CN210198509U - Synchronous measuring device for calibrating fuel flow meter - Google Patents
Synchronous measuring device for calibrating fuel flow meter Download PDFInfo
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- CN210198509U CN210198509U CN201921128638.8U CN201921128638U CN210198509U CN 210198509 U CN210198509 U CN 210198509U CN 201921128638 U CN201921128638 U CN 201921128638U CN 210198509 U CN210198509 U CN 210198509U
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Abstract
A synchronous measuring device for calibrating a fuel flow meter comprises: the system comprises an oil tank, an adjusting device, a standard flowmeter, a calibrated flowmeter, a standard timer, a left searchlight, a right searchlight, a high-speed camera, a data storage card and terminal output equipment; the oil tank is connected with the adjusting device; the adjusting device is connected with the standard flowmeter; the standard flowmeter is connected with the calibrated fuel oil flowmeter; the calibrated fuel flowmeter is connected with the fuel tank. A left searchlight and a high-speed camera are arranged in front of the standard flowmeter; and the standard flowmeter is communicated with the left searchlight and the high-speed camera. A standard timer, a right searchlight and terminal output equipment are arranged in front of the calibrated fuel flowmeter; the calibrated fuel flow meter is communicated with the standard timer, the right searchlight and the high-speed camera. The high-speed camera is internally provided with a data storage card and is connected with the terminal output equipment. The device has compact structure, convenient operation and convenient carrying. The accuracy and the reliability of flow indicating value errors and time errors of the fuel oil flowmeter are improved.
Description
Technical Field
The utility model belongs to measurement calibration field relates to a synchronous measurement device who is used for providing accurate data during instrument and equipment calibration, especially relates to a motor vehicle detects with providing the synchronous measurement device of accurate flow, time data when burning oil flow meter calibration.
Background
In the field of motor vehicle detection, according to the requirements of the Ministry of transportation standard JT/T711 and 2016 (limit and measurement method for fuel consumption of commercial passenger cars) and JT/T719 and 2016 (limit and measurement method for fuel consumption of commercial trucks), the fuel consumption of commercial vehicles is one of important indexes for examining the economic performance of the whole vehicle and determining whether the commercial vehicles can obtain operation permission. The fuel flowmeter is a detection device for measuring the fuel consumption of vehicles, and is suitable for JJF (automobile) 06 calibration standards of fuel flowmeters.
At present, various types of fuel flow meters for detecting the oil consumption of motor vehicles adopt a volume method and a mass method when flow calibration is carried out. The volumetric method is a method for calculating the error of a flow indicating value by measuring the volume of fuel flowing into a measuring container within a certain time, and the calibration method has personnel reading error and has higher requirement on the dryness of the measuring container; the mass method is a method for measuring the fuel density and further obtaining the flow indicating value error by weighing the fuel flowing into a metering container within a certain time, and the calibration method belongs to indirect measurement and increases the expansion uncertainty of the measurement result. In the time calibration, a synchronization device is used for simultaneously starting a calibrated flowmeter and a stopwatch, and direct measurement is carried out to obtain a time error. Therefore, the synchronous measuring device for calibrating the fuel flow meter, which can overcome the defects and meet the calibration requirement, is provided, the measurement accuracy of the flow indicating value error and the time error of the fuel flow meter can be ensured, and the calibration work efficiency is effectively improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to the above-mentioned problem, provide a fuel flowmeter calibrates and uses synchronous measuring device, can measure fuel flowmeter's flow indicating value, time accurately, guarantee to obtain fuel flowmeter flow indicating value error, time error's accuracy, credibility.
The utility model provides a, a fuel flow meter measuring device for calibration, include: the system comprises an oil tank, an adjusting device, a standard flowmeter, a calibrated flowmeter, a standard timer, a left searchlight, a right searchlight, a high-speed camera, a data storage card, a data line, terminal output equipment and an oil way; one end of the oil tank is connected with one end of the adjusting device through an oil way; the other end of the adjusting device is connected with one end of the standard flowmeter through an oil way; the other end of the standard flowmeter is connected with one end of the calibrated fuel flowmeter through an oil way; the other end of the calibrated fuel flow meter is connected with the other end of the oil tank through an oil way.
A left searchlight and a high-speed camera are arranged in front of the standard flowmeter; and the standard flowmeter is communicated with the left searchlight and the high-speed camera.
A standard timer, a right searchlight and a terminal output device are arranged in front of the calibrated fuel flow meter; the calibrated fuel flow meter is communicated with the standard timer, the right searchlight and the high-speed camera.
The high-speed camera is internally provided with a data storage card and is connected with the terminal output equipment through a data line.
The utility model adopts the above technical scheme can obtain following beneficial effect after: the utility model discloses compact structure, convenient operation, portable. When the fuel flow meter is used for calibrating the motor vehicle detection, the flow indicating value and the time indicating value can be conveniently and accurately obtained on site through direct measurement, and then the flow indicating value error and the time error of the fuel flow meter are obtained through calculation, so that the working efficiency is effectively improved, and the accuracy and the reliability of the flow indicating value error and the time error of the fuel flow meter are greatly improved.
Drawings
Fig. 1 is a schematic structural diagram of a measuring device for calibrating a fuel flow meter of the present invention.
In the figure: 1. an oil tank; 2. an adjustment device; 3. a standard flow meter; 4. a calibrated fuel flow meter; 5. a standard timer; 6. a left searchlight; 7. a right searchlight; 8. a high-speed camera; 9. a data storage card; 10. a data line; 11. a terminal output device; 12. an oil passage.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples. As shown in fig. 1, a synchronous measuring device for calibrating a fuel flow meter includes: the system comprises an oil tank 1, an adjusting device 2, a standard flowmeter 3, a calibrated flowmeter 4, a standard timer 5, a left searchlight 6, a right searchlight 7, a high-speed camera 8, a data storage card 9, a data line 10, a terminal output device 11 and an oil way 12.
One end of the oil tank 1 is connected with one end of the adjusting device 2 through an oil path 12; the other end of the adjusting device 2 is connected with one end of the standard flowmeter 3 through an oil way 12; the other end of the standard flowmeter 3 is connected with one end of the calibrated flowmeter 4 through an oil way 12; the other end of the calibrated flowmeter 4 is connected with the other end of the oil tank 1 through an oil way 12; a standard timer 5 is placed right before the flow meter 4 to be calibrated; a left searchlight 6 is arranged in front of the standard flowmeter 3; a right searchlight 7 is arranged in front of the flow meter 4 to be calibrated; a high-speed camera 8 is arranged in the middle of the left searchlight 6 and the right searchlight 7; a high-speed camera 8 is provided with a large-capacity data storage card 9 therein and is connected to a terminal device 11 through a data line 10.
According to the installation mode, the distance between the standard flowmeter 3 and the calibrated fuel flowmeter 4 is shortened as much as possible during installation; the distances between the left searchlight 6 and the right searchlight 7 and the standard flowmeter 3 and the calibrated fuel flowmeter 4 are appropriately adjusted so as to obtain clear video.
As shown in figure 1, when the utility model is used for flow calibration, the valve of the oil tank 1 is opened, the standard flowmeter 3 is opened, and the flow meter is calibrated4, the flow measurement state is accumulated by the power supply, the flow velocity of fuel oil flowing out of the oil tank 1 is stable by the adjusting device 2, the left searchlight 6 is turned on, the light source is supplemented by the right searchlight 7, the high-speed camera 8 is turned on, the accumulated flow of the standard flowmeter 3 and the corrected flowmeter 4 in a period of time (about 10-20 seconds) is recorded, recorded contents are stored in the data storage card 9 in time, the high-speed camera 8 is connected with the terminal device 11 through the data line 10, and the accumulated flow Q of the standard flowmeter in the same period of time is obtained through the terminal device 11 after the measurement is finishedSign boardAnd the accumulated flow Q of the corrected flowmeterQuiltThereby obtaining the flow indicating value error delta through calculationQ。
In the formula: qQuilt-the cumulative fuel consumption, L, of the check points indicated by the check meter;
Qsign board-detecting the cumulative fuel consumption, L, indicated by the point standard flow meter;
δQ-the detected point is corrected for flow indication error,%, of the fuel flow meter.
As shown in fig. 1, when the utility model is used for time calibration, the power supply of the calibrated flowmeter 4 is firstly turned on to carry out the time measurement state, and then the start button of the standard timer 5 is pressed to start timing; and (3) turning on a supplementary light source of a right searchlight 7, starting a high-speed camera 8 to photograph the standard timer 5 and the corrected fuel flowmeter 4 to obtain initial values of the tstart 1 and the tstart 1, and after a period of time (about 10 seconds), photographing the standard timer 5 and the corrected fuel flowmeter 4 to obtain end values of the tstart 2 and the tstart 2, so that a time error delta t is obtained through calculation.
In the formula: t 1- -the indication of the standard timer at the beginning of a period of time, s;
t-mark 2-the indication, s, of the standard timer at the end of a period of time;
t is 1-an indication, s, of the calibrated fuel flow meter at the beginning of a period of time;
t is 2- -the indication, s, of the calibrated fuel flow meter at the end of a period of time;
Δ t- -time error of the calibrated fuel flow meter, s.
The utility model discloses compact structure, convenient operation, portable. The working efficiency is effectively improved, and the accuracy and the reliability of the flow indicating value error and the time indicating value error of the fuel flow meter are greatly improved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and scope of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A synchronous measuring device for calibrating a fuel flow meter comprises: the system comprises an oil tank (1), an adjusting device (2), a standard flowmeter (3), a calibrated fuel flowmeter (4), a standard timer (5), a left searchlight (6), a right searchlight (7), a high-speed camera (8), a data storage card (9), a data line (10), terminal output equipment (11) and an oil way (12); the method is characterized in that: one end of the oil tank (1) is connected with one end of the adjusting device (2) through an oil way (12); the other end of the adjusting device (2) is connected with one end of the standard flowmeter (3) through an oil way (12); the other end of the standard flowmeter (3) is connected with one end of the calibrated fuel flowmeter (4) through an oil way (12); the other end of the calibrated fuel flow meter (4) is connected with the other end of the oil tank (1) through an oil path (12).
2. The synchronous measuring device for calibrating the fuel flow meter according to claim 1, wherein: a left searchlight (6) and a high-speed camera (8) are arranged in front of the standard flowmeter (3); the standard flowmeter (3) is communicated with the left searchlight (6) and the high-speed camera (8).
3. The synchronous measuring device for calibrating the fuel flow meter according to claim 1, wherein: a standard timer (5), a right searchlight (7) and a terminal output device (11) are arranged in front of the calibrated fuel flow meter (4); the calibrated fuel flow meter (4) is communicated with a standard timer (5), a right searchlight (7) and a high-speed camera (8).
4. The synchronous measuring device for calibrating the fuel flow meter according to claim 1, wherein: the high-speed camera (8) is internally provided with a data storage card (9), and the high-speed camera (8) is connected with a terminal output device (11) through a data line (10).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921128638.8U CN210198509U (en) | 2019-07-18 | 2019-07-18 | Synchronous measuring device for calibrating fuel flow meter |
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| CN201921128638.8U CN210198509U (en) | 2019-07-18 | 2019-07-18 | Synchronous measuring device for calibrating fuel flow meter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111623856A (en) * | 2020-06-19 | 2020-09-04 | 安东仪器仪表检测有限公司 | Online in-situ calibration method and device for natural gas ultrasonic flowmeter |
| CN116698163A (en) * | 2023-07-31 | 2023-09-05 | 宁德时代新能源科技股份有限公司 | Method and device for calibrating flowmeter |
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2019
- 2019-07-18 CN CN201921128638.8U patent/CN210198509U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111623856A (en) * | 2020-06-19 | 2020-09-04 | 安东仪器仪表检测有限公司 | Online in-situ calibration method and device for natural gas ultrasonic flowmeter |
| CN116698163A (en) * | 2023-07-31 | 2023-09-05 | 宁德时代新能源科技股份有限公司 | Method and device for calibrating flowmeter |
| CN116698163B (en) * | 2023-07-31 | 2024-01-12 | 宁德时代新能源科技股份有限公司 | Method and device for calibrating flowmeter |
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