CN204115886U - A kind of temperature sensor - Google Patents
A kind of temperature sensor Download PDFInfo
- Publication number
- CN204115886U CN204115886U CN201420576019.6U CN201420576019U CN204115886U CN 204115886 U CN204115886 U CN 204115886U CN 201420576019 U CN201420576019 U CN 201420576019U CN 204115886 U CN204115886 U CN 204115886U
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- CN
- China
- Prior art keywords
- sleeve pipe
- terminal box
- stainless steel
- temperature sensor
- steel sleeve
- Prior art date
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- Expired - Fee Related
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model relates to a kind of temperature sensor, comprise stainless steel sleeve pipe, inside, described stainless steel sleeve pipe one end is provided with solder joint, described solder joint is arranged on porcelain insulating sleeve pipe, described porcelain insulating sleeve pipe is connected with terminal box by syndeton, described set of terminal box is on terminal box installation structure, and described terminal box side is provided with lead wire outlet, and in the middle part of described stainless steel sleeve pipe, both sides are provided with symmetrical mounting fixing parts.The utility model structure is simple, highly sensitive, stable performance, to rugged surroundings strong adaptability.
Description
Technical field
The utility model relates to a kind of proving installation, particularly relates to a kind of temperature sensor.
Background technology
Thermopair is a kind of temperature-sensing element, is a kind of instrument.Its direct measuring tempeature, and temperature signal is converted to thermopower signal, converted to the temperature of measured medium by electric meter (secondary instrument).The ultimate principle of thermocouple temperature measurement is the material conductor composition closed-loop path of two kinds of different components, when there is thermograde in two ends, just have electric current in loop to pass through, now just there is electromotive force-thermopower between two ends, so-called Seebeck effect that Here it is (Seebeck effect).The homogeneous conductor of two kinds of different components is thermode, and one end that temperature is higher is working end, and one end that temperature is lower is free end, under free end is in certain stationary temperature usually.According to the funtcional relationship of thermopower and temperature, make thermocouple indexing table; Phasing meter obtains under the condition of free end temperature 0 DEG C time, and different thermopairs has different phasing meter.
At present, thermocouple sensor technology has been tending towards perfect, but still there is following problem: complex structure, sensitivity are low, the problems such as antijamming capability is weak.
Utility model content
Technical problem to be solved in the utility model is to provide that a kind of structure is simple, highly sensitive, stable performance, to the adaptable temperature sensor of rugged surroundings.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of temperature sensor, comprise stainless steel sleeve pipe, inside, described stainless steel sleeve pipe one end is provided with solder joint, described solder joint is arranged on porcelain insulating sleeve pipe, described porcelain insulating sleeve pipe is connected with terminal box by syndeton, described set of terminal box is on terminal box installation structure, and described terminal box side is provided with lead wire outlet, and in the middle part of described stainless steel sleeve pipe, both sides are provided with symmetrical mounting fixing parts.
Thermocouple temperature sensor is that to utilize thermoelectric effect to carry out thermometric, and wherein, the one end being directly used as measuring media temperature is called working end, and described working end is solder joint one end, and the other end is called cold junction, and described cold junction is terminal box end; Cold junction is connected with Displaying Meter or matching instrument, and Displaying Meter can point out the thermoelectrical potential that thermocouple temperature sensor produces; Actual thermocouple temperature sensor is a kind of energy converter, and thermal power transfer is electric energy by it, with the thermoelectrical potential measuring tempeature produced, for the thermoelectrical potential of thermocouple temperature sensor.
On the basis of technique scheme, the utility model can also do following improvement.
Further; the non-terminal box end of described stainless steel sleeve pipe is blind end; the necessary long-term work of industrial thermocouple temperature sensor in the presence of a harsh environment; pay special attention to the infringement of measured medium to thermopair material; conventional cheap metal thermopair is unusable in oxidisability or corrosive atmosphere; noble-metal thermocouple should not be used in reducing atmosphere, therefore selects the protection that closed stainless steel protection sleeve pipe can realize temperature sensor.
Further, be provided with thermistor in described terminal box, described thermistor heat release, the temperature and the other end that reduce terminal box end produce electric potential difference.
Further, described lead wire outlet is copper-plated metal structure, and described copper-plated metal resistivity is low, good conductivity, is conducive to reducing in-fighting and the interference to test signal.
