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Method and system for measuring wool fiber fineness measurement

A wool fiber and measurement method technology, which is applied to measurement devices, material analysis by optical means, instruments, etc., can solve problems such as affecting the accuracy and stability of the motion of the workbench, increasing the number of signal transformations, and increasing the difficulty of system maintenance. , to achieve the effect of flexible and diverse output methods, many measurement parameters, and fast measurement speed

Inactive Publication Date: 2002-07-17
TSINGHUA UNIV
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Problems solved by technology

The instrument has the following disadvantages: the use of a special light source increases the cost of the system and increases the difficulty of system maintenance; the drive system is placed on the side of the workbench, causing uneven force on the workbench, which will affect the movement accuracy and stability of the workbench; Analog CCD increases the number of signal transformations and increases image distortion; due to imports from abroad, the price is expensive

Method used

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  • Method and system for measuring wool fiber fineness measurement
  • Method and system for measuring wool fiber fineness measurement
  • Method and system for measuring wool fiber fineness measurement

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Embodiment Construction

[0027] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in detail:

[0028] The invention mainly includes a precision workbench, an optical microscopic imaging system, an image acquisition and processing system, an image processing and measurement algorithm, and measurement accessories. Its measurement principle is as figure 1 As shown: the illumination system 1 provides uniform illumination to the fiber slice 3 on the workbench 2, and the microscopic segment on the fiber slice 3 is imaged on the target surface of the digital camera 5 through the micro-magnification system 4, and the digital camera 5 converts the enlarged fiber image into Digital image, the computer 8 reads the digital image and performs real-time processing to obtain the fiber profile, calculate the fineness of a single fiber, and calculate the average fineness, fineness distribution, coefficient of variation and other data of all measured fibers to realiz...

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Abstract

The present invention relates to a method for measuring wool fibre fineness and its system. Digital camera head (CCD) is adopted to convert the amplified fibre image into digital image, and transfer it into computer to mare real time processing to obtain fibre outline and calculate single fibre fineness, then it counts up the data of average fineness and fineness distribution of all the measured fibres. In said ivnention, general light source is used and the proper alogirhtm and software are designed with can measure animal fibre with the measurement range of 4-300 micrometers, and its measurement speed is 140 fibre / sec.

Description

technical field [0001] The invention belongs to the technical field of precision measuring instruments, in particular to a method and equipment for measuring the fineness of textile fibers including wool, cashmere, mohair and other circular cross-sections, which are widely used in the quality management of textile import and export and production industries. Background technique [0002] The average fineness and fineness distribution of plush fiber is one of the most important parameters to evaluate the quality of plush, which has important use value in the textile industry. Among the commonly used methods at present, the micro-projector measurement method is an absolute measurement method, which is simple and intuitive; but the work efficiency of single measurement is very low, and the human error of manual operation is large; although the air flow method is fast, it can only get the average diameter instead of The fineness distribution that reflects the quality cannot be o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/10G01N21/84G01N35/00
Inventor 李庆祥黄成伟白立芬蔡弋
Owner TSINGHUA UNIV
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