Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

a temperature sensor

A technology for temperature sensor and temperature detection, which is applied in thermometers, instruments, and thermometers based on the expansion/contraction of materials, etc., can solve the problem of insufficient precision of temperature sensors, and achieve increased catchability, improved measurement accuracy, and high detection sensitivity Effect

Active Publication Date: 2022-03-25
SHANDONG FIRST MEDICAL UNIV & SHANDONG ACADEMY OF MEDICAL SCI
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a temperature sensor, which solves the problem that the accuracy of the temperature sensor is not high enough

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • a temperature sensor
  • a temperature sensor
  • a temperature sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] see figure 1 , figure 2 , Figure 4 , a temperature sensor, comprising an optical fiber 1, a laser 2 is arranged at one end of the optical fiber 1, a detector 3 is arranged at an end of the optical fiber 1 away from the laser 2, a thermal expansion part 4 is arranged at a middle position of the optical fiber 1, and a thermal expansion part 4 and the detector 3 are arranged A filter 5 is provided, a nanoparticle 6 is arranged in the thermal expansion part 4, a thermal contraction part 7 is provided on the outer wall of the thermal expansion part 4, a fixed part 8 is provided at both ends of the thermal expansion part 4, the thermal expansion part 4 is a transparent thermal expansion material, and the nanoparticle 6 It is NaYF4 doped with rare earth.

[0026] Specifically, when working, the laser 2 emits laser light, transmits and irradiates the thermal expansion part 4 through the optical fiber 1, and the nanocomposite material in the middle of the thermal expansion p...

Embodiment 2

[0031] On the basis of specific embodiment 1, please refer to figure 2 , image 3 Specifically, the heat shrinkable part 7 is connected to the outer wall of the heat expandable part 4 by sticking, and the material of the heat shrinkable part 7 is cross-linked polyethylene material. A circle of thermal contraction part 7 is arranged outside the thermal expansion part 4. When detecting the temperature, the thermal expansion part 4 is thermally expanded, and the thermal contraction part 7 is thermally contracted. The thermal contraction part 7 produces an inward pressure on the thermal expansion part 4, so that the thermal expansion part 4 Expanding to both sides, therefore, the thermal expansion part 4 will become longer, the concentration of nanoparticles 6 inside it will change more obviously, and the resulting light intensity will also change more obviously, which can effectively improve the detection accuracy and sensitivity.

Embodiment 3

[0033] On the basis of specific embodiment 1, special, please refer to Figure 4 , the shape of the fixing part 8 is wedge-shaped, and there are two fixing parts 8, which are distributed symmetrically at the top and bottom of the thermal expansion part 4 respectively. Wedge-shaped fixing parts 8 are provided at both ends of the thermal expansion part 4. When the thermal expansion part 4 expands in volume due to the influence of temperature, the upper and lower fixing parts 8 will generate forces in different directions on the thermal expansion part 4, so that the thermal expansion part 4 is twisted and the inside The change of the concentration of nanoparticles 6 is more obvious, so the change of the light intensity produced is more obvious, which can effectively improve the detection accuracy and sensitivity.

[0034] The relevant content of the temperature sensor is as described above, and will not be repeated here.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of sensing devices, and specifically relates to a temperature sensor, including an optical fiber, a laser is arranged at one end of the optical fiber, a detector is arranged at the end of the optical fiber far away from the laser, and a thermal expansion part is arranged in the middle of the optical fiber. A filter is provided between the thermal expansion part and the detector, nanoparticles are provided in the thermal expansion part, and a thermal contraction part is provided on the outer wall of the thermal expansion part. The present invention uses the thermal expansion part to capture temperature changes. When the temperature changes, the thermal expansion part expands and deforms, and the concentration of nanoparticles inside it also changes, thereby converting the temperature change into a change in the concentration of nanoparticles in the thermal expansion part. The light intensity has a great influence, so the temperature can be detected by measuring the light intensity, and the detection sensitivity is high, and the thermal expansion part produces an up-conversion luminescence phenomenon under the action of light, which increases the captureability of light and improves the measurement accuracy.

Description

technical field [0001] The invention relates to the technical field of sensing devices, in particular to a temperature sensor. Background technique [0002] 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 there are many varieties. According to the measurement method, it can be divided into two categories: contact type and non-contact type. According to the characteristics of sensor materials and electronic components, it can be divided into two types: thermal resistance and thermocouple. [0003] Temperature is a physical quantity that characterizes the degree of hot or cold of an object, and it is a sign of the intensity of molecular thermal motion inside the object. The smoother the molecular motion, the lower the temperature. In the fields of daily life, industry and commerce, aerospace and transportation, temperature is very importa...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01K5/48
CPCG01K5/48
Inventor 张素英
Owner SHANDONG FIRST MEDICAL UNIV & SHANDONG ACADEMY OF MEDICAL SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com