Further, described mounting fixing parts is stainless steel structure, and described stainless steel structure hardness is strong, contributes to the overload strengthening temperature sensor.
The beneficial effects of the utility model are: structure is simple, highly sensitive, stable performance, to rugged surroundings strong adaptability.
Accompanying drawing explanation
Fig. 1 is a kind of arrangement of temperature sensor schematic diagram of the utility model;
In accompanying drawing, the list of parts representated by each label is as follows: 1, stainless steel sleeve pipe, and 2, solder joint, 3, porcelain insulating sleeve pipe, 4, symmetrical mounting fixing parts, 5, syndeton, 6, terminal box, 7, terminal box installation structure, 8, lead wire outlet.
Embodiment
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Figure 1, a kind of temperature sensor, comprise stainless steel sleeve pipe 1, inside, described stainless steel sleeve pipe 1 one end is provided with solder joint 2, described solder joint 2 is arranged on porcelain insulating sleeve pipe 3, and described porcelain insulating sleeve pipe 3 is connected with terminal box 6 by syndeton 5, and described terminal box 6 is arranged on terminal box installation structure 7, described terminal box 6 side is provided with lead wire outlet 8, and in the middle part of described stainless steel sleeve pipe 1, both sides are provided with symmetrical mounting fixing parts 4.
Thermocouple temperature sensor is that to utilize thermoelectric effect to carry out thermometric, and wherein, the one end being directly used as measuring media temperature is called working end, and described working end is solder joint 2 one end, and the other end is called cold junction, and described cold junction is terminal box 6 end; Cold junction is connected with Displaying Meter or matching instrument, and Displaying Meter can point out the thermoelectrical potential that thermocouple temperature sensor produces; Actual thermocouple temperature sensor is a kind of energy converter, and thermal power transfer is electric energy by it, with the thermoelectrical potential measuring tempeature produced, for the thermoelectrical potential of thermocouple temperature sensor.
The non-terminal box end 6 of described stainless steel sleeve pipe 1 is blind end, the necessary long-term work of industrial thermocouple temperature sensor in the presence of a harsh environment, pay special attention to the infringement of measured medium to thermopair material, conventional cheap metal thermopair is unusable in oxidisability or corrosive atmosphere, noble-metal thermocouple should not be used in reducing atmosphere, therefore selects the protection that closed stainless steel protection sleeve pipe 1 can realize temperature sensor; In described terminal box, 6 are provided with thermistor, described thermistor heat release, and the temperature and the other end that reduce terminal box end produce electric potential difference; Described lead wire outlet 8 is copper-plated metal structure, and described copper-plated metal resistivity is low, good conductivity, is conducive to reducing in-fighting and the interference to test signal; Described symmetrical mounting fixing parts 4 is stainless steel structure, and described stainless steel structure hardness is strong, contributes to the overload strengthening temperature sensor.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. a temperature sensor, it is characterized in that, comprise stainless steel sleeve pipe, inside, described stainless steel sleeve pipe one end is provided with solder joint, described solder joint is arranged on porcelain insulating sleeve pipe, and described porcelain insulating sleeve pipe is connected with terminal box by syndeton, and described set of terminal box is on terminal box installation structure, described terminal box side is provided with lead wire outlet, and in the middle part of described stainless steel sleeve pipe, both sides are provided with symmetrical mounting fixing parts.
2. a kind of temperature sensor according to claim 1, it is characterized in that, the non-terminal box end of described stainless steel sleeve pipe is blind end.
3. a kind of temperature sensor according to claim 1, is characterized in that, be provided with thermistor in described terminal box.
4. a kind of temperature sensor according to claim 1, it is characterized in that, described lead wire outlet is copper-plated metal structure.
5. a kind of temperature sensor according to claim 1, it is characterized in that, described mounting fixing parts is stainless steel structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420576019.6U CN204115886U (en) | 2014-09-29 | 2014-09-29 | A kind of temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420576019.6U CN204115886U (en) | 2014-09-29 | 2014-09-29 | A kind of temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204115886U true CN204115886U (en) | 2015-01-21 |
Family
ID=52333184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420576019.6U Expired - Fee Related CN204115886U (en) | 2014-09-29 | 2014-09-29 | A kind of temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204115886U (en) |
-
2014
- 2014-09-29 CN CN201420576019.6U patent/CN204115886U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20150121 Termination date: 20150929 |
|
| EXPY | Termination of patent right or utility model |