Handheld near-infrared probe for nondestructive internal quality testing of fruit and detection method

An internal quality and non-destructive testing technology, applied in the direction of measuring devices, scattering characteristics measurement, lighting device components, etc., can solve the problems of inability to obtain fruit component content information, instrument instability, etc., to improve environmental adaptability and low cost , High stability effect

Inactive Publication Date: 2010-08-11
EAST CHINA JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when this invention is applied to fruit detection, there are still deficiencies: a small light spot is irradiated on the surface of the fruit, and the complete content information of the fruit components cannot be obtained, which directly leads to the instability of the instrument.

Method used

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  • Handheld near-infrared probe for nondestructive internal quality testing of fruit and detection method
  • Handheld near-infrared probe for nondestructive internal quality testing of fruit and detection method
  • Handheld near-infrared probe for nondestructive internal quality testing of fruit and detection method

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Experimental program
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Effect test

Embodiment 1

[0042] Embodiment 1. A hand-held near-infrared probe for non-destructive testing of the internal quality of fruits, wherein: four LED light sources 8 adopt a wave band of 810-940nm, and the LED light sources 8 surround the optical fiber 12 at the detection end of the probe, according to the up-down, left-right cross structure arrangement; the LED light source 8 and the focusing mirror 9 are located in the housing; the optical fiber 12 is located on the central axis of the housing.

Embodiment 2

[0043] Embodiment 2, a hand-held near-infrared probe used for non-destructive testing of the internal quality of fruits, wherein: four LED light sources 8 adopt a wave band of 810-940nm, and the LED light sources 8 surround the optical fiber 12 at the detection end of the probe, according to the up-down, left-right cross structure Arrangement; the four LED light sources 8 and the centerlines of the focusing mirror 9 are all placed at an angle of 7-10 degrees; the LED light sources 8 and the focusing mirror 9 are all located in the housing; the optical fiber 12 is located on the central axis of the housing.

Embodiment 3

[0044] Embodiment 3, a hand-held near-infrared probe used for non-destructive testing of the internal quality of fruits, wherein: the four LED light sources 8 adopt wave bands of 810nm, 840nm, 880nm, and 940nm, and the four LED light sources 8 and the centerline of the focusing mirror 9 form an 8-degree angle placed at the included angle. All the other are with embodiment 2.

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Abstract

The invention relates to a handheld near-infrared probe for nondestructive internal quality testing of fruit and a detection method. The optical fiber probe consists of four LED light sources with different waverlengths, a detection optical fiber, an automatic sampling control system, a light source stabilizing circuit, a digital temperature and humidity sensor, a circular lug boss, a darkening ring, a soft rubber ring, a switch, a circuit box and a shell. The probe has the characteristics of high stability, simple structure, low cost and spectra collecting controllability, and can be widely used for on-line monitoring and on-site sampling of fruit. A voice system and a wireless transmission system can be used for realizing the humanization and easy operation of equipment and effectively expand application space.

Description

Technical field: [0001] The invention relates to a non-destructive detection method for the internal quality of fruits, in particular to a hand-held near-infrared probe and a detection method for non-destructive detection of the internal quality of fruits. Background technique: [0002] Fruit is an important food resource for human life, and its quality is of great significance to improving people's living standards. With the improvement of people's quality of life, consumers not only pay attention to the external quality such as size, color and appearance shape, but also pay attention to the internal quality such as taste, sugar acidity and vitamin content when purchasing fruits. [0003] With the development of spectral analysis technology and its wide application in agricultural production, as a new type of analysis and testing technology, the optical fiber photometric analysis instrument with optical fiber sensor as the probe can shield external stray light, reduce elect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/01G01N21/49F21V19/00F21V17/00F21V13/00F21Y101/02
Inventor 刘燕德高荣杰潘圆媛孙旭东刘伟欧阳爱国
Owner EAST CHINA JIAOTONG UNIVERSITY
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