CN114018475A - Full-automatic pressure gauge calibrating device - Google Patents
Full-automatic pressure gauge calibrating device Download PDFInfo
- Publication number
- CN114018475A CN114018475A CN202111373814.6A CN202111373814A CN114018475A CN 114018475 A CN114018475 A CN 114018475A CN 202111373814 A CN202111373814 A CN 202111373814A CN 114018475 A CN114018475 A CN 114018475A
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- pressure
- pressure gauge
- servo motor
- calibration
- controller
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- 238000000034 method Methods 0.000 claims abstract description 22
- 230000008569 process Effects 0.000 claims abstract description 20
- 230000003993 interaction Effects 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 4
- 238000009530 blood pressure measurement Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
- G01L27/002—Calibrating, i.e. establishing true relation between transducer output value and value to be measured, zeroing, linearising or span error determination
- G01L27/005—Apparatus for calibrating pressure sensors
Abstract
The invention provides a full-automatic pressure gauge calibration device which comprises a pressure loading device driven by a servo motor, a servo motor controller, a pressure controller, a data acquisition system, a human-computer interaction system and a report printing system. In the traditional pressure calibration method, pressure loading, data recording and the like are finished manually, the efficiency is low, and the influence of human factors can be caused. In order to solve the problems, the full-automatic pressure gauge calibration device capable of automatically completing all calibration processes of the pressure gauge, automatically acquiring and analyzing data and issuing a test report is provided, so that the working efficiency is greatly improved, and errors caused by human factors are avoided.
Description
Technical Field
The invention relates to the technical field of pressure measurement and calibration, in particular to an automatic calibration device for a pressure gauge.
Background
Pressure is one of the main parameters that need to be monitored/measured in the industrial process, the pressure measurement directly relates to each link of the industrial process including test, manufacture, test, etc., whether the pressure measurement is accurate or not directly relates to the reliability, stability, operation accuracy, result validity, etc. of the industrial process, especially along with the deepening of the intelligent process of the industrial manufacture, the accuracy (precision) of the pressure measurement will not only affect the yield and the reliability of the product on the result, but also will affect the general performance and even feasibility of the manufacturing system.
In order to ensure the accuracy of pressure measurement, the pressure measurement equipment needs to be calibrated.
The traditional pressure calibration method takes a calibrated pressure gauge as an example, a pressure source capable of providing pressure is needed, a pressure gauge or a pressure sensor with higher precision grade than the calibrated pressure gauge is used as a standard source, the pressure source is used for providing pressure for the calibrated pressure gauge and a standard pressure gauge at the same time, after the pressure is stable, the indicated values of the calibrated pressure gauge and the standard pressure gauge are compared and recorded, the processes are repeatedly carried out on a plurality of metering points in the range of the calibrated pressure gauge of the pressure gauge, the calibration data of the pressure gauge can be obtained, the calibrated pressure gauge can be calibrated based on the data, the processes comprise loading of the pressure, the recording of the data and the like are finished manually, the efficiency is low, and the problem of the data in the calibration process can also be caused by artificial uncertain factors.
In order to solve the above problems, with the continuous progress of the prior art, a fully automatic pressure calibration device is proposed, which can automatically complete all calibration processes of the pressure gauge, automatically collect and analyze data, and issue a test report.
The high-precision full-automatic pressure gauge calibration device comprises a pressure loading device driven by a servo motor, a servo motor controller, a pressure controller, a data acquisition and processing system, a human-computer interaction system and a report printing device. The servo motor controller is used for accurately controlling the position and the speed of the servo motor; the pressure controller receives a pressure signal of a standard pressure gauge or a pressure sensor, generates a certain motion control signal through a specific control algorithm, and transmits the certain motion control signal to the servo motor controller to drive the servo motor to move so as to generate and maintain oil pressure with certain precision; the data acquisition system is used for acquiring indicating value data of the pressure gauge to be calibrated and the standard pressure gauge, processing the indicating value data and generating a specific calibration report file; the human-computer interaction system is used for receiving a control instruction of an operator, transmitting a control signal to the pressure controller, receiving control process information transmitted from the pressure controller and displaying the control process information to the operator through the display system; and the report printing system is used for receiving and printing the calibration report transmitted by the data acquisition system.
Disclosure of Invention
The invention aims to provide a high-precision full-automatic pressure gauge calibrating device aiming at the problems or the defects in the prior art.
A full-automatic pressure gauge calibration device comprises
A pressure loading device driven by a servo motor;
a servo motor controller;
a pressure controller;
a data acquisition system;
a human-computer interaction system;
a report printing system.
The servo motor driven pressure loading device is characterized in that a main body of the servo motor driven pressure loading device is a plunger cylinder, a certain pressure effect can be generated on oil pressure through the reciprocating motion of a plunger rod piston, the reciprocating motion of a piston rod of a plunger rod is generated by a lead screw nut motion mechanism driven by the servo motor, and the plunger rod can be controlled to generate a certain pressure through controlling the motion of the servo motor; meanwhile, the sealed cavity of the plunger rod is connected with the pressure gauge to be calibrated and the standard pressure gauge and used for transmitting pressure to the pressure gauge to be calibrated and the standard pressure gauge.
The servo motor driver is used for controlling the position and the speed of the servo motor, the control on the speed can influence the time used in the calibration process, and the control on the position can directly influence the accuracy and the stability of the pressure source.
The pressure controller can accurately control the pressure by the servo controller, and can generate a control signal through a certain control algorithm after receiving a pressure signal from the standard pressure gauge and the pressure gauge to be calibrated and transmit the control signal to the servo controller to control the servo motor to drive the plunger rod to generate high-precision oil pressure.
The data acquisition system can acquire and record indicating values of the standard pressure gauge and the calibrated pressure gauge, compare the indicating values of the calibrated pressure gauge and the standard pressure gauge, fit a measurement curve of the calibrated pressure gauge, generate calibration parameters and output a calibration report with a specific format.
On one hand, the man-machine interaction system can acquire process information and fault or alarm information of pressure control through the pressure controller and display the process information and the fault or alarm information to an operator through the display device. And on the other hand, the pressure calibration device can receive an operation instruction of an operator to control the pressure calibration process.
The report printing system is used for receiving the calibration report with a specific format transmitted by the data acquisition system and printing the calibration report.
Has the advantages that:
1. in the calibration operation process, an operator only needs to set calibration process parameters in advance in a human-computer interaction system, one-key full-automatic operation can be performed on the calibration process, the operator does not need to participate in the full operation, and pressure loading, data recording processing and report issuing can be performed fully automatically.
2. During the calibration operation, errors caused by human factors in the calibration process are avoided.
Drawings
Fig. 1 is a schematic diagram of a structure of a full-automatic pressure gauge calibration device.
Detailed Description
The specific examples set forth in the detailed description and other matters in the specification are intended to be illustrative of the invention
The embodiments are described and illustrated, and unless otherwise expressly stated, such description and illustration are not to be construed as limiting the scope of the invention but is to be understood as the broadest feasible scope consistent with the common knowledge of those skilled in the art, including all readily contemplated and feasible modifications, permutations, and equivalents.
The embodiments can be combined or combined as practicable based on the common knowledge of the person skilled in the art
And (5) performing sub-replacement.
A full-automatic pressure gauge calibration device comprises a pressure loading device driven by a servo motor, a servo motor controller, a pressure controller, a data acquisition system, a man-machine interaction system and a report printing system. Before the pressure gauge calibration operation flow is carried out, firstly, a standard pressure gauge and a pressure gauge to be calibrated are installed on a pressure gauge interface of a plunger cylinder, then, an air release hole is opened, manual air release is carried out, air release is finished, and system initialization is finished. An operator sets calibration parameters such as calibration time, calibration range and point positions on the man-machine interaction system, and then starts the calibration system to work. The pressure controller and the servo motor controller can control the servo motor to move to a certain position to compress oil liquid to generate pressure of a set point position, the pressure is kept for a period of time, the data acquisition system can record pressure data of the calibrated sensor and the standard sensor, after the recording is finished, the next point position calibration work is continued, and the calibration process is the same as that of the point position calibration work. When all point positions are calibrated, the system controls the stepping motor to return to the original point, the plunger rod is decompressed, the data acquisition system generates a calibration report with a fixed format, and an operator can finish the output of the calibration report through the report printing system.
Claims (2)
1. A full-automatic pressure gauge calibrating device comprises
A pressure loading device driven by a servo motor;
a servo motor controller;
a pressure controller;
a data acquisition system;
a human-computer interaction system;
a report printing system.
2. The calibration device for the full automatic pressure gauge according to claim 1, wherein: the servo motor driven pressure loading device is characterized in that a plunger cylinder is adopted as a main body, a piston rod of a plunger rod reciprocates through a lead screw nut motion mechanism driven by the servo motor, and meanwhile, a sealed cavity of the plunger rod is connected with a pressure gauge to be calibrated and a standard pressure gauge and is used for transmitting pressure to the pressure gauge to be calibrated and the standard pressure gauge. The pressure controller receives pressure signals from the standard pressure gauge and the pressure gauge to be calibrated, generates control signals through a certain control algorithm and transmits the control signals to the servo controller to control the servo motor to drive the plunger rod to generate high-precision oil pressure. The data acquisition system can acquire and record the indicating values of the standard pressure gauge and the calibrated pressure gauge. On one hand, the man-machine interaction system can acquire process information and fault or alarm information of pressure control through the pressure controller and display the process information and the fault or alarm information to an operator through the display device. And on the other hand, the pressure calibration device can receive an operation instruction of an operator to control the pressure calibration process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111373814.6A CN114018475A (en) | 2021-11-19 | 2021-11-19 | Full-automatic pressure gauge calibrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111373814.6A CN114018475A (en) | 2021-11-19 | 2021-11-19 | Full-automatic pressure gauge calibrating device |
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| Publication Number | Publication Date |
|---|---|
| CN114018475A true CN114018475A (en) | 2022-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111373814.6A Pending CN114018475A (en) | 2021-11-19 | 2021-11-19 | Full-automatic pressure gauge calibrating device |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115077789A (en) * | 2022-08-17 | 2022-09-20 | 南京市计量监督检测院 | Simply supported force value sensor magnitude traceability device and calibration method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201917436U (en) * | 2010-11-24 | 2011-08-03 | 桐昆集团浙江恒盛化纤有限公司 | Manometer detector |
| CN104729793A (en) * | 2013-12-19 | 2015-06-24 | 珠海格力电器股份有限公司 | Calibration device for pressure meter |
| CN208736608U (en) * | 2018-09-12 | 2019-04-12 | 内蒙古自治区计量测试研究院 | A kind of intelligence multichannel verification system |
-
2021
- 2021-11-19 CN CN202111373814.6A patent/CN114018475A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201917436U (en) * | 2010-11-24 | 2011-08-03 | 桐昆集团浙江恒盛化纤有限公司 | Manometer detector |
| CN104729793A (en) * | 2013-12-19 | 2015-06-24 | 珠海格力电器股份有限公司 | Calibration device for pressure meter |
| CN208736608U (en) * | 2018-09-12 | 2019-04-12 | 内蒙古自治区计量测试研究院 | A kind of intelligence multichannel verification system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115077789A (en) * | 2022-08-17 | 2022-09-20 | 南京市计量监督检测院 | Simply supported force value sensor magnitude traceability device and calibration method |
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