CN102426038A - Ultrasonic flow sensor with high reliability - Google Patents
Ultrasonic flow sensor with high reliability Download PDFInfo
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- CN102426038A CN102426038A CN2011102708054A CN201110270805A CN102426038A CN 102426038 A CN102426038 A CN 102426038A CN 2011102708054 A CN2011102708054 A CN 2011102708054A CN 201110270805 A CN201110270805 A CN 201110270805A CN 102426038 A CN102426038 A CN 102426038A
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Abstract
The invention discloses an ultrasonic flow sensor with high reliability. The ultrasonic flow sensor comprises a tube section, wherein a transmitting transducer and a receiving transducer are arranged in the tube section and correspond to each other; two electrode plates are also arranged in the tube section and are respectively close to the transmitting transducer and the receiving transducer or respectively positioned inside the transmitting transducer and the receiving transducer; and the electrode plates are connected with a pressurized lead. When the flow sensor is in use, direct current voltage is only applied between the electrode plates and the tube section, so that electric fields are formed around the transmitting transducer and the receiving transducer; when metal cations move to the periphery of the transmitting transducer or the periphery of the receiving transducer, along fluid, the metal cations are acted by the electric fields to be away from the transmitting transducer or the receiving transducer, so that the metal cations are difficult to attach and deposit on the transmitting transducer or the receiving transducer, further the aim of preventing scaling is achieved and the service life of the ultrasonic sensor is prolonged.
Description
Technical field
The present invention relates to a kind of flow sensor, particularly a kind of ultrasonic flow sensor.
Background technology
In flow-meter, ultrasonic flow sensor is through the conversion between electric energy and acoustic energy, measures ultrasound wave is measured fluid flow in the mode of fluid following current and adverse current velocity contrast size through transducer.The transducer of present known ultrasonic flow sensor mainly is to adopt reflective structure; Promptly come reflection supersonic wave through a pair of reflector plate or duct wall between two transducers, transmitting transducer applies electric signal excitation ultrasound ripple through outer lead, and receiving transducer then converts ultrasound wave to specific electrical signal; Cooperate again and transmit and receive circuit accordingly; So just, can the fluid flow change-detection be come out, above-mentioned principle is a techniques well known, so be not described in detail at this.
Also there is certain shortcoming in above-mentioned ultrasonic flow sensor; At first fashionable in the water quality inferiority field when using; Transducer and reflecting surface are easy to fouling, often find in use for some time during application, and the measuring-signal decay is very big; Even can occur because signal is crossed weak and unmeasurable phenomenon, sensor is shorter serviceable life; Have, two transducers are reflective cooperation again, and sensor signal need be passed through intermediary and transmitted, so signal attenuation big relatively, receive a little less than the signal, and be easy to generate interference of reflected wave, and then influence the measuring accuracy of sensor.
The utility model content
To the deficiency of above-mentioned prior art, a kind of good antiscale property, measuring accuracy are high, the ultrasonic flow sensor of long service life but the purpose of this invention is to provide.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of high reliability ultrasonic flow transducer; Comprise a pipeline section; Be provided with a transmitting transducer and a receiving transducer in the said pipeline section; Said transmitting transducer is corresponding with said receiving transducer, and said transmitting transducer, receiving transducer are connected with signal lead respectively, also is provided with two battery lead plates in the said pipeline section; Said two battery lead plates are respectively near said transmitting transducer, receiving transducer or to lay respectively at said transmitting transducer, receiving transducer inner, said battery lead plate with add voltage lead wires and be connected.
Preferably, said transmitting transducer, receiving transducer adopt correlation to install.
Preferably, said transmitting transducer, receiving transducer are fixed in the said pipeline section through the location lid.
Preferably, said signal lead, add voltage lead wires and stretch out said pipeline section through a cable.
Technique scheme has following beneficial effect: this ultrasonic flow transducer is provided with two battery lead plates in pipeline section; Two battery lead plates respectively near transmitting transducer, receiving transducer or lay respectively at transmitting transducer, receiving transducer is inner; This flow sensor only needs between battery lead plate and pipeline section, to add DC voltage in use, so just can around transmitting transducer, receiving transducer, form electric field; This process is not because of forming not consumed power of current path; And when metal cation moves to transmitting transducer or receiving transducer with fluid around the time, just receive effect of electric field and away from transmitting transducer or receiving transducer, metal cation just is difficult to adhere to and deposit like this on transmitting transducer or receiving transducer; Thereby reach the purpose that prevents fouling, prolong the serviceable life of ultrasonic sensor.
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; This high reliability ultrasonic flow transducer comprises a pipeline section 1; Be provided with a transmitting transducer 3 and a receiving transducer 4 in the pipeline section 1, transmitting transducer 3 is corresponding with receiving transducer 4, and transmitting transducer 3, receiving transducer 4 cover 2 through the location and be fixed in the pipeline section 1.
Transmitting transducer 3, receiving transducer 4 are connected with signal lead respectively, and transmitting transducer 3, receiving transducer 4 adopts correlations to install, and promptly the signal that sends of transmitting transducer 3 directly is received transducer 4 and receives, and the centre need not other media and transmits.The transmitting transducer 3 of this ultrasonic flow sensor, receiving transducer 4 adopt correlation to install, and compare with the sensor of reflective structure, and the signal intensity of its reception is stronger, and can reduce the reflection noise jamming, makes the measuring accuracy of sensor higher.
Also be provided with 5, two battery lead plates 5 of two battery lead plates in the pipeline section 1 respectively near transmitting transducer 3 and receiving transducer 4, battery lead plate 5 with add voltage lead wires and be connected, above-mentioned signal lead, add voltage lead wires and stretch out pipeline section 1 through a cable 6.As an alternative embodiment of the invention, two battery lead plates 5 also can lay respectively at transmitting transducer 3, receiving transducer 4 inside respectively.
This ultrasonic flow sensor in use; Apply the square-wave signal of certain frequency for the signal lead of transmitting transducer 3, make its emission ultrasound wave, and the piezoelectric chip of receiving transducer 4 is exported electrical signal converted through corresponding a pair of signal lead; Simultaneously; Between the shell of battery lead plate 5 and meter spool piece 1, apply a direct current voltage, thereby around transmitting transducer 3, receiving transducer 4, form the electric field that points to shells from battery lead plate 4, the transducer that moves to sensor with fluid when metal cation like this is on every side the time; Just receive effect of electric field and away from transmitting transducer or receiving transducer; Metal cation just is difficult to adhere to and deposit on transmitting transducer or receiving transducer like this, thereby reaches the purpose that prevents fouling, prolongs the serviceable life of ultrasonic sensor.
More than a kind of high reliability ultrasonic flow transducer 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. high reliability ultrasonic flow transducer; Comprise a pipeline section; Be provided with a transmitting transducer and a receiving transducer in the said pipeline section; Said transmitting transducer is corresponding with said receiving transducer, and said transmitting transducer, receiving transducer are connected with signal lead respectively, it is characterized in that: also be provided with two battery lead plates in the said pipeline section; Said two battery lead plates are respectively near said transmitting transducer, receiving transducer or to lay respectively at said transmitting transducer, receiving transducer inner, said battery lead plate with add voltage lead wires and be connected.
2. high reliability ultrasonic flow transducer according to claim 1 is characterized in that: said transmitting transducer, receiving transducer adopt correlation to install.
3. high reliability ultrasonic flow transducer according to claim 1 is characterized in that: said transmitting transducer, receiving transducer are fixed in the said pipeline section through the location lid.
4. high reliability ultrasonic flow transducer according to claim 1 is characterized in that: said signal lead, add voltage lead wires and stretch out said pipeline section through a cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102708054A CN102426038A (en) | 2011-09-14 | 2011-09-14 | Ultrasonic flow sensor with high reliability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102708054A CN102426038A (en) | 2011-09-14 | 2011-09-14 | Ultrasonic flow sensor with high reliability |
Publications (1)
| Publication Number | Publication Date |
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| CN102426038A true CN102426038A (en) | 2012-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011102708054A Pending CN102426038A (en) | 2011-09-14 | 2011-09-14 | Ultrasonic flow sensor with high reliability |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383275A (en) * | 2012-05-03 | 2013-11-06 | 沈阳市航宇星仪表有限责任公司 | Square-wave runner ultrasonic water gauge |
| CN103389133A (en) * | 2013-07-26 | 2013-11-13 | 浙江理工大学 | High-response speed ultrasonic flowmeter |
| 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 |
| CN105606786A (en) * | 2014-11-14 | 2016-05-25 | Mems股份公司 | Method and measuring apparatus for determining specific quantities for gas quality |
| CN106382963A (en) * | 2015-07-26 | 2017-02-08 | 江苏中农物联网科技有限公司 | Ultrasonic wave flow sensor for aquaculture |
| CN106595785A (en) * | 2017-01-23 | 2017-04-26 | 青岛海威茨仪表有限公司 | Opposite type small-bore ultrasonic flowmeter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201173795Y (en) * | 2008-02-25 | 2008-12-31 | 天津市盛世九合科技发展有限公司 | Ultrasonic flow sensor with honeycomb duct |
| 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 |
| CN202229789U (en) * | 2011-09-14 | 2012-05-23 | 苏州聚元微电子有限公司 | Ultrasonic flow sensor with high reliability |
-
2011
- 2011-09-14 CN CN2011102708054A patent/CN102426038A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201173795Y (en) * | 2008-02-25 | 2008-12-31 | 天津市盛世九合科技发展有限公司 | Ultrasonic flow sensor with honeycomb duct |
| 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 |
| CN202229789U (en) * | 2011-09-14 | 2012-05-23 | 苏州聚元微电子有限公司 | Ultrasonic flow sensor with high reliability |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383275A (en) * | 2012-05-03 | 2013-11-06 | 沈阳市航宇星仪表有限责任公司 | Square-wave runner ultrasonic water gauge |
| CN103383275B (en) * | 2012-05-03 | 2016-03-09 | 沈阳市航宇星仪表有限责任公司 | Square-wave runner ultrasonic water gauge |
| CN103389133A (en) * | 2013-07-26 | 2013-11-13 | 浙江理工大学 | High-response speed ultrasonic flowmeter |
| 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 |
| CN105606786A (en) * | 2014-11-14 | 2016-05-25 | Mems股份公司 | Method and measuring apparatus for determining specific quantities for gas quality |
| CN105606786B (en) * | 2014-11-14 | 2019-12-24 | Mems股份公司 | Method and measuring device for determining a specific quantity of a gas quality |
| CN106382963A (en) * | 2015-07-26 | 2017-02-08 | 江苏中农物联网科技有限公司 | Ultrasonic wave flow sensor for aquaculture |
| CN106382963B (en) * | 2015-07-26 | 2023-08-08 | 江苏中农物联网科技有限公司 | Ultrasonic flow sensor for aquaculture |
| CN106595785A (en) * | 2017-01-23 | 2017-04-26 | 青岛海威茨仪表有限公司 | Opposite type small-bore ultrasonic flowmeter |
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Application publication date: 20120425 |