CN109596194A - Spinner flowmeter corrects system and bearing calibration - Google Patents
Spinner flowmeter corrects system and bearing calibration Download PDFInfo
- Publication number
- CN109596194A CN109596194A CN201910092361.6A CN201910092361A CN109596194A CN 109596194 A CN109596194 A CN 109596194A CN 201910092361 A CN201910092361 A CN 201910092361A CN 109596194 A CN109596194 A CN 109596194A
- Authority
- CN
- China
- Prior art keywords
- rotor flowmeter
- flowmeter
- flow
- measured rotor
- master control
- 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
- 238000001514 detection method Methods 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 238000012937 correction Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 9
- 238000012360 testing method Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 4
- 238000011897 real-time detection Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The embodiment of the invention discloses a kind of spinner flowmeters to correct system and bearing calibration, the system comprises: traffic sources system, standard rotor flowmeter, measured rotor flowmeter and master control system；The traffic sources system is connect with the measured rotor flowmeter, the standard rotor flowmeter is connected to the measured rotor flowmeter, the master control system is connect with the measured rotor flowmeter, the standard rotor flowmeter is connect with the traffic sources system, and the standard rotor flowmeter is connect with the master control system.The present invention can automatically detect the flow pulse precision of measured rotor flowmeter, by being compared with standard rotor flowmeter, the parameter of the main control chip of measured rotor flowmeter is set by master control system, adjust the pulse precision of measured rotor flowmeter, until the flow pulse precision of measured rotor flowmeter reaches the standard of setting, by running parameter of the setting measured rotor flowmeter under different flow mode, the precision in gamut scope may be implemented.
Description
Technical field
The present invention relates to water meters to measure alignment technique field, especially a kind of spinner flowmeter correction system and correction side
Method.
Background technique
Currently, the checking table of the equipment such as most of water meters, gas meter be it is nonautomatic, by metrological personnel be manually operated complete,
It clamps water meter or gas meter, open manually-operated gate and the reading of regulating water flow or throughput, closing valve, copy reading water meter or gas meter
The problem of number reads reading in volumetric standard, calculates the work such as error, artificial calibration be large labor intensity, working efficiency it is low,
There are human errors, and to the more demanding of equipment, meter correcting system is complicated.Meanwhile when water meter or gas meter pass through different flow, because
The frictional force being subject to for water meter or gas meter impeller is nonlinear.Therefore cause under different flows, water meter or gas meter error
Have difference.The error of water meter or gas meter in gamut scope is caused to vary.
Therefore, the prior art needs to improve.
Summary of the invention
One technical problem to be solved by the embodiment of the invention is that: a kind of spinner flowmeter correction system and correction are provided
Method, of the existing technology to solve the problems, such as, the spinner flowmeter correction system includes:
Traffic sources system, standard rotor flowmeter, measured rotor flowmeter and master control system；
The traffic sources system is connect with the measured rotor flowmeter, for providing stream to the measured rotor flowmeter
Amount, to detect the flow pulse value of measured rotor flowmeter；
The standard rotor flowmeter is connected to the measured rotor flowmeter, is detected by the standard rotor flowmeter
Whether the precision of the measured rotor flowmeter is qualified；
The master control system is connect with the measured rotor flowmeter, for adjusting the flow of the measured rotor flowmeter
Pulse value makes up to the flow measurement pulse value error range of setting；
The standard rotor flowmeter is connect with the traffic sources system, the water weight for flowing out measured rotor flowmeter
Newly it is recycled to traffic sources system；
The standard rotor flowmeter is connect with the master control system, the standard rotor flowmeter real-time detection traffic sources
The exact flow rate pulse value of system, and exact flow rate pulse value is sent to master control system, turned by master control system contrast standard
The pulse value of subflow meter and each self-test of measured rotor flowmeter, to judge the flow pulse value of the measured rotor flowmeter
Detection error.
In another embodiment based on the above-mentioned spinner flowmeter correction system of the present invention, the measured rotor flowmeter
Including PD181 flow rate detecting chip, the PD181 flow rate detecting chip includes communication interface, for the PD181 flow to be arranged
The running parameter of detection chip.
In another embodiment based on the above-mentioned spinner flowmeter correction system of the present invention, the standard rotor flowmeter
The traffic sources flow system flow value of detection is sent to the master control system by pulse mode.
In another embodiment based on the above-mentioned spinner flowmeter correction system of the present invention, the master control system is by setting
Measured rotor flowmeter described in the operating parameter control of the PD181 flow rate detecting chip of the measured rotor flowmeter is set in flow
Source system provides detection accuracy when different flow, and the master control system passes through communication interface to the PD181 flow detection core
Piece transmits data.
Other side based on the embodiment of the present invention discloses a kind of using spinner flowmeter correction system progress rotor stream
Meter bearing calibration, comprising:
Traffic sources system outlet is sequentially connected measured rotor flowmeter, standard rotor flowmeter, and by master control system with
Measured rotor flowmeter, standard rotor flowmeter are separately connected, by the outlet of standard rotor flowmeter and the traffic sources system
Import connection；
Master control system obtains the traffic sources flow system flow arteries and veins of measured rotor flowmeter and the detection of standard rotor flowmeter in real time
Punching value, and judge whether current measured rotor flowmeter and standard rotor flowmeter pulses difference are more than setting range；
If it is not, then the uninterrupted of adjustment traffic sources system, detects the measured rotor flowmeter under different flow again
With standard rotor flowmeter pulses difference；
If it is, by the running parameter of master control system adjustment measured rotor flowmeter, until current measured rotor flow
Meter and standard rotor flowmeter pulses difference are no more than setting range；
Measured rotor flowmeter and standard rotor flowmeter pulses of the detection when traffic sources system provides different flow are poor
Value, until the flow pulse detection of measured rotor flowmeter reaches setting accuracy.
In another embodiment based on the above-mentioned spinner flowmeter bearing calibration of the present invention, the master control system obtains in real time
The traffic sources flow system flow pulse value for taking measured rotor flowmeter and standard rotor flowmeter to detect, and judge current measured rotor
Flowmeter and standard rotor flowmeter pulses difference whether more than setting range include:
The flow pulse value for the traffic sources system that measured rotor flowmeter will test sends master control to by way of pulse
System；
The flow pulse value for the traffic sources system that standard rotor flowmeter will test sends master control to by way of pulse
System；
Master control system calculates the flow pulse of the traffic sources system of measured rotor flowmeter and the detection of standard rotor flowmeter
The difference of value；
Master control system by the flow difference currently calculated compared with the flow difference range of setting, and judge calculate flow
Whether difference is in the flow pulse difference range of setting.
In another embodiment based on the above-mentioned spinner flowmeter bearing calibration of the present invention, the master control system adjusts quilt
The running parameter of spinner flowmeter is surveyed, is set until current measured rotor flowmeter and standard rotor flowmeter pulses difference are no more than
Determining range includes:
The page is arranged in master control system display parameters, and obtains the running parameter of current measured rotor flowmeter；
The working flow mode of current measured rotor flowmeter is set, and adjusts the flow rate calculation essence of measured rotor flowmeter
Degree；
Whether the difference for detecting current measured rotor flowmeter and standard rotor flowmeter detection flows again is more than setting
Flow pulse difference；
If it is, the measured rotor flowmeter correction under completing the working flow mode of current measured rotor flowmeter；
If it is not, then continuing to adjust according to above step, until measured rotor flowmeter and standard rotor flowmeter detect
The difference of flow is no more than the flow pulse difference of setting.
Compared with prior art, the invention has the following advantages that
The invention proposes a kind of spinner flowmeter correction system and bearing calibrations, can automatically detect measured rotor flow
The master of measured rotor flowmeter is arranged by master control system by comparing with standard rotor flowmeter for the flow pulse precision of meter
The parameter of chip is controlled, the pulse precision of measured rotor flowmeter is adjusted, until the flow pulse precision of measured rotor flowmeter reaches
It may be implemented to the standard of setting by running parameter of the setting measured rotor flowmeter under different flow mode in full dose
Precision within the scope of journey.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
The attached drawing for constituting part of specification describes the embodiment of the present invention, and together with description for explaining
The principle of the present invention.
The present invention can be more clearly understood according to following detailed description referring to attached drawing, in which:
Fig. 1 is the structural schematic diagram of one embodiment that spinner flowmeter of the invention corrects system；
Fig. 2 is the flow chart of one embodiment of spinner flowmeter bearing calibration of the invention.
In figure: 1 traffic sources system, 2 standard rotor flowmeters, 3 measured rotor flowmeters, 4 master control systems.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
Fig. 1 is the structural schematic diagram of one embodiment that spinner flowmeter of the invention corrects system, as shown in Figure 1, institute
Stating spinner flowmeter correction system includes:
Traffic sources system 1, standard rotor flowmeter 2, measured rotor flowmeter 3 and master control system 4；
The traffic sources system 1 is connect with the measured rotor flowmeter 3, for mentioning to the measured rotor flowmeter 3
For flow, to detect the flow pulse value of measured rotor flowmeter 3；
The standard rotor flowmeter 2 is connected to the measured rotor flowmeter 3, passes through the standard rotor flowmeter 2
Whether the precision for detecting the measured rotor flowmeter 3 is qualified；
The master control system 4 is connect with the measured rotor flowmeter 3, for adjusting the measured rotor flowmeter 3
Flow pulse value makes up to the flow measurement pulse value error range of setting；
The standard rotor flowmeter 2 is connect with the traffic sources system 1, for flow out measured rotor flowmeter 3
Water is recycled to traffic sources system 1 again；
The standard rotor flowmeter 2 is connect with the master control system 4, the 2 real-time detection stream of standard rotor flowmeter
The exact flow rate pulse value of amount source system 1, and exact flow rate pulse value is sent to master control system 4, it is compared by master control system 4
The pulse value of standard rotor flowmeter 2 and each self-test of measured rotor flowmeter 3, to judge the measured rotor flowmeter 3
Flow pulse value detection error.
The measured rotor flowmeter 3 includes PD181 flow rate detecting chip, and the PD181 flow rate detecting chip includes logical
Believe that interface has pulse to work as the running parameter of the PD181 flow rate detecting chip to be arranged inside PD181 flow rate detecting chip
Amount and meter constant register can be arranged parameter by communication interface, different parameters matched in the case where different in flow rate,
So that water meter corresponds to different coefficients in the case where common flow, minimum discharge, boundary flow, current-carrying capacity excessively, so that water meter
High-precision is attained by gamut scope.
The standard rotor flowmeter 2 is flowed by pulse mode to the traffic sources system 1 that the master control system 4 sends detection
Magnitude, standard rotor flowmeter 2 is one and has already passed through accurate corrected high-precision water meter, passes through standard rotor flowmeter
2 flow sends master control system 4 to by way of pulse.
The running parameter that the master control system 4 passes through the PD181 flow rate detecting chip of the setting measured rotor flowmeter 3
Detection accuracy of the measured rotor flowmeter 3 when traffic sources system 1 provides different flow is controlled, the master control system 4 is logical
It crosses communication interface and transmits data to the PD181 flow rate detecting chip.
The traffic sources system 1 includes tank, water pump, and the tank is connected to water pump, and the master control system 4 is adjusted
Water pump controls the flow by measured rotor flowmeter 3, by the pulse signal of the standard rotor flowmeter 2 received, leads to
The parameter of adjustment PD181 flow rate detecting chip is crossed, so that measured rotor flowmeter 3 and standard rotor flowmeter 2 are in identical item
Under part, the pulse signal of output is identical.
Fig. 2 is the flow chart of one embodiment of spinner flowmeter bearing calibration of the invention, as shown in Fig. 2, described turn
Subflow meter bearing calibration includes:
10, the outlet of traffic sources system 1 is sequentially connected measured rotor flowmeter 3, standard rotor flowmeter 2, and by master control
System 4 is separately connected with measured rotor flowmeter 3, standard rotor flowmeter 2, by the outlet of standard rotor flowmeter 2 with it is described
The import of traffic sources system 1 connects；
20, master control system 4 obtains the traffic sources system 1 that measured rotor flowmeter 3 and standard rotor flowmeter 2 detect in real time
Flow pulse value, and judge whether current measured rotor flowmeter 3 and 2 pulse difference of standard rotor flowmeter are more than setting model
It encloses；
30, if it is not, then the uninterrupted of adjustment traffic sources system 1, detects the measured rotor stream under different flow again
2 pulse difference of meter 3 and standard rotor flowmeter；
40, if it is, the running parameter of measured rotor flowmeter 3 is adjusted by master control system 4, until current measured rotor
Flowmeter 3 and 2 pulse difference of standard rotor flowmeter are no more than setting range；
50, detect the measured rotor flowmeter 3 and standard rotor flowmeter 2 when traffic sources system 1 provides different flow
Pulse difference, until the flow pulse detection of measured rotor flowmeter 3 reaches setting accuracy.
