CN210953042U - Synchronous method flow testing device - Google Patents
Synchronous method flow testing device Download PDFInfo
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- CN210953042U CN210953042U CN201921943698.5U CN201921943698U CN210953042U CN 210953042 U CN210953042 U CN 210953042U CN 201921943698 U CN201921943698 U CN 201921943698U CN 210953042 U CN210953042 U CN 210953042U
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Abstract
The utility model discloses a synchronous method flow test device, including being surveyed the table, being surveyed table signal collector, the control unit, the etalon, etalon signal collector, signal output device, being surveyed the table and being surveyed table signal collector's one end and linking to each other, being surveyed table signal collector's the other end and the control unit link to each other, the control unit links to each other with etalon signal collector, etalon signal collector links to each other with the etalon, etalon signal collector links to each other with signal output device. The utility model discloses a synchronous method test has solved the problem that the reading of etalon is delayed than the reading of flowmeter in the operation process, has eliminated in the measurement process because the error that the reading delay brought has improved the detection accuracy of flow meter.
Description
Technical Field
The invention relates to the field of instrument verification, in particular to a flow testing device by using a synchronization method.
Background
The flowmeter is one of measuring instruments, and the measurement is an important technical basis of the whole national economy and widely exists in the production and the life of enterprises and residents. The flowmeter is mainly used for energy commercial trade data measurement, or data measurement in the processes of production control, monitoring and the like, or energy measurement of water, electricity and gas required in production and life of enterprises and residents, so that the accuracy of the flowmeter is particularly important, and the flowmeter is an important means for ensuring the accuracy of a measurement value for flowmeter verification and test. According to national metrological verification rules, the flow meter must perform verification tests at regular intervals.
The calibration test of the flowmeter is completed through a standard device, the counting and the display of the existing electronic flowmeter are all in a jump type, and two methods are adopted during calibration, wherein one method is an intermittent start-stop method, but the method is influenced by a flowmeter switch to cause the inaccuracy of a measurement result; the other is an uninterrupted measurement, but during operation the reading of the etalon is delayed compared to the reading of the flow meter, and this delay uncertainty introduces measurement errors. How to eliminate the measurement error in the test process and improve the test precision is an urgent problem to be solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to prior art not enough, provide a synchronous method flow test device.
The utility model discloses technical scheme of the above-mentioned problem of technique as follows:
a synchronous method flow test device comprises a tested meter, a tested meter signal collector, a control unit, a standard device signal collector and a signal output device, wherein the tested meter is connected with one end of the tested meter signal collector;
the measured meter is a measured flow meter;
the signal collector of the meter to be tested is used for collecting the digital jump signal of the meter to be tested;
the standard device is used for carrying out standard test on the table to be tested and sending out a test signal;
the standard device signal collector collects a test signal sent by a standard device;
the control unit is used for receiving the jump signal of the signal collector of the measured meter and synchronously marking the signal collected by the signal collector of the standard device and the jump signal of the measured meter;
and the signal output device is used for outputting the signals which are collected by the standard device signal collector in the test process and are synchronously marked by the control unit.
Further, the standard device is a standard flowmeter or a standard electronic balance.
Further, the standard device signal collector is a pulse signal collector of a standard flowmeter or a mass signal collector of a standard electronic balance.
Further, the signal output device is a pulse signal output device of a standard flowmeter or a mass signal output device of a standard electronic balance.
The utility model has the advantages that:
through the synchronous method testing device, the marked signal of the standard signal collector at each time is synchronous with the jump of the tested meter, the standard signal data of T periods are tested, whether the time interval of the flow meter at each jump is consistent or not can be tested through the data comparison of each period, and the data accuracy of the flow meter in the testing period can be tested through the total flow data of the flow meter of T periods and the total flow data of the standard. The problem of the reading of etalon than the reading of flowmeter delay in the operation process is solved, the error that brings because the reading delays in the measurement process has been eliminated, the measurement accuracy of flow meter has been improved.
Drawings
Fig. 1 is a schematic view of a synchronous flow rate testing device according to the present invention.
Detailed Description
The invention is described below with reference to the accompanying drawings, and the examples are only for explaining the invention, but not for limiting the scope of the invention.
As shown in fig. 1, a synchronous flow rate testing device includes a tested meter, a tested meter signal collector, a control unit, a standard signal collector, and a signal output device, where the tested meter is connected to one end of the tested meter signal collector, the other end of the tested meter signal collector is connected to the control unit, the control unit is connected to the standard signal collector, the standard signal collector is connected to the standard, and the standard signal collector is connected to the signal output device;
the measured meter is a measured flow meter and can be an electronic flow meter such as a water meter, a heat meter and a gas meter which need to be detected. The signal collector of the meter to be tested is used for collecting digital jump signals of the meter to be tested, and the signal collector of the meter to be tested collects jump signals once when the number of the meter to be tested jumps once and is marked with the jump signals once by the control unit.
The standard device is used for carrying out standard test on the table to be tested and sending out a test signal.
And the standard device signal collector collects the test signal sent by the standard device.
The control unit is used for receiving the jump signal of the signal collector of the measured meter and synchronously marking the signal collected by the signal collector of the standard device and the jump signal of the measured meter.
And the signal output device is used for outputting the signals which are collected by the standard device signal collector in the test process and are synchronously marked by the control unit.
Further, the standard meter is a standard flowmeter or a standard electronic balance, the standard meter signal collector is a pulse signal collector of the standard flowmeter or a mass signal collector of the standard electronic balance, and the signal output device is a pulse signal output device of the standard flowmeter or a mass signal output device of the standard electronic balance.
The utility model discloses the data acquisition cycle T that sets up the measured table signal collector, etalon signal collector are jumped variable n by mark signal's interval, under the incessant test, and the measured table is jumped in succession, and every is jumped variable n through the interval that sets up, and the control unit is to the signal synchronization mark that etalon signal collector gathered. The signal synchronization of the signal collector of the standard device can be marked once when the tested meter jumps once; or the first time and the last time of the jump of the measured meter can be used for synchronously marking the signal of the signal collector of the standard device; or the jump interval n of the measured meter synchronously marks the signal collector of the standard device once; and continuously jumping along with the tested meter until the test period T is finished, finishing marking the signals collected by the standard device signal collector by the control unit, and finishing the test. The marked signal of the standard signal collector at each time is synchronous with the jump of the measured table to form standard marking signal data in T periods, whether the time interval of the flow meter at each jump is consistent or not can be checked through data comparison, and the data accuracy of the flow meter in the test period can be checked through comparing the total flow data of the flow meter in the T periods with the total flow data of the standard.
The above description is only a preferred embodiment of the present invention, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A synchronous method flow test device comprises a tested meter, a tested meter signal collector, a control unit, a standard device signal collector and a signal output device, and is characterized in that the tested meter is connected with one end of the tested meter signal collector, the other end of the tested meter signal collector is connected with the control unit, the control unit is connected with the standard device signal collector, the standard device signal collector is connected with the standard device, and the standard device signal collector is connected with the signal output device;
the measured meter is a measured flow meter;
the signal collector of the meter to be tested is used for collecting the digital jump signal of the meter to be tested;
the standard device is used for carrying out standard test on the table to be tested and sending out a test signal;
the standard device signal collector collects a test signal sent by a standard device;
the control unit is used for receiving the jump signal of the signal collector of the measured meter and synchronously marking the signal collected by the signal collector of the standard device and the jump signal of the measured meter;
and the signal output device is used for outputting the signals which are collected by the standard device signal collector in the test process and are synchronously marked by the control unit.
2. The synchronous flow meter of claim 1, wherein the standard is a standard flow meter or a standard electronic balance.
3. The synchronous flow testing device of claim 2, wherein the standard signal collector is a pulse signal collector of a standard flow meter or a mass signal collector of a standard electronic balance.
4. The synchronous flow testing device of claim 2, wherein the signal output unit is a pulse signal output unit of a standard flowmeter or a mass signal output unit of a standard electronic balance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921943698.5U CN210953042U (en) | 2019-11-12 | 2019-11-12 | Synchronous method flow testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921943698.5U CN210953042U (en) | 2019-11-12 | 2019-11-12 | Synchronous method flow testing device |
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| CN210953042U true CN210953042U (en) | 2020-07-07 |
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| CN201921943698.5U Active CN210953042U (en) | 2019-11-12 | 2019-11-12 | Synchronous method flow testing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113776571A (en) * | 2021-07-30 | 2021-12-10 | 华电电力科学研究院有限公司 | Online calibration method for thermal monitoring instrument of power plant |
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2019
- 2019-11-12 CN CN201921943698.5U patent/CN210953042U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113776571A (en) * | 2021-07-30 | 2021-12-10 | 华电电力科学研究院有限公司 | Online calibration method for thermal monitoring instrument of power plant |
| CN113776571B (en) * | 2021-07-30 | 2023-06-27 | 华电电力科学研究院有限公司 | Online calibration method for thermal monitoring instrument of power plant |
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