CN202974355U - Ultrasonic flow measurement device - Google Patents
Ultrasonic flow measurement device Download PDFInfo
- Publication number
- CN202974355U CN202974355U CN 201220614789 CN201220614789U CN202974355U CN 202974355 U CN202974355 U CN 202974355U CN 201220614789 CN201220614789 CN 201220614789 CN 201220614789 U CN201220614789 U CN 201220614789U CN 202974355 U CN202974355 U CN 202974355U
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- China
- Prior art keywords
- ultrasonic
- pulse generator
- fluid line
- ultrasonic wave
- exit
- 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.)
- Expired - Fee Related
Links
- 238000005259 measurement Methods 0.000 title abstract description 11
- 239000012530 fluid Substances 0.000 claims abstract description 30
- 230000001702 transmitter Effects 0.000 claims abstract description 17
- 238000002592 echocardiography Methods 0.000 claims abstract description 8
- 230000001360 synchronised Effects 0.000 abstract 3
- 230000005540 biological transmission Effects 0.000 abstract 2
- 238000002604 ultrasonography Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
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Abstract
The utility model provides an ultrasonic flow measurement device, which comprises a fluid pipeline, a synchronous pulse generator, at least two ultrasonic transmitters, a single-channel ultrasonic receiver, a dual-channel transmission/receiving switch, at least two ultrasonic transducers, a single chip and an echo detector, wherein the ultrasonic transmitters are connected with the synchronous pulse generator respectively; the synchronous pulse generator is connected with the single chip; the ultrasonic transducers are arranged at an inlet and an outlet of the fluid pipeline respectively; the ultrasonic transmitters are connected with the ultrasonic transducers at the inlet and the outlet of the fluid pipeline respectively; the dual-channel transmission/receiving switch is connected between the at least two ultrasonic transducers, and is connected with the single chip; the ultrasonic transducers at the inlet and the outlet of the fluid pipeline are connected with the single-channel ultrasonic receiver respectively; and the single-channel ultrasonic receiver is connected with the echo detector to further improve the flow measurement accuracy of fluid.
Description
Technical field
The utility model relates to flow measurement device, particularly a kind of device for measuring ultrasonic wave flow.
Background technology
Traditional measuring ultrasonic wave flow is to adopt time difference method, typically uses as the family calorimeter.What measure due to time difference method is the small mistiming, from several nanoseconds to hundreds of nanosecond, so the resolution that requires the electronic circuit Measuring Time in picosecond, otherwise is difficult to guarantee the flow measurement precision.Realizing so high temporal resolution, is very difficult for modem electronic circuitry.
The utility model content
The technical problems to be solved in the utility model is how a kind of flow that detects the pipeline inner fluid by ultrasound wave is provided, and then improves the precision of fluid measurement.
For solving the problems of the technologies described above, the utility model provides a kind of device for measuring ultrasonic wave flow, comprise: fluid line, clock-pulse generator, at least two ultrasonic transmitters, the single channel ultrasonic wave receiver, binary channels sending/receiving switch, at least two ultrasonic transducers, single-chip microcomputer, echo detecting device;
Wherein, described ultrasonic transmitter is connected with described clock-pulse generator respectively; Described clock-pulse generator is connected with described single-chip microcomputer; Described ultrasonic transducer is installed on respectively the entrance and exit place of described fluid line; Described ultrasonic transmitter is connected with the exit being connected of described ultrasonic transducer with described fluid line porch respectively; Described binary channels sending/receiving switch is connected between described two ultrasonic transmitters at least, and is connected with described single-chip microcomputer; Be connected described ultrasonic transducer and be connected with described single channel ultrasonic wave receiver respectively in described fluid line porch with the exit; Described single channel ultrasonic wave receiver is connected with described echo detecting device.
Preferably, further comprise: temperature sensor is separately positioned on described fluid line porch and exit.
Compared with prior art, the utility model can be converted into frequency measurement with ultrasound wave travel-time of following current or adverse current in fluid, the derivative that obtains to be proportional to the difference on the frequency time of rate of flow of fluid by calculating is exactly difference on the frequency, the frequency difference measurement has very high flow resolution, be easy to realize the two_stage flow accuracy requirement, and then mentioned precision and the work efficiency of fluid measurement.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment and technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment and description of the Prior Art, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structured flowchart of a kind of device for measuring ultrasonic wave flow of providing of the utility model.
Embodiment
The below will engage the accompanying drawing in the utility model embodiment, and the technical scheme in the utility model embodiment is clearly and completely described, and obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to shown in Figure 1ly, Fig. 1 is the structured flowchart of a kind of device for measuring ultrasonic wave flow of providing of the utility model.
