output electrode is connected with the signal lead that stretches out said shell, also is provided with a battery lead plate in the cavity of said shell; Said battery lead plate and said piezoelectric chip are through the sealing adhesion, and the voltage lead wires that adds that said battery lead plate and stretches out said shell is connected.
Preferably, said shell comprises a bonnet, and said bonnet and said battery lead plate are through the sealing adhesion.
Preferably, said battery lead plate is provided with a pressurization electrode, and the said voltage lead wires that adds is connected with said pressurization electrode.
Preferably, said signal lead, add voltage lead wires and concentrate with the enameled wire form and stretch out said shell through shielding line.
Technique scheme has following beneficial effect: be provided with a battery lead plate in this ultrasonic flow meter transducer; When work, can between the shell of battery lead plate and flowmeter, apply a direct current voltage; Between battery lead plate and flow-meter shell, will form electric field like this; This process is because of forming not consumed power of current path, in the time of when the metal cation in the fluid moves to transducer with fluid around, receives above-mentioned effect of electric field and can be difficult in away from transducer and adhere on the transducer and deposit; So just can prevent on transducer, to form fouling, and then prolong the serviceable life of transducer.
Above-mentioned explanation only is the general introduction of technical scheme of the present invention, understands technological means of the present invention in order can more to know, and can implement according to the content of instructions, below with preferred embodiment of the present invention and conjunction with figs. this patent is elaborated.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described in detail.
As shown in Figure 1; But the ultrasonic flow meter transducer of good antiscale property comprises a shell 1; Be provided with wedge 6, piezoelectric chip 2 and battery lead plate 4 in the cavity of shell 1, sound wedge 6 is positioned at the top of piezoelectric chip 2, and battery lead plate 4 is positioned at the below of piezoelectric chip 2; Piezoelectric chip 2 is close to sound wedge 6, and piezoelectric chip 2, sound wedge 6 are adhesive in the cavity of shell 1.Piezoelectric chip 2 is provided with two output electrodes, and output electrode is connected with signal lead, and battery lead plate 4 and piezoelectric chip 2 are through sealing 3 adhesions, and battery lead plate 4 is provided with a pressurization electrode, and pressurization electrode and adds voltage lead wires and is connected.Also be provided with a bonnet 5 on the shell 1, bonnet 5 and battery lead plate 4 are through the sealing adhesion.Above-mentioned signal lead, add voltage lead wires and concentrate with the enameled wire form and stretch out shell 1 through shielding line 7.
This ultrasonic flow meter transducer through the signal lead on the piezoelectric chip 2 that connects in the shielding line 7, applies the square-wave signal of certain frequency in use, can make its vertical direction emission ultrasound wave along piezoelectric chip 2; Otherwise when it receives ultrasound wave, piezoelectric chip 2 will be exported the sinusoidal wave electric signal of certain voltage.Simultaneously, for reaching the good antiscale property purpose, in shielding line 7, apply a direct current voltage between the shell that adds voltage lead wires and flowmeter of connection electrode plate 4, form the electric field that points between the flowmeter shell from battery lead plate 4, this process is not because of forming not consumed power of current path.Like this when metal cation moves to around the transducer with fluid, just receive effect of electric field and, therefore can not adhere to and deposit, thereby reach the purpose that prevents fouling away from transducer, and then the serviceable life of prolongation transducer.
More than but the ultrasonic flow of a kind of good antiscale property that the embodiment of the invention provided has been carried out detailed introduction; For one of ordinary skill in the art; According to the thought of the embodiment of the invention, the part that on embodiment and range of application, all can change, in sum; This description should not be construed as limitation of the present invention, and all any changes of making according to design philosophy of the present invention are all within protection scope of the present invention.
Claims (4)
1. but the ultrasonic flow meter transducer of a good antiscale property; Comprise a shell, be provided with wedge and piezoelectric chip in the cavity of said shell, said piezoelectric chip and the wedging of said sound are pasted; Said piezoelectric chip, sound wedge are adhesive in the cavity of said shell; Said piezoelectric chip is provided with two output electrodes, and said output electrode is connected with the signal lead that stretches out said shell, it is characterized in that: also be provided with a battery lead plate in the cavity of said shell; Said battery lead plate and said piezoelectric chip are through the sealing adhesion, and the voltage lead wires that adds that said battery lead plate and stretches out said shell is connected.
But 2. the ultrasonic flow meter transducer of good antiscale property according to claim 1, it is characterized in that: said shell comprises a bonnet, said bonnet and said battery lead plate are through the sealing adhesion.
3. but the ultrasonic flow meter transducer of good antiscale property according to claim 1 is characterized in that: said battery lead plate is provided with a pressurization electrode, and the said voltage lead wires that adds is connected with said pressurization electrode.
4. but the ultrasonic flow meter transducer of good antiscale property according to claim 1 is characterized in that: said signal lead, add voltage lead wires and concentrate with the enameled wire form and stretch out said shell through shielding line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102708270A CN102435240A (en) | 2011-09-14 | 2011-09-14 | Ultrasonic flowmeter transducer capable of preventing scaling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102708270A CN102435240A (en) | 2011-09-14 | 2011-09-14 | Ultrasonic flowmeter transducer capable of preventing scaling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102435240A true CN102435240A (en) | 2012-05-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102708270A Pending CN102435240A (en) | 2011-09-14 | 2011-09-14 | Ultrasonic flowmeter transducer capable of preventing scaling |
Country Status (1)
| Country | Link |
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| CN (1) | CN102435240A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034376A (en) * | 2014-06-27 | 2014-09-10 | 苏州东剑智能科技有限公司 | Anti-scale circuit used for ultrasonic flowmeter |
| CN109141552A (en) * | 2018-09-27 | 2019-01-04 | 麦克传感器股份有限公司 | Electromagnet flow meter sensor built-in electrode leaded packages |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1224838A (en) * | 1999-01-12 | 1999-08-04 | 核工业北京化工冶金研究院 | Surface scale preventing method for metal electrode |
| CN2441121Y (en) * | 2000-09-13 | 2001-08-01 | 大连经济技术开发区索尼卡电子有限公司 | Explosionproof probe of ultrasonic flow meter |
| CN101699742A (en) * | 2009-07-30 | 2010-04-28 | 北京国业世成科技发展有限公司 | Ultrasonic full-effect antiscaling, descaling, disinfecting, algae removing and deaerating device |
| CN202229788U (en) * | 2011-09-14 | 2012-05-23 | 苏州聚元微电子有限公司 | Anti-scaling ultrasonic flowmeter transducer |
-
2011
- 2011-09-14 CN CN2011102708270A patent/CN102435240A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1224838A (en) * | 1999-01-12 | 1999-08-04 | 核工业北京化工冶金研究院 | Surface scale preventing method for metal electrode |
| CN2441121Y (en) * | 2000-09-13 | 2001-08-01 | 大连经济技术开发区索尼卡电子有限公司 | Explosionproof probe of ultrasonic flow meter |
| CN101699742A (en) * | 2009-07-30 | 2010-04-28 | 北京国业世成科技发展有限公司 | Ultrasonic full-effect antiscaling, descaling, disinfecting, algae removing and deaerating device |
| CN202229788U (en) * | 2011-09-14 | 2012-05-23 | 苏州聚元微电子有限公司 | Anti-scaling ultrasonic flowmeter transducer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034376A (en) * | 2014-06-27 | 2014-09-10 | 苏州东剑智能科技有限公司 | Anti-scale circuit used for ultrasonic flowmeter |
| CN104034376B (en) * | 2014-06-27 | 2017-06-06 | 苏州东剑智能科技有限公司 | For the water resistant dirt circuit of ultrasonic flowmeter |
| CN109141552A (en) * | 2018-09-27 | 2019-01-04 | 麦克传感器股份有限公司 | Electromagnet flow meter sensor built-in electrode leaded packages |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120502 |