CN201765088U - Test calibrating apparatus of portable pressure transmitter - Google Patents
Test calibrating apparatus of portable pressure transmitter Download PDFInfo
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- CN201765088U CN201765088U CN2010202767636U CN201020276763U CN201765088U CN 201765088 U CN201765088 U CN 201765088U CN 2010202767636 U CN2010202767636 U CN 2010202767636U CN 201020276763 U CN201020276763 U CN 201020276763U CN 201765088 U CN201765088 U CN 201765088U
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Abstract
The utility model discloses a test calibrating apparatus of a portable pressure transmitter, which comprises a standard pressure transmitter, an operation processor and a display. The standard pressure transmitter and a detected pressure transmitter are simultaneously used for detecting pressure of the same testing point of a tested object at real time, the operation processor realizes comparison and analysis of two channel pressure signals which are detected by the detected pressure transmitter and the standard pressure transmitter at real time, and correspondingly obtains relation curves of the two channels of pressure signals along with time variation, the display is connected with the operation processor and synchronously and visually displays the relation curves of the two channel pressure signals along with time variation, and the tested object comprises a header pipe capable of detecting internal pressure of the tested object at real time and a pressure pump capable of providing variable pressure for the header pipe. The test calibrating apparatus is reasonable in design, simple in structure, convenient in carrying, simple and convenient in operation and fine in use effect, is high in calibrating precision to the tested pressure transmitter, and can effectively resolve actual problems that a traditional alignment method is high in work load, and an aligned pressure transmitter has higher precision error and the like.
Description
Technical field
The utility model relates to a kind of calibrating installation of pressure unit, especially relates to a kind of portable pressure transmitter test calibrating installation.
Background technology
Traditionally pressure unit is carried out timing signal, all adopt multipoint method to demarcate.The principle that above-mentioned multipoint method is demarcated is to be pressurized to standard pressure generator on the tested pressure unit and the record current value that this moment, tested pressure unit was exported, and in conjunction with corresponding range the current value that is write down is converted into corresponding indicating value simultaneously; Afterwards, increase normal pressure successively gradually, and test and read synchronously tested indicating value pressure unit under the current state by tested pressure unit; After so repeatedly testing repeatedly, calculate and writing down, also needing tested pressure unit to be adjusted to " zero " point and " full journey " tests respectively more again, thereby the workload of practical operation is very bigger, and can produce interlock to the full journey test of tested pressure unit during owing to adjustment indicating value at zero point drifts about, when expiring the journey indicating value, adjustment also can exert an influence equally to zero test, then be difficult to adjust tested pressure unit very accurate, thereby above-mentioned traditional adjusting process not only workload is big, and the trueness error of the pressure unit of institute's adjustment is also bigger.
Summary of the invention
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, a kind of portable pressure transmitter test calibrating installation is provided, it is reasonable in design, simple in structure, be easy to carry and use easy and simple to handle, result of use good, to the calibration accuracy height of tested pressure unit, can effectively solve practical problemss such as the existing workload of traditional adjusting process is big, the trueness error of institute's adjustment pressure unit is bigger.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of portable pressure transmitter test calibrating installation, it is characterized in that: comprise the normal pressure transmitter that simultaneously pressure of same test point on the tested object is detected in real time with tested pressure unit, tested pressure unit and the real-time two-way pressure signal that detects of normal pressure transmitter compared analyze and correspondingly draw the arithmetic processor of the time dependent relation curve of two-way pressure signal and join with arithmetic processor and the time dependent relation curve of two-way pressure signal is carried out the display that shows directly perceived synchronously, described tested pressure unit and normal pressure transmitter all join with arithmetic processor; Described tested object comprises header and the forcing pump of variable pressure can be provided for header, the pressure source of described forcing pump for joining with header and being controlled by arithmetic processor; Described tested pressure unit and normal pressure transmitter are the pressure unit that pressure signal is converted to the corresponding current signal and exports synchronously.
Above-mentioned portable pressure transmitter test calibrating installation, it is characterized in that: also comprise the remote-terminal unit RTU that tested pressure unit and the real-time two-way pressure signal that detects of normal pressure transmitter is uploaded to synchronously arithmetic processor respectively, tested pressure unit and normal pressure transmitter all join with remote-terminal unit RTU, described remote-terminal unit RTU and arithmetic processor joins and itself and arithmetic processor between carry out two-way communication.
Above-mentioned portable pressure transmitter test calibrating installation, it is characterized in that: also comprise the clock circuit that joins with arithmetic processor, and described clock circuit and arithmetic processor are used and form the response speed test cell of the response speed of tested pressure unit being tested calculating.
Above-mentioned portable pressure transmitter test calibrating installation is characterized in that: described forcing pump is hand-held forcing pump.
Above-mentioned portable pressure transmitter test calibrating installation, it is characterized in that: described header is connected to form successively by a plurality of pressure pipings, and connect by distribution joint between adjacent two described pressure pipings, described tested pressure unit and normal pressure transmitter all are laid on the described distribution joint and the two detects the pressure of same test point on the described distribution joint simultaneously.
Above-mentioned portable pressure transmitter test calibrating installation is characterized in that: also comprise respectively the storer and the parameter set unit of joining with arithmetic processor.
Above-mentioned portable pressure transmitter test calibrating installation, it is characterized in that: described arithmetic processor, display, storer and parameter set unit connect to form a complete PC, and described PC is a notebook computer.
Above-mentioned portable pressure transmitter test calibrating installation, it is characterized in that: described normal pressure transmitter, arithmetic processor, display, header and hand-held forcing pump all are laid in the same external shell.
Above-mentioned portable pressure transmitter test calibrating installation, it is characterized in that: described clock circuit is the perpetual calendar clock circuit.
The utility model compared with prior art has the following advantages:
1, simple in structure, reasonable in design, volume is little and input cost is low, it is convenient install to lay, and is easy to carry.
2, use is easy and simple to handle, only need normal pressure transmitter of the present utility model and tested pressure unit are detected in real time to the pressure of same test point on the tested object simultaneously, by arithmetic processor the two-way pressure signal is carried out analyzing and processing then and get final product, workload is very little.
3, result of use is good, and image data point increases greatly, and measuring accuracy improves, and curve contrasts directly perceived and calibrating efficient improves greatly.
4, the practical value height, utilize variable pressure pressure source, and adopt tested pressure unit and normal pressure transmitter under same pressure, to carry out test case, binary channels is with the spot pressure sampling and carry out 2 record indicating values way relatively, utilize computing machine that the two-way pressure signal of being sampled is carried out high precision computation again, direct formation curve comparison diagram, the sampled value of tested transmitter and normal pressure transmitter is directly contrasted, error intuitive display and sampling number increase greatly, the linear error and the drift error that can directly reflect tested pressure unit, overall process writing time--pressure curve, and can calculate the device parameters such as response speed of tested pressure unit.
In sum, the utility model is reasonable in design, simple in structure, be easy to carry and use easy and simple to handle, result of use good, to the calibration accuracy height of tested pressure unit, can effectively solve practical problemss such as the existing workload of traditional adjusting process is big, the trueness error of institute's adjustment pressure unit is bigger.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is a principle of work block diagram of the present utility model.
Description of reference numerals:
| 1-header; | 2-PC; | 3-tested pressure unit; |
| 4-normal pressure transmitter; | 5-arithmetic processor; | 6-remote-terminal unit RTU; |
| 7-display; | 8-perpetual calendar clock circuit; | 9-hand-held forcing pump; |
| 10-storer; | 11-parameter set unit. | ? |
Embodiment
As shown in Figure 1, the utility model comprises the normal pressure transmitter 4 that simultaneously pressure of same test point on the tested object is detected in real time with tested pressure unit 3, tested pressure unit 3 and the normal pressure transmitter 4 real-time two-way pressure signals that detect are compared analyze and correspondingly draw the arithmetic processor 5 of the time dependent relation curve of two-way pressure signal and join with arithmetic processor 5 and the time dependent relation curve of two-way pressure signal is carried out the display 7 that shows directly perceived synchronously, described tested pressure unit 3 and normal pressure transmitter 4 all join with arithmetic processor 5.Described tested object comprises header 1 and the forcing pump of variable pressure can be provided for header 1, the pressure source of described forcing pump for joining with header 1 and being controlled by arithmetic processor 5.Described tested pressure unit 3 and normal pressure transmitter 4 are the pressure unit that pressure signal is converted to the corresponding current signal and exports synchronously.In the actual use, can detect in real time by the internal pressure of pressure unit to described header 1.
In the present embodiment, the utility model also comprises the remote-terminal unit RTU6 that tested pressure unit 3 and the normal pressure transmitter 4 real-time two-way pressure signals that detect is uploaded to synchronously arithmetic processor 5 respectively, tested pressure unit 3 and normal pressure transmitter 4 all join with remote-terminal unit RTU6, described remote-terminal unit RTU6 and arithmetic processor 5 join and itself and arithmetic processor 5 between carry out two-way communication.Simultaneously, the utility model also comprises the clock circuit that joins with arithmetic processor 5, and described clock circuit and arithmetic processor 5 are used and form the response speed test cell of the response speed of tested pressure unit 3 being tested calculating.
In the present embodiment, described forcing pump is hand-held forcing pump 9.Described header 1 is connected to form successively by a plurality of pressure pipings, and connect by distribution joint between adjacent two described pressure pipings, described tested pressure unit 3 and normal pressure transmitter 4 all are laid on the described distribution joint and the two detects the pressure of same test point on the described distribution joint simultaneously.Simultaneously, the utility model also comprises respectively the storer 10 and the parameter set unit 11 of joining with arithmetic processor 5.
Described arithmetic processor 5, display 7, storer 10 and parameter set unit 11 connect to form a complete PC 2, and described PC 2 is a notebook computer.Described normal pressure transmitter 4, arithmetic processor 5, display 7, header 1 and hand-held forcing pump 9 all are laid in the same external shell.Described clock circuit is a perpetual calendar clock circuit 8.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of technical solutions of the utility model according to the utility model technical spirit.
Claims (9)
1. a portable pressure transmitter is tested calibrating installation, it is characterized in that: comprise the normal pressure transmitter (4) that simultaneously pressure of same test point on the tested object is detected in real time with tested pressure unit (3), tested pressure unit (3) and the real-time two-way pressure signal that detects of normal pressure transmitter (4) compared analyze and correspondingly draw the arithmetic processor (5) of the time dependent relation curve of two-way pressure signal and join with arithmetic processor (5) and the time dependent relation curve of two-way pressure signal is carried out the display (7) that shows directly perceived synchronously, described tested pressure unit (3) and normal pressure transmitter (4) all join with arithmetic processor (5); Described tested object comprises header (1) and the forcing pump of variable pressure can be provided for header (1), the pressure source of described forcing pump for joining with header (1) and being controlled by arithmetic processor (5); Described tested pressure unit (3) and normal pressure transmitter (4) are the pressure unit that pressure signal is converted to the corresponding current signal and exports synchronously.
2. according to the described portable pressure transmitter test of claim 1 calibrating installation, it is characterized in that: also comprise the remote-terminal unit RTU(6 that tested pressure unit (3) and the real-time two-way pressure signal that detects of normal pressure transmitter (4) is uploaded to synchronously arithmetic processor (5) respectively), tested pressure unit (3) and normal pressure transmitter (4) all with remote-terminal unit RTU(6) join described remote-terminal unit RTU(6) and arithmetic processor (5) joins and itself and arithmetic processor (5) between carry out two-way communication.
