Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

On-line measurement method for water content of mechanically-parched Longjing tea leaves

A detection method, tea technology, applied in measuring devices, analysis materials, color/spectral characteristics measurement, etc., can solve the problems that cannot meet the requirements of real-time detection of tea moisture and the measurement process is complicated

Inactive Publication Date: 2013-04-17
ZHEJIANG UNIV OF TECH
View PDF10 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The measurement process of this method is complicated and generally takes a few minutes, so it cannot meet the requirements of real-time detection of tea moisture.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • On-line measurement method for water content of mechanically-parched Longjing tea leaves
  • On-line measurement method for water content of mechanically-parched Longjing tea leaves
  • On-line measurement method for water content of mechanically-parched Longjing tea leaves

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0042] In order to achieve a simple, fast and non-destructive online detection of the moisture content of machine-fried Longjing tea leaves, the implementation process of the present invention is as follows:

[0043] 1) Acquisition of full-band tea spectral samples

[0044] Using hyperspectral instrument to obtain machine-fried Longjing tea in different picking periods (spring tea and autumn tea), different water content (65%, 50%, 45%, 40%, 35%, 30%, 20% and 15%), different leaf The spectral dat...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an on-line measurement method for water content of mechanically-parched Longjing tea leaves, which is implemented based on spectral characteristic parameters. The method comprises the following steps: firstly determining a sampling plan by the uniform design method, obtaining the all-band spectrum of the mechanically-parched Longjing tea leaves by use of a hyperspectral device, and performing spectral pretreatment and analysis; and determining sensitive spectral bands and calculating spectral characteristic parameters according to the relevance analysis on water content of mechanically-parched Longjing tea leaves, and establishing an inverse model based on the small-sample non-statistical theory and ant colony algorithm to predict the water content of the mechanically-parched Longjing tea leaves. The technical scheme provided by the invention can achieve the purpose of on-line real-time detection of the water content of mechanically-parched Longjing tea leaves, and can be used in a full-automatic tea leaf processing equipment system to increase the production efficiency.

Description

technical field [0001] The invention relates to a detection technology based on infrared spectrum, in particular to an online detection technology capable of realizing the water content of tea leaves, and in particular to an online detection method for the water content of machine-fried Longjing tea leaves. Background technique [0002] On-line detection of tea moisture is the most important link in the production process of machine-fried tea. Tea is a dry agricultural product. According to the theory of food science, the absolutely dry food is easily oxidized by oxygen in the air because various ingredients are directly exposed to the air. When water molecules combine with food ingredients by hydrogen bonds and form a monomolecular layer, it seems to cover the surface of the food with a protective film, which protects the food and slows down the oxidation process. Many studies have shown that when the water content in tea is about 3%, the tea ingredients and water molecul...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01N21/25G01N21/35G01N21/31G01N21/3554G01N21/3563G01N21/359
Inventor 乔欣张宪赵章风王扬渝钟江
Owner ZHEJIANG UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com