CN103674329B - A kind of calibration system of temperature transmitter - Google Patents
A kind of calibration system of temperature transmitter Download PDFInfo
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- CN103674329B CN103674329B CN201310750833.5A CN201310750833A CN103674329B CN 103674329 B CN103674329 B CN 103674329B CN 201310750833 A CN201310750833 A CN 201310750833A CN 103674329 B CN103674329 B CN 103674329B
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Abstract
The application provides a kind of calibration system of temperature transmitter, comprise electric resistance array, signal generator, relay array and processor, processor can be connected temperature transmitter to be calibrated by control relay array with electric resistance array or signal generator, and design factor value under resistance calibration pattern and under thermocouple calibration mode, then this coefficient value is write to temperature transmitter to be calibrated, finally complete demarcation. Wherein without operating personnel's manual operations, thereby can solve the lower problem of artificial scaling method operating efficiency.
Description
Technical field
The application relates to sensor technical field, more particularly, relates to a kind of demarcation of temperature transmitterSystem.
Background technology
Temperature transmitter must be demarcated before dispatching from the factory, and needs operating personnel to pass through manual by different electricityResistance or different magnitude of voltage input temp transmitters, calculate calibration coefficient according to its output valve, then willCalibration coefficient input temp transmitter, operating efficiency is lower.
Summary of the invention
In view of this, the application provides a kind of calibration system of temperature transmitter, for to temperature transmitterDemarcate, to solve the lower problem of artificial scaling method operating efficiency.
To achieve these goals, the existing scheme proposing is as follows:
A calibration system for temperature transmitter, comprising:
Electric resistance array, comprises multiple resistance;
Signal generator, for exporting millivolt signal;
Relay array, becomes with described electric resistance array, described signal generator, temperature to be calibrated respectivelySend device to be connected, for the different resistance of described multiple resistance and the change of described temperature being sent according to control commandDevice is connected, or described signal generator is connected with described temperature transmitter;
Processor, respectively with described electric resistance array, described signal generator, described relay array, instituteState temperature transmitter and be connected, for exporting described control command, and according to described temperature transmitter outputThe change number of delivering letters with described millivolt signal or according to the resistance of the resistance being connected with described temperature transmitterValue 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 multiple resistance comprise 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.
Can find out from technique scheme, the calibration system of the temperature transmitter that the application provides comprises electricityResistance array, signal generator, relay array and processor, processor can be incited somebody to action by control relay arrayTemperature transmitter to be calibrated is connected with electric resistance array or signal generator, and under resistance calibration patternWith design factor value under thermocouple calibration mode, then this coefficient value is write to temperature transmitter to be calibrated,Finally complete demarcation. Wherein without operating personnel's manual operations, thereby can solve artificial scaling method workMake the problem that efficiency is lower.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, below will be to realityThe accompanying drawing of executing required use in example or description of the Prior Art is briefly described, apparently, belowAccompanying drawing in description is only some embodiment of the application, for those of ordinary skill in the art,Do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structure chart 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 structure chart 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.
Detailed description of the invention
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 carried outDescribe clearly and completely, obviously, described embodiment is only some embodiments of the present application, andNot whole embodiment. Based on the embodiment in the application, those of ordinary skill in the art are not doingGo out the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the application's protection.
Embodiment mono-
The structure chart 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 comprise electric resistance array 30, signal generator 40,Relay array 20 and processor 10, wherein: processor 10 respectively with signal generator 40, relayArray 20, electric resistance array 30 are connected, relay array 20 also respectively with signal generator 40, resistanceArray 30 is connected. Carry out timing signal at the temperature transmitter 50 to be calibrated, by this temperature transmitter50 are connected with relay array 20, processor 10 respectively.
Electric resistance array 30 comprises multiple resistance;
Signal generator 40 is for exporting millivolt signal;
Relay array 20 for when at resistance mode timing signal according to control command by electric resistance array 30Different resistance be connected with temperature transmitter 50, or when in thermocouple calibration mode by signal generator40 are connected with temperature transmitter 50.
Processor 10 is for exporting the control command for control relay array 20, and becomes according to temperatureSend millivolt signal that the change number of delivering letters that device 50 exports and signal generator 40 export or according to temperatureThe change number of the delivering letters design factor value that the resistance of the resistance that transmitter 50 is connected and temperature transmitter 50 are exported,Finally the coefficient value drawing is write to temperature transmitter 50, complete demarcation.
Can find out from technique scheme, the calibration system of the temperature transmitter that the present embodiment provides comprisesElectric resistance array, signal generator, relay array and processor, processor can control relay arrayTemperature transmitter to be calibrated is connected with electric resistance array or signal generator, and in resistance calibration patternDesign factor value under lower and thermocouple calibration mode, then writes this coefficient value temperature change to be calibrated and sendDevice, finally completes demarcation. Wherein without operating personnel's manual operations, thereby can solve artificial demarcation sideThe problem that method operating efficiency is lower.
In addition, as shown in Figure 2, in the present embodiment, electric resistance array 30 comprises multiple resistance; Resistance whereinResistance comprise 0 ohm, 15 ohm, 40 ohm, 70 ohm, 140 ohm, 390 ohm, 800Ohm and 3900 ohm. Fig. 3～Fig. 5 is different resistance and the connection layout of temperature transmitter.
Signal generator 40 preferred high accuracy universal meters, the preferred Agilent of model.
Relay array 20 comprises 20 relays. Preferably select the RY5W-K of Toshiba relay array,Its contact load is 1A24VDC, 0.5A120VAC, and impedance is less than 100 bold and unconstrained Europe, to circuitAffect very little.
Processor 10 is provided with control port 14, the first port 11, the second port one 2, the 3rd port one 3With output port 15.
Control port 14 is for exporting control command, to control different resistance and temperature transmitter 50 phasesConnect, preferably PCI board. Driving voltage is+5 volts.
The millivolt signal that the first port 11 is exported for receiving signal generator 40, preferably GPIB signal is adoptedCollection 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 50Value, 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 temperatureThe change number of delivering letters that transmitter 50 is exported.
Output port 15 is connected with the input of temperature transmitter 50, for processor 10 is calculatedTo coefficient value write temperature transmitter 50, the preferred USB port of output port 15. USB port passes throughTurning serial port circuit is connected with the input port of temperature transmitter 50.
The switching of processor 10 control relay arrays 20 realizes temperature transmitter 50 at two, three, four linesMake under each resistance mode and mV signal mode demarcating successively, such as controlling relay at processor 10Device K1, K2 ... when K12 combines conducting successively, calibration system is demarcated state in two-wire system, is controlling relayDevice K1, K2, K3, K4, K5, K6, K7, K8, K15, when K16 combines conducting successively, calibration system is in three-wire systemDemarcation state, at control relay K1, K2, K3, K4, K6, K7, K8, K10, K14, k15 combination conducting markersFixed system is demarcated state in four-wire system, at control relay K17, and K18, K19 combines conducting markers successivelyFixed system is in mV signal scaling state. Demarcation channel capacity ChannelNum is put to initial value 0, logicalCross control port 14 control relay arrays 20, provide the demarcation low side corresponding with channel C hannelNumInput signal, controls High Precision Multimeter by the first port 11, and read-out channel ChannelNum's is lowEnd input value, and record, communicate by letter with temperature transmitter 50 by output port 15, sends out to temperature transmitterGo out sampling notice, in the time that communication is normal, by control port 14 control relay arrays 20, provide and passageThe high-end input signal of demarcation that ChannelNum is corresponding, controls High Precision Multimeter by the first port 11,The high-end input value of read-out channel ChannelNum, and record, become and send with temperature by output port 15Device 50 is communicated by letter, and sends sampling notice to temperature transmitter 50, sends design factor to temperature transmitter 50Notice. The value that coefficient reads after sending successfully in the worthwhile passage of ChannelNum is less than at 32 o'clockChannelNum value adds 1, repeats above process, in the time that ChannelNum value is more than or equal to 32 toThe information that goes out to have demarcated.
Finally, also it should be noted that, in this article, the relational terms such as the first and second gradesOnly be used for an entity or operation and another entity or operating space to separate, and not necessarily requirementOr imply the relation or the order that between these entities or operation, there are any this reality. And, artLanguage " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, therebyThe process, method, article or the equipment that make to comprise a series of key elements not only comprise those key elements, andAlso comprise other key elements of clearly not listing, or be also included as this process, method, article orThe key element that person's equipment is intrinsic. In the situation that there is no more restrictions, by statement " comprising ... "The key element limiting, and be not precluded within process, method, article or the equipment that comprises described key element and also depositAt other identical element.
In this description, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stressesBe and the difference of other embodiment, between each embodiment identical similar part mutually referring to.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field can be realized or useThe application. To be aobvious and easy for those skilled in the art to the multiple amendment of these embodimentSee, General Principle as defined herein can be in the case of not departing from the application's spirit or scope,Realize in other embodiments. Therefore, the application will can not be restricted to these embodiment shown in this article,But to 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 multiple resistance;
Signal generator, for exporting millivolt signal;
Relay array, becomes with described electric resistance array, described signal generator, temperature to be calibrated respectivelySend device to be connected, for the different resistance of described multiple resistance and the change of described temperature being sent according to control commandDevice is connected, or described signal generator is connected with described temperature transmitter;
Processor, respectively with described electric resistance array, described signal generator, described relay array, instituteState temperature transmitter and be connected, for exporting described control command, and according to described temperature transmitter outputThe change number of delivering letters with described millivolt signal or according to the resistance of the resistance being connected with described temperature transmitterValue 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 bag of described multiple resistanceDraw together 0 ohm, 15 ohm, 40 ohm, 70 ohm, 140 ohm, 390 ohm, 800 ohm or 3900Ohm.
3. calibration system as claimed in claim 1, is characterized in that, described signal generator is high-precisionDegree universal meter.
4. calibration system as claimed in claim 1, is characterized in that, described relay array comprises 20Individual relay.
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 instituteState the PCI slot of processor.
7. calibration system as claimed in claim 6, is characterized in that, the power supply electricity of described control portThe magnitude of voltage of pressing is+5 volts.
8. calibration system as claimed in claim 5, is characterized in that, described the first port is GPIBMillivolt signal acquisition interface.
9. calibration system as claimed in claim 5, is characterized in that, described the second port is GPIBElectrical resistance collection interface.
10. calibration system as claimed in claim 5, is characterized in that, described output port is USBPort.
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| 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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| 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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| CN103674329A CN103674329A (en) | 2014-03-26 |
| CN103674329B true 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104748890A (en) * | 2015-03-24 | 2015-07-01 | 上海理工大学 | Thermocouple detecting device |
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 |
| 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 |
-
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 |
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| CN103674329A (en) | 2014-03-26 |
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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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