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Application of doped zinc sulfide in mechanoluminescent sensor, mechanoluminescent sensor and its preparation method and their application

A zinc sulfide and sensor technology, which is applied in the measurement of the change of optical properties of materials when they are stressed, the testing of machine/structural components, instruments, etc., can solve problems such as complex optical equipment, and achieve a wide range of applications, The effect of excellent performance and great application value

Active Publication Date: 2019-01-29
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the above-mentioned technology requires a laser or ultraviolet lamp as the excitation light source, and a filter system is required to filter the excitation light when measuring fluorescence, so complex optical equipment is required.

Method used

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  • Application of doped zinc sulfide in mechanoluminescent sensor, mechanoluminescent sensor and its preparation method and their application
  • Application of doped zinc sulfide in mechanoluminescent sensor, mechanoluminescent sensor and its preparation method and their application
  • Application of doped zinc sulfide in mechanoluminescent sensor, mechanoluminescent sensor and its preparation method and their application

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preparation example Construction

[0031] In a third aspect, the present invention also provides a method for preparing a visual sensor based on mechanoluminescence as described above, the method comprising: coating the suspension of zinc sulfide particles doped with a transition metal element as described above on the above-mentioned on the basis described above.

[0032] The inventors of the present invention have found that although the above-mentioned transition metal element-doped zinc sulfide particle suspension is prepared into a suspension in a solvent, and then coated on the substrate, a sensor meeting the requirements of the present invention can be prepared, However, when the suspension also contains polymer substances, the sensitivity and accuracy of the final sensor will be further improved.

[0033] According to the present invention, the content of the transition metal element-doped zinc sulfide particles can also vary within a wide range, preferably, based on 100 parts by weight of the suspension,...

Embodiment 1

[0043] This example is used to illustrate the preparation method of the mechanoluminescence-based visual sensor of the present invention

[0044] (1) Preparation of zinc sulfide particles doped with transition metal elements

[0045] Mix manganese and zinc sulfide powders at a molar ratio of 1:100, place them in a tube furnace (commercially available from Xi'an Tianhong Instrument Co., Ltd. with the brand name GSK14-2), and heat to 1050°C after vacuuming. 30 minutes after the start of heating, the temperature reached 1050° C., continued heating at this temperature for 3 hours, then stopped heating and cooled naturally to obtain manganese-doped zinc sulfide (ZnS: Mn) particles. The scanning electron microscope (Hitachi JSM-7500F ) pictures and physical pictures see figure 1 as shown in a. Wherein, the particle diameter of described particle is 20nm; By changing the feeding powder size of different zinc sulfide and manganese, also can obtain 200nm, the particle diameter of 2 μ...

Embodiment 2

[0049] This example is used to illustrate the preparation method of the mechanoluminescence-based visual sensor of the present invention

[0050] (1) Preparation of zinc sulfide particles doped with transition metal elements

[0051] Mix copper and zinc sulfide powder according to the molar ratio of 1:120, place in a tube furnace, and heat to 1000°C after vacuuming. 20 minutes after the start of heating, the temperature reached 1000° C., continued heating at this temperature for 4 hours, then stopped heating, and cooled naturally to obtain copper-doped zinc sulfide (ZnS:Cu) particles, wherein the particle size of the particles was 15 nm .

[0052] (2) Fabrication of a visual sensor based on mechanoluminescence

[0053] Stir and disperse the ZnS:Cu particles and starch obtained in step (1) in methanol to obtain a suspension containing 1.5% by weight of ZnS:Cu particles, 3% by weight of starch and methanol as the balance. The suspension is magnetically stirred (the magnetic s...

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Abstract

The invention relates to the field of mechanoluminescent sensors, discloses application of zinc sulfide in a mechanoluminescent sensor, the mechanoluminescent sensor, a preparation method of the mechanoluminescent sensor and application of zinc sulfide and the mechanoluminescent sensor, and particularly discloses application of transition metal element doped zinc sulfide particles in a visible sensor based on mechanoluminescence, the visible sensor based on mechanoluminescence and a preparation method of the visible sensor. The invention further discloses application of the transition metal element doped zinc sulfide particles, the visible sensor based on mechanoluminescence and the visible sensor prepared through the method in a wind tunnel experiment. The pressure sensor capable of being used for the wind tunnel experiment is designed through the mechanoluminescent performance of transition metal element doped zinc sulfide, the pressure sensor has ultra-sensitive and high-precision real-time optical responses to small dynamic force, the detecting limit of pressure intensity is 25 Pa, the detecting limit of energy is 28 mj, high-precision responses are achieved, the response time is 10 ms, and real-time responses are achieved.

Description

technical field [0001] The present invention relates to the field of mechanoluminescence sensors, in particular to the application of transition metal element-doped zinc sulfide particles in a mechanoluminescence-based visual sensor, a mechanoluminescence-based visual sensor and a preparation method thereof, and Their application in wind tunnel experiments. Background technique [0002] The wind tunnel is the most widely used tool in aerodynamic research and testing. Its emergence and development are closely related to the development of aerospace science. Wind tunnels are widely used to study the basic laws of aerodynamics, to verify and develop relevant theories, and directly serve the development of various aircraft, through wind tunnel experiments to determine the aerodynamic layout of the aircraft and evaluate its aerodynamic performance. In addition to being used in aircraft research and development, wind tunnels can also be used in automobiles, motorcycles, and buil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L1/24G01M9/02
CPCG01L1/24G01M9/02
Inventor 钱鑫蔡哲仁苏萌李风煜宋延林
Owner INST OF CHEM CHINESE ACAD OF SCI
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