CN115727969A - Temperature detection device based on metal nanoparticles - Google Patents
Temperature detection device based on metal nanoparticles Download PDFInfo
- Publication number
- CN115727969A CN115727969A CN202111009847.2A CN202111009847A CN115727969A CN 115727969 A CN115727969 A CN 115727969A CN 202111009847 A CN202111009847 A CN 202111009847A CN 115727969 A CN115727969 A CN 115727969A
- Authority
- CN
- China
- Prior art keywords
- trapezoidal
- container
- trapezoidal container
- detection device
- opening
- 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.)
- Pending
Links
Images
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention relates to a temperature detection device based on metal nano-particles, which comprises a trapezoidal container, a trapezoidal sliding block and a plurality of metal nano-particles, wherein the trapezoidal container is provided with a cavity; one end of the trapezoidal container is provided with an opening; the cross section area of the end of the trapezoidal container, which is provided with the opening, is larger than that of the end of the trapezoidal container, which is not provided with the opening; the trapezoidal container is made of thermal expansion material; the trapezoidal sliding block is arranged at one end of the trapezoidal container, which is provided with an opening; the trapezoidal sliding block and the trapezoidal container form a closed cavity; the plurality of metal nano-particles carry the same charge, and the plurality of metal nano-particles are uniformly distributed in the closed cavity. The temperature can be detected by only irradiating the closed cavity with light and detecting the change of the resonance peak of the transmitted light, so that the temperature detection device is convenient to use; in addition, the volume change of the closed cavity can greatly influence the position of a resonance peak of the transmitted light, namely the temperature change can greatly influence the resonance peak of the transmitted light, so that the invention has extremely high detection sensitivity.
Description
Technical Field
The invention relates to the technical field of temperature detection, in particular to a temperature detection device based on metal nanoparticles.
Background
A temperature sensor is a sensor that senses temperature and converts it into a usable output signal. The temperature sensor is the core part of the temperature measuring instrument and has a plurality of varieties. The sensor is classified into a thermal resistor and a thermocouple according to the characteristics of the sensor material and the electronic component.
The thermal resistance is a resistance value of metal which changes with temperature. For different metals, the resistance value changes differently for each temperature change, and the resistance value can be directly used as an output signal. The thermal resistance is divided into two variation types of positive temperature coefficient and negative temperature coefficient; the thermocouple consists of two wires of different materials welded together at the ends. The temperature of the heating point can be accurately known by measuring the ambient temperature of the unheated part. It is called a thermocouple because it must have two conductors of different materials. Thermocouples made of different materials are used in different temperature ranges, and their sensitivities are different. The sensitivity of the thermocouple refers to the variation of the output potential difference when the temperature of the heating point changes by 1 ℃. For most metal supported thermocouples, this value is between about 5 and 40 μ v/deg.C.
Both thermal resistance and thermocouple sensors convert temperature signals into electrical signals, so as to reflect temperature information, and because of this, the use of the existing temperature sensors is greatly influenced by the transmission of the electrical signals, the detection accuracy is often unsatisfactory, and the use of the existing temperature sensors is greatly limited.
Disclosure of Invention
The invention aims to provide a temperature detection device based on metal nanoparticles, which can detect temperature more conveniently and sensitively.
In order to achieve the purpose, the invention provides the following scheme:
a metal nanoparticle-based temperature detection device comprises a trapezoidal container, a trapezoidal slider and a plurality of metal nanoparticles;
one end of the trapezoidal container is provided with an opening; the cross section area of one end of the trapezoidal container, which is provided with the opening, is larger than that of one end of the trapezoidal container, which is not provided with the opening; the trapezoidal container is made of a thermal expansion material;
the trapezoidal sliding block is arranged at one end of the trapezoidal container, which is provided with an opening; the trapezoidal sliding block and the trapezoidal container form a closed cavity;
the metal nano particles are charged in the same kind, and are uniformly distributed in the closed cavity.
Optionally, the temperature detection device based on metal nanoparticles further comprises a light generator, and light emitted by the light generator is transmitted through the closed cavity.
Optionally, the inner wall of the trapezoidal container and the trapezoidal sliding block are also charged; the inner wall of the trapezoidal container, the trapezoidal sliding block and the metal nano particles are charged with the same kind of charges.
Optionally, the metal nanoparticles are spherical in shape.
Optionally, the spherical shape has a diameter of 100nm to 200nm.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the invention discloses a temperature detection device based on metal nano-particles, which comprises a trapezoidal container, a trapezoidal sliding block and a plurality of metal nano-particles, wherein the trapezoidal container is provided with a cavity; one end of the trapezoidal container is provided with an opening; the cross section area of one end of the trapezoidal container, which is provided with the opening, is larger than that of one end of the trapezoidal container, which is not provided with the opening; the trapezoidal container is made of a thermal expansion material; the trapezoidal sliding block is arranged at one end of the trapezoidal container, which is provided with an opening; the trapezoidal sliding block and the trapezoidal container form a closed cavity; the metal nano particles are charged in the same kind, and are uniformly distributed in the closed cavity. The temperature can be detected by only irradiating the closed cavity with light and detecting the change of the resonance peak of the transmitted light, so that the temperature detection device is convenient to use; in addition, the volume change of the closed cavity can greatly influence the position of a resonance peak of the transmitted light, namely the temperature change can greatly influence the resonance peak of the transmitted light, so that the invention has extremely high detection sensitivity.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
Fig. 1 is a structural diagram of a temperature detection apparatus based on metal nanoparticles according to an embodiment of the present invention.
Description of the symbols:
1-trapezoidal container, 2-trapezoidal sliding block, 3-metal nano particles and 4-closed cavity.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a temperature detection device based on metal nanoparticles, which can detect temperature more conveniently and sensitively.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1, the metal nanoparticle-based temperature detection apparatus includes a trapezoidal container 1, a trapezoidal slider 2, and a plurality of metal nanoparticles 3. An opening is arranged at one end of the trapezoidal container 1. The cross-sectional area of the end of the trapezoidal container 1 provided with the opening is larger than that of the end of the trapezoidal container 1 not provided with the opening. The trapezoidal container 1 is made of a thermally expandable material. The trapezoidal sliding block 2 is arranged at one end of the trapezoidal container 1, which is provided with an opening. The trapezoidal sliding block 2 and the trapezoidal container 1 form a closed cavity 4. The plurality of metal nanoparticles 3 have the same charge, and the plurality of metal nanoparticles 3 are uniformly distributed in the closed cavity 4.
When the device uses, utilize light transmission to seal cavity 4, when external environment temperature changes, because the material of trapezoidal container 1 is the thermal expansion material, trapezoidal container 1 can take place the inflation along with external temperature's change volume, trapezoidal slider 2 can the landing downwards this moment, compression seals cavity 4, make interval between the metal nanoparticle 3 change (because a plurality of metal nanoparticle 3 have the same kind of electric charge, so have a determining deviation between the metal nanoparticle 3 when initial), and then make the transmission light behind the transmission seal cavity 4 change, specifically the formant of transmission light changes, can detect the temperature through the formant that detects the transmission light.
Optionally, the metal nanoparticles 3 are spherical in shape. The diameter of the metal nanoparticles 3 is 100nm to 200nm. The diameter of 100nm-200nm can make the distribution of the metal nano particles 3 more uniform, and the transmission of the metal nano particles 3 to light is more stable.
Optionally, the temperature detection device based on metal nanoparticles further comprises a light generator, and light emitted by the light generator is transmitted through the closed cavity 4.
In this embodiment, the inner wall of the trapezoidal container 1 and the trapezoidal slider 2 are also charged. The inner wall of the trapezoidal container 1, the trapezoidal sliding block 2 and the plurality of metal nano particles 3 are charged with the same kind of electric charge. The inner wall of the trapezoidal container 1 and the trapezoidal sliding block 2 are provided with electric charges which are the same as those of the metal nano particles 3, so that the metal nano particles 3 can not be adhered to the inner wall of the trapezoidal container 1 or the trapezoidal sliding block 2, and the detection accuracy can be improved.
The temperature can be detected by only irradiating the closed cavity with light and detecting the change of the resonance peak of the transmitted light, so that the temperature detection device is convenient to use; in addition, the volume change of the closed cavity can greatly influence the position of a resonance peak of the transmitted light, namely the temperature change can greatly influence the resonance peak of the transmitted light, so the invention has extremely high detection sensitivity.
