CN213842515U - Measuring device for accurately calibrating resistance - Google Patents
Measuring device for accurately calibrating resistance Download PDFInfo
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- CN213842515U CN213842515U CN202023290245.2U CN202023290245U CN213842515U CN 213842515 U CN213842515 U CN 213842515U CN 202023290245 U CN202023290245 U CN 202023290245U CN 213842515 U CN213842515 U CN 213842515U
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Abstract
A measuring device for accurately calibrating resistance belongs to the technical field of resistance measuring devices and comprises a resistance measuring main body, a differential pressure gauge, a collecting card and an industrial personal computer; a high-pressure static pressure acquisition nozzle and a low-pressure static pressure acquisition nozzle are mounted on the pipe wall of the resistance measurement main body; the high-pressure static pressure acquisition nozzle and the low-pressure static pressure acquisition nozzle are both communicated with an internal pipeline of the resistance measurement main body; the high-pressure static pressure acquisition nozzle and the low-pressure static pressure acquisition nozzle are in signal connection with a differential pressure gauge; the differential pressure gauge is in signal connection with the acquisition card; the acquisition card is connected with an industrial personal computer through signals; and the industrial personal computer is in signal connection with the differential pressure gauge. The utility model provides a measuring device of accurate calibration resistance, through on-line measuring and calibration resistance meter, has avoided the dismouting of resistance meter, and is easy and simple to handle, with low costs.
Description
Technical Field
The utility model belongs to the technical field of the resistance measuring device, concretely relates to measuring device of accurate calibration resistance.
Background
The existing resistance testing device needs to be calibrated off-line or to a metering unit, the resistance meters of the same type or higher precision are used for calibration, a correction coefficient is searched, or the correction coefficient is updated in the meter, so that the flow is corrected.
According to the traditional calibration method of the resistance testing device, because the resistance meter is installed and used, the resistance meter needs to be detached before calibration, and then the resistance meter is installed back to the pipeline after calibration, so that the whole steps are too complex.
SUMMERY OF THE UTILITY MODEL
The utility model discloses solve the technical problem that above-mentioned prior art exists, provide a measuring device of accurate calibration resistance.
In order to achieve the above purpose, the present invention adopts the following technical solution.
A measuring device for accurately calibrating resistance comprises a resistance measuring main body, a differential pressure gauge, a collecting card and an industrial personal computer; a high-pressure static pressure acquisition nozzle and a low-pressure static pressure acquisition nozzle are mounted on the pipe wall of the resistance measurement main body; the high-pressure static pressure acquisition nozzle and the low-pressure static pressure acquisition nozzle are both communicated with an internal pipeline of the resistance measurement main body; the high-pressure static pressure acquisition nozzle and the low-pressure static pressure acquisition nozzle are in signal connection with a differential pressure gauge; the differential pressure gauge is in signal connection with the acquisition card; the acquisition card is connected with an industrial personal computer through signals; and the industrial personal computer is in signal connection with the differential pressure gauge.
The resistance measuring main body comprises an upper clamp half part and a lower clamp half part; the medium in the resistance measuring main body sequentially flows through the upper half part and the lower half part of the clamp; the upper half part of the clamp and the lower half part of the clamp are covered to form a sealed cavity, and the cavity is in a spindle shape with two small ends and a large middle part.
The upper half part of the clamp is clamped with the lower half part of the clamp; the high-pressure static pressure acquisition nozzle is arranged on the upper half part of the clamp; the low-pressure static pressure acquisition nozzle is arranged on the lower half part of the clamp.
The utility model provides a measuring device of accurate calibration resistance, through on-line measuring and calibration resistance meter, has avoided the dismouting of resistance meter, and is easy and simple to handle, with low costs.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure, the clamp comprises an upper clamp half part 1, a high-pressure static pressure acquisition nozzle 2, an industrial personal computer 3, a lower clamp half part 4, a low-pressure static pressure acquisition nozzle 5, a differential pressure gauge 6 and an acquisition card 7.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
A measuring device for accurately calibrating resistance comprises a resistance measuring main body, a differential pressure gauge 6, a collecting card 7 and an industrial personal computer 3.
The resistance measuring main body comprises an upper clamp half part 1 and a lower clamp half part 4; the medium in the resistance measuring main body sequentially flows through the upper clamp half part 1 and the lower clamp half part 4; the upper clamp half part 1 and the lower clamp half part 4 are covered to form a sealed cavity, and the cavity is in a spindle shape with two small ends and a large middle part.
The upper clamp half part 1 and the lower clamp half part 4 are clamped; the upper half part 1 of the clamp is provided with a high-pressure static pressure acquisition nozzle 2; and a low-pressure static pressure acquisition nozzle 5 is arranged on the lower half part 4 of the clamp.
The high-pressure static pressure acquisition nozzle 2 and the low-pressure static pressure acquisition nozzle 5 are both communicated with an internal pipeline of the resistance measurement main body; the high-pressure static pressure acquisition nozzle 2 and the low-pressure static pressure acquisition nozzle 5 are both in signal connection with a differential pressure gauge 6; the differential pressure gauge 6 is in signal connection with an acquisition card 7; the acquisition card 7 is in signal connection with the industrial personal computer 3; and the industrial personal computer 3 is in signal connection with a differential pressure gauge 6.
A measuring device for accurately calibrating resistance is suitable for measuring liquid media, and has the following working principle:
1. the resistance measuring main body consists of an upstream clamp and a downstream clamp, and a differential pressure gauge is used for collecting high-low pressure static pressure of the upstream and downstream clamps.
2. The differential pressure gauge collects 4-20mA signals and outputs the signals to the industrial personal computer through a collecting card.
3. And adjusting the signal collected by the differential pressure meter by the industrial personal computer according to the actual resistance, and correspondingly outputting and displaying the calibrated flow value.
The industrial computer adjusts the differential pressure gauge to acquire signals, and for the prior art, for example, the industrial computer adopts RS485 to modify the circuit board parameters of the differential pressure gauge, and reference may be made to the Chinese patent document with application number 201910740175.9.
The present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only for illustrating the principle of the present invention, without departing from the spirit and scope of the present invention, the present invention can also have various changes and improvements, and these changes and improvements all fall into the scope of the claimed invention.
Claims (3)
1. A measuring device for accurately calibrating resistance is characterized by comprising a resistance measuring main body, a differential pressure gauge (6), an acquisition card (7) and an industrial personal computer (3); a high-pressure static pressure acquisition nozzle (2) and a low-pressure static pressure acquisition nozzle (5) are arranged on the pipe wall of the resistance measurement main body; the high-pressure static pressure acquisition nozzle (2) and the low-pressure static pressure acquisition nozzle (5) are both communicated with an internal pipeline of the resistance measurement main body; the high-pressure static pressure acquisition nozzle (2) and the low-pressure static pressure acquisition nozzle (5) are in signal connection with a differential pressure gauge (6); the differential pressure meter (6) is in signal connection with an acquisition card (7); the acquisition card (7) is in signal connection with the industrial personal computer (3); the industrial personal computer (3) is in signal connection with the differential pressure gauge (6).
2. A measuring device for precise calibration of resistance according to claim 1, characterized in that the resistance measuring body comprises a clamp upper half (1), a clamp lower half (4); the medium in the resistance measuring main body sequentially flows through the upper clamp half part (1) and the lower clamp half part (4); the upper clamp half part (1) and the lower clamp half part (4) are covered to form a sealed cavity, and the cavity is in a spindle shape with two small ends and a large middle part.
3. The measuring device for calibrating resistance accurately according to claim 2, wherein the upper clamp half (1) and the lower clamp half (4) are clamped; the high-pressure static pressure acquisition nozzle (2) is arranged on the upper half part (1) of the clamp; and the low-pressure static pressure acquisition nozzle (5) is arranged on the lower half part (4) of the clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023290245.2U CN213842515U (en) | 2020-12-30 | 2020-12-30 | Measuring device for accurately calibrating resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023290245.2U CN213842515U (en) | 2020-12-30 | 2020-12-30 | Measuring device for accurately calibrating resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213842515U true CN213842515U (en) | 2021-07-30 |
Family
ID=77000781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023290245.2U Active CN213842515U (en) | 2020-12-30 | 2020-12-30 | Measuring device for accurately calibrating resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213842515U (en) |
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2020
- 2020-12-30 CN CN202023290245.2U patent/CN213842515U/en active Active
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