CN201364671Y - Experimental instrument for researching temperature characteristic of temperature sensor - Google Patents
Experimental instrument for researching temperature characteristic of temperature sensor Download PDFInfo
- Publication number
- CN201364671Y CN201364671Y CNU2009201140352U CN200920114035U CN201364671Y CN 201364671 Y CN201364671 Y CN 201364671Y CN U2009201140352 U CNU2009201140352 U CN U2009201140352U CN 200920114035 U CN200920114035 U CN 200920114035U CN 201364671 Y CN201364671 Y CN 201364671Y
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- temperature sensor
- temperature
- heating
- refrigeration
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Abstract
The utility model discloses an experimental educational instrument and aims at providing an experimental instrument for researching the temperature characteristic of a temperature sensor. The experimental instrument comprises a panel and a temperature sensor inserted rod, wherein the panel is provided with a heating dry well assembly, a refrigeration dry well assembly, a PID temperature controller and a digital voltmeter, and connected with a working power. The experimental instrument can realize the research on the temperature characteristics of temperature sensors with different specifications in various experimental methods at the temperature range of 0 to 100 DEG C on the same experimental instrument, and save device resources.
Description
Technical field
The utility model relates to a kind of experiment teaching instrument, in particular, is a kind of experiment instrument of studying the temperature sensor temperature characterisitic.
Background technology
Temperature sensor is the device of detected temperatures, be widely used in fields such as industrial and agricultural production, scientific research and daily life, its kind is many, development is fast, as thermopair, thermistor, platinum resistance etc., utilize the thermopower of its generation or the temperature that the temperature variant characteristic of resistance is come Measuring Object, therefore, be widely applied on automobile, boats and ships, opertaing device, commercial measurement, communication apparatus.So, be listed in one of present universities and colleges Physical Experiment content by measuring the characteristic that several its physical quantitys of temperature sensor commonly used study the different temperatures sensor with the feature of variation of temperature.Generally, study the characteristic of temperature sensor, must begin to measure, every 10 ℃ of measurements once, reach 100 ℃ again, observe the variation of its temperature sensor physical quantity until temperature 0 ℃ of temperature.And at present the physical quantity ratio of school laboratory temperature sensor when measuring 0 ℃ of temperature is easier to, as long as temperature sensor inserted in the frozen water mixer just can measure, but when environment temperature is higher, to make it measure just very difficult until this stage of room temperature for 10 ℃ since 0 ℃ of every ascending temperature.Cause most of school laboratory carrying out temperature sensor temperature characterisitic when experiment only from room temperature, measuring room temperature to the temperature sensor physical quantity between 100 ℃ of the temperature by heating means again changes, undoubtedly, this temperature characterisitic to research all temps sensor is defective.Simultaneously, various in style because of temperature sensor, its experiment content and measuring method also have nothing in common with each other, and changing as Pt100 type temperature sensor physical quantity is resistance change, and electric bridge method is measured; It is that magnitude of voltage changes that LM35 type temperature sensor physical quantity changes, magnitude of voltage in the time of must measuring its different temperatures changes or the like, and the school laboratory all is monistic to the measurement that the temperature sensor physical quantity changes at present, measure as changing a kind of temperature sensor, should make up another set of experimental facilities according to its characteristic and experimental technique, therefore, measure many kinds temperature sensor, the corresponding also necessary experimental facilitiess that drop into more.
The utility model content
The purpose of this utility model is in order to overcome deficiency of the prior art, to provide a kind of and can and can adopt the experimental apparatus of several different methods to the temperature characterisitic research of different size temperature sensor in 0 ℃～100 ℃ scopes of same the enterprising trip temperature of experiment instrument.
The utility model is achieved through the following technical solutions:
A kind of experiment instrument of studying the temperature sensor temperature characterisitic comprises panel and temperature sensor inserted link, and described panel is provided with heating dry-well assembly, refrigeration dry-well assembly, PID temperature controller and digital voltmeter, and links to each other with working power.
As a kind of improvement of the present utility model, described heating dry-well assembly comprises insulating bushing and the heating copper billet that is fixedly connected, and electrothermal tube is filled in the electrothermal tube fixed sleeving and fixed with the electrothermal tube set nut; Pt100 type temperature sensor is housed on the described heating copper billet, and described Pt100 type temperature sensor is connected with described PID temperature controller, and described electrothermal tube is connected with described working power, all is drilled with the temperature sensor jack on described insulating bushing and the heating copper billet.
As a kind of improvement of the present utility model, described refrigeration dry-well assembly comprises the heating radiator of the insulating bushing, refrigeration aluminium block and the band fan that are fixedly connected, is provided with semiconductor cooling element between refrigeration aluminium block and the heating radiator; Described semiconductor cooling element links to each other with described working power, and controlled by the current regulator on the panel, Pt100 type temperature sensor is housed on the described refrigeration aluminium block, described Pt100 type temperature sensor is connected with described PID temperature controller, all is drilled with the temperature sensor jack on described insulating bushing and the refrigeration aluminium block.
As a kind of improvement of the present utility model, the quantity of described temperature sensor jack is 4.
As a kind of improvement of the present utility model, described temperature sensor inserted link is the airtight hollow metal tube of a roots and tops, in adorn a temperature sensor; The extension line of described temperature sensor links to each other with plug with lead by handle.
As a kind of improvement of the present utility model, described hollow metal tube is a hollow copper tubing; The temperature sensor installed of the inside has these five kinds of Pt100 type platinum resistance temperature sensor, NTC type thermistor temperature sensor, LM35 voltage-type integrated temperature sensor, AD590 current mode integrated temperature sensor and PN junction temperature sensors respectively.
As a kind of improvement of the present utility model, described working power is arranged in the metal cabinet of a sealing; Described panel is fixed on the surface of described cabinet.
As a kind of improvement of the present utility model, described panel connects the socket that lead is used when being provided with for experiment, and links to each other with described working power.
As a kind of improvement of the present utility model, the surface of described panel also is printed on the connection line of symbol, parameter and the different experiments method of electronic component.
Heating dry-well assembly described in the utility model is to make the heating dry-well rise to 100 ℃ gradually from environment temperature by heating element, and the heating dry-well can insert simultaneously for four temperature sensor inserted links;
Refrigeration dry-well assembly described in the utility model is to make the refrigeration dry-well reduce to 0 ℃ of temperature gradually from environment temperature by semiconductor cooling element, and the refrigeration dry-well can insert simultaneously for four temperature sensor inserted links;
PID temperature controller described in the utility model is connected in heating dry-well and refrigeration dry-well assembly, and the temperature setting and the real time temperature that can carry out when heating or cooling are measured;
Digital voltmeter described in the utility model is connected in temperature sensor, makes the magnitude of voltage of temperature sensor when different temperatures and measures or do electronics galvanometer usefulness;
Working power described in the utility model is made up of transformer and wiring board, provides to heating dry-well assembly, refrigeration dry-well assembly, PID temperature controller, digital voltmeter and required power supply when measuring.
The utility model is realized measurement and research to the temperature sensor temperature characterisitic by above-mentioned parts: one or four temperature sensor inserted links are inserted in the refrigeration dry-well assembly simultaneously, open working power, the PID temperature controller sets temperature required 0 ℃, make the refrigeration dry-well reduce to 0 ℃ of temperature gradually by semiconductor cooling element from environment temperature, after treating stability number minute, according to the temperature sensor of different size and use different measuring methods to measure, and the physical quantity of each temperature sensor when being recorded in 0 ℃ of temperature, then, the PID temperature controller is provided with a ladder temperature, change the working current of semiconductor cooling element then, make temperature rise to set ladder temperature, treat to measure again and write down behind the stability number minute the physical quantity of each temperature sensor, later on every a ladder setting and measure once, when treating that temperature rises to environment temperature, the temperature sensor inserted link is moved in the heating dry-well assembly, unlatching heating dry-well assembly power supply rises heating dry-well temperature gradually and is provided with and measures once every the ladder temperature, until 100 ℃ of temperature.Then, measurement data is carried out the research of each temperature sensor temperature characterisitic by computer graphics.
