Wool fineness automatic measuring method

Abstract

The invention discloses a wool fineness automatic measuring method, which comprises the following steps that instruments required for automatically measuring the wool fineness are prepared, and the instruments comprise an LED (light emitting diode) light source, a testing sample XY work table, an optical magnification system and a digital camera; light rays are irradiated to testing samples by the LED light source; through the optical magnification system, sample images are captured by a CCD (charge coupled device) camera; the sample images are sent to a computer processing system for measurement and calculation. The wool fineness automatic measuring method provided by the invention has the advantages that the manual intervention is not needed, manpower resources are reduced, and errors caused by subjective factors are avoided; simple and efficient processing links are adopted, the consumed time of the whole wool fineness automatic measuring process is shortened to be within 30ms, the original wool state is maintained to the maximum degree, and the damage to the geometric dimension of wool is avoided, so the basis is provided for guaranteeing measurement precision; during the diameter calculation, the condition that the wool edge is basically in a straight line state or an approximate straight line state is used as the basis for approximately solving the diameter by adopting an area method, so the measurement precision cannot be greatly influenced.

Description

technical field [0001] The invention belongs to the technical field of wool fineness measurement, in particular to an automatic measurement method for wool fineness. Background technique [0002] Fiber fineness is one of the most important quality indicators of wool. All the properties and characteristics of wool and the style performance of textile products are almost related to the fineness of the fiber, so the price of wool in trade basically depends on the fineness of the fiber. Because the fineness has a great influence on the price of wool, the detection of wool fineness is an important work to evaluate the value of wool. [0003] At present, the fineness inspection methods of the International Wool Textile Organization (IWTO) include: wool fiber fineness OFDA test method, core sampling raw wool average fineness test method, mohair fiber fineness test method, laser fineness tester The corresponding testing instruments include OFDA, air flow meter, fiber fineness test...

AI Technical Summary

Problems solved by technology

[0009] The disadvantages of the microprojector method are: cumbersome operation; because working in a dark room, the personnel should be fatigued; the calculation of the result is complicated; the accuracy is slightly low

[0015] Disadvantages of the laser fineness analyzer method: the laser fineness analyzer method has strict operating requirements. Since the mixed liquid contains n-butanol, it must be kept away from open flames; the test conditions are harsh and the requirements for temperature and humidity are also high; the cost of the instrument is high

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