3. according to claim 1 or 2 described portable pressure transmitter test calibrating installations, it is characterized in that: also comprise the clock circuit that joins with arithmetic processor (5), and described clock circuit and arithmetic processor (5) are used and form the response speed test cell of the response speed of tested pressure unit (3) being tested calculating.
4. according to claim 1 or 2 described portable pressure transmitter test calibrating installations, it is characterized in that: described forcing pump is hand-held forcing pump (9).
5. according to claim 1 or 2 described portable pressure transmitter test calibrating installations, it is characterized in that: described header (1) is connected to form successively by a plurality of pressure pipings, and connect by distribution joint between adjacent two described pressure pipings, described tested pressure unit (3) and normal pressure transmitter (4) all are laid on the described distribution joint and the two detects the pressure of same test point on the described distribution joint simultaneously.
6. according to claim 1 or 2 described portable pressure transmitters test calibrating installations, it is characterized in that: also comprise respectively the storer (10) and the parameter set unit (11) of joining with arithmetic processor (5).
7. according to the described portable pressure transmitter test of claim 6 calibrating installation, it is characterized in that: described arithmetic processor (5), display (7), storer (10) and parameter set unit (11) connect to form a complete PC (2), and described PC (2) is a notebook computer.
8. according to the described portable pressure transmitter test of claim 4 calibrating installation, it is characterized in that: described normal pressure transmitter (4), arithmetic processor (5), display (7), header (1) and hand-held forcing pump (9) all are laid in the same external shell.
9. according to the described portable pressure transmitter test of claim 3 calibrating installation, it is characterized in that: described clock circuit is perpetual calendar clock circuit (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202767636U CN201765088U (en) | 2010-07-30 | 2010-07-30 | Test calibrating apparatus of portable pressure transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202767636U CN201765088U (en) | 2010-07-30 | 2010-07-30 | Test calibrating apparatus of portable pressure transmitter |
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| Publication Number | Publication Date |
|---|---|
| CN201765088U true CN201765088U (en) | 2011-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010202767636U Expired - Fee Related CN201765088U (en) | 2010-07-30 | 2010-07-30 | Test calibrating apparatus of portable pressure transmitter |
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| CN (1) | CN201765088U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776956A (en) * | 2014-01-15 | 2015-07-15 | 上海理工大学 | Test device for pressure sensors |
| CN104819805A (en) * | 2015-04-30 | 2015-08-05 | 郑州荣奇热电能源有限公司 | Automatic pressure verification device |
| CN106153250A (en) * | 2016-08-31 | 2016-11-23 | 重庆四联测控技术有限公司 | The input signal automated calibration system of a kind of pressure transmitter and method |
| CN107449544A (en) * | 2017-06-22 | 2017-12-08 | 中车青岛四方机车车辆股份有限公司 | A kind of pressure gauge and method for testing pressure |
| CN110672264A (en) * | 2019-10-09 | 2020-01-10 | 武汉飞恩微电子有限公司 | Detection system and detection method for pressure sensor of micro-electro-mechanical system |
-
2010
- 2010-07-30 CN CN2010202767636U patent/CN201765088U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776956A (en) * | 2014-01-15 | 2015-07-15 | 上海理工大学 | Test device for pressure sensors |
| CN104819805A (en) * | 2015-04-30 | 2015-08-05 | 郑州荣奇热电能源有限公司 | Automatic pressure verification device |
| CN106153250A (en) * | 2016-08-31 | 2016-11-23 | 重庆四联测控技术有限公司 | The input signal automated calibration system of a kind of pressure transmitter and method |
| CN107449544A (en) * | 2017-06-22 | 2017-12-08 | 中车青岛四方机车车辆股份有限公司 | A kind of pressure gauge and method for testing pressure |
| CN110672264A (en) * | 2019-10-09 | 2020-01-10 | 武汉飞恩微电子有限公司 | Detection system and detection method for pressure sensor of micro-electro-mechanical system |
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| Date | Code | Title | Description |
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| 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: 20110316 Termination date: 20120730 |