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Method and system for measuring concentration of transparent liquid based on reflecting optical fiber system

A technology of transparent liquid, optical fiber system, applied in the measurement of scattering characteristics, etc., can solve the problems of inapplicability, complex structure, bulky instrument, etc., to achieve the effect of easy portability

Pending Publication Date: 2018-01-12
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The instruments required for these analysis methods are bulky and complex in structure, and cannot be applied to working conditions that require real-time measurement

Method used

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  • Method and system for measuring concentration of transparent liquid based on reflecting optical fiber system
  • Method and system for measuring concentration of transparent liquid based on reflecting optical fiber system
  • Method and system for measuring concentration of transparent liquid based on reflecting optical fiber system

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Embodiment Construction

[0029] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with specific embodiments.

[0030] A method for measuring the concentration of transparent liquids based on a reflective optical fiber system, including:

[0031] S1. A coupling lens is installed between the LED light source and the input fiber. The coupling lens system includes a single lens and a telescope group. The light beam is refracted by the single lens and then enters the eyepiece unit of the telescope group in parallel, and then exits through the objective lens unit of the telescope group. , after the beam is emitted, it is focused and collimated by the self-focusing fiber and then enters the input fiber of the reflective fiber system. The output power of the LED light source is 0.3w;

[0032] S2. The light source is emitted through the outer optical fiber of the optic...

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Abstract

The invention discloses a method and a system for measuring the concentration of transparent liquid based on a reflecting optical fiber system, and relates to the field of liquid concentration measurement. The measurement method disclosed by the invention comprises the following steps: acquiring light signals; collecting transparent liquid transmitting light signals of the reflecting optical fibersystem; detecting the light signals; amplifying and converting light current signals; processing and displaying data, fitting data obtained through the measurement of a plurality of different transparent liquid with known concentrations into a formula, reading voltage signals of transmitting light from a display module, then substituting into the formula obtained through fitting, and calculatingthe percentage composition of a solute in an unknown transparent liquid. The system is applicable for concentration measurement of the transparent liquid, and has the advantages that the method is simple in operation, quick in measurement and high in sensitivity and the system is small in volume and easy to carry.

Description

technical field [0001] The invention relates to the field of liquid concentration measurement, in particular to a transparent liquid concentration measurement method and system based on a reflective optical fiber system. Background technique [0002] Liquid concentration is an important physical quantity that reflects the characteristics of liquid. The measurement and monitoring of solution concentration is widely used in papermaking, chemical industry, sugar, food, pharmaceutical, environmental monitoring and other fields. It is an important technology to ensure product quality and improve product quality. means. Therefore, the measurement of liquid concentration has always been a hot issue for researchers. With the rapid development of industrialized society, the emergence of environmental pollution problems makes people pay close attention to the sustainable development of society, and pay more and more attention to environmental monitoring and protection issues. Whethe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/55
Inventor 张文杰赵志敏俞晓磊庄笑
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS