CN103063275A - Device for testing comprehensive performance of ultrasonic water flow transducer and application method of device - Google Patents
Device for testing comprehensive performance of ultrasonic water flow transducer and application method of device Download PDFInfo
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- CN103063275A CN103063275A CN2012105735626A CN201210573562A CN103063275A CN 103063275 A CN103063275 A CN 103063275A CN 2012105735626 A CN2012105735626 A CN 2012105735626A CN 201210573562 A CN201210573562 A CN 201210573562A CN 103063275 A CN103063275 A CN 103063275A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000005259 measurement Methods 0.000 claims abstract description 45
- 230000007613 environmental effect Effects 0.000 claims abstract description 37
- 238000004088 simulation Methods 0.000 claims abstract description 33
- 239000012530 fluid Substances 0.000 claims description 21
- 238000009529 body temperature measurement Methods 0.000 claims description 7
- 230000032683 aging Effects 0.000 claims description 4
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- 238000011056 performance test Methods 0.000 abstract description 6
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Abstract
本发明公开了一种超声水流量换能器综合性能试验装置，包括封闭管路，封闭管路上设置有环境试验箱，封闭管路上还设置有水流实流模拟系统，环境试验箱内设置有环境模拟系统，换能器安装架，以及测量台架，待测换能器放置于换能器安装架的两端，环境试验箱外设置有换能器性能测量装置，换能器性能测量装置分别连接在两个待测换能器上。同时还公开了该装置的使用方法。与现有技术相比，本发明可以在实流状态下进行超声水流量换能器动静态特性综合性能试验，可使超声水流量换能器在没有装入传感器及仪表整机前就能识别其主要使用性能指标和预测其可靠性性，进一步提高水、热等超声计量仪表的性能指标、质量水平及生产效率。
The invention discloses a comprehensive performance test device for an ultrasonic water flow transducer, which comprises a closed pipeline, an environmental test chamber is arranged on the closed pipeline, a real flow simulation system of water flow is also arranged on the closed pipeline, and an environmental test chamber is arranged in the environmental test chamber. Simulation system, transducer mounting frame, and measuring bench. The transducer to be tested is placed at both ends of the transducer mounting frame. A transducer performance measurement device is installed outside the environmental test chamber. The transducer performance measurement device is Connected to the two transducers under test. At the same time, the method for using the device is also disclosed. Compared with the prior art, the present invention can carry out the comprehensive performance test of the dynamic and static characteristics of the ultrasonic water flow transducer in the real flow state, and can make the ultrasonic water flow transducer identify the It mainly uses performance indicators and predicts its reliability to further improve the performance indicators, quality level and production efficiency of ultrasonic measuring instruments such as water and heat.
Description
Technical field
The invention belongs to the technical field of the ultrasonic transducer of water meter, is a kind of ultrasonic discharge transducer comprehensive performance testing device and using method thereof concretely.
Background technology
Be the important measuring instrument of water supply and sewage metering, heat metering and industrial process measuring water flow based on measurement instruments such as the ultrasonic flowmeter of time difference method principle of work, Ultrasonic water meter, ultrasonic calorimeters, their common core parts are the ultrasonic transducers in the ultrasonic water flow sensor.Along with national energy-saving reduces discharging and issue and the enforcement of strict control policy of water resource, the importance of such measuring instrument grows with each passing day.The technical indicator of ultrasonic transducer mainly contain travel-time under the real stream condition, propagation time difference, work centre frequency, output amplitude with and the stability that works long hours, the environmental characteristicses such as weatherability, machinery etc.
For a long time, ultrasonic discharge transducer is owing to lack system under the real stream condition, effective performance test apparatus and method, make Performance Characteristics and the dependability of such transducer can not effectively be identified, estimate, screen and match, and can cause the Performance Characteristics of associated water stream amount measuring instrument and dependability to have certain uncertainty.Common practice only can be tested the local electrical performance indexes of transducer under non-real stream condition at present, or by testing the part of properties that indirectly obtains transducer to the real fluidity of instrument complete machine after installing, its result often causes not science, the non-system, unreliable of evaluation index and test method.
