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Quick detecting method for hardness of phyllostachys pracecox shoots and device

A detection method and technology of bamboo shoots, applied in measuring devices, material analysis through optical means, instruments, etc., can solve the problems of unable to meet the needs of rapid detection of large sample groups, slow detection speed, loss, etc., to achieve fast and convenient detection, Reduced testing costs and high measurement accuracy

Inactive Publication Date: 2014-01-01
ZHEJIANG FORESTRY UNIVERSITY
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional bamboo shoot hardness testing method usually uses a hardness tester for perforation testing. This method is a destructive testing method, and the testing speed is slow, which cannot meet the rapid testing needs of large sample groups in the bamboo shoot cutting process.

Method used

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  • Quick detecting method for hardness of phyllostachys pracecox shoots and device
  • Quick detecting method for hardness of phyllostachys pracecox shoots and device
  • Quick detecting method for hardness of phyllostachys pracecox shoots and device

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Embodiment

[0041] Acquisition of characteristic wavelengths:

[0042] 1) Select bamboo shoots with a length of 30 cm and a root diameter of more than 5 cm as the sample raw material, cut them longitudinally, and use a blade puncher with an inner diameter of 1.5 cm to punch holes in the internodes of the bamboo shoots to obtain samples with a diameter of 1.5 cm and a thickness of 113 samples of 1cm;

[0043] 2) An Antraris II Fourier transform near-infrared spectrometer was used to collect the near-infrared diffuse reflectance spectra of the above samples. Acquisition conditions: room temperature: 20±2°C; scanning range: 10000~4000 cm -1 ; Number of scans: 64; Resolution: 8 cm -1 ;When scanning, the optical fiber probe is in direct contact with the circular surface of the bamboo shoot, and the spectral data is collected and converted by TQ Analyst 9.1 (Thermoelectric Nicolis, USA) software;

[0044] 3) Use a texture analyzer (Beijing Weixunchao Instrument Technology Co., Ltd.) to m...

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Abstract

The invention discloses a quick detecting method for the hardness of phyllostachys pracecox shoots, and a device. The quick detecting method provided by the invention comprises the following steps: (1), collecting reflection indexes of the phyllostachys pracecox shoots corresponding to characteristic wavelengths; (2), converting the reflection indexes under different wavelengths into absorbance values; (3), leading all the absorbance values into a multiple linear regression equation for calculating the hardness of the phyllostachys pracecox shoots. The invention further discloses the device for implementing the quick detecting method. The device comprises an objective table, a sample fixing and profiling rubber base, a hemispherical light spectrum collecting device, a light source system, a computer and a singlechip module, wherein an elastic supporting leg is arranged between the objective table and the hemispherical light spectrum collecting box in a welding manner, a central opening is integrally formed in the center of the bottom of the hemispherical light spectrum collecting box, and a handle is arranged on the hemispherical light spectrum collecting box in a matched manner. In the invention, the hardness of the phyllostachys pracecox shoots is mainly detected through the characteristic wavelengths quickly and accurately, so that the detecting time is greatly shortened, and a basis for cutting the phyllostachys pracecox shoots automatically is provided.

Description

technical field [0001] The invention belongs to the field of quality detection of bamboo shoots, and in particular relates to a rapid detection method and device for the hardness of thunder bamboo shoots. Background technique [0002] Bamboo shoots contain amino acids necessary for the human body, as well as various trace elements and cellulose. It is a low-sugar, low-fat, high-protein, high-fiber green health food. Hardness is an important indicator for evaluating the quality of bamboo shoots. Cutting bamboo shoots with different hardness can make the best use of them and create better economic value. The traditional bamboo shoot hardness testing method usually uses a hardness tester for perforation testing. This method is a destructive testing method, and the testing speed is slow, which cannot meet the rapid testing needs of large sample groups in the bamboo shoot cutting process. Therefore, it is of great significance to study the method of non-destructive, rapid and ac...

Claims

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Application Information

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IPC IPC(8): G01N21/3563G01N21/359
Inventor 余学军周竹郑剑王允祥
Owner ZHEJIANG FORESTRY UNIVERSITY
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