Method and apparatus for non-destructive testing of fruit internal properties by laser
A non-destructive testing and fruit technology, applied in the measurement of scattering characteristics, etc., can solve the problems of inability to detect fruit damage, inconvenient operation, etc., and achieve the effects of easy promotion and use, reduced classification costs, and easy to master.
Inactive Publication Date: 2006-05-03
CHINA AGRI UNIV
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[0004] There is also near-infrared online detection technology that has not been popularized and applied. The principle is to place a near-infrared camera in a camera room for online fruit detection. The fruit enters the camera room through a conveying device. The information of the fruit collected by the near-infrared camera is processed. Determine sugar acidity and ripeness inside the fruit
[0005] The main problems of the existing fruit grading mechanism are: the near infrared cannot detect the internal damage of the fruit; the image of the fruit must be processed by image processing technology, which is not easy to operate
At present, there are no articles or similar patent publications on the method and device of laser non-destructive inspection of fruit internal characteristics
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[0015] The present invention is a method and a device for laser nondestructive detection of the internal characteristics of fruits. exist figure 1 In the schematic diagram of the device structure shown, the laser transmitter 1 is placed on the metal ring 2, the metal ring 2 is placed on the fruit 5 in the dark room, the string 4 is set on the fruit 5, and the pin 3 used for marking is placed on the thin wire. the surface of fruit 5 near rope 4;
[0016] The method for the non-destructive detection of the internal characteristics of the fruit is as follows:
[0017] 1) Prepare a dark room kept at room temperature ±22°C, and ensure that there is no visible light in the room;
[0018] 2) The laser transmitter 1 emits a laser with a wavelength of 670nm and a power of 10mw to the fruit 5. The laser propagates inside the fruit 5 and produces a bright area on the fruit surface. Use a marked pin 3 to make a mark at the end point of the area. Mark, use the string 4 to take out the c...
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Abstract
The invention discloses a method and apparatus for using laser to do nondestructive inspection to the fruit inner character in the field of nondestructive inspection technology. It arranges a laser sender into an indoor darkroom and a metal ring on the surface of the fruit. When the laser sender works, it touches the sending surface of the laser beam and the metal ring, uses safety-pin to label the transmitting range boundary of the fruit inner part, and uses the leptctene to measure the ring of the area; it then compares the transmitting area of the nondestructive fruit to the fruit inner part and statistics the data and compares the result by drawing.
Description
technical field [0001] The invention belongs to the technical field of optical non-destructive testing. In particular, it relates to a method and a device for non-destructive detection of the internal characteristics of fruits based on the propagation properties of the laser in the fruit. Background technique [0002] To provide consumers with high-quality fruit is a multidisciplinary approach that requires multidisciplinary knowledge such as agronomy and horticulture. [0003] The existing non-destructive testing technology mainly uses near-infrared to detect the internal components of fruits, such as the detection of fruit sugar acidity and ripeness. Use the different light intensity of fruit in different wavelength bands to judge the quality of fruit. [0004] There is also a near-infrared online detection technology that has not been popularized. The principle is that the near-infrared camera is placed in the camera room for online detection of fruits, and the fruit en...
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IPC IPC(8): G01N21/49
Inventor 籍保平庆兆珅玛纽依拉·祖德孟超英
Owner CHINA AGRI UNIV