Summary of the invention
The present invention is directed to deficiency of the prior art, a kind of ultrasonic discharge transducer comprehensive performance testing device that carries out ultrasonic discharge transducer static and dynamic performance comprehensive performance test under real stream mode that has is provided, and its evaluation index and test method be science, system, reliable more.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals: a kind of ultrasonic discharge transducer comprehensive performance testing device, it is characterized in that: comprise closing pipe line, be provided with environmental test chamber on the described closing pipe line, also be provided with the real flow field simulation of current system on the described closing pipe line, be provided with environmental simulation system in the described environmental test chamber, the transducer erecting frame, and the measurement stand that is used for fixing described transducer erecting frame, transducer to be measured is positioned over the two ends of described transducer erecting frame, described environmental test chamber is outside equipped with the transducer performance measurement mechanism, and described transducer performance measurement mechanism is connected on two transducers to be measured.
Wherein, closing pipe line is used for bearing test with the circulating of aqueous fluid, and usually adopts the metal circular tube material that seals, and the outside is wrapped with insulation material; The real flow field simulation of current system is used for different flow and the temperature of simulation measured medium; The transducer performance measurement mechanism is used for affecting under parameter and the fluid condition effect in varying environment, measures property indices, environmental impact amount and the stability that works long hours of ultrasonic discharge transducer to be measured.
The present invention comes the working condition of emulation transducer under real fluid state and practical service environment condition by the real flow field simulation system of current and environmental simulation system, so that the present invention can carry out ultrasonic discharge transducer static and dynamic performance comprehensive performance test under real stream mode, can make ultrasonic discharge transducer before do not pack into sensor and instrument complete machine, just can identify its main using property data and its reliability of prediction, and will classify to transducer and mate by the key property index.Do like this performance index, quality level and the production efficiency of ultrasonic meter tables such as can further improve water, heat, set up more science, system, reliable evaluation index and test method.
As preferably, the real flow field simulation of above-mentioned current system comprises the aqueous fluid drive unit that is connected on the described closing pipe line, flow measurement device, flow stabilization apparatus, flow regulator, temperature measurement device.
Wherein, the power provide fluid to flow in pipeline is provided the aqueous fluid drive unit, usually by low noise small pump or other small pumps, connect hose, electrical control part etc. and form; Flow measurement device is used for measuring the flow of pipeline inner fluid, can adopt the flowmeter of all kinds of electricity outputs; Flow stabilization apparatus plays the effect of stablizing aqueous fluid flow in the pipeline, usually is comprised of gas-liquid pressure stabilizing mechanism etc.; Flow regulator plays the effect of regulating pipeline inner fluid flow, usually is comprised of electrically-controlled valve or hand control valve and electrical control part etc.; The temperature measurement device plays the effect of measuring the current actual temperature.
In order to obtain better technique effect, further technical measures also comprise: above-mentioned temperature measurement device is connected with water temperature and sets and control device, and described water temperature is set with control device and is connected with heat riser and the heat sink that is arranged in the described closing pipe line.
Water temperature is set with control device and is played the temperature of setting aqueous fluid in the closing pipe line and keep its constant effect.By water temperature in the artificial setting pipeline, set and make the temperature of aqueous fluid in the closing pipe line automatically remain on design temperature under control device cooperates in water temperature.Wherein, heat riser and heat sink are comprised of electric heater and semiconductor cooler etc. usually, and water temperature is set with control device while energy display setting temperature and shown actual water temperature in the pipeline.
Further improve: also be provided with vibration damping device on the above-mentioned aqueous fluid drive unit.The effect of vibration damping device is: when pump working, reduce the vibration effect of the devices such as convection cell and closing pipe line as far as possible, improve the reliability of measuring.
As preferably, above-mentioned environmental simulation system comprises temperature survey and display device, moisture measurement and display device, vibration survey and display device and time measurement and display device, described temperature survey and display device are connected with Temperature Setting and control device, described moisture measurement and display device are connected with humidity and set and control device, and described vibration survey and display device are connected with vibratory output and set and control device.
Wherein, above-mentioned environmental simulation system plays the effect of the simulation amounts of impact such as changing the interior temperature of environmental test casing, humidity, vibration.By the parameter values such as temperature, humidity, vibration frequency and amplitude in the artificial setting casing, and the test routine of these parameter values and ageing, be used for simulating reality or severe environmental conditions.Environmental simulation system can also show the parameter value of every setting, also can set and show the battery of tests program.
