CN102323444A - Method for measuring flow velocity of fluid by ultrasonic method - Google Patents
Method for measuring flow velocity of fluid by ultrasonic method Download PDFInfo
- Publication number
- CN102323444A CN102323444A CN201110308997A CN201110308997A CN102323444A CN 102323444 A CN102323444 A CN 102323444A CN 201110308997 A CN201110308997 A CN 201110308997A CN 201110308997 A CN201110308997 A CN 201110308997A CN 102323444 A CN102323444 A CN 102323444A
- Authority
- CN
- China
- Prior art keywords
- fluid
- flow
- reference container
- flow velocity
- rate
- 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.)
- Pending
Links
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The invention relates to a method for measuring the flow velocity of a fluid by an ultrasonic method. The method comprises the following steps of: 1) dividing a sound production surface of an ultrasonic wave transceiver into two parts, and dividing a receiving surface of an ultrasonic wave receiver into two parts by a certain method; 2) arranging one part of the sound production surface and one part of the receiving surface in a reference container to be used as reference systems, wherein the reference container has the same geometrical shape as a measuring section of a channel used by a tested fluid, and a static fluid which has the same property as the tested fluid is filled in the reference container; 3) arranging the other part of the sound production surface and the other part of the receiving surface in the channel of the tested fluid to be used as measurement systems; and 4) measuring the flow velocity of the fluid by a time difference method or a phase frequency method. By the method, the problem of inaccuracy of the conventional ultrasonic wave method for measuring the flow velocity of the fluid is solved; and the accuracy of the ultrasonic wave time difference method or the phase frequency method for measuring the flow or the flow velocity of the fluid is improved.
Description
Technical field
The present invention relates to improve the method for ultrasound wave time difference method or phase frequency method measurement fluid flow or rate of flow of fluid precision.
Background technology
When existing employing ultrasonic measurement fluid flow or flow velocity; All think the speed in the water of sound wave constant; Just with the speed of sound wave in water as reference basis; But the velocity of propagation of the sound wave in the reality in the water can receive the influence of extraneous factors such as temperature, thereby influences the levels of precision of other fluid flows of ultrasonic measurement and flow velocity; Rate of flow of fluid also can receive the influence of time reference in addition, can produce, and time reference out of true, unsettled defective,, bigger to the measurement result influence.
Measuring speed will relate to time reference, and time reference out of true, instability are bigger to measuring influence.The single-chip microcomputer of gauge internal serves as that the electronic devices and components of reference clock have temperature drift, and time drift, thereby can cause the error of time reference according to hyperacoustic time difference of measurement with a reference clock.
Summary of the invention
Measure not problem accurately of rate of flow of fluid in order to solve existing supercritical ultrasonics technology, the present invention provides a kind of supercritical ultrasonics technology to measure the method for rate of flow of fluid.
Technical solution of the present invention:
Supercritical ultrasonics technology is measured the method for rate of flow of fluid, and its special character is: may further comprise the steps:
1], ultrasound wave is received the receiving plane of device and sent out separated into two parts with certain method the sounding face separated into two parts of ultrasonic transmitter-receiver;
2] the wherein part of sounding face and the wherein part of receiving plane are installed in the reference container, as reference system; Said reference container is identical with the measuring section geometric configuration of the used passage of detected fluid, and said reference container is contained with the stationary fluid with the detected fluid same nature;
3] wherein another part of sounding face and wherein another part of receiving plane are installed in the detected fluid passage, as Department of Survey;
4] adopt time difference method or phase frequency method to measure rate of flow of fluid.
Supercritical ultrasonics technology is measured the method for rate of flow of fluid, and its special character is: may further comprise the steps:
1] prepares two cover ultrasonic transmitter-receivers;
2] ultrasonic transmitter-receiver is installed in the reference container, as reference system; Said reference container is identical with the measuring section geometric configuration of the used passage of detected fluid, and said reference container is contained with the stationary fluid with the detected fluid same nature;
3] another ultrasonic transmitter-receiver is installed in the detected fluid passage, as Department of Survey;
4] adopt time difference method or phase frequency method to measure rate of flow of fluid.
The measuring section of the container of requirement reference system and the passage of tested segment fluid, geometric configuration should be identical as much as possible with size.Geometric configuration can be revised through the measured value of detected fluid when static with the error of size.
