CN201532239U - Real flow testing device for electromagnetic susceptibility of water meter - Google Patents
Real flow testing device for electromagnetic susceptibility of water meter Download PDFInfo
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- CN201532239U CN201532239U CN200920281448XU CN200920281448U CN201532239U CN 201532239 U CN201532239 U CN 201532239U CN 200920281448X U CN200920281448X U CN 200920281448XU CN 200920281448 U CN200920281448 U CN 200920281448U CN 201532239 U CN201532239 U CN 201532239U
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Abstract
The utility model relates to a real flow testing device for the electromagnetic susceptibility of a water meter, and the real flow testing device comprises a water storage tank, a water pump, an electromagnetic flow meter and a tested water meter. The water pump is connected with the water storage tank through a pipeline; the water pump, the electromagnetic flow meter and the tested water meter are sequentially connected in series through a pipeline; the pipeline passes through the tested water meter and then is connected with the water storage tank; a valve A is arranged between the electromagnetic flow meter and the tested water meter; and a valve B connected with the water pump in parallel is arranged between the water storage tank and the electromagnetic flow meter. During a test, the tested water meter is put in an electromagnetic field test environment, the electromagnetic flow meter is used as a standard meter, the indication error of the tested water meter is measured without interference, the indication error is measured during the process of interference exerting test, and the two indication errors measured in the different environment are compared to obtain the indication error measured data with interference and the indication error measured data without interference. The real flow testing device has the advantages of simple structure, convenient operation, high practicability, convenient movement and the like.
Description
Technical field
The utility model relates to a kind of test unit, the real stream of specifically a kind of water meter electromagnetic susceptibility test unit.
Background technology
Requirement according to relevant " type evaluation outline " in " JJG162-2009 cold-water meter ", flow signal is changed out the water meter of direct-reading numeral by on-mechanical, as the water meter of electromagnetic type water meter, ultrasonic type water meter and the impeller signal conversion outflow by electronic induction etc., in other words, the water meter that electromagnetic field is had susceptibility all must be finished the sensitivity tests of electromagnetic field under interference of electromagnetic field equipment, with whether determine under the interference of electromagnetic field can operate as normal, whether indicating value overproof.
Because the restriction of test condition, relevant in the past water meter (comprising flowmeter) " type evaluation outline " is described unclear to the requirement of this test, generally to by the requirement of test agent being " energy operate as normal in the electromagnetic field test ".This test generally is reduced to, and will be put into interference of electromagnetic field environment by test agent, and whether the forward and backward data of having stored of record interference test change, and determine whether to meet the requirements.
To the state description of " operate as normal ", no definite definition can't measure the truth under disturbance state.
Will test under " real stream " by examination equipment according to " JJG162-2007 cold-water meter ", present equipment can't meet the demands.Method by outer aqueduct is arranged, but the inconvenience test, " reference flow " that reach test determination is also very difficult.
Summary of the invention
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art, provide a kind of simple in structure, be convenient to operate, the real stream of practical, the convenient water meter electromagnetic susceptibility that moves test unit.
For achieving the above object, the utility model adopts following technical proposals:
The real stream of a kind of water meter electromagnetic susceptibility test unit, comprise reserve tank, water pump, electromagnetic flowmeter and by water gauge, water pump is connected with reserve tank by pipeline, water pump, electromagnetic flowmeter and connected successively by pipeline by water gauge, pipeline is by being connected with reserve tank behind the water gauge, be provided with valve A at electromagnetic flowmeter with between, between reserve tank and electromagnetic flowmeter, be provided with the valve B in parallel with water pump by water gauge.
The utility model by water pump with the water in the reserve tank by electromagnetic flowmeter with by behind the water gauge, turn back in the reserve tank again.
During test, to be put into the electromagnetic field experimental enviroment by water gauge, electromagnetic flowmeter is as standard scale, under noiseless situation, measure once by the error of indication of water gauge, after applying the interference test process, measure an error of indication, twice error of indication compares, and draws the error of indication measurement data of disturbing with noiseless situation.The utlity model has simple in structure, be convenient to operation, practical, convenient advantage such as move.
Description of drawings
Fig. 1 is the utility model structural representation;
1. reserve tanks wherein, 2. water pump, 3. electromagnetic flowmeter, 4. valve A, 5. by water gauge, 6. valve B.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Among Fig. 1, the real stream of water meter electromagnetic susceptibility test unit, comprise reserve tank 1, water pump 2, electromagnetic flowmeter 3 and by water gauge 5, water pump 2 is connected with reserve tank 1 by pipeline, water pump 2, electromagnetic flowmeter 3 and connected successively by pipeline by water gauge 5, pipeline is provided with valve A4 by being connected with reserve tank 1 by water gauge 5 back at electromagnetic flowmeter 3 with between by water gauge 5, is provided with the valve B6 in parallel with water pump 2 between reserve tank 1 and electromagnetic flowmeter 3.
The utility model passes through electromagnetic flowmeter 3 by water pump 2 with the water in the reserve tank 1 and by behind the water gauge 5, turns back in the reserve tank 1 again.
During test, to be put into the electromagnetic field experimental enviroment by water gauge 5, electromagnetic flowmeter 3 is as standard scale, under noiseless situation, measure once by the error of indication of water gauge 5, after applying the interference test process, measure an error of indication, twice error of indication compares, and draws the error of indication measurement data of disturbing with noiseless situation.
The following requirement that has according to " JJG162-2007 cold-water meter vertification regulation " relevant electromagnetic susceptibility test:
A electromagnetic environment test-electromagnetic susceptibility
Whether B test objective check is met the requirements after the match the time applying electromagnetic radiation by water gauge 5 (EUT) by examination equipment.
The concise and to the point test routine of C
A) apply electromagnetic field before, under reference conditions, measure and be subjected to examination equipment by the inherent error of water gauge 5 (EUT);
C) begin to measure the error of indication of the equipment of being tried
D) progressively increase carrier frequency;
E) stop to measure the error of indication of the equipment of being tried;
Supplemental instruction: when measuring the error of indication, should be under the reference flow condition by examination equipment.
Claims (1)
1. a water meter electromagnetic susceptibility flows test unit in fact, it is characterized in that: comprise reserve tank, water pump, electromagnetic flowmeter and by water gauge, water pump is connected with reserve tank by pipeline, water pump, electromagnetic flowmeter and connected successively by pipeline by water gauge, pipeline is by being connected with reserve tank behind the water gauge, be provided with valve A at electromagnetic flowmeter with between, between reserve tank and electromagnetic flowmeter, be provided with the valve B in parallel with water pump by water gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920281448XU CN201532239U (en) | 2009-11-24 | 2009-11-24 | Real flow testing device for electromagnetic susceptibility of water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920281448XU CN201532239U (en) | 2009-11-24 | 2009-11-24 | Real flow testing device for electromagnetic susceptibility of water meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201532239U true CN201532239U (en) | 2010-07-21 |
Family
ID=42527642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920281448XU Expired - Fee Related CN201532239U (en) | 2009-11-24 | 2009-11-24 | Real flow testing device for electromagnetic susceptibility of water meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201532239U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115574A (en) * | 2015-07-20 | 2015-12-02 | 江西省水利水电建设有限公司 | On-site test method of judging accuracy of recorded information of grouting automatic recorder |
| CN105181087A (en) * | 2015-08-31 | 2015-12-23 | 苏州东剑智能科技有限公司 | Ultrasonic water meter metrological characteristics detection device and detection method thereof |
| CN112082572A (en) * | 2020-08-24 | 2020-12-15 | 中国石油天然气集团有限公司 | Device and method for calibrating magnetic interference of drilling tool |
| CN113340384A (en) * | 2021-05-28 | 2021-09-03 | 昆明理工大学 | Non-contact flow measurement method inspection device for open scene |
-
2009
- 2009-11-24 CN CN200920281448XU patent/CN201532239U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115574A (en) * | 2015-07-20 | 2015-12-02 | 江西省水利水电建设有限公司 | On-site test method of judging accuracy of recorded information of grouting automatic recorder |
| CN105181087A (en) * | 2015-08-31 | 2015-12-23 | 苏州东剑智能科技有限公司 | Ultrasonic water meter metrological characteristics detection device and detection method thereof |
| CN112082572A (en) * | 2020-08-24 | 2020-12-15 | 中国石油天然气集团有限公司 | Device and method for calibrating magnetic interference of drilling tool |
| CN112082572B (en) * | 2020-08-24 | 2023-04-25 | 中国石油天然气集团有限公司 | Device and method for calibrating magnetic interference of drilling tool |
| CN113340384A (en) * | 2021-05-28 | 2021-09-03 | 昆明理工大学 | Non-contact flow measurement method inspection device for open scene |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100721 Termination date: 20101124 |