CN103674329A - Calibration system for temperature transmitter - Google Patents
Calibration system for temperature transmitter Download PDFInfo
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- CN103674329A CN103674329A CN201310750833.5A CN201310750833A CN103674329A CN 103674329 A CN103674329 A CN 103674329A CN 201310750833 A CN201310750833 A CN 201310750833A CN 103674329 A CN103674329 A CN 103674329A
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Abstract
The invention provides a calibration system for a temperature transmitter. The calibration system for the temperature transmitter comprises a resistor array, a signal generator, a relay array and a processor, wherein the processor can control the relay array to connect the temperature transmitter to be calibrated with the resistor array or the signal generator, calculate a coefficient value in a resistor calibration mode and a thermocouple calibration mode, then write the coefficient value in the temperature transmitter to be calibrated, and finally complete calibration. The calibration system for the temperature transmitter needs no manual operation of operators, thereby solving the problem of low working efficiency of manual calibration method.
Description
Technical field
The application relates to sensor technical field, more particularly, relates to a kind of calibration system of temperature transmitter.
Background technology
Temperature transmitter must be demarcated before dispatching from the factory, need operating personnel to pass through manual by different resistance or different magnitude of voltage input temp transmitters, according to its output valve, calculate calibration coefficient, then, by calibration coefficient input temp transmitter, work efficiency is lower.
Summary of the invention
In view of this, the application provides a kind of calibration system of temperature transmitter, for temperature transmitter is demarcated, to solve the lower problem of artificial scaling method work efficiency.
To achieve these goals, the existing scheme proposing is as follows:
A calibration system for temperature transmitter, comprising:
Electric resistance array, comprises a plurality of resistance;
Signal generator, for exporting millivolt signal;
Relay array, be connected with described electric resistance array, described signal generator, temperature transmitter to be calibrated respectively, for according to control command, the different resistance of described a plurality of resistance being connected with described temperature transmitter, or described signal generator is connected with described temperature transmitter;
Processor, be connected with described electric resistance array, described signal generator, described relay array, described temperature transmitter respectively, be used for exporting described control command, and according to the change number of delivering letters of described temperature transmitter output with described millivolt signal or according to the resistance of the resistance being connected with described temperature transmitter and the described change number of delivering letters design factor value, and described coefficient value is write to described temperature transmitter.
Preferably, the resistance of described a plurality of resistance comprises 0 ohm, 15 ohm, 40 ohm, 70 ohm, 140 ohm, 390 ohm, 800 ohm or 3900 ohm.
Preferably, described signal generator is High Precision Multimeter.
Preferably, described relay array comprises 20 relays.
Preferably, described processor comprises:
Control port, for exporting described control command;
The first port, for receiving described millivolt signal;
The second port, for receiving described resistance;
The 3rd port, for receiving the described change number of delivering letters;
Output port, for outputing to described temperature transmitter by described coefficient value.
Preferably, described control port is arranged on the PCI slot of described processor.
Preferably, the magnitude of voltage of the supply voltage of described control port is+5 volts.
Preferably, described the first port is GPIB millivolt signal acquisition interface.
Preferably, described the second port is GPIB electrical resistance collection interface.
Preferably, described output port is USB port.
From technique scheme, can find out, the calibration system of the temperature transmitter that the application provides comprises electric resistance array, signal generator, relay array and processor, processor can be connected temperature transmitter to be calibrated by pilot relay array with electric resistance array or signal generator, and design factor value under resistance calibration pattern and under thermopair calibration mode, then this coefficient value is write to temperature transmitter to be calibrated, finally complete demarcation.Wherein hand-manipulated without operating personnel, thus the lower problem of artificial scaling method work efficiency can be solved.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiment of the application, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural drawing of the calibration system of a kind of temperature transmitter that Fig. 1 provides for the embodiment of the present application;
The another kind of structural drawing of the calibration system of the temperature transmitter that Fig. 2 provides for the embodiment of the present application;
The two-wire system that Fig. 3 provides for the embodiment of the present application is demarcated the wiring diagram of state;
The three-wire system that Fig. 4 provides for the embodiment of the present application is demarcated the wiring diagram of state;
The four-wire system that Fig. 5 provides for the embodiment of the present application is demarcated the wiring diagram of state.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only the application's part embodiment, rather than whole embodiment.Embodiment based in the application, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the application's protection.
Embodiment mono-
The structural drawing of the calibration system of a kind of temperature transmitter that Fig. 1 provides for the embodiment of the present application.
As shown in Figure 1, the calibration system that the present embodiment provides comprises electric resistance array 30, signal generator 40, relay array 20 and processor 10, wherein: processor 10 is connected with signal generator 40, relay array 20, electric resistance array 30 respectively, relay array 20 is also connected with signal generator 40, electric resistance array 30 respectively.At the temperature transmitter 50 to be calibrated, carry out timing signal, this temperature transmitter 50 is connected with relay array 20, processor 10 respectively.
From technique scheme, can find out, the calibration system of the temperature transmitter that the present embodiment provides comprises electric resistance array, signal generator, relay array and processor, processor can be connected temperature transmitter to be calibrated by pilot relay array with electric resistance array or signal generator, and design factor value under resistance calibration pattern and under thermopair calibration mode, then this coefficient value is write to temperature transmitter to be calibrated, finally complete demarcation.Wherein hand-manipulated without operating personnel, thus the lower problem of artificial scaling method work efficiency can be solved.
In addition, as shown in Figure 2, in the present embodiment, electric resistance array 30 comprises a plurality of resistance; The resistance of resistance wherein comprises 0 ohm, 15 ohm, 40 ohm, 70 ohm, 140 ohm, 390 ohm, 800 ohm and 3900 ohm.Fig. 3～Fig. 5 is different resistance and the connection layout of temperature transmitter.
The millivolt signal that the first port 11 is exported for receiving signal generator 40, preferably GPIB signals collecting port.
The second port one 2 is for the resistance of the resistance that receives electric resistance array 30 and be connected with temperature transmitter 50, preferably GPIB electrical resistance collection interface.
The 3rd port one 3 send signal output part to be connected with the change of temperature transmitter 50, for receiving the change number of delivering letters of temperature transmitter 50 outputs.
The switching of processor 10 pilot relay arrays 20 realizes temperature transmitter 50 two, three, demarcating successively under each resistance mode of four-wire system and mV signal mode, such as at processor 10 pilot relay K1, K2 ... when K12 combines conducting successively, calibration system is demarcated state in two-wire system, at pilot relay K1, K2, K3, K4, K5, K6, K7, K8, K15, when K16 combines conducting successively, calibration system is demarcated state in three-wire system, at pilot relay K1, K2, K3, K4, K6, K7, K8, K10, K14, during k15 combination conducting, calibration system is demarcated state in four-wire system, at pilot relay K17, K18, when K19 combines conducting successively, calibration system is in mV signal scaling state.Demarcation channel capacity ChannelNum is put to initial value 0, by control port 14 pilot relay arrays 20, provide the demarcation low side input signal corresponding with channel C hannelNum, by the first port 11, control High Precision Multimeter, the low side input value of read-out channel ChannelNum, and record, by output port 15, communicate by letter with temperature transmitter 50, to temperature transmitter, send sampling notice, when communication is normal, pass through control port 14 pilot relay arrays 20, provide the high-end input signal of the demarcation corresponding with channel C hannelNum, by the first port 11, control High Precision Multimeter, the high-end input value of read-out channel ChannelNum, and record, by output port 15, communicate by letter with temperature transmitter 50, to temperature transmitter 50, send sampling notice, to temperature transmitter 50, send the notice of design factor.Coefficient reads value in the worthwhile passage of ChannelNum and is less than 32 o'clock ChannelNum values and adds 1 after sending successfully, repeat above process, provides the information of having demarcated when ChannelNum value is more than or equal to 32.
Finally, also it should be noted that, in this article, relational terms such as the first and second grades is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply and between these entities or operation, have the relation of any this reality or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby the process, method, article or the equipment that make to comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or be also included as the intrinsic key element of this process, method, article or equipment.The in the situation that of more restrictions not, the key element being limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the application.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can be in the situation that do not depart from the application's spirit or scope, realization in other embodiments.Therefore, the application will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a calibration system for temperature transmitter, is characterized in that, comprising:
Electric resistance array, comprises a plurality of resistance;
Signal generator, for exporting millivolt signal;
Relay array, be connected with described electric resistance array, described signal generator, temperature transmitter to be calibrated respectively, for according to control command, the different resistance of described a plurality of resistance being connected with described temperature transmitter, or described signal generator is connected with described temperature transmitter;
Processor, be connected with described electric resistance array, described signal generator, described relay array, described temperature transmitter respectively, be used for exporting described control command, and according to the change number of delivering letters of described temperature transmitter output with described millivolt signal or according to the resistance of the resistance being connected with described temperature transmitter and the described change number of delivering letters design factor value, and described coefficient value is write to described temperature transmitter.
2. calibration system as claimed in claim 1, is characterized in that, the resistance of described a plurality of resistance comprises 0 ohm, 15 ohm, 40 ohm, 70 ohm, 140 ohm, 390 ohm, 800 ohm or 3900 ohm.
3. calibration system as claimed in claim 1, is characterized in that, described signal generator is High Precision Multimeter.
4. calibration system as claimed in claim 1, is characterized in that, described relay array comprises 20 relays.
5. calibration system as claimed in claim 1, is characterized in that, described processor comprises:
Control port, for exporting described control command;
The first port, for receiving described millivolt signal;
The second port, for receiving described resistance;
The 3rd port, for receiving the described change number of delivering letters;
Output port, for outputing to described temperature transmitter by described coefficient value.
6. calibration system as claimed in claim 5, is characterized in that, described control port is arranged on the PCI slot of described processor.
7. calibration system as claimed in claim 6, is characterized in that, the magnitude of voltage of the supply voltage of described control port is+5 volts.
8. calibration system as claimed in claim 5, is characterized in that, described the first port is GPIB millivolt signal acquisition interface.
9. calibration system as claimed in claim 5, is characterized in that, described the second port is GPIB electrical resistance collection interface.
10. calibration system as claimed in claim 5, is characterized in that, described output port is USB port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310750833.5A CN103674329B (en) | 2013-12-31 | 2013-12-31 | A kind of calibration system of temperature transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310750833.5A CN103674329B (en) | 2013-12-31 | 2013-12-31 | A kind of calibration system of temperature transmitter |
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| Publication Number | Publication Date |
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| CN103674329A true CN103674329A (en) | 2014-03-26 |
| CN103674329B CN103674329B (en) | 2016-05-04 |
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| CN201310750833.5A Active CN103674329B (en) | 2013-12-31 | 2013-12-31 | A kind of calibration system of temperature transmitter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104748890A (en) * | 2015-03-24 | 2015-07-01 | 上海理工大学 | Thermocouple detecting device |
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| CN2172881Y (en) * | 1994-01-24 | 1994-07-27 | 曹英 | Industrial instrument and automatic control system adjusting instrument |
| CN201352162Y (en) * | 2008-10-15 | 2009-11-25 | 嘉兴电力局 | Transformer temperature calibration device |
| CN202083493U (en) * | 2011-05-05 | 2011-12-21 | 北京昆仑中大工控技术发展有限公司 | Automatic detection system of temperature sensor/transducer |
| CN102928124A (en) * | 2012-11-14 | 2013-02-13 | 甘粛省电力公司白银供电公司 | Inspection tool of temperature transmitter |
| CN102998027A (en) * | 2012-12-12 | 2013-03-27 | 保定供电公司 | Transformer temperature check and test device and method for checking faults of temperature control system |
| CN203132741U (en) * | 2013-03-29 | 2013-08-14 | 成都高斯电子技术有限公司 | Thermal resistance temperature transmitter calibration device |
| US8600693B1 (en) * | 2009-11-24 | 2013-12-03 | The Veracity Group, Inc. | Wireless temperature probe calibration system and method |
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2013
- 2013-12-31 CN CN201310750833.5A patent/CN103674329B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2172881Y (en) * | 1994-01-24 | 1994-07-27 | 曹英 | Industrial instrument and automatic control system adjusting instrument |
| CN201352162Y (en) * | 2008-10-15 | 2009-11-25 | 嘉兴电力局 | Transformer temperature calibration device |
| US8600693B1 (en) * | 2009-11-24 | 2013-12-03 | The Veracity Group, Inc. | Wireless temperature probe calibration system and method |
| CN202083493U (en) * | 2011-05-05 | 2011-12-21 | 北京昆仑中大工控技术发展有限公司 | Automatic detection system of temperature sensor/transducer |
| CN102928124A (en) * | 2012-11-14 | 2013-02-13 | 甘粛省电力公司白银供电公司 | Inspection tool of temperature transmitter |
| CN102998027A (en) * | 2012-12-12 | 2013-03-27 | 保定供电公司 | Transformer temperature check and test device and method for checking faults of temperature control system |
| CN203132741U (en) * | 2013-03-29 | 2013-08-14 | 成都高斯电子技术有限公司 | Thermal resistance temperature transmitter calibration device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104748890A (en) * | 2015-03-24 | 2015-07-01 | 上海理工大学 | Thermocouple detecting device |
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| CN103674329B (en) | 2016-05-04 |
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Effective date of registration: 20220412 Address after: No. 879, Caihe Road, caijiagang Town, Beibei District, Chongqing 400700 Patentee after: Chongqing ChuanYi Instrument No.17 Factory Co.,Ltd. Patentee after: CHONGQING CHUANYI AUTOMATION Co.,Ltd. Address before: 400700 No. 1, people's village, Beibei District, Chongqing Patentee before: CHONGQING CHUANYI AUTOMATION Co.,Ltd. |
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Effective date of registration: 20230614 Address after: 400700 No. 1, people's village, Beibei District, Chongqing Patentee after: CHONGQING CHUANYI AUTOMATION Co.,Ltd. Address before: No. 879, Caihe Road, caijiagang Town, Beibei District, Chongqing 400700 Patentee before: Chongqing ChuanYi Instrument No.17 Factory Co.,Ltd. Patentee before: CHONGQING CHUANYI AUTOMATION Co.,Ltd. |
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