The advantage that the present invention had:
The present invention just can eliminate the influence to SVEL of time reference out of true problem of unstable and temperature like this.Can improve ultrasound wave time difference method or phase frequency method and measure the precision of fluid flow or rate of flow of fluid, especially obvious in low discharge, micro-flow measurement.
Embodiment
A kind of method of velocity measurement:
Sonic method is measured the method for rate of flow of fluid, may further comprise the steps:
1], ultrasound wave is received the receiving plane of device and sent out separated into two parts with certain method the sounding face separated into two parts of ultrasonic transmitter-receiver;
2] the wherein part of sounding face and the wherein part of receiving plane are installed in the reference container, as reference system; Said reference container is identical with the measuring section geometric configuration of the used passage of detected fluid, and said reference container is contained with the stationary fluid with the detected fluid same nature;
3] wherein another part of sounding face and wherein another part of receiving plane are installed in the detected fluid passage, as Department of Survey;
4] adopt time difference method or phase frequency method to measure rate of flow of fluid.
The method of another kind of velocity measurement:
Supercritical ultrasonics technology is measured the method for rate of flow of fluid, may further comprise the steps:
1] prepares two cover ultrasonic transmitter-receivers;
2] ultrasonic transmitter-receiver is installed in the reference container, as reference system; Said reference container is identical with the measuring section geometric configuration of the used passage of detected fluid, and said reference container is contained with the stationary fluid with the detected fluid same nature;
3] another ultrasonic transmitter-receiver is installed in the detected fluid passage, as Department of Survey;
4] adopt time difference method or phase frequency method to measure rate of flow of fluid.
The measuring section of the container of requirement reference system and the passage of tested segment fluid, geometric configuration should be identical as much as possible with size.Geometric configuration can be revised through the measured value of detected fluid when static with the error of size.
The sounding face of ultrasonic transmitter-receiver, receiving plane, use the certain method separated into two parts, the part of sounding face, receiving plane is installed in the stationary fluid with the detected fluid same nature, as reference system.Another part of sounding face, receiving plane is installed in the detected fluid passage, as measure portion.
Perhaps respectively with the independently hyperacoustic transceiver of two covers, the same with the method for front, conduct is as reference system part and measure portion respectively.
The measuring section of the container of requirement reference system and the passage of tested segment fluid, geometric configuration should be identical as much as possible with size.Geometric configuration can be revised through the measured value of detected fluid when static with the error of size.
So just can eliminate the influence of time reference out of true problem of unstable and temperature to SVEL.Thereby can improve the precision that ultrasound wave time difference method or phase frequency method are measured fluid flow or rate of flow of fluid, especially obvious in low discharge, micro-flow measurement.
Claims (2)
1. supercritical ultrasonics technology is measured the method for rate of flow of fluid, it is characterized in that: may further comprise the steps:
1], ultrasound wave is received the receiving plane of device and sent out separated into two parts with certain method the sounding face separated into two parts of ultrasonic transmitter-receiver;
2] the wherein part of sounding face and the wherein part of receiving plane are installed in the reference container, as reference system; Said reference container is identical with the measuring section geometric configuration of the used passage of detected fluid, and said reference container is contained with the stationary fluid with the detected fluid same nature;
3] wherein another part of sounding face and wherein another part of receiving plane are installed in the detected fluid passage, as Department of Survey;
4] adopt time difference method or phase frequency method to measure rate of flow of fluid.
2. supercritical ultrasonics technology is measured the method for rate of flow of fluid, it is characterized in that: may further comprise the steps:
1] prepares two cover ultrasonic transmitter-receivers;
2] ultrasonic transmitter-receiver is installed in the reference container, as reference system; Said reference container is identical with the measuring section geometric configuration of the used passage of detected fluid, and said reference container is contained with the stationary fluid with the detected fluid same nature;
3] another ultrasonic transmitter-receiver is installed in the detected fluid passage, as Department of Survey;
4] adopt time difference method or phase frequency method to measure rate of flow of fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110308997A CN102323444A (en) | 2011-10-12 | 2011-10-12 | Method for measuring flow velocity of fluid by ultrasonic method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110308997A CN102323444A (en) | 2011-10-12 | 2011-10-12 | Method for measuring flow velocity of fluid by ultrasonic method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102323444A true CN102323444A (en) | 2012-01-18 |
Family
ID=45451227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110308997A Pending CN102323444A (en) | 2011-10-12 | 2011-10-12 | Method for measuring flow velocity of fluid by ultrasonic method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102323444A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403265A (en) * | 2015-12-16 | 2016-03-16 | 宁波水表股份有限公司 | Automatic zero drift-correction ultrasound water meter and correction method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1259666A (en) * | 1999-01-06 | 2000-07-12 | 时代集团公司 | Method of inhibiting crosstalk noise in ultrasonic measurement |
| US20020143480A1 (en) * | 2001-03-30 | 2002-10-03 | Surpass Industry Co., Ltd. | Method and apparatus for measuring flow velocity and method and apparatus for measuring flow rate |
| CN1431496A (en) * | 2003-01-30 | 2003-07-23 | 南京大学 | Difference method for measuring change of ultrasonic gases in microscale and its control and evaluation system |
| CN102095889A (en) * | 2010-11-29 | 2011-06-15 | 河海大学常州校区 | Three-channel ultrasonic time difference method for measuring flow velocity |
-
2011
- 2011-10-12 CN CN201110308997A patent/CN102323444A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1259666A (en) * | 1999-01-06 | 2000-07-12 | 时代集团公司 | Method of inhibiting crosstalk noise in ultrasonic measurement |
| US20020143480A1 (en) * | 2001-03-30 | 2002-10-03 | Surpass Industry Co., Ltd. | Method and apparatus for measuring flow velocity and method and apparatus for measuring flow rate |
| CN1431496A (en) * | 2003-01-30 | 2003-07-23 | 南京大学 | Difference method for measuring change of ultrasonic gases in microscale and its control and evaluation system |
| CN102095889A (en) * | 2010-11-29 | 2011-06-15 | 河海大学常州校区 | Three-channel ultrasonic time difference method for measuring flow velocity |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403265A (en) * | 2015-12-16 | 2016-03-16 | 宁波水表股份有限公司 | Automatic zero drift-correction ultrasound water meter and correction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102636226B (en) | Determining delay times for ultrasonic flow meters | |
| RU2590318C2 (en) | Verification of temperature of ultrasonic flow meters | |
| MX370992B (en) | Improved signal travel time flow meter. | |
| US10260929B2 (en) | System and method for measuring a signal propagation speed in a liquid or gaseous medium | |
| RU2015106923A (en) | DETERMINATION OF THE CHARACTERISTIC OF A FLUID FOR A MULTI-COMPONENT FLUID WITH A COMPRESSIBLE AND AN INCOMPRESSIBLE COMPONENTS | |
| RU2014120513A (en) | Borehole tool for determining flow rate | |
| CN103808381A (en) | Temperature influence eliminating method for time difference ultrasonic flowmeter | |
| US10082486B2 (en) | Method for recognizing the presence of liquid in a gas flow | |
| CN105403265A (en) | Automatic zero drift-correction ultrasound water meter and correction method | |
| CN103983316A (en) | Bullet type flow stabilizer | |
| CN103713044A (en) | Distributed ultrasonic liquid concentration detection system and method thereof | |
| CN102829830B (en) | Method and the device of ultrasonic propagation velocity is detected in detecting for ultrasonic flow | |
| Han et al. | Studies on the transducers of clamp-on transit-time ultrasonic flow meter | |
| CA2823688A1 (en) | Method for in-situ calibrating a differential pressure plus sonar flow meter system using dry gas conditions | |
| CN203132616U (en) | Combined type ultrasonic multichannel flow transmitter | |
| CN102095889B (en) | Three-channel ultrasonic time difference method for measuring flow velocity | |
| CN206291930U (en) | A kind of ultrasonic wave mass flowmenter | |
| CA2868978C (en) | Speed of sound and/or density measurement using acoustic impedance | |
| CN102323444A (en) | Method for measuring flow velocity of fluid by ultrasonic method | |
| CN105486381A (en) | Sound wave water level gauge | |
| GB2548765A (en) | Ultrasonic Viscometer | |
| CN203606022U (en) | Multi-medium ultrasonic propagation characteristic measurement device with adjustable temperature and pressure | |
| CN203489926U (en) | Ultrasonic flow meter | |
| CN103697998B (en) | Multimedium temperature and pressure adjustable Ultrasonic Wave Propagation Character measurement apparatus | |
| KR102088845B1 (en) | Method for measuring flow rate of ultrasonic flow meter including recessed ultrasonic transducer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120118 |