CN102478439A - Automatic calibration system for temperature detection device - Google Patents
Automatic calibration system for temperature detection device Download PDFInfo
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- CN102478439A CN102478439A CN 201010555998 CN201010555998A CN102478439A CN 102478439 A CN102478439 A CN 102478439A CN 201010555998 CN201010555998 CN 201010555998 CN 201010555998 A CN201010555998 A CN 201010555998A CN 102478439 A CN102478439 A CN 102478439A
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- data processor
- temperature
- calibration system
- thermopair
- temperature detection
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Abstract
The invention discloses an automatic calibration system for a temperature detection device, wherein the automatic calibration system for the temperature detection device comprises a clamping mechanism, a driving mechanism, a constant-temperature furnace capable of providing standard detection environments in multiple temperature conditions to a thermocouple to be detected and a standard thermocouple, a data processor, two direct-current potential difference meters, a difference value comparison module for performing difference value comparison on electromotive force values detected by the two direct-current potential difference meters, an averaging module for averaging difference value comparison results output by the difference value comparison module in multiple test conditions at different temperatures and reckoning a temperature detection difference value between the detected thermocouple and the standard thermocouple, a timing circuit, a counting circuit for counting temperature detection and test times, a parameter input unit and a display unit. The automatic calibration system for the temperature detection device disclosed by the invention has the advantages of reasonable design, simplicity for operation, high intelligentization degree, good using effect and capability of overcoming disadvantages that a traditional automatic calibration system for a thermocouple has a low intelligentization degree, inconvenience for parameter regulation, a need for manual intervention in the whole process, failure of automatically finishing all calibration procedures, and the like.
Description
Technical field
The invention belongs to temperature-detecting device calibrating and collimation technique field, especially relate to a kind of temperature-detecting device and use automated calibration system.
Background technology
Temperature detection is occupied important position in every field such as daily life, industrial and agricultural production, national defence scientific research, chemical industry, oil, building, light textile and scientific researches, along with the develop rapidly of science and technology, requires increasingly high to temperature accuracy.The sensor kind that the measurement temperature is used in the industry is a lot, and thermopair is most widely used a kind of temperature element, and existing measuring and controlling temp technology and detection means are also gradually to modernization and the development of intelligent aspect.The ultimate principle of thermocouple measuring temperature is a thermoelectric effect, and the metallic conductor of two kinds of heterogeneities is joined end to end into the closed-loop path, if when the temperature of two contacts does not wait, then in the loop, will produce thermoelectrical potential, forms thermocurrent, thermoelectric effect that Here it is.Thermopair is welded two kinds of different metallic material one ends exactly.One end of welding is called measuring junction, and an end of welding is not called reference edge.The usually constant in use temperature on a top of reference edge is like (0 ℃).When measuring junction is heated, just have thermoelectrical potential at the contact place and produce.After the temperature change of measuring junction, thermoelectrical potential also changes thereupon, and a fixing funtcional relationship is arranged between temperature and the thermoelectrical potential, utilizes this relation just can measure temperature.Thermopair is in actual thermometric process; Owing to receive influences such as staining of measurement environment, atmosphere, serviceability temperature and insulation tube material and protection tube material; Its pyroelecthc properties can change after using a period of time; Especially in high temperature, aggressive atmosphere and special measurement (like high speed, high-temperature molten metal etc.); Above-mentioned influence is just even more serious, the just distortion of temperature of thermocouple measurement when the hot thermocouple change in electrical characteristics surpasses the scope of regulation, and this will influence the temperature control in the technological process.Thereby need in use for some time will carry out periodic calibration to guarantee the quality of thermopair to thermopair, make its thermometric accurate, guarantee that transmission of quantity value is consistent.
But the most number average of existing thermopair automated calibration system is to adopt bipolar process calibrating thermopair; Bipolar process bands together standard couple and seized thermopair exactly and is placed on assay furnace or oil groove, and the thermoelectrical potential value of measuring seized thermopair and standard couple with electric probe device (specifically being DC potentiometer) respectively is to confirm their deviation.But in the actual use, existing thermopair automated calibration system exists to some extent that intelligent degree is lower, parameter adjustment is inconvenient, need artificially to participate in the overall process, can not accomplish automatically being calibrated number of drawbacks and the deficiencies such as whole calibration processes that the temperature correction device is calibrated.