Further improve: the central axis of the central axis of above-mentioned measurement stand and described transducer erecting frame intersects, and both angles are 30
o～60
o
Further improve: on the above-mentioned transducer erecting frame transducer angular adjustment apparatus is installed.By the setting angle of angular adjustment apparatus adjusting transducer, be used for transducer directivity and measure.
The present invention also provides a kind of using method of above-mentioned ultrasonic discharge transducer comprehensive performance testing device simultaneously.
It is solved by following technical proposals: a kind of using method of ultrasonic discharge transducer comprehensive performance testing device described above, it is characterized in that: the two ends that two transducers to be measured are positioned over described transducer erecting frame, then regulate each analog parameter of the real flow field simulation of described current system and each analog parameter of described environmental simulation system and make it to reach testing requirements, start at last the transducer performance measurement mechanism measurement result is measured and exported to the transducer combination property.
The present invention also provides the using method of another kind of above-mentioned ultrasonic discharge transducer comprehensive performance testing device simultaneously.
It is solved by following technical proposals: a kind of using method of ultrasonic discharge transducer comprehensive performance testing device described above, it is characterized in that: the two ends that two transducers are positioned over described transducer erecting frame, one of them is transducer to be measured, another is stable performance, characteristic good after the installation, transducer through aging test, and it is used as the standard transducer, then regulate each analog parameter of the real flow field simulation of described current system and each analog parameter of described environmental simulation system and make it to reach testing requirements, start at last the transducer performance measurement mechanism measurement result is measured and exported to the transducer combination property, by with standard transducer performance index on the scope of relatively coming to determine the qualified parameter of transducer to be measured, and can reflect stability and the measuring repeatability of transducer to be measured.
Compared with prior art, the present invention has following beneficial effect: by detection and the test of this device and using method thereof, can under real stream mode, carry out ultrasonic discharge transducer static and dynamic performance comprehensive performance test, can make ultrasonic discharge transducer before do not pack into sensor and instrument complete machine, just can identify its main using property data and its reliability of prediction, and will classify to transducer and mate by the key property index.Do like this performance index, quality level and the production efficiency of ultrasonic meter tables such as can further improve water, heat, set up more science, system, reliable evaluation index and test method.
Description of drawings
Fig. 1 is the principle of work synoptic diagram of the embodiment of the invention 1.
Fig. 2 is the scheme of installation of transducer to be measured in the embodiment of the invention 1.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail.
Wherein, the real flow field simulation of described current system comprises the aqueous fluid drive unit 5 that is connected on the described closing pipe line 1, flow measurement device 6, flow stabilization apparatus 7, flow regulator 8, temperature measurement device 9, described temperature measurement device 9 are connected with water temperature and set and control device 10, described water temperature is set with control device 10 and is connected with heat riser 11 and the heat sink 12 that is arranged in the described closing pipe line 1, also is provided with vibration damping device 13 on the described aqueous fluid drive unit 5.
Wherein, described environmental simulation system comprises temperature survey and display device 14, moisture measurement and display device 15, vibration survey and display device 16 and time measurement and display device 17, described temperature survey and display device 14 are connected with Temperature Setting and control device 18, described moisture measurement and display device 15 are connected with humidity and set and control device 19, and described vibration survey and display device 16 are connected with vibratory output and set and control device 20.
2) aqueous fluid stops (being that flow is zero) two transducer two-way travel time difference measurements to be measured under the flox condition in normal temperature, low humidity, friction and the closing pipe line.Measure the single cycle time difference and repeatedly cycling time difference repeatability, and make automatically to record (that is: the propagation time difference of transducer A to transducer B and transducer B to transducer A).
3) normal temperature, low humidity, nothing is shaken and the in-pipe flow body stops two Drift quantity measurements that the transducer two-way travel time is poor under the flox condition.Measure the drift value of certain hour interval (as: 1h, 2h, 4h, ﹒ ﹒ ﹒, 12h, 24h, 48h) mistiming, and make automatic record.
4) normal temperature, low humidity, without shaking and the in-pipe flow body is in and stops or during flow state, the time drift amount of the centre frequency of measurement transducer, output amplitude, propagation time difference and These parameters, and make automatic record.
5) keep the interior humidity of environmental test chamber to be low wet condition under the friction condition, change environmental test the temperature inside the box, time drift amount aqueous fluid in closing pipe line of observation transducer centre frequency, output amplitude, propagation time difference and These parameters stops or the variable quantity during flow state, and makes automatic record.
6) keep temperature-resistant in the environmental test chamber under the friction condition, change humidity in the environmental test chamber, the time drift amount of observation transducer centre frequency, output amplitude, propagation time difference and These parameters stops or variable quantity during flow state at the in-pipe flow body, and makes automatic record.
7) amplitude and the frequency of the internal vibration of change environmental test chamber under normal temperature and the low humidity condition, the time drift amount of observation transducer centre frequency, output amplitude, propagation time difference and These parameters stops or variable quantity during flow state at the in-pipe flow body, and makes automatic record.
8) normal temperature, low humidity, when aqueous fluid stops flow state in the condition lower pipeline that shakes, the propagation time difference of record transducer; Then under large flow condition, make the transducer work some time, and then blinding off a line that to make flow be zero, the propagation time difference of observation transducer, twice aqueous fluid stops mistiming under the flow state before and after the record automatically, with and variable quantity.
9) change water temperature in the closing pipe line under normal temperature, low humidity, the friction condition, the time drift amount of observation transducer centre frequency, output amplitude, propagation time difference and These parameters stops or variable quantity during flow state at the in-pipe flow body, and makes automatic record.
10) constantly reduce flow value in the closing pipe line under normal temperature, low humidity, the friction condition, the mistiming that the simultaneous observation transducer repeatedly circulates, until observe minimum stream value when the minimum time that meets accuracy requirement is poor to be occurred, and make automatic record.
11) adjust respectively the setting angle of transducer under normal temperature, low humidity, the friction condition, the output amplitude of observation transducer.
12) other the pilot project combination that can carry out.
13) transducer in certain margin tolerance such as centre frequency, output amplitude, drift (temperature drift and time drift) is carried out stepping, pairing.
14) situation that transducer does not meet technical requirement occurs such as test findings, the standard transducer that one of them transducer can be changed into dependable performance is replaced test, thereby identifies undesirable transducer.
Embodiment 3, a kind of using method of above-mentioned ultrasonic discharge transducer comprehensive performance testing device, it is characterized in that: the two ends that two transducers are positioned over described transducer erecting frame 4, one of them is transducer to be measured, another is stable performance, characteristic good after the installation, transducer through aging test, and it is used as the standard transducer, then regulate each analog parameter of the real flow field simulation of described current system and each analog parameter of described environmental simulation system and make it to reach testing requirements, start at last 21 pairs of transducer combination properties of transducer performance measurement mechanism and measure and export measurement result, by with standard transducer performance index on the scope of relatively coming to determine the qualified parameter of transducer to be measured, and can reflect stability and the measuring repeatability of transducer to be measured.
But the main experimental project of this method and pilot project and the method for method reference example 2.
Claims (9)
1. ultrasonic discharge transducer comprehensive performance testing device, it is characterized in that: comprise closing pipe line (1), be provided with environmental test chamber (2) on the described closing pipe line (1), also be provided with the real flow field simulation of current system on the described closing pipe line (1), described environmental test chamber is provided with environmental simulation system in (2), transducer erecting frame (4), and the measurement stand (3) that is used for fixing described transducer erecting frame (4), two transducers to be measured are positioned over the two ends of described transducer erecting frame (4), described environmental test chamber (2) is outside equipped with transducer performance measurement mechanism (21), and described transducer performance measurement mechanism (21) is connected on two transducers to be measured.
2. a kind of ultrasonic discharge transducer comprehensive performance testing device according to claim 1, it is characterized in that: the real flow field simulation of described current system comprises the aqueous fluid drive unit (5) that is connected on the described closing pipe line (1), flow measurement device (6), flow stabilization apparatus (7), flow regulator (8), temperature measurement device (9).
3. described a kind of ultrasonic discharge transducer comprehensive performance testing device according to claim 2, it is characterized in that: described temperature measurement device (9) is connected with water temperature and sets and control device (10), and described water temperature is set with control device (10) and is connected with heat riser (11) and the heat sink (12) that is arranged in the described closing pipe line (1).
