CN103575425A - Automatic compensation-type thermocouple metrological verification polarity extension connector - Google Patents
Automatic compensation-type thermocouple metrological verification polarity extension connector Download PDFInfo
- Publication number
- CN103575425A CN103575425A CN201210257226.0A CN201210257226A CN103575425A CN 103575425 A CN103575425 A CN 103575425A CN 201210257226 A CN201210257226 A CN 201210257226A CN 103575425 A CN103575425 A CN 103575425A
- Authority
- CN
- China
- Prior art keywords
- crocodile clip
- temperature
- copper
- conducting wire
- free end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention discloses an automatic compensation-type thermocouple metrological verification polarity extension connector which comprises a crocodile clip (1), a compensating conducting wire (2) and a copper conducting wire (3). One end of the compensating conducting wire (2) is connected to the crocodile clip (1) through positive and negative electrode guiding wires. The other end of the compensating conducting wire (2) is connected with the copper conducting wire (3) through positive and negative electrode outgoing wires. The other end of the copper conducting wire (3) is connected with two copper wiring forks (4). A free end (5) is arranged at the portion, close to the compensating conducting wire (2), of the copper conducting wire (3). The free end (5) is located in a freezing-point thermostat (10), and the temperature of the free end (5) is kept at 0 DEG C. The copper wiring forks (4) are used for being connected to a low-potential change-over switch (11) and a six half digital multimeter (12) to form a measurement circuit.
Description
Technical field
The present invention relates to a kind of automatic compensation type thermopair metering calibrating polarity extending connector.
Background technology
Industrial thermocouple, comprises the measurement verification of armoured thermocouple cable, the junction of its free end and test lead, and great majority are to be placed in freezing point thermostat.All the time, be all to adopt cold junction compensation method, or adopt compensating wire both positive and negative polarity soldering copper nickel plating crocodile clip, connect thermopair extension line and examine and determine.Above-mentioned two kinds of methods, all exist accuracy and reliability that environmental temperature fluctuation obviously affects verification result.The particularly connection of copper nickel plating crocodile clip and common compensating wire and use, although easy to connect during calibrating, but copper nickel plating crocodile clip and hot thermocouple electrical property are completely different, add the error of common compensating wire, bring sizable additive error and uncertainty to whole verification system.Be difficult to effectively guarantee accuracy, repeatability and the long-term reliability of measurement verification result.Problem is more apparent that, a same armoured thermocouple cable sample, winter verification result with summer verification result compare, error can differ 1.0 ℃ of left and right, produces the reason of the problems referred to above, is all due to the imperfection of calibrating installation and method.
Summary of the invention
The object of the invention is in order to overcome the deficiencies in the prior art, a kind of new type auto compensation thermopair metering calibrating polarity extending connector is provided, the present invention is achieved through the following technical solutions above-mentioned purpose:
A kind of automatic compensation type thermopair metering calibrating polarity extending connector, comprise crocodile clip (1), compensating wire (2) and copper conductor (3), one end of described compensating wire (2) is connected on crocodile clip (1) by both positive and negative polarity guide line, the other end of compensating wire (2) is connected with copper conductor (3) by both positive and negative polarity extension line, the other end of copper conductor (3) is connected with two copper wiring forks (4), described copper conductor (3) is upper has a free end (5) near compensating wire (2) position, this free end (5) is arranged in freezing point thermostat (10), and the temperature that keeps this free end (5) is 0 degree, this copper wiring fork (4), for being connected to low potential switch (11) and six Semi-digital multimeters (12), forms metering circuit, described crocodile clip (1) is clipped on tested industrial thermocouple (6) both positive and negative polarity extension line, realizes the temperature of assay furnace (7) accurately control by temperature-control heat couple (8) and temperature control instrument (9), described compensating wire (2) and crocodile clip (1), at-10 ℃～+ 100 ℃ warm areas, there is good temperature and thermoelectrical potential linear relationship, automatically the be added to measurement result of tested thermopair of the thermoelectrical potential changing value that variation of ambient temperature can be caused, realizes the auto-compensation of measuring system.Described crocodile clip (1) is to adopt to make with the alloy material of the identical thermoelectric property of tested industrial thermocouple (6).The quantity of described crocodile clip (1) is two.
beneficial effect of the present invention:
The present invention replaces original thermopair free end and cannot be placed in Freezing point device situation, polarity while examining and determine is extended connection, adopt regular grade compensating wire to connect copper nickel plating crocodile clip, be connected to tested industrial thermocouple both positive and negative polarity, thoroughly solve the large and different thermoelectric property crocodile clips of compensating wire error when detecting, because free end is influenced by ambient temperature, brought additional measuring error problem; Can conveniently crocodile clip be clipped on tested thermopair both positive and negative polarity extension line, detect in thermoelectrical potential value process, automatic accurate corresponding millivolt value that variation of ambient temperature is worth compensates among measurement result, can increase substantially accuracy, repeatability and the reliability of thermocouple calibration result.Also improved the work efficiency of calibrating in batches simultaneously.
accompanying drawing explanation:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of automatic compensation type thermopair metering calibrating polarity extending connector application.
Description of reference numerals:
1, crocodile clip; 2, compensating wire; 3, copper conductor; 4, copper wiring fork; 5, free end; 6, tested industrial thermocouple; 7, assay furnace; 8, temperature-control heat couple; 9, temperature control instrument; 10, freezing point thermostat; 11, low potential switch; 12, six Semi-digital multimeters.
Embodiment
Below in conjunction with specific embodiment, the present invention is further described.
As shown in Figure 1-2, a kind of automatic compensation type thermopair metering calibrating polarity extending connector, comprise crocodile clip (1), compensating wire (2) and copper conductor (3), one end of described compensating wire (2) is connected on crocodile clip (1) by both positive and negative polarity guide line, the other end of compensating wire (2) is connected with copper conductor (3) by both positive and negative polarity extension line, the other end of copper conductor (3) is connected with two copper wiring forks (4), described copper conductor (3) is upper has a free end (5) near compensating wire (2) position, this free end (5) is arranged in freezing point thermostat (10), and the temperature that keeps this free end (5) is 0 degree, this copper wiring fork (4), for being connected to low potential switch (11) and six Semi-digital multimeters (12), forms metering circuit, described crocodile clip (1) is clipped on tested industrial thermocouple (6) both positive and negative polarity extension line, realizes the temperature of assay furnace (7) accurately control by temperature-control heat couple (8) and temperature control instrument (9), described compensating wire (2) and crocodile clip (1), at-10 ℃～+ 100 ℃ warm areas, there is good temperature and thermoelectrical potential linear relationship, automatically the be added to measurement result of tested thermopair of the thermoelectrical potential changing value that variation of ambient temperature can be caused, realizes the auto-compensation of measuring system.Described crocodile clip (1) is to adopt to make with the alloy material of the identical thermoelectric property of tested industrial thermocouple (6).The quantity of described crocodile clip (1) is two.
As Fig. 2, while forming thermopair metering verification system device, one end free end (5) that compensating wire (2) is connected with copper conductor (3) is placed in freezing point thermostat (10), keeping free end temperature is 0 ℃, the other end of copper conductor (3) is connected with two copper wiring forks (4), copper wiring fork (4) is connected to low potential switch (11) and six Semi-digital multimeters (12), forms metering circuit.While carrying out calibrating, with special materials crocodile clip (1), be clipped on tested industrial thermocouple (6) both positive and negative polarity extension line, while examining and determine branched tested industrial thermocouple, with a plurality of same automatic compensation type thermopair metering calibrating polarity extending connectors, turn on the electricity in advance, while detecting data, only need to switch the switch driver plate of low potential switch (11), can on six Semi-digital multimeters (12), show and read the thermoelectrical potential value of every tested industrial thermocouple, then according to national metrological verification regulations, require to carry out data processing.
In Fig. 2, assay furnace (7) is that the thermostatic device for heating of each corresponding testing site temperature is provided for carrying out calibrating, and it is by temperature-control heat couple (8) and temperature control instrument (9), to realize accurate control of temperature of assay furnace (7).
Certainly; the above is only one embodiment of the present invention; should be understood that those skilled in the art; under the premise without departing from the principles of the invention; can also make some improvements and modifications, within these improvements and modifications all belong to the protection domain of the claims in the present invention.
Claims (3)
1. polarity extending connector is examined and determine in an automatic compensation type thermopair metering, comprise crocodile clip (1), compensating wire (2) and copper conductor (3), one end of described compensating wire (2) is connected on crocodile clip (1) by both positive and negative polarity guide line, the other end of compensating wire (2) is connected with copper conductor (3) by both positive and negative polarity extension line, the other end of copper conductor (3) is connected with two copper wiring forks (4), described copper conductor (3) is upper has a free end (5) near compensating wire (2) position, this free end (5) is arranged in freezing point thermostat (10), and the temperature that keeps this free end (5) is 0 degree, this copper wiring fork (4), for being connected to low potential switch (11) and six Semi-digital multimeters (12), forms metering circuit, described crocodile clip (1) is clipped on tested industrial thermocouple (6) both positive and negative polarity extension line, realizes the temperature of assay furnace (7) accurately control by temperature-control heat couple (8) and temperature control instrument (9), described compensating wire (2) and crocodile clip (1), at-10 ℃～+ 100 ℃ warm areas, there is good temperature and thermoelectrical potential linear relationship, automatically the be added to measurement result of tested thermopair of the thermoelectrical potential changing value that variation of ambient temperature can be caused, realizes the auto-compensation of measuring system.
2. polarity extending connector is examined and determine in a kind of automatic compensation type thermopair metering as claimed in claim 1, and described crocodile clip (1) is to adopt to make with the alloy material of the identical thermoelectric property of tested industrial thermocouple (6).
3. polarity extending connector is examined and determine in a kind of automatic compensation type thermopair metering as claimed in claim 1, and the quantity of described crocodile clip (1) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210257226.0A CN103575425A (en) | 2012-07-24 | 2012-07-24 | Automatic compensation-type thermocouple metrological verification polarity extension connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210257226.0A CN103575425A (en) | 2012-07-24 | 2012-07-24 | Automatic compensation-type thermocouple metrological verification polarity extension connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103575425A true CN103575425A (en) | 2014-02-12 |
Family
ID=50047696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210257226.0A Pending CN103575425A (en) | 2012-07-24 | 2012-07-24 | Automatic compensation-type thermocouple metrological verification polarity extension connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103575425A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105058275A (en) * | 2015-08-27 | 2015-11-18 | 泰安磐然测控科技有限公司 | Clamp special for detecting thermocouple and method for detecting thermocouple |
| CN106537105A (en) * | 2014-08-12 | 2017-03-22 | 奥托尼克斯有限公司 | Optical receptacle and optical module |
| CN107065827A (en) * | 2017-03-24 | 2017-08-18 | 国网福建省电力有限公司 | Digital three-phase temperature controller p-wire |
| CN107101734A (en) * | 2017-05-22 | 2017-08-29 | 安徽埃克森科技集团有限公司 | A kind of thermocouple structure |
| CN107621314A (en) * | 2017-09-18 | 2018-01-23 | 沈阳飞机工业（集团）有限公司 | Calibrate thermocouple Special test tube |
| CN105758545B (en) * | 2016-04-27 | 2018-06-01 | 航天材料及工艺研究所 | A kind of real-time automatic and accurate compensation system of thermocouple reference junction temperature and implementation method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2180987Y (en) * | 1993-12-28 | 1994-10-26 | 汪时慰 | Thermocuple compensator |
| US20050098201A1 (en) * | 2003-11-07 | 2005-05-12 | Kim Yong G. | Pure metal thermocouple and a normal temperature compensating wire therefor |
| CN201163220Y (en) * | 2007-12-20 | 2008-12-10 | 贵州黎阳航空发动机公司 | Armored thermocouple calibrating device for aircraft engine |
| CN201611287U (en) * | 2009-12-30 | 2010-10-20 | 赵建华 | Thermocouple verifying furnace |
| CN202141540U (en) * | 2010-07-12 | 2012-02-08 | 北京康斯特仪表科技股份有限公司 | Process check meter having automatic temperature compensator |
-
2012
- 2012-07-24 CN CN201210257226.0A patent/CN103575425A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2180987Y (en) * | 1993-12-28 | 1994-10-26 | 汪时慰 | Thermocuple compensator |
| US20050098201A1 (en) * | 2003-11-07 | 2005-05-12 | Kim Yong G. | Pure metal thermocouple and a normal temperature compensating wire therefor |
| CN201163220Y (en) * | 2007-12-20 | 2008-12-10 | 贵州黎阳航空发动机公司 | Armored thermocouple calibrating device for aircraft engine |
| CN201611287U (en) * | 2009-12-30 | 2010-10-20 | 赵建华 | Thermocouple verifying furnace |
| CN202141540U (en) * | 2010-07-12 | 2012-02-08 | 北京康斯特仪表科技股份有限公司 | Process check meter having automatic temperature compensator |
Non-Patent Citations (2)
| Title |
|---|
| 林松: "热电偶检定中补偿导线和铜导线的使用问题", 《上海计量测试》 * |
| 欧阳祖行: "《钣金设备设计》", 30 November 1982 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106537105A (en) * | 2014-08-12 | 2017-03-22 | 奥托尼克斯有限公司 | Optical receptacle and optical module |
| CN106537105B (en) * | 2014-08-12 | 2019-05-10 | 奥托尼克斯有限公司 | Terminal board for electric thermo-couple temperature compensation |
| CN105058275A (en) * | 2015-08-27 | 2015-11-18 | 泰安磐然测控科技有限公司 | Clamp special for detecting thermocouple and method for detecting thermocouple |
| CN105758545B (en) * | 2016-04-27 | 2018-06-01 | 航天材料及工艺研究所 | A kind of real-time automatic and accurate compensation system of thermocouple reference junction temperature and implementation method |
| CN107065827A (en) * | 2017-03-24 | 2017-08-18 | 国网福建省电力有限公司 | Digital three-phase temperature controller p-wire |
| CN107101734A (en) * | 2017-05-22 | 2017-08-29 | 安徽埃克森科技集团有限公司 | A kind of thermocouple structure |
| CN107621314A (en) * | 2017-09-18 | 2018-01-23 | 沈阳飞机工业（集团）有限公司 | Calibrate thermocouple Special test tube |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103575425A (en) | Automatic compensation-type thermocouple metrological verification polarity extension connector | |
| CN102297877B (en) | Device and method for measuring thermoelectric parameters of film | |
| CN106706506B (en) | Pipeline inner wall corrosion monitoring device and monitoring method thereof | |
| US10215798B2 (en) | High-temperature test fixture | |
| CN102967624B (en) | Device for testing Seebeck coefficient | |
| CN101821596A (en) | Thermocouple extension wire | |
| CN202886017U (en) | Portable polarity extension connector used for thermocouple calibration | |
| WO2013009689A8 (en) | Temperature measurement of active device under test on strip tester | |
| CN104614399A (en) | Transient hot-wire theory temperature measuring probe for thermophysical property of liquid | |
| CN111238672A (en) | Superconducting tape dynamic temperature measurement method based on magnetic microscopy | |
| CN109596890A (en) | A kind of temperature-coefficient of electrical resistance tester | |
| CN102004187B (en) | Method for measuring super-small DC resistance by series-wound additional resistance difference value method | |
| CN105058275B (en) | A kind of thermocouple calibration special fixture and thermocouple calibration method | |
| WO2017160254A1 (en) | Electric meter and/or electric measuring instrument without connection terminals comprising cable passage | |
| CN104390728A (en) | Method for measuring thermocouple welding connection correctness before spacecraft thermal test | |
| CN204188309U (en) | A kind of accurate thermopair reference edge samming compensating module | |
| CN109142877B (en) | Wire and cable quality detection method, device, equipment and storage medium | |
| CN102087149A (en) | Temperature calibrator with temperature difference measurement function | |
| CN104568629A (en) | Test sample and method for detecting metal thinning velocity on line | |
| CN113092533B (en) | Measuring clamp and measuring system | |
| CN202929112U (en) | Apparatus for testing resistivity of solar cell material under low temperature | |
| CN205027820U (en) | System for be used for measuring thermoelectric block component resistance | |
| CN202210002U (en) | Thermocouple zero compensation arrangement | |
| CN103487171A (en) | Crocodile-type clamp | |
| CN108801487B (en) | Metal test piece temperature measuring device and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140212 |
|
| RJ01 | Rejection of invention patent application after publication |