CN109282910A - Double redundancy temperature-sensing element (device) - Google Patents
Double redundancy temperature-sensing element (device) Download PDFInfo
- Publication number
- CN109282910A CN109282910A CN201710593579.0A CN201710593579A CN109282910A CN 109282910 A CN109282910 A CN 109282910A CN 201710593579 A CN201710593579 A CN 201710593579A CN 109282910 A CN109282910 A CN 109282910A
- Authority
- CN
- China
- Prior art keywords
- temperature
- sensing element
- double redundancy
- metallic framework
- platinum filament
- 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
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 73
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 36
- 238000009413 insulation Methods 0.000 claims abstract description 21
- 239000004744 fabric Substances 0.000 claims abstract description 6
- 239000000835 fiber Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 4
- 239000003973 paint Substances 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims 1
- 230000004044 response Effects 0.000 abstract description 12
- 230000035945 sensitivity Effects 0.000 abstract description 10
- 229910052751 metal Inorganic materials 0.000 abstract description 9
- 239000002184 metal Substances 0.000 abstract description 9
- 238000005259 measurement Methods 0.000 abstract description 4
- 239000004065 semiconductor Substances 0.000 description 7
- 230000005855 radiation Effects 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 230000004304 visual acuity Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
Abstract
A kind of double redundancy temperature-sensing element (device) provided by the invention, it is desirable to provide a kind of high resolution, small size, high response enwinding type temperature-sensing element (device).The technical scheme is that: at least four lines are simultaneously wound on the insulation liner film (5) for being wrapped in metallic framework (1) cylinder around platinum filament (2), by being fixed on the lug plate (3) of ring cloth on metallic framework (1) tail end, is exported from lead-out wire (4) the same end and draw two groups of double redundancy signals.The temperature signal experienced is converted into resistance and temperature relation close to linear resistance signal by the present invention, improves the response speed and bigger sensitivity resistor rate of thermal resistance in the range of whole measurement temperature.Using the resistance value and temperature of metal platinum at certain functional relation, ambient temperature can be converted into available resistance signal.With small in size, high resolution, high reliability, high response, very strong mechanical resistant environment capacity.
Description
Technical field
The present invention relates to a kind of high-resolution, the double redundancy temperature-sensing element (device) of high response.
Background technique
Thermal resistance sensor can be divided into metal fever resistance by resistance-temperature characterisitic difference and semiconductor heat resistance two is big
Class.Metal fever resistance is generally called thermal resistance, and semiconductor heat resistance is called thermistor.The resistivity of metal can be with temperature
The variation of degree and change.For most metals when temperature increases 1 degree Celsius, resistance value will increase by 0.4%~0.6%.Metal energy
Temperature change is converted into the variation of resistance, conversely, corresponding temperature can be measured by the resistance variations of metal.Utilize heat
This transfer principle of resistance not only makes thermal resistance can be applied to temperature measurement, it may also be used for flow, speed, concentration and density
The measurement of equal parameters.Thermal resistance material and thermal resistance is required to be made of components such as hot water radiation wire, insulation framework, lead-out wires, wherein
Hot water radiation wire is the main body of thermal resistance, and the material of hot water radiation wire should generally meet following requirements, and temperature-coefficient of electrical resistance is big, to mention
The sensitivity resistor rate of high thermal resistance is as big as possible, wants small to reduce resistance size thermal capacity under same sensitivity, so as to
The response speed for improving thermal resistance in the range of whole measurement temperature, should have stable physical and chemical properties resistance and temperature
Relationship it is preferably close to linear.Temperature sensor is mainly made of temperature-sensitive element.Temperature-sensitive element is various in style, there is bimetallic
Piece, copper thermistor, platinum resistance thermometer sensor, thermocouple and semiconductor thermistor etc..Using semiconductor thermistor as the temperature of detecting element
Spend sensor application it is extensive, this is because element allow operating condition within the scope of, semiconductor thermistor device have it is small in size,
High sensitivity, feature with high accuracy, and manufacturing process is simple, cheap.The working principle of semiconductor thermistor is by temperature
Degree performance thermistor can be divided into two classes, and it is posive temperature coefficient thermistor that it is increased, which to rise resistance, with temperature, otherwise is subzero temperature
Spend coefficient resistance.Temperature-sensing element (device) is the temperature-sensitive element for having response and conversion function to ambient temperature or heat radiation.
The performance and the very big difference of metallic conductor of semiconductor thermistor performance, the resistance of metallic conductor get higher with temperature and are increased, and
General thermistor and metallic conductor are opposite.The resistance value of thermistor reduces as the temperature rises.Prior art enwinding type
Temperature-sensing element (device) resolving power is lower, and generally at 0 DEG C, resistance value is 100 Ω and volume is larger, it is slower to respond.With technology
Development, be badly in need of a kind of high resolution, small size, high response temperature-sensing element (device).
The purpose of the present invention is existing enwinding type temperature-sensing element (device) technology is further developed and improved.Sensitivity
Height, response is fast, stability is good.
Summary of the invention
The purpose of the present invention is place in view of the deficiency of the prior art, provide a kind of high resolution, small size,
The enwinding type temperature-sensing element (device) of height response.
The purpose of the present invention can be reached by the following measures.A kind of double redundancy temperature provided by the invention is sensitive first
Part, comprising: be wound on the platinum filament 2 and lead-out wire 4 of metallic framework 1, it is characterised in that: at least four lines are simultaneously wound in packet around platinum filament 2
It is rolled on the insulation liner film 5 of 1 cylinder of metallic framework, by being fixed on the lug plate 3 of ring cloth on 1 tail end of metallic framework, from
Two groups of double redundancy signals are drawn in the output of 4 the same end of lead-out wire.
The present invention has the following effects that compared with the prior art.
Resolving power is high, small in size.The present invention is on the metallic framework 1 using four lines and two groups of coiling simultaneously by the way of
Thinner 2 diameters of the platinum filament≤0.01mm of platinum filament compared with the prior art, it is this using four lines and by the way of, in same sensitivity
Under reduce resistance size thermal capacity.Under identical resistance size thermal capacity, copper thermistor, platinum thermoelectricity compared with the prior art
Resistance monofilament or mariages are wound on the smaller about traditional sensing element of the single redundancy temperature-sensing element (device) volume formed in insulation framework
The 1/3 of volume, temperature-coefficient of electrical resistance is bigger, and the resistance value of output is higher.And it is strong using the metallic framework of metallic framework coiling
Degree is big, good, corrosion-resistant, the very strong mechanical resistant environment capacity of rigidity, and high sensitivity, the precision of generation are high.
Resolving power is higher, and response is faster.The present invention is using four lines and around platinum filament 2 by being fixed on 1 tail end of metallic framework
The lug plate 3 of ring cloth exports from 4 the same end of lead-out wire and draws two groups of double redundancy signals.Two groups finally from 1 the same end of metallic framework
Export double redundancy signal, there are stable physical and chemical properties using metal platinum, temperature-coefficient of electrical resistance is big, 0 DEG C when resistance value
For the temperature-resistance characteristic of 500 Ω, the temperature signal experienced is converted into resistance and temperature relation close to linear resistance
Signal improves the response speed and bigger sensitivity resistor rate of thermal resistance in the range of whole measurement temperature.
Detailed description of the invention
Fig. 1 is the organigram of double redundancy temperature-sensing element (device) of the present invention.
In figure: 1 metallic framework, 2 platinum filaments, 3 lug plates, 4 lead-out wires, 5 insulation liner films, 6 outer layer insulation films, 7 absolutely
Edge film, 8 high strength fibre silks.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples, but does not therefore limit the present invention to the reality
It applies among a range.
Such as Fig. 1.A kind of double redundancy temperature-sensing element (device) provided by the invention, comprising: be wound on the platinum filament 2 of metallic framework 1
With lead-out wire 4, mainly by metallic framework 1, platinum filament 2, lug plate 3, lead-out wire 4, insulation liner film 5,8 groups of high strength fibre silk
At.Wherein, it at least four lines and is wound in around platinum filament 2 on the insulation liner film 5 for being wrapped in 1 cylinder of metallic framework, passes through fixation
The lug plate 3 of ring cloth on 1 tail end of metallic framework exports from 4 the same end of lead-out wire and draws two groups of double redundancy signals.To improve temperature
Precision of the sensing element under high and low temperature environment is spent, under high and low temperature environment, metallic framework 1 is by linear expansion coefficient and platinum filament 2
The hollow structure of close metal material manufacture, and the platinum filament 2 being wound on metallic framework 1, the two line is swollen to match.Platinum filament 2
Diameter before coiling is≤0.01mm, and resistance value at 0 DEG C is 500 Ω.
1 outer surface of metallic framework is uniform and smooth, is coated with one layer of insulated paint thereon, and drying insulated paint surface is coated with one layer
The adhesive of bonding cladding insulation liner film 5.It is uniformly distributed on insulation liner film 5 that there are four fairleads.Insulation liner film 5 wraps
It overlays on metallic framework 1.Four line gaps are uniform, mutually overlapped two groups and around 2 coiling of platinum filament, respectively from insulation liner film
It is drawn in 5 four fairleads.Four ends of platinum filament 2 are fixed with dedicated fixture after the completion of coiling.By temperature sensitivity
Element is put into insulating box or thermostat carries out just pace value, guarantees that every group of resistance signal output valve of temperature-sensing element (device) is 500
Ω+0.5Ω.Because platinum filament 2 cannot be connected directly with lead-out wire 4, therefore platinum filament 2 is respectively welded at lug plate made of metal material
Transition is carried out on 3.4 lead-out wires 4 are respectively welded on lug plate 3, length of lead-out wire can adjust according to actual needs, with height
Strength silk is fixed.To guarantee the insulation performance between lug plate 3 and metallic framework 1, lug plate 3 is by being wrapped in gold
The insulation film 7 belonged on 1 tail portion of skeleton separates, fixed by the high strength fibre silk 8 of uniform coiling.To guarantee temperature-sensing element (device)
Every group of platinum filament 2 resistance signal output valve be ± 0.2 Ω of 500 Ω, by temperature-sensing element (device) be put into insulating box or thermostat into
The accurate tone pitch of row.2 resistance value of platinum filament can be adjusted according to actual needs.It 2 outer surface of platinum filament will by one layer of adhesive coating
Platinum filament 2 is coated in outer layer insulation film 6.
Metallic framework 1 is the hollow knot of the higher metal material manufacture of and thermal coefficient close by linear expansion coefficient and platinum
Structure, the temperature-sensing element (device) are mounted on that total temperature probe is intracavitary, and outer surface is sealed, and guarantee its insulation performance, central hollow
Structure introduces atmosphere.The structure experience atmospheric temperature only need to directly by platinum filament by the metal-insulator skeleton of thin-walled, benefit
With the resistance value and temperature of metal platinum at the characteristic of certain functional relation, available resistance signal is exported.With traditional sensitivity member
Part is compared, the temperature-sensing element (device) have many advantages, such as it is small in size, about traditional sensing element volume 1/3, response it is fast.
Claims (7)
1. a kind of double redundancy temperature-sensing element (device), comprising: it is wound on the platinum filament (2) and lead-out wire (4) of metallic framework (1), it is special
Sign is: at least four lines are simultaneously wound on the insulation liner film (5) for being wrapped in metallic framework (1) cylinder around platinum filament (2), are passed through
It is fixed on the lug plate (3) of ring cloth on metallic framework (1) tail end, two groups of double redundancy letters are drawn in output from lead-out wire (4) the same end
Number, four lines and around platinum filament 2 by being fixed on the lug plate 3 of ring cloth on 1 tail end of metallic framework, from 4 the same end of lead-out wire, output is drawn
Two groups of double redundancy signals out, two groups finally export double redundancy signal from 1 the same end of metallic framework.
2. double redundancy temperature-sensing element (device) according to claim 1, which is characterized in that metallic framework (1) is expanded by line
The hollow structure of the coefficient metal material manufacture close with platinum filament (2), and the platinum filament (2) being wound on metallic framework (1), the two
Line is swollen to match.
3. double redundancy temperature-sensing element (device) according to claim 1, which is characterized in that the diameter before platinum filament (2) coiling is
≤ 0.01mm, resistance value at 0 DEG C are 500 Ω.
4. double redundancy temperature-sensing element (device) according to claim 1, which is characterized in that metallic framework (1) outer surface is uniform
It is smooth, it is coated with one layer of insulated paint thereon, drying insulated paint surface is coated with the glue of one layer of bonding cladding insulation liner film (5)
Stick.
5. double redundancy temperature-sensing element (device) according to claim 1, which is characterized in that four line gaps are uniform, do not overlap mutually
Two groups and around platinum filament (2) coiling, drawn from (5) four fairleads of insulation liner film respectively.
6. double redundancy temperature-sensing element (device) according to claim 1, which is characterized in that lug plate (3) is by being wrapped in gold
The insulation film (7) belonged on skeleton (1) tail portion separates, fixed by the high strength fibre silk (8) of uniform coiling.
7. double redundancy temperature-sensing element (device) according to claim 1, which is characterized in that platinum filament (2) outer surface passes through one layer
Platinum filament (2) is coated in outer layer insulation film (6) by adhesive coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710593579.0A CN109282910A (en) | 2017-07-20 | 2017-07-20 | Double redundancy temperature-sensing element (device) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710593579.0A CN109282910A (en) | 2017-07-20 | 2017-07-20 | Double redundancy temperature-sensing element (device) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109282910A true CN109282910A (en) | 2019-01-29 |
Family
ID=65184676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710593579.0A Pending CN109282910A (en) | 2017-07-20 | 2017-07-20 | Double redundancy temperature-sensing element (device) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109282910A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110887577A (en) * | 2019-11-28 | 2020-03-17 | 四川泛华航空仪表电器有限公司 | Dual-redundancy platinum resistance wire temperature sensor and preparation method thereof |
| CN111307697A (en) * | 2019-11-28 | 2020-06-19 | 四川泛华航空仪表电器有限公司 | Freezing test system |
| CN112362186A (en) * | 2020-11-13 | 2021-02-12 | 四川泛华航空仪表电器有限公司 | Temperature sensor based on binary channels platinum silk skeleton |
Citations (7)
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|---|---|---|---|---|
| US5115193A (en) * | 1990-12-05 | 1992-05-19 | Data Instruments, Inc. | Inductive linear displacement transducer and temperature-compensating signal processor |
| US20110299562A1 (en) * | 2010-06-08 | 2011-12-08 | Analysis And Measurement Services Corporation | Diverse and Redundant Resistance Temperature Detector |
| CN103234652A (en) * | 2013-04-19 | 2013-08-07 | 昆明贵研金峰科技有限公司 | Micro platinum temperature sensor and preparation method thereof |
| CN103698041A (en) * | 2013-12-01 | 2014-04-02 | 太原航空仪表有限公司 | Embedded platinum resistance type total temperature probe |
| CN204214566U (en) * | 2014-12-09 | 2015-03-18 | 福建宁德核电有限公司 | A kind of temperature measuring equipment |
| CN104535216A (en) * | 2014-12-02 | 2015-04-22 | 苏州长风航空电子有限公司 | Multi-redundant metal framework platinum resistor temperature sensing element and manufacturing method thereof |
| CN207215307U (en) * | 2017-07-20 | 2018-04-10 | 成都凯天电子股份有限公司 | The double remaining temperature-sensing element (device)s of enwinding type |
-
2017
- 2017-07-20 CN CN201710593579.0A patent/CN109282910A/en active Pending
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|---|---|---|---|---|
| US5115193A (en) * | 1990-12-05 | 1992-05-19 | Data Instruments, Inc. | Inductive linear displacement transducer and temperature-compensating signal processor |
| US20110299562A1 (en) * | 2010-06-08 | 2011-12-08 | Analysis And Measurement Services Corporation | Diverse and Redundant Resistance Temperature Detector |
| CN103234652A (en) * | 2013-04-19 | 2013-08-07 | 昆明贵研金峰科技有限公司 | Micro platinum temperature sensor and preparation method thereof |
| CN103698041A (en) * | 2013-12-01 | 2014-04-02 | 太原航空仪表有限公司 | Embedded platinum resistance type total temperature probe |
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| CN207215307U (en) * | 2017-07-20 | 2018-04-10 | 成都凯天电子股份有限公司 | The double remaining temperature-sensing element (device)s of enwinding type |
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| 孙吉星等: "《热工测量及显示仪表》", 电力工业出版社, pages: 103 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110887577A (en) * | 2019-11-28 | 2020-03-17 | 四川泛华航空仪表电器有限公司 | Dual-redundancy platinum resistance wire temperature sensor and preparation method thereof |
| CN111307697A (en) * | 2019-11-28 | 2020-06-19 | 四川泛华航空仪表电器有限公司 | Freezing test system |
| CN112362186A (en) * | 2020-11-13 | 2021-02-12 | 四川泛华航空仪表电器有限公司 | Temperature sensor based on binary channels platinum silk skeleton |
| CN112362186B (en) * | 2020-11-13 | 2023-08-01 | 四川泛华航空仪表电器有限公司 | Temperature sensor based on binary channels platinum silk skeleton |
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