阅读说明：本技术 一种无损检测样品品质的方法 (Method for nondestructive testing of sample quality ) 是由 李建威 于 2020-07-31 设计创作，主要内容包括：本发明公开了一种无损检测样品品质的方法,包括：(1)发射一束光照强度固定的光,并垂直照射待测样品；(2)接收贯穿待测样品后的光束,并根据光强转换成对应的电压值；(3)旋转待测样品,重复步骤(1)、(2)；(4)设定残次品判定值,并与同一光照强度不同角度照射下的电压差值进行比较,根据比较结果确定是否为残次品,是,结束检测；否,则执行步骤(5)；(5)设定污品判定值,并与同一光照强度照射下的电压值进行比较,根据比较结果确定是否为污品,是,结束检测；否,则确定为好品。本发明判断产品品质的方式,流程简单、实用、可靠、不损伤产品、鉴别精度高,为人们高效率、大批量产品品质的鉴别需求提供了行之有效的保障。(The invention discloses a method for nondestructively detecting the quality of a sample, which comprises the following steps: (1) emitting a beam of light with fixed illumination intensity, and vertically irradiating a sample to be detected; (2) receiving the light beam penetrating through the sample to be detected, and converting the light beam into a corresponding voltage value according to the light intensity; (3) rotating the sample to be detected, and repeating the steps (1) and (2); (4) setting a defective product judgment value, comparing the defective product judgment value with voltage difference values under the irradiation of the same illumination intensity and different angles, determining whether the defective product is a defective product or not according to a comparison result, and finishing detection if the defective product is a defective product; if not, executing the step (5); (5) setting a dirt judgment value, comparing the dirt judgment value with a voltage value under the irradiation of the same illumination intensity, determining whether the dirt is the dirt according to a comparison result, and if so, ending the detection; otherwise, determining the product as a good product. The method for judging the product quality has the advantages of simple process, practicality, reliability, no damage to products and high identification precision, and provides effective guarantee for the identification requirements of high-efficiency and large-batch product quality of people.)

1. A method for non-destructive testing of the quality of a sample, comprising the steps of:

(1) emitting a beam of light with fixed illumination intensity above a sample to be detected, and vertically irradiating the sample to be detected;

(2) receiving the light beam penetrating through the sample to be detected, and converting the light beam into a corresponding voltage value according to the light intensity;

(3) rotating the sample to be detected at least twice, repeating the steps (1) and (2), and then executing the step (4);

(4) setting a defective product judgment value, comparing the defective product judgment value with voltage difference values under the irradiation of the same illumination intensity and different angles, determining whether the defective product is a defective product or not according to a comparison result, and finishing detection if the defective product is a defective product; if not, executing the step (5);

(5) setting a dirt judgment value, comparing the dirt judgment value with a voltage value under the irradiation of the same illumination intensity, determining whether the dirt is the dirt according to a comparison result, and if so, ending the detection; if not, determining the product as a good product, and ending the detection;

(6) and (5) circulating the steps (1) to (5).

2. The method of claim 1, wherein the light is laser light.

3. The method for nondestructive testing of sample quality as claimed in claim 2, wherein in step (3), the sample to be tested is sequentially rotated by 120 degrees and 240 degrees for irradiation and the corresponding voltage value is recorded.

4. The method for non-destructive testing of sample quality as claimed in claim 3, wherein in step (4), if the voltage difference under the irradiation of different angles with the same illumination intensity is greater than the ragged article judgment value, it is determined as defective, otherwise, it is determined as dirty and good.

5. The method for non-destructive testing of sample quality as claimed in claim 4, wherein in step (5), if the voltage value under the same illumination intensity is greater than the item judgment value, the sample is determined as dirty, otherwise, the sample is determined as good.

Technical Field

The invention relates to the field of sample detection, in particular to a method for nondestructively detecting the quality of a sample.

Background

Agate and crystal are commonly used as raw materials in the manufacturing industry for manufacturing jade products such as jewelry, ornaments and the like. Along with the continuous progress and development of society, the demand of people for raw materials such as agate and crystal is increasing. Generally speaking, the quality, quality and economic value of jade articles are judged by visual identification as the main evaluation means except the value of raw materials.

Although the modern science and technology is developed and various identification instruments are endlessly developed, the instruments are inconvenient to use and cannot solve the problem in the transaction process. The reason is very simple, the existing identification instruments are usually complex in structure and complicated in use process, and sometimes a certain local damage can be caused to the jade article in the identification process, and the complex instrument operation can not be basically carried out on a transaction field, so that the visual identification is always an extremely important method.

However, the experience of the buyer is required to be high by naked eye identification, and the buyer is easy to see by eyes (especially when buying in large quantities), so that the buyer is cheated and regressed.

Therefore, it is necessary to design a detection scheme, which can simplify the use process of the identification instrument, does not damage the product, and can replace the naked eye to perform high-precision identification on the product, thereby meeting the actual needs of people.

Disclosure of Invention

The invention aims to provide a method for nondestructively detecting the quality of a sample, which mainly solves the problems that the existing identification instrument has complicated use process, can damage products and has high requirement for naked eye identification.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a method of non-destructively testing sample quality, comprising the steps of:

(1) emitting a beam of light with fixed illumination intensity above a sample to be detected, and vertically irradiating the sample to be detected;

(2) receiving the light beam penetrating through the sample to be detected, and converting the light beam into a corresponding voltage value according to the light intensity;

(3) rotating the sample to be detected at least twice, repeating the steps (1) and (2), and then executing the step (4);

(4) setting a defective product judgment value, comparing the defective product judgment value with voltage difference values under the irradiation of the same illumination intensity and different angles, determining whether the defective product is a defective product or not according to a comparison result, and finishing detection if the defective product is a defective product; if not, executing the step (5);

(5) setting a dirt judgment value, comparing the dirt judgment value with a voltage value under the irradiation of the same illumination intensity, determining whether the dirt is the dirt according to a comparison result, and if so, ending the detection; if not, determining the product as a good product, and ending the detection;

(6) and (5) circulating the steps (1) to (5).

Preferably, the light is laser light.

Further, in the step (3), the sample to be measured is sequentially rotated by 120 degrees and 240 degrees to be irradiated, and corresponding voltage values are recorded.

Specifically, in the step (4), if the voltage difference values under the irradiation of the same illumination intensity at different angles are greater than the staggered product judgment value, the defective product is determined, otherwise, the dirty product and the good product are determined.

Specifically, in the step (5), if the voltage value under the irradiation of the same illumination intensity is greater than the article determination value, the article is determined to be a dirty article, otherwise, the article is determined to be a good article.

Compared with the prior art, the invention has the following beneficial effects:

(1) the invention takes the detection of the permeability and the purity of the sample as the starting point, skillfully combines the photoelectric effect principle, and quickly, effectively and accurately distinguishes the quality of the product through the processes of vertically irradiating the sample to be detected by light beams, converting the light intensity to voltage, comparing the light intensity with a preset voltage value and judging the light intensity to voltage.

(2) The invention firstly rotates the sample and irradiates to obtain voltage values under different angles, then compares the difference value with a preset voltage value (which can be set according to the type of the sample and the actual identification requirement) to judge defective products, and then continuously compares the obtained voltage value with a preset second voltage value (which can also be set according to the type of the sample and the actual identification requirement) to finally judge good products and dirty products. It can be seen that the invention is very strict in design logic, and has the characteristics of ring-loop deduction, complementary and clear cause and effect. In addition, the rotation angles (120 degrees and 240 degrees) designed by the invention are found to be very representative by the applicant after the practical inspection of a plurality of samples of different varieties, and the defective products in the samples of different varieties can be basically and accurately judged.

(3) The method for judging the product quality has the advantages of simple process, practicality, reliability, no damage to products and high identification precision, provides effective guarantee for the identification requirements of high-efficiency and large-batch product quality of people, and can completely replace the existing identification instrument and naked eye identification method. Therefore, the method is suitable for popularization and application, and is particularly suitable for large-scale popularization and application in the aspect of quality identification of agate and crystal products.

Drawings

FIG. 1 is a schematic flow chart of the present invention.

Fig. 2 is a schematic structural diagram of an apparatus for implementing the present invention.

FIG. 3 is a diagram illustrating voltage differences under different illumination angles with the same illumination intensity according to an embodiment of the present invention.

FIG. 4 is a graph illustrating voltage values under the same illumination intensity according to an embodiment of the present invention.

Wherein, the names corresponding to the reference numbers are:

1-laser pen, 2-agate and 3-light intensity receiving platform.

Detailed Description

The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.