CN209605964U - A kind of accurate temperature sensor of measurement - Google Patents
A kind of accurate temperature sensor of measurement Download PDFInfo
- Publication number
- CN209605964U CN209605964U CN201920111885.0U CN201920111885U CN209605964U CN 209605964 U CN209605964 U CN 209605964U CN 201920111885 U CN201920111885 U CN 201920111885U CN 209605964 U CN209605964 U CN 209605964U
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- probe
- casing
- measurement
- elastic plate
- shell
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Abstract
The utility model discloses a kind of accurate temperature sensors of measurement, feature be include heat-insulated bottom plate, shell, casing and thermally conductive probe, shell is fixedly connected with bottom plate, casing is arranged in shell and is fixedly connected with bottom plate, one end of probe is fixedly plugged in casing and the other end stretches out shell, the two sides of probe are provided with symmetrical and heat-insulated elastic plate, elastic plate is fixedly connected with bottom plate, shape memory alloy spring is fixedly installed between elastic plate and probe, resistance strain gage is pasted on elastic plate, the position of two resistance strain gages is symmetrical along probe；Advantage is the measurement that the temperature sensor realizes temperature by the cooperation of probe, SMA spring and resistance strain gage three, and temperature sensitivity is high, strong antijamming capability；And elastic plate and resistance strain gage are symmetrical arranged along probe, so that the temperature sensor can correct automatically the error of measurement, are made it have automatic calibration function, are enhanced the accuracy, stability and reliability of measurement result.
Description
Technical field
The utility model relates to a kind of accurate temperature sensors of measurement.
Background technique
Temperature sensor refers to the sensor that can be experienced temperature and be converted into usable output signal.It is common on the market at present
Temperature sensor mainly has resistance temperature detector and thermocouple temperature sensor etc., thermocouple temperature sensor be by
Two different metal wires engage, which is formed as temperature-sensitive portion (temperature detecting part), but due to metal wire
The heat conductivity of itself is low, so that the temperature measuring precision to measure object is unstable；And the resistance of resistance temperature detector
Not fairly linear with temperature curve, measurement error is larger.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of measurement accurate stable, and the preferable temperature of applicability
Sensor.
Technical solution adopted by the utility model to solve the above technical problems is as follows: a kind of accurate temperature sensing of measurement
Device, including heat-insulated bottom plate, shell, casing and thermally conductive probe, the shell is fixedly connected with the bottom plate, described
Casing is arranged in the shell and is fixedly connected with the bottom plate, and one end of the probe is fixedly plugged in described
In casing and the other end stretches out the shell, and the two sides of the probe are provided with symmetrical and heat-insulated elastic plate, described
Elastic plate be fixedly connected with the bottom plate, be fixedly installed between the elastic plate and the probe shape memory conjunction
Golden spring is pasted with resistance strain gage on the elastic plate, and the position of resistance strain gage described in two is along the probe
Symmetrically.
Further, internal screw thread is provided in the casing, one end of the probe is provided with external screw thread, described
It is spirally connected fixation in one end insertion of probe casing and with the casing.
Further, the material of the bottom plate, the shell, the casing and the elastic plate is heat-insulated material
Material or surface are coated with heat-barrier material.
Further, the material of the elastic plate is light aluminum alloy.
Further, the material of the probe is high-strength, high thermal conductivity alloyed copper.
Compared with prior art, the utility model has the advantages that the temperature sensor is answered by probe, SMA spring and resistance
Become the cooperation of piece three to realize the measurement of temperature, temperature sensitivity is high, strong antijamming capability, and temperature signal is passed through electricity
Learning signal indicates, can optimize in external circuits to result, improve the accuracy of measurement, but also temperature sensor is intelligent
Change, signal digitlization；And elastic plate and resistance strain gage are symmetrical arranged along probe, so that the temperature sensor can be to measurement
Error is corrected automatically, makes it have automatic calibration function, further enhance the accuracy of measurement result, stability and
Reliability；In addition, by probe carry out temperature conduction, the inside of unit under test can be protruded into, can to inside configuration temperature into
Row monitoring, with the temperature monitoring for distinct device or component, applicability is preferable for the material that probe also can be changed or shape.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
The utility model is described in further detail below in conjunction with figure embodiment.
As shown, a kind of accurate temperature sensor of measurement, including heat-insulated bottom plate 1, shell 2, casing 3 and thermally conductive
Probe 4, shell 2 are fixedly connected with bottom plate 1 by screw, and casing 3 is arranged in shell 2 and is fixedly connected with bottom plate 1, casing 3
It is inside provided with internal screw thread, one end of probe 4 is provided with external screw thread, and one end of probe 4 is inserted into casing 3 and is spirally connected with casing 3 solid
Fixed, the other end of probe 4 stretches out shell 2, and the two sides of probe 4 are provided with symmetrical and heat-insulated elastic plate 5, elastic plate 5 and bottom
Plate 1 is fixedly connected, and shape memory alloy spring (i.e. SMA spring) 6, elastic plate 5 are fixedly installed between elastic plate 5 and probe 4
On be pasted with resistance strain gage 7, the position of two resistance strain gages 7 is symmetrical along probe 4.
In above-described embodiment, bottom plate 1, shell 2, casing 3 and elastic plate 5 can coat heat-barrier material on its surface, and surface applies
The heat-barrier material covered can be commercially available isolation conduction type insulating moulding coating or spray painting, and the material of bottom plate 1, shell 2 and casing 3 can also
Think that heat-barrier material, the material of elastic plate 5 are light aluminum alloy etc., the material of probe 4 is high-strength, high thermal conductivity alloyed copper etc..
In above-described embodiment, the working principle of the temperature sensor are as follows: when needing to carry out temperature monitoring, probe 4 is pushed up
End in contact equipment is detected inside position or test specimen, resistance strain gage 7 is electrically connected with external circuit, probe 4 transmits temperature
Onto shape memory alloy spring (SMA spring) 6, when SMA spring 6 reaches phase transition temperature, SMA spring 6 is shunk, band dynamic elasticity
Plate 5 bends deformation, and the resistance of resistance strain gage 7 changes, and then changes the electric current of external circuits, realizes the prison of temperature
It surveys；After monitoring, probe 4 is removed from equipment under test, the temperature of SMA spring 6 is gradually decreased and is gradually recovered, and resistance is answered
The resistance for becoming piece 7 is also gradually recovered simultaneously, and electric current tends to initial value.
Claims (5)
1. a kind of accurate temperature sensor of measurement, it is characterised in that including heat-insulated bottom plate, shell, casing and thermally conductive spy
Stick, the shell are fixedly connected with the bottom plate, the casing be arranged in the shell and with the bottom plate
It is fixedly connected, one end of the probe is fixedly plugged in the casing and the other end stretches out the shell, described
The two sides of probe are provided with symmetrical and heat-insulated elastic plate, and the elastic plate is fixedly connected with the bottom plate, described
It is fixedly installed shape memory alloy spring between elastic plate and the probe, is pasted with resistance-strain on the elastic plate
The position of piece, resistance strain gage described in two is symmetrical along the probe.
2. a kind of accurate temperature sensor of measurement as described in claim 1, it is characterised in that: be provided in the casing
Internal screw thread, one end of the probe are provided with external screw thread, in one end insertion of probe casing and with it is described
Casing be spirally connected fixation.
3. a kind of accurate temperature sensor of measurement as described in claim 1, it is characterised in that: the bottom plate, described
The material of shell, the casing and the elastic plate is that heat-barrier material or surface are coated with heat-barrier material.
4. a kind of accurate temperature sensor of measurement as described in claim 1, it is characterised in that: the material of the elastic plate
For light aluminum alloy.
5. a kind of accurate temperature sensor of measurement as described in claim 1, it is characterised in that: the material of the probe is
High-strength, high thermal conductivity alloyed copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920111885.0U CN209605964U (en) | 2019-01-23 | 2019-01-23 | A kind of accurate temperature sensor of measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920111885.0U CN209605964U (en) | 2019-01-23 | 2019-01-23 | A kind of accurate temperature sensor of measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209605964U true CN209605964U (en) | 2019-11-08 |
Family
ID=68400345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920111885.0U Active CN209605964U (en) | 2019-01-23 | 2019-01-23 | A kind of accurate temperature sensor of measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209605964U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109724714A (en) * | 2019-01-23 | 2019-05-07 | 宁波大学 | A kind of accurate temperature sensor of measurement |
| CN113281377A (en) * | 2021-05-20 | 2021-08-20 | 中国人民解放军国防科技大学 | Device and method for measuring thermal dose of target object in explosion transient temperature field |
-
2019
- 2019-01-23 CN CN201920111885.0U patent/CN209605964U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109724714A (en) * | 2019-01-23 | 2019-05-07 | 宁波大学 | A kind of accurate temperature sensor of measurement |
| CN113281377A (en) * | 2021-05-20 | 2021-08-20 | 中国人民解放军国防科技大学 | Device and method for measuring thermal dose of target object in explosion transient temperature field |
| CN113281377B (en) * | 2021-05-20 | 2021-12-10 | 中国人民解放军国防科技大学 | Device and method for measuring thermal dose of target object in explosion transient temperature field |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Yangji Energy Co.,Ltd. Assignor: Ningbo University Contract record no.: X2022980025283 Denomination of utility model: An Accurate Temperature Sensor Granted publication date: 20191108 License type: Common License Record date: 20221207 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Orange Plastic Technology Co.,Ltd. Assignor: Ningbo University Contract record no.: X2023330000365 Denomination of utility model: A Temperature Sensor with Accurate Measurement Granted publication date: 20191108 License type: Common License Record date: 20230630 |