A kind of device for measuring ultrasonic wave flow that the utility model provides, comprise: fluid line, clock-pulse generator, at least two ultrasonic transmitters, single channel ultrasonic wave receiver, binary channels sending/receiving switch, at least two ultrasonic transducers, single-chip microcomputer, echo detecting device;
Wherein, described ultrasonic transmitter is connected with described clock-pulse generator respectively; Described clock-pulse generator is connected with described single-chip microcomputer; Described ultrasonic transducer is installed on respectively the entrance and exit place of described fluid line; Described ultrasonic transmitter is connected with the exit being connected of described ultrasonic transducer with described fluid line porch respectively; Described binary channels sending/receiving switch is connected between described two ultrasonic transmitters at least, and is connected with described single-chip microcomputer; Be connected described ultrasonic transducer and be connected with described single channel ultrasonic wave receiver respectively in described fluid line porch with the exit; Described single channel ultrasonic wave receiver is connected with described echo detecting device.
Particularly, described Single-chip Controlling clock-pulse generator produces a synchronization pulse, sends to respectively described ultrasonic transmitter; Described Single-chip Controlling binary channels sending and receiving switch, the synchronization pulse that makes described ultrasonic transmitter receive or send.The synchronization pulse that the fluid pulse signal that described ultrasonic transducer is detected and described ultrasonic transducer receive obtains to be proportional to the derivative of the difference on the frequency time of rate of flow of fluid by calculating, and obtains difference on the frequency.The flow of grasp pipeline inner fluid more effective according to this difference on the frequency.
A kind of device for measuring ultrasonic wave flow that the utility model provides can be converted into frequency measurement with ultrasound wave travel-time of following current or adverse current in fluid, and the derivative that obtains to be proportional to the difference on the frequency time of rate of flow of fluid by calculating is exactly difference on the frequency.Because the difference on the frequency of measuring is from tens mHz to hundreds of Hz, so the frequency difference measurement has very high flow resolution, is easy to realize 2 grades of flow accuracy requirements.
Therefore, the utility model effectively raises the measuring accuracy of pipeline inner fluid, and has improved work efficiency.
In addition, this device additionally provides the two-way temperature survey, uses the pairing platinum resistance temperature sensor, can measure water inlet and return water temperature and temperature difference.Flow and the temperature data measured output to external unit by spi bus, as heat Calculation device or flow rate calculation device.
The preferred implementation of a kind of device for measuring ultrasonic wave flow that the above only provides for the utility model does not consist of the restriction to the utility model protection domain.Number of components in this embodiment is not limited to the mode that adopts in embodiment; any any modification of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in claim protection domain of the present utility model.
Claims (2)
1. device for measuring ultrasonic wave flow, it is characterized in that, comprising: fluid line, clock-pulse generator, at least two ultrasonic transmitters, the single channel ultrasonic wave receiver, binary channels sending/receiving switch, at least two ultrasonic transducers, single-chip microcomputer, echo detecting device;
Wherein, described ultrasonic transmitter is connected with described clock-pulse generator respectively; Described clock-pulse generator is connected with described single-chip microcomputer; Described ultrasonic transducer is installed on respectively the entrance and exit place of described fluid line; Described ultrasonic transmitter is connected with the exit being connected of described ultrasonic transducer with described fluid line porch respectively; Described binary channels sending/receiving switch is connected between described two ultrasonic transmitters at least, and is connected with described single-chip microcomputer; Be connected described ultrasonic transducer and be connected with described single channel ultrasonic wave receiver respectively in described fluid line porch with the exit; Described single channel ultrasonic wave receiver is connected with described echo detecting device.
2. a kind of device for measuring ultrasonic wave flow according to claim 1, is characterized in that, further comprises: temperature sensor is separately positioned on described fluid line porch and exit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220614789 CN202974355U (en) | 2012-11-19 | 2012-11-19 | Ultrasonic flow measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220614789 CN202974355U (en) | 2012-11-19 | 2012-11-19 | Ultrasonic flow measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202974355U true CN202974355U (en) | 2013-06-05 |
Family
ID=48515414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220614789 Expired - Fee Related CN202974355U (en) | 2012-11-19 | 2012-11-19 | Ultrasonic flow measurement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202974355U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157773A (en) * | 2015-07-27 | 2015-12-16 | 陈庆 | Novel flow meter |
| CN105675072A (en) * | 2015-11-20 | 2016-06-15 | 北京捷成世纪科技股份有限公司 | Frequency difference type ultrasonic flow measurement device |
-
2012
- 2012-11-19 CN CN 201220614789 patent/CN202974355U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157773A (en) * | 2015-07-27 | 2015-12-16 | 陈庆 | Novel flow meter |
| CN105675072A (en) * | 2015-11-20 | 2016-06-15 | 北京捷成世纪科技股份有限公司 | Frequency difference type ultrasonic flow measurement device |
| CN105675072B (en) * | 2015-11-20 | 2019-04-09 | 北京捷成世纪科技股份有限公司 | A kind of frequency difference formula device for measuring ultrasonic wave flow |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20171119 |
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| CF01 | Termination of patent right due to non-payment of annual fee |