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A kind of photonic crystal temperature sensor and preparation method thereof

A technology of temperature sensors and photonic crystals, applied in thermometers, thermometers with physical/chemical changes, instruments, etc., can solve the problems of no reaction and achieve the effect of slowing down the heating rate and reducing the heating rate

Active Publication Date: 2015-08-19
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the existing sensor can only be used as a signal output system and has no reaction to temperature induction, and provides a photonic crystal temperature sensor and its preparation method

Method used

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  • A kind of photonic crystal temperature sensor and preparation method thereof
  • A kind of photonic crystal temperature sensor and preparation method thereof

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specific Embodiment approach 1

[0015] Specific embodiment one: a kind of photonic crystal temperature sensor of this embodiment is the block made of hydrogel and monodisperse colloidal microsphere emulsion, or is that hydrogel and monodisperse colloidal microsphere emulsion are coated on The complex obtained on the substrate, wherein the hydrogel is made of monomers, crosslinking agents, initiators and accelerators, and the molar ratio of the accelerators to monomers is 1:3 ~ 7, The molar ratio of accelerator and initiator is 90~110:1, the molar ratio of accelerator and crosslinking agent is 9~11:1, and the molar volume ratio of accelerator and deionized water is 1mol:9L~12L; The molar volume ratio of the monomer and the monodisperse colloidal microsphere emulsion is 1mol:1L~4L, and the concentration of the monodisperse colloidal microsphere emulsion is 20~40g / L.

[0016] This embodiment prepares a temperature sensor in the form of a smart hydrogel PNIPA / photonic crystal composite. This sensor can not only ...

specific Embodiment approach 2

[0018] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the molar ratio of the accelerator and the monomer is 1:4~6, the molar ratio of the accelerator and the initiator is 95~105:1, The molar ratio of accelerator to crosslinking agent is 9.5~10.5:1, and the molar volume ratio of accelerator to deionized water is 1mol:10L~11L. Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0019] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the molar ratio of the accelerator to the monomer is 1:5, the molar ratio of the accelerator to the initiator is 100:1, the accelerator The molar ratio of the accelerator to the crosslinking agent is 10:1, and the molar volume ratio of the accelerator to deionized water is 1mol:10L. Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

A temperature sensor of photonic crystal and a preparation method of the temperature sensor relate to a simple sensor and a preparation method of the sensor. The temperature sensor aims at solving the problems that a sensor existing in the prior art can only transmit signals without the ability of regulating or reacting upon output signal. The temperature sensor is composed of a composition of hydrogel and monodispersed microballoon. The method comprises a step of growing gelatin on the photonic crystal through a in-situ polymerization to gain the photonic crystal or a intelligent hydrogel compound system and product is made as a lump or coated on the a basement so that the temperature sensor is obtained. The temperature sensor has the advantages of not only displaying effectively and quickly temperature situation of detected area but also responding to a temperature field. Heating rate can be slowed effectively and the temperature of the detected area can even be lowered by adjusting and controlling incident intensity.

Description

technical field [0001] The invention relates to a photonic crystal temperature sensor and a preparation method thereof. Background technique [0002] Temperature sensors are usually used to measure the temperature information of a given area, and can convert the information sensed by the detection into a specific signal output. But in conventional temperature sensor applications, the main process is sensing temperature-signal output, and the sensor itself has no response or reaction to the temperature situation in a given area. [0003] The hydrogel PNIPA is a temperature-sensitive polymer, which changes at the lowest critical solution temperature (LCST) of 33 °C, and the color of the gel changes from transparent to white, which can be used as a good temperature indicating substance. In agricultural production, 33°C is an important temperature value. For example, in the process of cultivating soil elements, the hatching of egg masses should be carried out in a room with a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01K11/12G01K11/16
Inventor 李垚赵九蓬辛伍红
Owner HARBIN INST OF TECH
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