Owing to adopt technique scheme, the utlity model has following beneficial effect:
1, on same experiment instrument, can use distinct methods that the temperature sensor of different size is measured, reduce the investment and the energy savings of experimental facilities;
2, under the environment temperature condition with higher, the physical quantity of each temperature sensor between 0 ℃ to 100 ℃ of the energy measurements, perfect experiment content.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of 9 heating dry-well assemblies among Fig. 1;
Fig. 3 is the vertical view of Fig. 2;
Fig. 4 is the structural representation of 10 refrigeration dry-well assemblies among Fig. 1;
Fig. 5 is the structural representation of temperature sensor inserted link of the present utility model.
Among the figure: 1 panel, 2 cabinets, the 3PID temperature controller is regulated button, the 4PID temperature controller, 5 digital voltmeters, 6 heating, the refrigeration change-over switch, 7 current regulators, 8 sockets, 9 heating dry-well assemblies, 10 refrigeration dry-well assemblies, 11 insulating bushings, 12 heating copper billets, 13 electrothermal tubes, 14 electrothermal tube set nuts, 15 electrothermal tube fixed sleevings, the 16Pt100 temperature sensor, 17 temperature sensor jacks, 18 semiconductor cooling elements, 19 heating radiators, 20 fans, 21 set bolts, 22 fixed heads, 23 refrigeration aluminium blocks, 24 temperature sensors, 25 hollow copper tubings, 26 handles, 27 leads, 28 plugs.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
As shown in Figure 1, experiment instrument cabinet of the present utility model is a closed metal cabinet 2, and inside is equipped with the working power that parts such as transformer and wiring board are formed; The panel 1 of aluminum adopts screw retention on cabinet 2 surfaces, and panel is provided with heating dry-well assembly 9, refrigeration dry-well assembly 10, PID temperature controller 4 and digital voltmeter 5, and links to each other with working power.
The PID temperature controller also is housed on panel 1 regulates button 3, do the temperature rising or descend to being provided with to regulate to use; The PID temperature controller 4 that is installed on panel 1 can show real time temperature measured value when temperature value and refrigeration or heating are set; The digital voltmeter 5 that is installed on panel 1 display voltage value or make galvanometer and use when voltage method, current method or bridge measurement temperature sensor; The heating, refrigeration change-over switch 6 that is installed on panel 1 during for heating or refrigeration Switching power use; The current regulator 7 that is installed on panel 1 is used to regulate the semiconductor cooling element size of current, descends or rises with the control temperature; The socket 8 that is installed on panel 1 connects the usefulness of lead during for experiment; The heating dry-well assembly 9 that is installed on panel 1 can insert for the temperature sensor inserted link, and its room temperature to 100 ℃ temperature can be provided; The refrigeration dry-well assembly 10 that is installed on panel 1 can insert for the temperature sensor inserted link, and can provide its 0 ℃ to ambient temperature; Also be printed on the circuit connection diagram of five kinds of different measuring methods on the surface of panel 1.
Fig. 2, Fig. 3 are the structural representation of the utility model heating dry-well assembly.Among the figure, the fixing heating in insulating bushing 11 bottoms copper billet 12, temperature sensor jack 17 on the insulating bushing 11 with the heating copper billet 12 on four circular holes concentric, insert for the temperature sensor inserted link, heating copper billet 12 bottom centre are fixed with electrothermal tube fixed sleeving 15, electrothermal tube 13 is filled in the electrothermal tube fixed sleeving 15 and is fastening and be connected in working power with lead with electrothermal tube set nut 14, Pt100 temperature sensor 16 is housed also on the heating copper billet 12 and the usefulness lead is connected with PID temperature controller 4.
Fig. 4 is the structural representation of the utility model refrigeration dry-well assembly.Among the figure, insulating bushing 11 bottoms are refrigeration aluminium block 23 fixedly, four circular holes are concentric on temperature sensor jack 17 on the insulating bushing 11 and the refrigeration aluminium block 23, insert for the temperature sensor inserted link, semiconductor cooling element 18 is installed between refrigeration aluminium block 23 and the heating radiator 19, utilize fixed head 22 and set bolt 21 to make two planes of semiconductor cooling element 18 be close to refrigeration aluminium block 23 and heating radiator 19 respectively, heating radiator 19 belows also are fixed with fan 20, semiconductor cooling element 18 usefulness leads are connected with working power, and refrigeration aluminium block 23 also is equipped with Pt100 temperature sensor 16 and is connected with PID temperature controller 4 with lead.
Fig. 5 is the structural representation of the utility model temperature sensor inserted link.Among the figure, the temperature sensor inserted link is made up of temperature sensor 24, hollow copper tubing 25, handle 26, lead 27 and plug 28, wherein hollow copper tubing 25 1 ends are sealing, the other end is fixed in handle 26, temperature sensor 24 passes handle 26 to hollow copper tubing 25 blind end tops, and temperature sensor 24 usefulness leads 27 are connected with plug 28.
The utility model can be in 0 ℃ to 100 ℃ scope of temperature, the ladder temperature is set to the sensor of different size and adopt several different methods to carry out physical quantity and temperature characterisitic research arbitrarily.
A kind of concrete experimentation of the present utility model is as follows: in the temperature sensor jack 17 on a kind of (maximum four kinds) specification temperature sensor inserted link insertion refrigeration dry-well assembly 10, and plug 28 is inserted in the corresponding socket 8 according to the measuring method that the temperature sensor 24 of different size is adopted, at PID temperature controller 4 temperature being set by PID temperature controller adjusting button 3 is 0 ℃, to heat, refrigeration change-over switch 6 switches to the refrigeration direction, open working power and make semiconductor cooling element 18 work, treat to measure behind stability number when PID temperature controller 4 is shown as 0 ℃ minute the physical quantity and the record of each temperature sensor 24; Regulate button 3 by the PID temperature controller again and a ladder temperature is set at PID temperature controller 4, regulating current regulator 7 reduces semiconductor cooling element 18 working currents, temperature begins to rise, when treating that temperature rises to set ladder temperature, carry out the second time and measure and record, this process is until reaching room temperature; Then the temperature sensor inserted link is moved in the heating dry-well assembly 9, to heat, refrigeration change-over switch 6 switches to the heating direction, regulate button 3 by the PID temperature controller and identical ladder temperature more than the room temperature is set at PID temperature controller 4, open the heating work power supply, make electrothermal tube 13 work, treat to measure behind stability number when PID temperature controller 4 is shown as set ladder temperature minute the physical quantity and the record of each temperature sensor 24, this process is until reaching 100 ℃ of temperature.After the overall process measurement finishes, measurement data is imported computing machine and mapping analysis, grasp the temperature characterisitic of measured temperature sensor.
At last, it is also to be noted that what more than enumerate only is specific embodiment of the utility model.Obviously, the utility model is not limited to above embodiment, and many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model all should be thought protection domain of the present utility model.
Claims (9)
1, a kind of experiment instrument of studying the temperature sensor temperature characterisitic, comprise panel (1) and temperature sensor inserted link, it is characterized in that, described panel (1) is provided with heating dry-well assembly (9), refrigeration dry-well assembly (10), PID temperature controller (4) and digital voltmeter (5), and links to each other with working power.
2, the experiment instrument of research temperature sensor temperature characterisitic according to claim 1, it is characterized in that, described heating dry-well assembly (9) comprises insulating bushing (11) and the heating copper billet (12) that is fixedly connected, and electrothermal tube (13) is filled in the electrothermal tube fixed sleeving (15) and with electrothermal tube set nut (14) and fixed; Pt100 type temperature sensor (16) is housed on the described heating copper billet (12), described Pt100 type temperature sensor (16) is connected with described PID temperature controller (4), described electrothermal tube (13) is connected with described working power, all is drilled with temperature sensor jack (17) on described insulating bushing (11) and the heating copper billet (12).
3, the experiment instrument of research temperature sensor temperature characterisitic according to claim 1, it is characterized in that, described refrigeration dry-well assembly (10) comprises the heating radiator (19) of the insulating bushing (11), refrigeration aluminium block (23) and the band fan (20) that are fixedly connected, is provided with semiconductor cooling element (18) between refrigeration aluminium block (23) and the heating radiator (19); Described semiconductor cooling element (18) links to each other with described working power, and controlled by the current regulator (7) on the panel (2), Pt100 type temperature sensor (16) is housed on the described refrigeration aluminium block (23), described Pt100 type temperature sensor (16) is connected with described PID temperature controller (4), all is drilled with temperature sensor jack (17) on described insulating bushing (11) and the refrigeration aluminium block (23).
According to the experiment instrument of claim 2 or 3 described research temperature sensor temperature characterisitics, it is characterized in that 4, the quantity of described temperature sensor jack (17) is 4.
5, the experiment instrument of research temperature sensor temperature characterisitic according to claim 1 is characterized in that, described temperature sensor inserted link is the airtight hollow metal tube of a roots and tops, in adorn a temperature sensor (24); The extension line of described temperature sensor (24) links to each other with plug (28) with lead (27) by handle (26).
6, the experiment instrument of research temperature sensor temperature characterisitic according to claim 5 is characterized in that, described hollow metal tube is hollow copper tubing (25); The temperature sensor (24) installed of the inside has these five kinds of Pt100 type platinum resistance temperature sensor, NTC type thermistor temperature sensor, LM35 voltage-type integrated temperature sensor, AD590 current mode integrated temperature sensor and PN junction temperature sensors respectively.
7, the experiment instrument of research temperature sensor temperature characterisitic according to claim 1 is characterized in that, described working power is arranged in the metal cabinet (2) of a sealing; Described panel (1) is fixed on the surface of described cabinet (2).
8, the experiment instrument of research temperature sensor temperature characterisitic according to claim 7 is characterized in that, described panel (1) connects the socket (8) that lead is used when being provided with for experiment, and links to each other with described working power.
9, the experiment instrument of research temperature sensor temperature characterisitic according to claim 1 is characterized in that, the surface of described panel (1) also is printed on the connection line of the symbol of electronic component, parameter and different experiments method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201140352U CN201364671Y (en) | 2009-02-19 | 2009-02-19 | Experimental instrument for researching temperature characteristic of temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201140352U CN201364671Y (en) | 2009-02-19 | 2009-02-19 | Experimental instrument for researching temperature characteristic of temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201364671Y true CN201364671Y (en) | 2009-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2009201140352U Expired - Fee Related CN201364671Y (en) | 2009-02-19 | 2009-02-19 | Experimental instrument for researching temperature characteristic of temperature sensor |
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| CN (1) | CN201364671Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102800226A (en) * | 2012-07-10 | 2012-11-28 | 沈阳大学 | Digital display temperature resistance magnetic force heating stirrer for experiment |
| CN110763372A (en) * | 2019-11-29 | 2020-02-07 | 孝感华工高理电子有限公司 | Method for measuring resistance-temperature relation of NTC temperature sensor |
-
2009
- 2009-02-19 CN CNU2009201140352U patent/CN201364671Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102800226A (en) * | 2012-07-10 | 2012-11-28 | 沈阳大学 | Digital display temperature resistance magnetic force heating stirrer for experiment |
| CN110763372A (en) * | 2019-11-29 | 2020-02-07 | 孝感华工高理电子有限公司 | Method for measuring resistance-temperature relation of NTC temperature sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091216 Termination date: 20120219 |