4. described a kind of ultrasonic discharge transducer comprehensive performance testing device according to claim 3 is characterized in that: also be provided with vibration damping device (13) on the described aqueous fluid drive unit (5).
5. described a kind of ultrasonic discharge transducer comprehensive performance testing device according to claim 1, it is characterized in that: described environmental simulation system comprises temperature survey and display device (14), moisture measurement and display device (15), vibration survey and display device (16) and time measurement and display device (17), described temperature survey and display device (14) are connected with Temperature Setting and control device (18), described moisture measurement and display device (15) are connected with humidity and set and control device (19), and described vibration survey and display device (16) are connected with vibratory output and set and control device (20).
6. the described described a kind of ultrasonic discharge transducer comprehensive performance testing device of arbitrary claim in 5 according to claim 1, it is characterized in that: the central axis of the central axis of described measurement stand (3) and described transducer erecting frame (4) intersects, and both angles are 30
o～60
o
7. described a kind of ultrasonic discharge transducer comprehensive performance testing device according to claim 6 is characterized in that: on the described transducer erecting frame (4) the transducer angular adjustment apparatus is installed.
8. the using method of a ultrasonic discharge transducer comprehensive performance testing device as claimed in claim 1, it is characterized in that: the two ends that two transducers to be measured are positioned over described transducer erecting frame 4, then regulate each analog parameter of the real flow field simulation of described current system and each analog parameter of described environmental simulation system and make it to reach testing requirements, start at last 21 pairs of transducer combination properties of transducer performance measurement mechanism and measure and export measurement result.
9. the using method of a ultrasonic discharge transducer comprehensive performance testing device as claimed in claim 1, it is characterized in that: the two ends that two transducers are positioned over described transducer erecting frame 4, one of them is transducer to be measured, another is stable performance, characteristic good after the installation, transducer through aging test, and it is used as the standard transducer, then regulate each analog parameter of the real flow field simulation of described current system and each analog parameter of described environmental simulation system and make it to reach testing requirements, start at last 21 pairs of transducer combination properties of transducer performance measurement mechanism and measure and export measurement result, by with standard transducer performance index on the scope of relatively coming to determine the qualified parameter of transducer to be measured, and can reflect stability and the measuring repeatability of transducer to be measured.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104535141A (en) * | 2014-12-23 | 2015-04-22 | 重庆川仪自动化股份有限公司 | Flow speed simulating system and method of ultrasonic flowmeter |
| CN108776238A (en) * | 2018-07-27 | 2018-11-09 | 中科传启（苏州）科技有限公司 | Ultrasonic wind velocity indicator transducer performance degradation mode detection method |
| CN110068384A (en) * | 2019-03-12 | 2019-07-30 | 宁波水表股份有限公司 | The screening technique of ultrasonic wave standard emission energy converter for inspection |
| CN116447124A (en) * | 2023-03-31 | 2023-07-18 | 利欧集团浙江泵业有限公司 | Water pump with ultrasonic flow detection control function and method |
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| CN116447124A (en) * | 2023-03-31 | 2023-07-18 | 利欧集团浙江泵业有限公司 | Water pump with ultrasonic flow detection control function and method |
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Effective date of registration: 20161207 Address after: 315032 Zhejiang Province, Ningbo Jiangbei District North Sea Road 268 Lane 99 Patentee after: Ningbo Water Meter Co., Ltd. Patentee after: Ningbo University Address before: 315032 Zhejiang Province, Ningbo Jiangbei District North Sea Road 268 Lane 99 Patentee before: Ningbo Water Meter Co., Ltd. Patentee before: Ningbo Haoshida Instrument Technology Co., Ltd. Patentee before: Ningbo University |
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Address after: 315032 No. 268, Lane 99, Beihai Road, Jiangbei District, Zhejiang, Ningbo Co-patentee after: Ningbo University Patentee after: Ningbo water meter (Group) Co.,Ltd. Address before: 315032 No. 268, Lane 99, Beihai Road, Jiangbei District, Zhejiang, Ningbo Co-patentee before: Ningbo University Patentee before: NINGBO WATER METER Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |