CN201016817Y - Temperature sensor experiment box - Google Patents
Temperature sensor experiment box Download PDFInfo
- Publication number
- CN201016817Y CN201016817Y CNU2007201237039U CN200720123703U CN201016817Y CN 201016817 Y CN201016817 Y CN 201016817Y CN U2007201237039 U CNU2007201237039 U CN U2007201237039U CN 200720123703 U CN200720123703 U CN 200720123703U CN 201016817 Y CN201016817 Y CN 201016817Y
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- CN
- China
- Prior art keywords
- temperature sensor
- casing
- temperature
- electric fan
- box body
- 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.)
- Expired - Fee Related
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- Devices For Use In Laboratory Experiments (AREA)
Abstract
The utility model asks for protecting a temperature sensor experimental box, which can improve the accuracy of the detection of the characteristics of a temperature sensor. A heat retaining box is adopted to be used as a box body. A stent for the placement of the temperature sensor is arranged in the center of the box body. Another position in the box body is equipped with a temperature controlled heater. An electric fan is installed near the heater in the box body. The flow direction of the electric fan is just against the heater. If the device is adopted in a characteristics experiment of the temperature sensor, wrong experiment conclusions caused by flow change can be avoided. Detection errors caused by a temperature gradient field can be eliminated, which is beneficial for the improvement of the accuracy of the temperature sensor characteristics detection.
Description
Technical field
The utility model relates to a kind of experimental provision of probe temperature sensor temperature characteristic.
Background technology
At present, when the teaching middle school student carry out the temperature sensor characteristic experiment with the sensor comprehensive experiment table, be on the experiment table top, to place a heating furnace, standard temperature sensor and dut temperature sensor are placed on the heating furnace top, controller control furnace temperature changes from low to high, simultaneously measurement standard temperature sensor and dut temperature sensor output signal draw the temperature characteristics of dut temperature sensor.This experimental provision has two defectives: one, because heating furnace and the temperature sensor that is placed on heating furnace top are exposed to the outside, in case ambient windstream changes, to cause the temperature of standard temperature sensor and dut temperature sensor environment of living in to fluctuate, then standard temperature sensor and dut temperature sensor output signal will change.Because the time constant of standard temperature sensor and dut temperature sensor is generally unequal, so error will appear in test result, cause the experiment conclusion that makes mistake.Its two because the temperature field is gradient fields, and standard temperature sensor and dut temperature sensor are difficult to be in same temperature aspect, even without variations in flow, also can there be error in test result.
Summary of the invention
In order to overcome above-mentioned two defectives that exist when existing sensor comprehensive experiment table carries out the temperature sensor characteristic experiment, the utility model provides a kind of temperature sensor experimental box, this experimental box can not only avoid because the wrong experiment conclusion that causes of variations in flow, and can eliminate the test error that the reason owing to temperature gradient field causes.
The technical scheme that its technical matters that solves the utility model adopts is: adopt the casing of insulation can as the temperature sensor experimental box, the rack of laying temperature sensor is arranged on central authorities in the casing, and the well heater of other position mounting strap temperature control in casing.
Further, also can near near the well heater electric fan be installed in casing, the airflow direction that can make the electric fan generation is over against well heater.Damage because temperature in the casing is too high in order to guarantee that electric fan is unlikely in use, preferably the motor with electric fan is installed in the casing outside, and machine shaft stretches in the casing, the terminal fan blade of installing.
When carrying out the temperature sensor characteristic experiment, because well heater and standard temperature sensor and dut temperature sensor are incubated in the casing with placing, the outer variations in flow of casing will can not make the temperature in the casing fluctuate, and also just can not influence test result.Simultaneously, because circulating current in the air in the effect of electric fan, casing is stirred and produces, evenly temperature in the casing, eliminated because the standard temperature sensor is different with dut temperature sensor installation site, be difficult to be in same temperature aspect and the error problem that brings.
Therefore, the device that employing the utility model proposes carries out the temperature sensor characteristic experiment, can avoid because the wrong experiment conclusion that causes of variations in flow, and can eliminate the test error that the reason owing to temperature gradient field causes, help improving the accuracy of probe temperature sensor temperature characteristic.
Description of drawings
Fig. 1 is the side view of this temperature sensor experimental box inner structure;
Fig. 2 is the vertical view of this temperature sensor experimental box inner structure.
Among the figure: 1 casing, 2 loam cakes, 3 well heaters, 4 racks, 5 motors, 6 machine shafts, 7 fan blade
Embodiment
As depicted in figs. 1 and 2, the casing 1 of this temperature sensor experimental box is the cuboid sheet steel casing that heat-insulation layer is arranged at a loam cake 2 openable six faces, the well heater 3 of band temperature control is installed in the casing 1 inner bottom surface side of keeping to the side, casing 1 inner bottom surface central authorities are provided with a rack 4, be used to place standard temperature sensor and dut temperature sensor, near the lateral surface of well heater 3 motor 5 is installed at casing 1, machine shaft 6 vertically passes the casing shell and reaches in the casing 1, the machine shaft 6 terminal fan blade 7 of installing, the airflow direction that fan produces is over against well heater 3.
Claims (3)
1. temperature sensor experimental box, it is characterized in that: its casing is an insulation can, central authorities are provided with the rack of laying temperature sensor in the casing, and the well heater of other position mounting strap temperature control in casing.
2. temperature sensor experimental box according to claim 1 is characterized in that: near near the well heater electric fan is installed in casing, the airflow direction that electric fan produces is over against well heater.
3. temperature sensor experimental box according to claim 1 and 2 is characterized in that: the motor of described electric fan is installed in the casing outside, and machine shaft stretches in the casing, the terminal fan blade of installing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201237039U CN201016817Y (en) | 2007-03-07 | 2007-03-07 | Temperature sensor experiment box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201237039U CN201016817Y (en) | 2007-03-07 | 2007-03-07 | Temperature sensor experiment box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201016817Y true CN201016817Y (en) | 2008-02-06 |
Family
ID=39057311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201237039U Expired - Fee Related CN201016817Y (en) | 2007-03-07 | 2007-03-07 | Temperature sensor experiment box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201016817Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749155A (en) * | 2012-07-09 | 2012-10-24 | 山东众海公共安全器材有限公司 | On-line detection device for temperature sensing detector |
| CN114041045A (en) * | 2019-04-12 | 2022-02-11 | 西部数据技术公司 | Thermal sensor array for molecular detection and related detection scheme |
-
2007
- 2007-03-07 CN CNU2007201237039U patent/CN201016817Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749155A (en) * | 2012-07-09 | 2012-10-24 | 山东众海公共安全器材有限公司 | On-line detection device for temperature sensing detector |
| CN114041045A (en) * | 2019-04-12 | 2022-02-11 | 西部数据技术公司 | Thermal sensor array for molecular detection and related detection scheme |
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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: 20080206 |