In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to assist in understanding the core concepts of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (5)
1. The temperature detection device based on the metal nanoparticles is characterized by comprising a trapezoidal container, a trapezoidal sliding block and a plurality of metal nanoparticles;
one end of the trapezoidal container is provided with an opening; the cross section area of one end of the trapezoidal container, which is provided with the opening, is larger than that of one end of the trapezoidal container, which is not provided with the opening; the trapezoidal container is made of a thermal expansion material;
the trapezoidal sliding block is arranged at one end of the trapezoidal container, which is provided with an opening; the trapezoidal sliding block and the trapezoidal container form a closed cavity;
the metal nano particles are charged in the same kind, and are uniformly distributed in the closed cavity.
2. The metal nanoparticle-based temperature detection device of claim 1, further comprising a light generator that emits light that is transmitted through the enclosed cavity.
3. The metal nanoparticle-based temperature detection device of claim 1, wherein the inner wall of the trapezoidal container and the trapezoidal slider are also charged with electric charges; the inner wall of the trapezoidal container, the trapezoidal sliding block and the metal nano particles are charged with the same kind of charges.
4. The metal nanoparticle-based temperature detection device according to claim 1, wherein the metal nanoparticle has a spherical shape.
5. The metal nanoparticle-based temperature detection device of claim 4, wherein the spherical shape has a diameter of 100nm to 200nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111009847.2A CN115727969A (en) | 2021-08-31 | 2021-08-31 | Temperature detection device based on metal nanoparticles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111009847.2A CN115727969A (en) | 2021-08-31 | 2021-08-31 | Temperature detection device based on metal nanoparticles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115727969A true CN115727969A (en) | 2023-03-03 |
Family
ID=85291328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111009847.2A Pending CN115727969A (en) | 2021-08-31 | 2021-08-31 | Temperature detection device based on metal nanoparticles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115727969A (en) |
-
2021
- 2021-08-31 CN CN202111009847.2A patent/CN115727969A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9244100B2 (en) | Current clamp with jaw closure detection | |
| CN105387796B (en) | The detection circuit and its detection method of a kind of inductive displacement transducer | |
| CN112197932B (en) | Surface temperature correction method and measurement method for airplane anti-icing and deicing test model | |
| CN103499022B (en) | A kind of sensor distinguishing pipeline surfaces externally and internally corrosion default | |
| US20130022075A1 (en) | Temperature sensor having means for in-situ calibration | |
| EP1968026A4 (en) | Linear fire-detector alarming system based on data fusion and the method | |
| WO2016046569A1 (en) | Acoustic thermometry | |
| CN101769935B (en) | One-dimensional nanometer material based hot-wire flow velocity transducer and testing system | |
| CN215767428U (en) | Temperature detection device based on metal nanoparticles | |
| CN106644205A (en) | Pressure sensor based on MEMS (Micro Electro Mechanical System) online microwave power sensor structure | |
| CN115727969A (en) | Temperature detection device based on metal nanoparticles | |
| Löfdahl et al. | Characteristics of a hot-wire microsensor for time-dependent wall shear stress measurements | |
| CN109709386B (en) | Three-channel microwave power sensor | |
| CN203133107U (en) | Piezoelectric acceleration sensor integrated with temperature detection function | |
| Knobloch et al. | Novel thin temperature and expansion sensors for li-ion battery monitoring | |
| Ramilli et al. | Sensors for next-generation smart batteries in automotive: A review | |
| CN114485978B (en) | Non-contact temperature measurement method and device based on material conductivity-temperature characteristic | |
| CN104748664B (en) | A kind of Rock And Soil internal displacement system for measuring quantity | |
| CN207379978U (en) | A kind of conductivity meter based on impulse eddy current | |
| CN113960376B (en) | Material metalized phase change characterization structure and method under cylindrical implosion compression | |
| CN103293361A (en) | Temperature-compensable current sensor based on double magnetic circuits and current detection method of current sensor | |
| CN112684388B (en) | Method for measuring medium-high frequency alternating magnetic field intensity based on eddy current effect | |
| CN113820034B (en) | Online temperature measurement method in microwave field | |
| Maurya et al. | A smart flow transmitter using ultrasonic sensors | |
| CN111157156B (en) | Super-magnetostrictive and tunnel magnetoresistive composite rotating part torque testing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |