A high-sensitivity optical refractive index sensor and system

A refractive index sensor and high-sensitivity technology, which is applied in the field of high-sensitivity optical refractive index sensors and systems, can solve problems such as insufficient resolution and limited application range, and achieve the effects of reducing PSD resolution requirements, high resolution, and cost reduction

Active Publication Date: 2022-06-21
SHANDONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Although the prior art introduces the refractive index sensor based on the V-groove, for the detection of the refractive index in various fields, 4×10 -7 The resolution of RIU (refractive index unit) is still insufficient, which limits its application range

Method used

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  • A high-sensitivity optical refractive index sensor and system
  • A high-sensitivity optical refractive index sensor and system
  • A high-sensitivity optical refractive index sensor and system

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Embodiment Construction

[0029] The present disclosure will be further described below with reference to the accompanying drawings and embodiments.

[0030] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present disclosure. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.

[0031] It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present disclosure. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates that There are features, steps, operations, devices, component...

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Abstract

The disclosure provides a high-sensitivity optical refractive index sensor and system, including a tank body, the tank body has an accommodation cavity, one side of the tank body is used as the incident end, and the opposite side is used as the output end, and the inner wall of the tank body at the incident end is There are a number of sequentially connected bending surfaces on the top. There is a groove on the inner wall of the tank at the exit end, and there is a groove on the outer wall of the tank at the exit end. The grooves are all a refraction interface, and the two refraction The interfaces together constitute an aspheric concave lens; the present disclosure amplifies the change of the optical path transmission direction caused by the change of the refractive index of the liquid to be measured by changing the shape of the liquid / glass and glass / air interfaces at the exit end, thereby increasing the resolution of the sensor.

Description

technical field [0001] The present disclosure belongs to the technical field of optical refractive index sensors, and in particular relates to a high-sensitivity optical refractive index sensor and a system. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] Since the refractive index of a liquid to light can reflect the basic characteristics of the liquid, such as the density, temperature, concentration, salinity, and external pressure of the liquid and other related parameters will affect the refractive index of the material, so the refractive index sensor is a widely used It is an important sensor in many fields such as biochemistry and physics. In recent years, the demand for the accuracy of the refractive index of liquids in complex environments has gradually increased in production, life, national defense, military and other fields. T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/41
CPCG01N21/41
Inventor 吴锜巍蔚白小雪付妤婕刘海玲高莉媛
Owner SHANDONG UNIV
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