Summary of the invention
Technical matters to be solved by this invention is to above-mentioned deficiency of the prior art; Provide a kind of temperature-detecting device to use automated calibration system; Its reasonable in design, easy and simple to handle and intelligent degree is high, result of use is good, and the intelligent degree that can effectively solve existing thermopair automated calibration system existence is lower, parameter adjustment is inconvenient, need manual work to participate in the overall process, can not accomplish automatically being calibrated the defectives such as whole calibration processes that the temperature correction device is calibrated.
For solving the problems of the technologies described above; The technical scheme that the present invention adopts is: a kind of temperature-detecting device is used automated calibration system; It is characterized in that: comprise to standard couple and be calibrated in the temperature-detecting device by the clamping device that grips of calibrating thermopair, to clamping device carry out drive controlling driving mechanism, can for thermostatic control stove that the standard detection environment a plurality of temperature conditions under is provided by calibrating thermopair and standard couple, data processor, two respectively to the DC potentiometer that detected by the electromotive force value of calibrating thermopair and standard couple, to two DC potentiometers detect that the electromotive force value is carried out the difference comparison module of difference comparison, difference comparative result that difference comparison module under a plurality of temperature test conditions is exported carries out that the timing circuit that joins by the average processing module of the temperature detection deviate between calibrating thermopair and the standard couple, with data processor is handled and extrapolated to average, counting circuit that the temperature verification test number of times of being examined and determine thermopair and standard couple is added up and the parameter input unit and the display unit that join with data processor respectively, said data processor joins with the temperature controller of thermostatic control stove and the furnace temperature of tackling the thermostatic control stove is mutually adjusted automatically; Said data processor joins with the signal processor that is calibrated in the temperature-detecting device being handled by calibrating thermopair institute detection signal; And data processor calculates that with the average processing module temperature detection deviate synchronous driving that draws is to signal processor; Said driving mechanism is controlled by data processor and itself and data processor join, and two DC potentiometers, difference comparison module, average processing module and counting circuits all join with data processor.
The said temperature pick-up unit is used automated calibration system; It is characterized in that: also comprise remote monitor and join with data processor and data processor is inserted the network insertion device of internet, carry out two-way communication through the network insertion device and the webserver between said remote monitor and the data processor.
The said temperature pick-up unit is used automated calibration system, it is characterized in that: also comprise the alarm unit that joins with data processor and carry out corresponding control by the difference comparative result that data processor is exported according to the difference comparison module.
The said temperature pick-up unit is used automated calibration system, it is characterized in that: said parameter input unit and display unit are integrated into touching display screen.
The said temperature pick-up unit is used automated calibration system; It is characterized in that: carry out two-way communication with communication between said touching display screen and the data processor; And said touching display screen is fixedly mounted on the hand-held remote control unit; Be connected to wireless communication module one and wireless communication module two on said touching display screen and the data processor respectively, said wireless communication module one with wireless communication module two-phase be used and the working frequency range of the two identical.
The present invention compared with prior art has the following advantages:
1, reasonable in design, input cost is low and install to lay convenient.
2, the simple and easy-to-connect of circuit.
3, use simple to operate, intelligent degree high and easy to adjust, can realize the automatic calibration process of temperature-detecting device through data processor automatically.
4, intelligent degree height and result of use are good; The present invention is provided with standard couple and is calibrated the clamping device that is gripped by the calibrating thermopair in the temperature-detecting device and can the thermostatic control stove of the standard detection environment under a plurality of temperature conditions be provided for being examined and determine thermopair and standard couple; Data processor joins with the temperature controller of thermostatic control stove and the furnace temperature of tackling the thermostatic control stove is mutually adjusted automatically in the actual use; Carry out the difference comparison module of difference comparison and tackle mutually under a plurality of temperature conditions by the difference between calibrating thermopair and the standard couple and add up and two DC potentiometers are detected the electromotive force value; The subsequent data processor calls difference comparative result that the average processing module exported difference comparison module under a plurality of temperature test conditions to carry out average and handles and extrapolate by the temperature detection deviate between calibrating thermopair and the standard couple; Thereby the present invention can be automatically under a plurality of temperature conditions to being estimated by the detection deviation of calibrating thermopair, can accomplish automatically being calibrated whole calibration processes that the temperature correction device is calibrated.