The master control system 4 obtains the traffic sources system that measured rotor flowmeter 3 and standard rotor flowmeter 2 detect in real time
1 flow pulse value, and judge whether current measured rotor flowmeter 3 and 2 pulse difference of standard rotor flowmeter are more than setting model
It encloses and includes:
The flow pulse value for the traffic sources system 1 that measured rotor flowmeter 3 will test sends master to by way of pulse
Control system 4；
The flow pulse value for the traffic sources system 1 that standard rotor flowmeter 2 will test sends master to by way of pulse
Control system 4；
Master control system 4 calculates the flow for the traffic sources system 1 that measured rotor flowmeter 3 and standard rotor flowmeter 2 detect
The difference of pulse value；
Master control system 4 by the flow difference currently calculated compared with the flow difference range of setting, and judge calculate stream
Difference is measured whether in the flow pulse difference range of setting.
The master control system 4 adjusts the running parameter of measured rotor flowmeter 3, until current 3 He of measured rotor flowmeter
2 pulse difference of standard rotor flowmeter includes: no more than setting range
The page is arranged in 4 display parameters of master control system, and obtains the running parameter of current measured rotor flowmeter 3；
The working flow mode of current measured rotor flowmeter 3 is set, and adjusts the flow rate calculation of measured rotor flowmeter 3
Precision；
Whether the difference for detecting 2 detection flows of current measured rotor flowmeter 3 and standard rotor flowmeter again is more than to set
Fixed flow pulse difference；
If it is, 3 school of measured rotor flowmeter under completing the working flow mode of current measured rotor flowmeter 3
Table；
If it is not, then continuing to adjust according to above step, until measured rotor flowmeter 3 and standard rotor flowmeter 2 are examined
The difference of measurement of discharge is no more than the flow pulse difference of setting.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with its
The difference of its embodiment, the same or similar part cross-reference between each embodiment.For system embodiment
For, since it is substantially corresponding with embodiment of the method, so being described relatively simple, referring to the portion of embodiment of the method in place of correlation
It defends oneself bright.
Description of the invention is given for the purpose of illustration and description, and is not exhaustively or will be of the invention
It is limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.It selects and retouches
It states embodiment and is to more preferably illustrate the principle of the present invention and practical application, and those skilled in the art is enable to manage
The solution present invention is to design various embodiments suitable for specific applications with various modifications.
Claims (7)
1. a kind of spinner flowmeter corrects system characterized by comprising
Traffic sources system, standard rotor flowmeter, measured rotor flowmeter and master control system；
The traffic sources system is connect with the measured rotor flowmeter, for providing flow to the measured rotor flowmeter,
To detect the flow pulse value of measured rotor flowmeter；
The standard rotor flowmeter is connected to the measured rotor flowmeter, by described in standard rotor flowmeter detection
Whether the precision of measured rotor flowmeter is qualified；
The master control system is connect with the measured rotor flowmeter, for adjusting the flow pulse of the measured rotor flowmeter
Value, makes up to the flow measurement pulse value error range of setting；
The standard rotor flowmeter is connect with the traffic sources system, and the water for flowing out measured rotor flowmeter returns again
It receives to traffic sources system；
The standard rotor flowmeter is connect with the master control system, the standard rotor flowmeter real-time detection traffic sources system
Exact flow rate pulse value, and exact flow rate pulse value is sent to master control system, passes through master control system contrast standard rotor stream
The pulse value of meter and each self-test of measured rotor flowmeter, to judge the flow pulse value detection of the measured rotor flowmeter
Error.
2. spinner flowmeter according to claim 1 corrects system, which is characterized in that the measured rotor flowmeter includes
PD181 flow rate detecting chip, the PD181 flow rate detecting chip includes communication interface, for the PD181 flow detection to be arranged
The running parameter of chip.
3. spinner flowmeter according to claim 1 corrects system, which is characterized in that the standard rotor flowmeter passes through
Pulse mode sends the traffic sources flow system flow value of detection to the master control system.
4. spinner flowmeter according to claim 2 corrects system, which is characterized in that the master control system passes through setting institute
Measured rotor flowmeter described in the operating parameter control of the PD181 flow rate detecting chip of measured rotor flowmeter is stated in traffic sources system
System provides detection accuracy when different flow, and the master control system is passed by communication interface to the PD181 flow rate detecting chip
Transmission of data.
5. a kind of spinner flowmeter bearing calibration, which is characterized in that use the described in any item spinners of Claims 1-4 4
Correction system is counted, method includes:
Traffic sources system outlet is sequentially connected measured rotor flowmeter, standard rotor flowmeter, and by master control system and is tested
Spinner flowmeter, standard rotor flowmeter are separately connected, by the outlet of standard rotor flowmeter and the traffic sources system into
Mouth connection；
Master control system obtains the traffic sources flow system flow pulse value of measured rotor flowmeter and the detection of standard rotor flowmeter in real time,
And judge whether current measured rotor flowmeter and standard rotor flowmeter pulses difference are more than setting range；
If it is not, then the uninterrupted of adjustment traffic sources system, detects the measured rotor flowmeter and mark under different flow again
Quasi- spinner flowmeter pulse difference；
If it is, by master control system adjustment measured rotor flowmeter running parameter, until current measured rotor flowmeter and
Standard rotor flowmeter pulses difference is no more than setting range；
The measured rotor flowmeter and standard rotor flowmeter pulses difference when traffic sources system provides different flow are detected, directly
Flow pulse detection to measured rotor flowmeter reaches setting accuracy.
6. spinner flowmeter bearing calibration according to claim 5, which is characterized in that the master control system obtains quilt in real time
The traffic sources flow system flow pulse value of spinner flowmeter and the detection of standard rotor flowmeter is surveyed, and judges current measured rotor flow
Meter and standard rotor flowmeter pulses difference whether more than setting range include:
The flow pulse value for the traffic sources system that measured rotor flowmeter will test sends master control system to by way of pulse；
The flow pulse value for the traffic sources system that standard rotor flowmeter will test sends master control system to by way of pulse；
Master control system calculates the flow pulse value of the traffic sources system of measured rotor flowmeter and the detection of standard rotor flowmeter
Difference；
Master control system by the flow difference currently calculated compared with the flow difference range of setting, and judge calculate flow difference
Whether in the flow pulse difference range of setting.
7. spinner flowmeter according to claim 5 corrects system, which is characterized in that the master control system adjustment is tested to be turned
The running parameter of subflow meter, until current measured rotor flowmeter and standard rotor flowmeter pulses difference are no more than setting model
It encloses and includes:
The page is arranged in master control system display parameters, and obtains the running parameter of current measured rotor flowmeter；
The working flow mode of current measured rotor flowmeter is set, and adjusts the flow rate calculation precision of measured rotor flowmeter；
Detect again current measured rotor flowmeter and standard rotor flowmeter detection flows difference whether be more than setting stream
Measure pulse difference；
If it is, the measured rotor flowmeter correction under completing the working flow mode of current measured rotor flowmeter；
If it is not, then continuing to adjust according to above step, until measured rotor flowmeter and standard rotor flowmeter detection flows
Difference be no more than setting flow pulse difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910092361.6A CN109596194A (en) | 2019-01-30 | 2019-01-30 | Spinner flowmeter corrects system and bearing calibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910092361.6A CN109596194A (en) | 2019-01-30 | 2019-01-30 | Spinner flowmeter corrects system and bearing calibration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109596194A true CN109596194A (en) | 2019-04-09 |
Family
ID=65966966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910092361.6A Pending CN109596194A (en) | 2019-01-30 | 2019-01-30 | Spinner flowmeter corrects system and bearing calibration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109596194A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111854894A (en) * | 2020-07-13 | 2020-10-30 | 长春理工大学 | Flowmeter calibrating device of precision weighing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201707114U (en) * | 2010-06-23 | 2011-01-12 | 宁波明泰流量设备有限公司 | High-precision rapid pulse metering device |
| CN103487119A (en) * | 2013-09-29 | 2014-01-01 | 杭州竞达电子有限公司 | Full-automatic error correction checking device for electronic water meter and method thereof |
| CN207528311U (en) * | 2017-11-24 | 2018-06-22 | 中山市铧禧电子科技有限公司 | A kind of water flow sensing unit testboard |
| CN208026360U (en) * | 2018-03-14 | 2018-10-30 | 大连爱知时计科技有限公司 | Water meter performance measurement Law detecting system |
| CN208135890U (en) * | 2018-04-26 | 2018-11-23 | 北京拓盛电子科技有限公司 | A kind of safe magnetic coder |
-
2019
- 2019-01-30 CN CN201910092361.6A patent/CN109596194A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201707114U (en) * | 2010-06-23 | 2011-01-12 | 宁波明泰流量设备有限公司 | High-precision rapid pulse metering device |
| CN103487119A (en) * | 2013-09-29 | 2014-01-01 | 杭州竞达电子有限公司 | Full-automatic error correction checking device for electronic water meter and method thereof |
| CN207528311U (en) * | 2017-11-24 | 2018-06-22 | 中山市铧禧电子科技有限公司 | A kind of water flow sensing unit testboard |
| CN208026360U (en) * | 2018-03-14 | 2018-10-30 | 大连爱知时计科技有限公司 | Water meter performance measurement Law detecting system |
| CN208135890U (en) * | 2018-04-26 | 2018-11-23 | 北京拓盛电子科技有限公司 | A kind of safe magnetic coder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111854894A (en) * | 2020-07-13 | 2020-10-30 | 长春理工大学 | Flowmeter calibrating device of precision weighing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103234606B (en) | A kind of flow verification system and calibration method thereof | |
| CN103175588A (en) | Full-automatic series verification calibrating device with pressure-resistant water meter | |
| CN203259225U (en) | Flow detecting system | |
| US9429457B2 (en) | Nuclear magnetic flowmeter | |
| CN105403265A (en) | Automatic zero drift-correction ultrasound water meter and correction method | |
| JPH051939A (en) | Flow meter test device | |
| CN104359521B (en) | A kind of Large Copacity tank volume detecting system and scaling method | |
| CN206479237U (en) | A kind of water meter self-checking device | |
| KR101228427B1 (en) | Digital meter capable of modifying flow and automatic modifying system for the same digital meter | |
| CN111323102A (en) | Gas-liquid two-phase Coriolis mass flowmeter error calibration device and calibration method | |
| CN106441521A (en) | Full-automatic serial connection water meter verification and calibration device | |
| CN109596194A (en) | Spinner flowmeter corrects system and bearing calibration | |
| CN206038118U (en) | Medical subtend flow pattern mass flow meter's mass flow calibration device | |
| CN105004407B (en) | A kind of Instantaneous Fuel Consumption Monitor calibration system and its scaling method | |
| CN110108212A (en) | A kind of the fixation device and application method of tracing instrument detecting head | |
| CN103837215B (en) | Commutation valve type p.V.T.t method gas flow meter | |
| CN106996818A (en) | A kind of water meter fully-automatic laser gathers checking table | |
| CN205352516U (en) | Electron gas table calibrating installation | |
| CN102305676A (en) | Automatic calibrating apparatus on flow of heat energy meter | |
| Shimada et al. | Further investigation into a water flow rig related to calibration | |
| CN204788587U (en) | Transient state oil consumption appearance calibration system | |
| CN109099997A (en) | A kind of gas flow volume correction instrument automatic detection device | |
| CN206161119U (en) | Full -automatic series connection water gauge check -up calibrating installation | |
| CN113720424A (en) | Serial-parallel coupling type multi-station water meter calibrating device and method | |
| CN109403951A (en) | Oil well three-phase metering integrated apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190409 |
|
| RJ01 | Rejection of invention patent application after publication |