CN204575746U - A kind of resistance temperature characteristic test device - Google Patents
A kind of resistance temperature characteristic test device Download PDFInfo
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- CN204575746U CN204575746U CN201520157016.3U CN201520157016U CN204575746U CN 204575746 U CN204575746 U CN 204575746U CN 201520157016 U CN201520157016 U CN 201520157016U CN 204575746 U CN204575746 U CN 204575746U
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- constant current
- current source
- temperature
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Abstract
The utility model discloses a kind of resistance temperature characteristic test device, comprise attemperator, power constant current source and testing sensor; Attemperator contains vacuum chamber; Sample is provided with in vacuum chamber; Sample and signal constant current source are in series; Power constant current source is in series with contactor; Contactor and signal constant current source are in parallel; Testing sensor can test sample temperature; During work, power constant current source connected by control contactor, and power constant current source electric current exports, and sample is generated heat and manufactures different temperature environments; Testing sensor is tested specimen temperature, and signal constant current source can forward and reverse output current, and its voltage probe can gather the voltage of corresponding temperature, and when gathering voltage, contactor disconnects; By the temperature that collects, voltage, electric current thus can temperature resistance characteristic be drawn; Resistance temperature characteristic test device described in the utility model utilizes resistance self-heating, eliminates outside thermal source, thus makes that proving installation is simpler, data are more accurate.
Description
Technical field
The utility model relates to a kind of resistance temperature characteristic test device in material analysis and electronic test equipment field.
Background technology
What usually adopt metallic resistance new testing device for temperature properties in prior art is four point probe or four line proving installations, as shown in Figure 1, be placed in vacuum chamber 1 by tested sample 1, vacuum chamber 1 is outer is calandria 3, calandria 3 and vacuum chamber 1 are placed in an insulation construction, sample 1 is in series with two terminals of signal constant current source 1, two probes of voltage table 5 are connected with sample 1 respectively, temp.-sensing wire 6 one end contacts with sample 1, the other end is connected with heating controller 7, heating controller 7 is by the feedback of temp.-sensing wire 6 temperature signal, control the heating of calandria 3, this device utilizes the mode of external heating each component combination to be become a heat insulation insulation construction 8, again at different temperatures by the measured temperature of heating temperature control device 7, the magnitude of voltage that voltage table 5 records, the current value of signal constant current source 1, Ohm law is used to draw the resistance-temperature characteristics of material.
Weak point is: this mode is very high to proving installation structural requirement, is difficult to meet requirement of experiment completely; Due to calandria 3, therefore the space of whole proving installation is comparatively large, makes the vacuum tightness in vacuum chamber 1 also be difficult to ensure, thermal loss is comparatively large and affect heat conduction efficiency.
Utility model content
The technical matters that the utility model mainly solves is to provide a kind of resistance temperature characteristic test device, make its structure space little, test easy, efficient, meet requirement of experiment.
For solving the problems of the technologies described above, the technical matters that the utility model mainly solves is to provide a kind of resistance temperature characteristic test device, includes attemperator and signal constant current source; Vacuum chamber is provided with in described attemperator; Sample is provided with in described vacuum chamber; Described sample and signal constant current source are in series; Described resistance temperature characteristic test device also includes power constant current source and testing sensor; Described power constant current source is in series with contactor K; Described contactor K leading-out terminal and signal constant current source are in parallel; Described testing sensor is connected with sample; Power constant current source connected by described contactor, can make sample heating power, manufacture different temperature environments; Described testing sensor can test sample temperature; Described signal constant current source contains voltage probe, the magnitude of voltage during corresponding temperature that described voltage probe can collect, according to the temperature collected, electric current, magnitude of voltage thus obtain the resistance value of relevant temperature.
Preferably, control contactor K connecting and disconnecting, can control power constant current source electric current export with disconnect.
Preferably, described contactor K disconnects the connection of power constant current source when signal constant current source carries out voltage signal acquisition.
The beneficial effects of the utility model are: proving installation structure space is little, it is easy, efficient to test, easily meet requirement of experiment, and test result is more accurate.
Accompanying drawing explanation
Fig. 1 is the proving installation schematic diagram adopted in prior art;
Fig. 2 is a kind of resistance temperature characteristic test device schematic diagram described in the utility model;
Wherein, 1, sample one; 2, vacuum chamber one; 3, calandria; 4, signal constant current source one; 5, voltage table; 6, temp.-sensing wire; 7, heating controller; 8, insulation construction; 9, attemperator; 10, signal constant current source; 11, vacuum chamber; 12, sample; 13, power constant current source; 14, testing sensor; 15, voltage probe; K, contactor.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to make advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection domain of the present utility model.
Described in the utility model a kind of resistance temperature characteristic test device as shown in Figure 2, includes attemperator 9 and signal constant current source 10; Vacuum chamber 11 is provided with in described attemperator 9; Sample 12 is provided with in described vacuum chamber 11; Described sample 12 is in series with signal constant current source 10; Described resistance temperature characteristic test device also includes power constant current source 13 and testing sensor 14; Described power constant current source 13 is in series with contactor K; Described contactor K leading-out terminal and signal constant current source 10 are in parallel; Described testing sensor 14 is connected with sample 12; Described contactor K connects power constant current source 13, can make sample 12 heating power, manufacture different temperature environments; Described testing sensor 14 can test sample 12 temperature; Described signal constant current source 10 is containing voltage probe 15, and magnitude of voltage during the corresponding temperature that described voltage probe 15 can collect, according to the temperature collected, electric current, magnitude of voltage thus obtain the resistance value of relevant temperature; The connecting and disconnecting of control contactor K, the electric current that can control power constant current source 13 exports and disconnects; Described contactor K disconnects the connection of power constant current source 13 when signal constant current source 10 carries out voltage signal acquisition.
The course of work of resistance temperature characteristic test device described in the utility model is as follows:
In fig. 2, during work, contactor K connects power constant current source 13, its big current is generated heat, described testing sensor 14 test sample 12 temperature by sample 12, and according to the break-make of probe temperature control contactor K, thus the electric current controlling power constant current source 13 exports; Described signal constant current source 10 can forward and reverse output current, and its voltage probe 15 can gather magnitude of voltage during relevant temperature; Described contactor K disconnects the connection of power constant current source 13 when signal constant current source 10 carries out voltage signal acquisition; According to the temperature collected, electric current, magnitude of voltage thus the temperature characterisitic of resistance can be drawn.
Resistance temperature characteristic test device described in the utility model utilizes resistance self-heating, does not need external heat source, make that proving installation is simpler, data more accurately, quick, efficiency is high.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model instructions and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (3)
1. a resistance temperature characteristic test device, includes attemperator (9) and signal constant current source (10); Vacuum chamber (11) is provided with in described attemperator (9); Sample (12) is provided with in described vacuum chamber (11); Described sample (12) and signal constant current source (10) are in series; It is characterized in that, described resistance temperature characteristic test device also includes power constant current source (13) and testing sensor (14); Described power constant current source (13) is in series with contactor (K); Described contactor (K) leading-out terminal and signal constant current source (10) are in parallel; Described testing sensor (14) is connected with sample (12); Power constant current source (13) connected by described contactor (K), can make sample (12) heating power, manufacture different temperature environments; Described testing sensor (14) can test sample (12) temperature; Described signal constant current source (10) is containing voltage probe (15), and magnitude of voltage during the corresponding temperature that described voltage probe (15) can collect, according to the temperature collected, electric current, magnitude of voltage thus obtain the resistance value of relevant temperature.
2. a kind of resistance temperature characteristic test device according to claim 1 is characterized in that, the connecting and disconnecting of control contactor (K), the electric current output that can control power constant current source (13) and disconnection.
3. a kind of resistance temperature characteristic test device according to claim 1 is characterized in that, described contactor (K) disconnects the connection of power constant current source (13) when signal constant current source (10) carries out voltage signal acquisition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520157016.3U CN204575746U (en) | 2015-03-19 | 2015-03-19 | A kind of resistance temperature characteristic test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520157016.3U CN204575746U (en) | 2015-03-19 | 2015-03-19 | A kind of resistance temperature characteristic test device |
Publications (1)
| Publication Number | Publication Date |
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| CN204575746U true CN204575746U (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520157016.3U Expired - Fee Related CN204575746U (en) | 2015-03-19 | 2015-03-19 | A kind of resistance temperature characteristic test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105717362A (en) * | 2016-04-22 | 2016-06-29 | 滨州学院 | Measuring device and method for resistivity |
-
2015
- 2015-03-19 CN CN201520157016.3U patent/CN204575746U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105717362A (en) * | 2016-04-22 | 2016-06-29 | 滨州学院 | Measuring device and method for resistivity |
| CN105717362B (en) * | 2016-04-22 | 2018-11-23 | 滨州学院 | Resistivity test device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20160319 |