CN104990641A - Two-dimensional planar temperature field test sensing element and manufacturing method thereof - Google Patents
Two-dimensional planar temperature field test sensing element and manufacturing method thereof Download PDFInfo
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- CN104990641A CN104990641A CN201510393908.8A CN201510393908A CN104990641A CN 104990641 A CN104990641 A CN 104990641A CN 201510393908 A CN201510393908 A CN 201510393908A CN 104990641 A CN104990641 A CN 104990641A
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Abstract
A two-dimensional planar temperature field test sensing element and a manufacturing method thereof belong to the field of sensing element manufacturing methods and test methods. The two-dimensional planar temperature field test sensing element is composed of a film in a first layer, a sensitive element array and transverse electrodes in a second layer, an insulated thin layer in a third layer, longitudinal electrodes in a fourth layer, and an insulated protective film in a fifth layer. The film in the first layer is made of a plastic film material. The second layer includes the sensitive element array and the transverse electrodes which are printed on the film in the first layer by a printing method, wherein the sensitive element array is printed with a conductive polymer composite material, and the transverse electrodes are printed with conductive silver pulp. The insulated thin layer in the third layer is printed with resin. The longitudinal electrodes in the fourth layer are also made by printing. The insulated protective film in the fifth layer is printed with resin. The test sensing element can test a two-dimensional planar temperature field, the test method is simple, the precision is high, and the range of test is met. Meanwhile, the test sensing element can be mass-produced under printing process conditions, is low in cost, and has a good effect.
Description
Technical field
The present invention relates to a kind of sensing element method for making and method of testing, especially a kind of two-dimensional planar temperature field test sensing element and preparation method thereof.
Background technology
Method at present for two-dimensional planar temperature field test is mainly divided into contacting test means and non-contact testing method.Contacting test means mainly adopts multiple spot thermistor or thermopair to test, this method is layouted limited, each thermistor will pick out p-wire, take large quantity space, affect testing precision, under the impact of the factors such as space constraint, environmental baseline and equipment requirement, more difficultly realize effective and feasible temperature field measurement.Indirectly testing method mainly contains the measuring method of acoustics and image procossing, wherein acoustic thermometry technology mainly according to sound wave in media as well velocity of propagation with pass through medium temperature change and change principle, extrapolate the temperature of measured medium, the method of this thermometry, by the impact of media components, reconstruction algorithm precision, ground unrest, sound wave interference refraction etc., is applied and is often restricted; The radiant thermometric technology of image procossing is according to the funtcional relationship of object between different spectral radiance and temperature, realize the measurement to temperature, because radiation is by the impact of the scattering, attenuation coefficient etc. of media particle, the range of application of this method of testing is restricted.
The thermoelectric (al) type thermometry adopted in contact temperature-measuring method is that temperature analog signal is converted into electric signal, realizes the measurement to temperature by electric signal power.Thermoelectricity thermometry now comparative maturity, the advantage such as utilizes the thermoelectricity temperature element of this technology manufacture to have to measure accurately, thermal inertia is little.In engineering and shop experiment, in order to obtain its two-dimension temperature field distribution, usual way many thermistors or thermopair is imbedded or inserts inside soil body, carries out temperature field test by directly contacting, this will produce disturbance to object structures, affect temperature field test precision.And temperature-sensing element is subject to the restriction of exotic material, contact temperature-measuring sensing element is generally only applicable to the temperature survey environment of middle low temperature environment.
In view of above-mentioned two-dimensional planar temperature field measures present situation, develop and sensing element and preparation method thereof is tested to the two-dimensional planar temperature field of temperature variation sensitivity, in engineering and shop experiment, two-dimensional planar temperature field test provides new test sensing element.
Summary of the invention
Technical matters: the object of the invention is to provide a kind of and there is higher temperature sensitive properties, two-dimensional planar temperature field test sensing element that test specification is large and preparation method thereof.
Technical scheme: the object of the present invention is achieved like this: this sensing element has the film of ground floor and bottom, sensitive element display and transverse electrode, the heat insulating lamina of third layer, the longitudinal electrode of the 4th layer and the insulating protective film on layer 5 and upper strata of the second layer; Ground floor, the second layer, third layer, the 4th layer and layer 5 are linked in sequence.
The method for making of sensing element, first selects bottom film, sensitive element to display matrix, electrode material, heat insulating lamina and insulation protection membrane material; Then conductive black or carbon nano-tube and sensitive element are displayed matrix and carry out mixed preparing conductive polymer composite, and be printed on the film that chooses and form sensitive element display layer; Afterwards the electrode material chosen also is printed on base plate and forms transverse electrode, and connect upper sensitive element display; Then utilize the heat insulating lamina material chosen to print heat insulating lamina, republish longitudinal electrode, heat insulating lamina is between transverse electrode and longitudinal electrode, by two-layer electrode insulation; Finally, the insulating protective film print material chosen is formed insulation protection rete in the superiors, plays a protective role.
Sensitive element display (2) adopts conductive polymer composite printing to form; Sensitive element display (2) adopts thermally sensitive carbon black or carbon nano-tube filled resin-based conductive polymer composite; Described film can select polyimide as higher in temperature tolerance range, thickness 0.1 ~ 0.3mm; Sensitive element display matrix is resin material, is fully mixed into conductive polymer composite with conductive black or carbon nano-tube; The conductive silver paste that electrode material coupling market is sold or added in rubber by conductive silver powder is composited; Insulation course and insulating protective film select identical resin material; To ensure that once printed layers is printed after solidifying completely again when printing.
Beneficial effect, owing to have employed such scheme, the film of ground floor (orlop) adopts plastic sheeting, then the conductive polymer composite of carbon black or carbon nano-tube potting resin base is printed on film, form sensitive element display after cured, then be printed on film by electrode material, printing position and sensitive element display certain overlapping, ensure that conduction connects, form transverse electrode layer.Afterwards resin material printing is formed heat insulating lamina, republish electrode material and form longitudinal electrode, the object of heat insulating lamina ensures to insulate between transverse electrode and longitudinal electrode, forms open circuit.Finally resin material is printed in layer 5 (the superiors), covers the sensitive element display and electrode that are positioned at below, play the effect of insulation protection.The resin-based conductive macromolecule sensitive element display be printed on film has temperature sensitivity, and its resistance value generation respective change, can test the change of temperature according to this when the temperature is changed.Transverse electrode and longitudinal electrode play the effect that connecting test equipment and sensitive element display, and belong to test data wire.The insulating protective film of the superiors is the effects such as insulation and waterproofing protection, avoids sensitive element display and electrode to be exposed in environment and is interfered, affect measuring accuracy.
The two-dimensional planar temperature field test sensing element made, can realize the two-dimensional planar temperature field test in engineering and shop experiment, major advantage has:
1, structure is simple, and adopt typography, it is convenient to make, and cost is low.
2, under printing process conditions, that display sensitive element size and spacing can be done is very little, increases the test density in temperature field, improves the measuring accuracy in temperature field.
3, the sensitive element that conductive polymer composite is made displays, and make sensing element have higher temperature sensitive properties, test specification is large.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of two-dimensional planar temperature field test sensing element of the present invention.
Fig. 2 is ground floor film figure of the present invention.
Fig. 3 is second layer sensitive element array of the present invention and transverse electrode figure.
Fig. 4 is third layer heat insulating lamina figure of the present invention.
Fig. 5 is the 4th layer of longitudinal electrode figure of the present invention.
Fig. 6 is layer 5 insulating protective film figure of the present invention.
In figure, 1, film; 2, sensitive element display; 3, transverse electrode; 4, heat insulating lamina; 5, longitudinal electrode; 6, insulating protective film.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are further described:
This sensing element is displayed formed with transverse electrode, the heat insulating lamina of third layer, the longitudinal electrode of the 4th layer and the insulating protective film on layer 5 and upper strata by the film of ground floor and bottom, the sensitive element of the second layer, and ground floor, the second layer, third layer, the 4th layer and layer 5 are linked in sequence.
The method for making of sensing element, first selects bottom film, sensitive element to display matrix, electrode material, heat insulating lamina and insulation protection membrane material; Then conductive black or carbon nano-tube and sensitive element are displayed matrix and carry out mixed preparing conductive polymer composite, and be printed on the film that chooses and form sensitive element display layer; Afterwards the electrode material chosen also is printed on base plate and forms transverse electrode, and connect upper sensitive element display; Then utilize the heat insulating lamina material chosen to print heat insulating lamina, republish longitudinal electrode, heat insulating lamina is between transverse electrode and longitudinal electrode, by two-layer electrode insulation; Finally, the insulating protective film print material chosen is formed insulation protection rete in the superiors, plays a protective role.
Sensitive element display 2 adopts conductive polymer composite printing to form; Sensitive element display 2 adopts thermally sensitive carbon black or carbon nano-tube filled resin-based conductive polymer composite; Described film can select polyimide as higher in temperature tolerance range, thickness 0.1 ~ 0.3mm; Sensitive element display matrix is resin material, is fully mixed into conductive polymer composite with conductive black or carbon nano-tube; The conductive silver paste that electrode material coupling market is sold or added in rubber by conductive silver powder is composited; Insulation course and insulating protective film select identical resin material; To ensure that once printed layers is printed after solidifying completely again when printing.
Embodiment 1: as shown in Figure 1; a kind of two-dimensional planar temperature field test sensing element of the present invention, it displays 2 by the film 1 of ground floor, the sensitive element of the second layer and forms with transverse electrode 3, the heat insulating lamina 4 of third layer, the longitudinal electrode 5 of the 4th layer and the insulating protective film 6 of layer 5.Select Kapton as larger in temperature tolerance range as the film 1 of ground floor, the thickness of film 1 selects 0.1mm.The sensitive element display 2 of the second layer, select epoxy resin as matrix, conductive black, as compaction material, is mixed with conductive polymer composite, is then printed on film 1; Before printing, film 1 upper surface is clean with solvent scouring, ensure printing effect.The transverse electrode 3 of the second layer uses printable conductive silver paste is bought in market to be printed onto on film 1 equally, sensitive element display 2 with have overlapping between transverse electrode 3, ensure to be electrically connected reliably.The heat insulating lamina 4 of third layer selects epoxide resin material to be directly printed on specified location, the longitudinal electrode 5 that conductive silver paste forms the 4th layer is republished after material cured to be printed, heat insulating lamina, between transverse electrode 3 and longitudinal electrode 5, makes open circuit between them; The insulating protective film 6 of layer 5 adopts epoxy resin printing to form; select the material identical with heat insulating lamina 4; insulating protective film 6 by print before sensitive element display 2, transverse electrode 3, heat insulating lamina 4 and longitudinal electrode 5 all standing, play insulation protection effect.
During printing; successively at film 1 (shown in Fig. 2) above printing sensitive element display 2 (shown in Fig. 3), transverse electrode 3 (shown in Fig. 3), heat insulating lamina 4 (Fig. 4 is shown), longitudinal electrode 5 (shown in Fig. 5) and the insulating protective film 6 (shown in Fig. 6) of ground floor, each printing will ensure that the material printed last time carries out after having solidified completely again.After the insulating protective film 6 of layer 5 solidifies completely, just obtain the sensing element of two-dimensional planar temperature field test.
Embodiment 2: as shown in Figure 1; a kind of two-dimensional planar temperature field test sensing element of the present invention, it displays 2 by the film 1 of ground floor, the sensitive element of the second layer and forms with transverse electrode 3, the heat insulating lamina 4 of third layer, the longitudinal electrode 5 of the 4th layer and the insulating protective film 6 of layer 5.Select Kapton as larger in temperature tolerance range as the film 1 of ground floor, the thickness of film 1 selects 0.1mm.The sensitive element display 2 of the second layer, select epoxy resin as matrix, carbon nano-tube, as compaction material, is mixed with conductive polymer composite, is then printed on film 1; Before printing, film 1 upper surface is clean with solvent scouring, ensure printing effect.The transverse electrode 3 of the second layer uses printable conductive silver paste is bought in market to be printed onto on film 1 equally, sensitive element display 2 with have overlapping between transverse electrode 3, ensure to be electrically connected reliably.The heat insulating lamina 4 of third layer selects epoxide resin material to be directly printed on specified location, the longitudinal electrode 5 that conductive silver paste forms the 4th layer is republished after material cured to be printed, heat insulating lamina, between transverse electrode 3 and longitudinal electrode 5, makes open circuit between them; The insulating protective film 6 of layer 5 adopts epoxy resin printing to form; select the material identical with heat insulating lamina 4; insulating protective film 6 by print before sensitive element display 2, transverse electrode 3, heat insulating lamina 4 and longitudinal electrode 5 all standing, play insulation protection effect.
During printing; successively at film 1 (shown in Fig. 2) above printing sensitive element display 2 (shown in Fig. 3), transverse electrode 3 (shown in Fig. 3), heat insulating lamina 4 (Fig. 4 is shown), longitudinal electrode 5 (shown in Fig. 5) and the insulating protective film 6 (shown in Fig. 6) of ground floor, each printing will ensure that the material printed last time carries out after having solidified completely again.After the insulating protective film 6 of layer 5 solidifies completely, just obtain two-dimensional planar temperature field test sensing element.
Claims (3)
1. a two-dimensional planar temperature field test sensing element, is characterized in that: the insulating protective film (6) that this sensing element has the film (1) of ground floor, the sensitive element of the second layer displays (2) and transverse electrode (3), the heat insulating lamina (4) of third layer, the longitudinal electrode (5) of the 4th layer and layer 5; Ground floor, the second layer, third layer, the 4th layer and layer 5 are linked in sequence.
2. the method for making of a kind of two-dimensional planar temperature field test sensing element according to claim 1, it is characterized in that: the method for making of sensing element, first select bottom film, sensitive element to display matrix, electrode material, heat insulating lamina and insulation protection membrane material; Then conductive black or carbon nano-tube and sensitive element are displayed matrix and carry out mixed preparing conductive polymer composite, and be printed on the film that chooses and form sensitive element display layer; Afterwards the electrode material chosen also is printed on base plate and forms transverse electrode, and connect upper sensitive element display; Then utilize the heat insulating lamina material chosen to print heat insulating lamina, republish longitudinal electrode, heat insulating lamina is between transverse electrode and longitudinal electrode, by two-layer electrode insulation; Finally, the insulating protective film print material chosen is formed insulation protection rete in the superiors, plays a protective role.
3. the method for making of a kind of two-dimensional planar temperature field test sensing element according to claim 2, is characterized in that: sensitive element display (2) adopts conductive polymer composite printing to form; Sensitive element display (2) adopts thermally sensitive carbon black or carbon nano-tube filled resin-based conductive polymer composite; Described film can select polyimide as higher in temperature tolerance range, thickness 0.1 ~ 0.3mm; Sensitive element display matrix is resin material, is fully mixed into conductive polymer composite with conductive black or carbon nano-tube; The conductive silver paste that electrode material coupling market is sold or added in rubber by conductive silver powder is composited; Insulation course and insulating protective film select identical resin material; To ensure that once printed layers is printed after solidifying completely again when printing.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107238446A (en) * | 2016-03-28 | 2017-10-10 | 新材料与产业技术北京研究院 | Detector unit and temperature detector |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6137669A (en) * | 1998-10-28 | 2000-10-24 | Chiang; Justin N. | Sensor |
| CN101885463A (en) * | 2010-06-21 | 2010-11-17 | 东北大学 | Development method of flexible pressure-sensitive element based on carbon nano-tube filled high polymer composite material |
| CN203011566U (en) * | 2012-11-20 | 2013-06-19 | 林志娟 | Array temperature sensor |
| CN203070853U (en) * | 2013-01-30 | 2013-07-17 | 株式会社村田制作所 | Thermistor array and temperature sensor |
| CN104236740A (en) * | 2013-06-08 | 2014-12-24 | 浙江工商大学 | Strip-shaped temperature distribution test element and manufacturing method thereof |
-
2015
- 2015-07-07 CN CN201510393908.8A patent/CN104990641A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6137669A (en) * | 1998-10-28 | 2000-10-24 | Chiang; Justin N. | Sensor |
| CN101885463A (en) * | 2010-06-21 | 2010-11-17 | 东北大学 | Development method of flexible pressure-sensitive element based on carbon nano-tube filled high polymer composite material |
| CN203011566U (en) * | 2012-11-20 | 2013-06-19 | 林志娟 | Array temperature sensor |
| CN203070853U (en) * | 2013-01-30 | 2013-07-17 | 株式会社村田制作所 | Thermistor array and temperature sensor |
| CN104236740A (en) * | 2013-06-08 | 2014-12-24 | 浙江工商大学 | Strip-shaped temperature distribution test element and manufacturing method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107238446A (en) * | 2016-03-28 | 2017-10-10 | 新材料与产业技术北京研究院 | Detector unit and temperature detector |
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