5, applied widely and popularizing application prospect is extensive.
In sum; The present invention is reasonable in design, easy-to-connect, use is easy and simple to handle and intelligent degree is high, result of use is good, can solve effectively that the intelligent degree that existing thermopair automated calibration system exists is lower, parameter adjustment is inconvenient, need artificially to participate in the overall process, can not accomplish automatically being calibrated number of drawbacks and the deficiencies such as whole calibration processes that the temperature correction device is calibrated.
Through accompanying drawing and embodiment, technical scheme of the present invention is done further detailed description below.
Description of drawings
Fig. 1 is a schematic block circuit diagram of the present invention.
Description of reference numerals:
The 1-clamping device; The 2-driving mechanism; The 3-data processor;
4-thermostatic control stove; The 5-DC potentiometer; 6-difference comparison module;
7-average processing module; The 8-parameter input unit; The 9-display unit;
The 10-timing circuit; The 11-counting circuit; 12-1-is examined and determine thermopair;
The 12-2-signal processor; 13-alarm unit; 14-network insertion device;
The 15-remote monitor; The 16-webserver; 17-wireless communication module one;
18-wireless communication module two; The 19-hand-held remote control unit.
Embodiment
As shown in Figure 1, the present invention includes to standard couple and be calibrated the clamping device 1 that is gripped by calibrating thermopair 12-1 in the temperature-detecting device, to clamping device 1 carry out drive controlling driving mechanism 2, can for thermostatic control stove 4 that the standard detection environment a plurality of temperature conditions under is provided by calibrating thermopair 12-1 and standard couple, data processor 3, two respectively to the DC potentiometer 5 that detected by the electromotive force value of calibrating thermopair 12-1 and standard couple, to two DC potentiometer 5 electromotive force values that detect carry out the difference comparison module 6 of difference comparison, difference comparative result that difference comparison module 6 under a plurality of temperature test conditions is exported carries out timing circuit 10 that average handles and extrapolate to join by the average processing module 7 of the temperature detection deviate between calibrating thermopair 12-1 and the standard couple, with data processor 3, counting circuit 11 that the temperature verification test number of times of being examined and determine thermopair 12-1 and standard couple is added up and the parameter input unit 8 and the display unit 9 that join with data processor 3 respectively.Said data processor 3 joins with the temperature controller of thermostatic control stove 1 and the furnace temperature of tackling thermostatic control stove 4 is mutually adjusted automatically.Said data processor 3 joins to the signal processor 12-2 that is handled by calibrating thermopair 12-1 institute detection signal with being calibrated in the temperature-detecting device; And data processor 3 calculates that with average processing module 7 the temperature detection deviate synchronous driving that draws is to signal processor 12-2; Said driving mechanism 2 is controlled by data processor 3 and itself and data processor 3 join, and two DC potentiometers 5, difference comparison module 6, average processing module 7 and counting circuits 11 all join with data processor 3.In the actual use; When average processing module 7 is calculated the temperature detection deviate synchronous driving that draws to signal processor 12-2, signal processor 12-2 writes down this detections deviate and utilizes this detection deviate to numerical value correction that this thermopair detects afterwards.
Simultaneously; For realizing remote monitoring; The present invention also comprises remote monitor 15 and joins with data processor 3 and with the network insertion device 14 of data processor 3 access internets, carry out two-way communication through the network insertion device 14 and the webserver 16 between said remote monitor 15 and the data processor 3.In the present embodiment, the present invention also comprises the alarm unit 13 that joins with data processor 3 and carry out corresponding control by the difference comparative result that data processor 3 is exported according to difference comparison module 6.
In the present embodiment, said parameter input unit 8 is integrated into touching display screen with display unit 9.Carry out two-way communication with communication between said touching display screen and the data processor 3; And said touching display screen is fixedly mounted on the hand-held remote control unit 19; Be connected to wireless communication module 1 and wireless communication module 2 18 on said touching display screen and the data processor 3 respectively, match use and the working frequency range of the two of said wireless communication module 1 and wireless communication module 2 18 is identical.
The above; It only is preferred embodiment of the present invention; Be not that the present invention is done any restriction, every technical spirit changes any simple modification, change and the equivalent structure that above embodiment did according to the present invention, all still belongs in the protection domain of technical scheme of the present invention.
Claims (5)
1. a temperature-detecting device is used automated calibration system; It is characterized in that: comprise to standard couple and be calibrated in the temperature-detecting device by the clamping device (1) that grips of calibrating thermopair (12-1), to clamping device (1) carry out drive controlling driving mechanism (2), can for thermostatic control stove (4) that the standard detection environment a plurality of temperature conditions under is provided by calibrating thermopair (12-1) and standard couple, data processor (3), two respectively to the DC potentiometer (5) that detected by the electromotive force value of calibrating thermopair (12-1) and standard couple, to two DC potentiometers (5) electromotive force value that detects carry out relatively difference comparison module (6) of difference, difference comparative result that difference comparison module (6) under a plurality of temperature test conditions is exported carries out the average processing and the average processing module (7) extrapolating to be examined and determine the temperature detection deviate between thermopair (12-1) and the standard couple, and the timing circuit (10) that joins of data processor (3), parameter input unit (8) and display unit (9) that quilt is examined and determine counting circuit (11) that the temperature verification test number of times of thermopair (12-1) and standard couple adds up and joined with data processor (3) respectively, said data processor (3) joins with the temperature controller of thermostatic control stove (1) and the furnace temperature of tackling thermostatic control stove (4) is mutually adjusted automatically; Said data processor (3) joins with the signal processor (12-2) that is calibrated in the temperature-detecting device being handled by calibrating thermopair (12-1) institute detection signal; And data processor (3) calculates that with average processing module (7) the temperature detection deviate synchronous driving that draws is to signal processor (12-2); Said driving mechanism (2) is controlled by data processor (3) and itself and data processor (3) join, and two DC potentiometers (5), difference comparison module (6), average processing module (7) and counting circuit (11) all join with data processor (3).
2. use automated calibration system according to the described temperature-detecting device of claim 1; It is characterized in that: also comprise remote monitor (15) and join with data processor (3) and data processor (3) is inserted the network insertion device (14) of internet, carry out two-way communication through the network insertion device (14) and the webserver (16) between said remote monitor (15) and the data processor (3).
3. use automated calibration system according to claim 1 or 2 described temperature-detecting devices, it is characterized in that: also comprise the alarm unit (13) that joins and carry out corresponding control by the difference comparative result that data processor (3) is exported according to difference comparison module (6) with data processor (3).
4. use automated calibration system according to claim 1 or 2 described temperature-detecting devices, it is characterized in that: said parameter input unit (8) and display unit (9) are integrated into touching display screen.
5. use automated calibration system according to the described temperature-detecting device of claim 4; It is characterized in that: said touching display screen and data processor carry out two-way communication with communication between (3); And said touching display screen is fixedly mounted on the hand-held remote control unit (19); Be connected to wireless communication module one (17) and wireless communication module two (18) on said touching display screen and the data processor (3) respectively, said wireless communication module one (17) and wireless communication module two (18) match use and the working frequency range of the two identical.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010555998 CN102478439A (en) | 2010-11-23 | 2010-11-23 | Automatic calibration system for temperature detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010555998 CN102478439A (en) | 2010-11-23 | 2010-11-23 | Automatic calibration system for temperature detection device |
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| CN102478439A true CN102478439A (en) | 2012-05-30 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928122A (en) * | 2012-09-26 | 2013-02-13 | 中国计量学院 | Equipment index information verification method and device for automatic calibration of industrial thermometer |
| CN103323148A (en) * | 2013-06-05 | 2013-09-25 | 苏州惠瑞自动化集成有限公司 | Automatic heat measuring system with warning device |
| WO2013185367A1 (en) * | 2012-06-13 | 2013-12-19 | 深圳市理邦精密仪器股份有限公司 | Self-calibration temperature control device and method |
| CN104748890A (en) * | 2015-03-24 | 2015-07-01 | 上海理工大学 | Thermocouple detecting device |
| CN105387954A (en) * | 2015-12-22 | 2016-03-09 | 陕西电器研究所 | Calibration device suitable for contact-type high temperature sensor |
| CN109163822A (en) * | 2018-09-13 | 2019-01-08 | 中国航发湖南动力机械研究所 | Temperature sensor quiet hour constant detection device and system |
| CN110186518A (en) * | 2019-07-09 | 2019-08-30 | 杭州麦乐克科技股份有限公司 | A kind of temperature and humidity calibrating installation system of intelligent environment detection panel sensing equipment |
| CN110196075A (en) * | 2018-02-27 | 2019-09-03 | 上海市计量测试技术研究院 | A kind of environmental test equipment calibration long-range temperature and humidity test system and test method |
| CN110455439A (en) * | 2019-08-19 | 2019-11-15 | 阜阳华润电力有限公司 | A kind of temperature checking system added based on internet |
| CN111765993A (en) * | 2020-07-02 | 2020-10-13 | 赛特斯信息科技股份有限公司 | Communication and calibration management system among multiple Internet of things systems |
| CN113390524A (en) * | 2021-06-04 | 2021-09-14 | 无锡物联网创新中心有限公司 | Thermosensitive sensor and working method thereof |
| CN113884222A (en) * | 2021-09-30 | 2022-01-04 | 湖南省计量检测研究院 | Calibration device and calibration method for ultra-short thermocouple |
-
2010
- 2010-11-23 CN CN 201010555998 patent/CN102478439A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013185367A1 (en) * | 2012-06-13 | 2013-12-19 | 深圳市理邦精密仪器股份有限公司 | Self-calibration temperature control device and method |
| CN102928122B (en) * | 2012-09-26 | 2014-04-16 | 中国计量学院 | Equipment index information verification method and device for automatic calibration of industrial thermometer |
| CN102928122A (en) * | 2012-09-26 | 2013-02-13 | 中国计量学院 | Equipment index information verification method and device for automatic calibration of industrial thermometer |
| CN103323148A (en) * | 2013-06-05 | 2013-09-25 | 苏州惠瑞自动化集成有限公司 | Automatic heat measuring system with warning device |
| CN104748890A (en) * | 2015-03-24 | 2015-07-01 | 上海理工大学 | Thermocouple detecting device |
| CN105387954A (en) * | 2015-12-22 | 2016-03-09 | 陕西电器研究所 | Calibration device suitable for contact-type high temperature sensor |
| CN110196075A (en) * | 2018-02-27 | 2019-09-03 | 上海市计量测试技术研究院 | A kind of environmental test equipment calibration long-range temperature and humidity test system and test method |
| CN109163822A (en) * | 2018-09-13 | 2019-01-08 | 中国航发湖南动力机械研究所 | Temperature sensor quiet hour constant detection device and system |
| CN110186518A (en) * | 2019-07-09 | 2019-08-30 | 杭州麦乐克科技股份有限公司 | A kind of temperature and humidity calibrating installation system of intelligent environment detection panel sensing equipment |
| CN110455439A (en) * | 2019-08-19 | 2019-11-15 | 阜阳华润电力有限公司 | A kind of temperature checking system added based on internet |
| CN111765993A (en) * | 2020-07-02 | 2020-10-13 | 赛特斯信息科技股份有限公司 | Communication and calibration management system among multiple Internet of things systems |
| CN111765993B (en) * | 2020-07-02 | 2022-04-19 | 赛特斯信息科技股份有限公司 | Communication and calibration management system among multiple Internet of things systems |
| CN113390524A (en) * | 2021-06-04 | 2021-09-14 | 无锡物联网创新中心有限公司 | Thermosensitive sensor and working method thereof |
| CN113390524B (en) * | 2021-06-04 | 2022-04-12 | 无锡物联网创新中心有限公司 | Thermosensitive sensor and working method thereof |
| CN113884222A (en) * | 2021-09-30 | 2022-01-04 | 湖南省计量检测研究院 | Calibration device and calibration method for ultra-short thermocouple |
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Application publication date: 20120530 |