CN2039018U - Thin film temp. sensor - Google Patents
Thin film temp. sensor Download PDFInfo
- Publication number
- CN2039018U CN2039018U CN 88216021 CN88216021U CN2039018U CN 2039018 U CN2039018 U CN 2039018U CN 88216021 CN88216021 CN 88216021 CN 88216021 U CN88216021 U CN 88216021U CN 2039018 U CN2039018 U CN 2039018U
- Authority
- CN
- China
- Prior art keywords
- sensitive element
- sensor
- temperature
- film
- sensor 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.)
- Withdrawn
Links
- 239000010409 thin film Substances 0.000 title abstract description 4
- 239000011159 matrix material Substances 0.000 claims description 20
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 2
- 230000005619 thermoelectricity Effects 0.000 claims description 2
- 238000009529 body temperature measurement Methods 0.000 abstract description 4
- 239000007787 solid Substances 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000010408 film Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 4
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- UPLPHRJJTCUQAY-WIRWPRASSA-N 2,3-thioepoxy madol Chemical compound C([C@@H]1CC2)[C@@H]3S[C@@H]3C[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@](C)(O)[C@@]2(C)CC1 UPLPHRJJTCUQAY-WIRWPRASSA-N 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Images
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model relates to a thin film temperature sensor which overcomes the defect that the precision of the temperature measurement is low caused by the big diameter of the sensing element of the existing senor. In the utility model, the structure that a sensing element is arranged on the sensor body for pressing, and the sensing element is protruded outside the senor body is adopted, effectively improving the precision of the temperature measurement of the senor. The utility model can be used to measure the solid temperature, and can also be used to measure the liquid temperature.
Description
The utility model relates to a kind of diaphragm type temperature sensor.
Fig. 1 has represented the structure of existing diaphragm type temperature sensor.It by sensor body 5, be contained in sensitive element matrix 4 on the sensor body, be plated on the sensitive element head film 7 be contained in the sensitive element matrix in and the thermocouple wire that has dielectric film 61 that is connected with film form.Film and thermocouple wire are for to make with a kind of raw material.The sensitive element matrix is as a utmost point of thermopair, and is connected with output lead 3.The method that thermocouple wire is contained on the sensitive element matrix is: matrix has a semi-round groove from the center dimidiation on each center line of half, puts the thermocouple wire that has insulation course in groove, then two halves altogether, is contained in the sensor body.On the sensitive element matrix head is a cone, is a bellmouth on the sensor head, and gland nut 2 is strained the two halves of sensitive element matrix firmly on sensor body.This sensor exists the shortcoming that the sensing head diameter is big, influence temperature measurement accuracy and response speed.It is the medial temperature of a zonule that diameter causes measured temperature greatly, and the diameter havoc temperature field of measured body.Because the diameter of sensing head is big, can not be used for the fluid measured temperature.
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, and a kind of improved diaphragm type temperature sensor is provided, and it has, and the sensing head diameter is little, the accurate characteristics of thermometric.
Technical solution of the present utility model is: the diaphragm type temperature sensor is by sensor body, be contained in sensitive element matrix on the sensor body, be plated in the film on the sensitive element head and be contained in the sensitive element matrix and and form with the thermocouple wire that has dielectric film that film links, on a rare occasion sensitive element matrix and an output lead of the utmost point link as thermoelectricity, its special character is, sensitive element is fitted on the sensor body head, and sensitive element protrudes outside sensor body.
The dielectric film of thermocouple wire can be a ceramic membrane.The method of loading onto thermocouple wire in sensitive element can be that brill one micropore is put into the micropore fix tightly to the thermocouple wire that has dielectric film then on sensitive element.
The utility model is compared with existing sensor has following advantage:
1. the sensing head diameter of sensor can be made very for a short time, and minimum diameter can reach 0.3mm.Because diameter is very little, this is bigger to the surface temperature variable gradient, and complex-shaped local transient temperature measurement has great practical value, and can guarantee that the temperature of measuring is similar to a temperature.And, reduced interference, thereby can obtain actual accurately transient temperature value the temperature field of measured medium because diameter is very little.
2. because sensing head is little, sensor not only can be used for surveying solid temperature, and can also be used to the fluid measured temperature.
Accompanying drawing drawing of the present utility model is described as follows:
Fig. 1 is existing sensor construction figure;
Fig. 2 is the utility model sensor construction figure.
The utility model will be described further in conjunction with the accompanying drawings:
In Fig. 2, sensor output lead assembly 16 usefulness locking caps 15 are fixed on the sensor body 14, and sensitive element 21 is fitted in sensor body 14, and sensitive element 21 protrudes outside sensor body 14 fronts.Two thermocouple wires 12,13 that link with sensor output lead assembly 16 are arranged on the sensitive element 21, sensitive element matrix 8 is as a utmost point of thermopair, directly be connected, the thermocouple wire 12 as another utmost point of thermopair is housed at the center of sensitive element matrix 8 with thermocouple wire 13.On the Naked of thermocouple wire silk 9,11, be surrounded by one deck ceramic insulating film 10.Be coated with thin film 7 on the head of sensitive element matrix 8, this film and Naked silk 9 link.Film 7 is a commaterial with Naked silk 9, and Naked silk 11 is a commaterial with sensitive element matrix 8, and Naked silk 9 is that two kinds of different materials are made with Naked silk 11.Film 7 constitutes hot junction with the surface of contact of matrix 8.
The method that thermocouple wire 12 is contained on the sensitive element matrix 8 is that brill one micropore is put into the micropore fix tightly to the thermocouple wire 12 that is surrounded by dielectric film then on matrix 8.After thermocouple wire 22 is installed, on the head of sensitive element matrix 8, plate film 7 again.This method has guaranteed and can do sensitive element 21 finely.
Claims (2)
1, a kind of diaphragm type temperature sensor, it by sensor body, be contained in sensitive element matrix on the sensor body, be plated on the sensitive element head film be contained in the sensitive element body in and the thermocouple wire that has dielectric film that is connected with film form, on a rare occasion sensitive element matrix and an output lead of the utmost point connect as thermoelectricity.It is characterized in that: sensitive element is fitted on the sensor body head, and sensitive element protrudes outside sensor body.
2, according to the described diaphragm type temperature sensor of claim 1, it is characterized in that: the dielectric film on the thermocouple wire is a ceramic membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88216021 CN2039018U (en) | 1988-11-11 | 1988-11-11 | Thin film temp. sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88216021 CN2039018U (en) | 1988-11-11 | 1988-11-11 | Thin film temp. sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2039018U true CN2039018U (en) | 1989-06-07 |
Family
ID=4848722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88216021 Withdrawn CN2039018U (en) | 1988-11-11 | 1988-11-11 | Thin film temp. sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2039018U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100405032C (en) * | 2006-05-29 | 2008-07-23 | 云南瑞升烟草技术（集团）有限公司 | Film-insulated temperature-sensing probe and its use for determining internaltemperature at cigarette burning |
| CN108007595A (en) * | 2017-11-21 | 2018-05-08 | 西北工业大学 | A kind of sonde-type thin-film thermocouple temperature sensor and preparation method thereof |
-
1988
- 1988-11-11 CN CN 88216021 patent/CN2039018U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100405032C (en) * | 2006-05-29 | 2008-07-23 | 云南瑞升烟草技术（集团）有限公司 | Film-insulated temperature-sensing probe and its use for determining internaltemperature at cigarette burning |
| CN108007595A (en) * | 2017-11-21 | 2018-05-08 | 西北工业大学 | A kind of sonde-type thin-film thermocouple temperature sensor and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |