China Education Equipment Purchasing Network News: According to a recent report in the Nikkan Kogyo Shimbun, a research team led by Professor Shizuoka University Inuizuka Hiroka recently developed a non-contact hardness testing method for bananas, apples and other crops, which effectively protects fruits and other crops Appearance.
The principle of the device is to blow compressed air to the crops, and determine the hardness by measuring the depth of the compressed air recessed part. When compressed air is blown onto the surface of the fruit, a dent of several tens of nanometers will be generated on the surface, and then irradiated with a laser to measure the time and change of the laser through the dent, calculated according to the depth of the dent on the fruit surface and the time change of the dent The hardness of the fruit.
Traditionally, acupuncture hardness testers are used to check the hardness of fruits, which is not conducive to protecting the appearance of the fruit. The new device is easy to carry. It is about 27 cm long and 12 cm wide. It has a battery and a compressed air bag. It is equipped with unlimited communication devices inside. At the same time, data transmission is implemented, and the operator can confirm the analysis results on the computer.
At present, experts are experimenting with muskmelon and conducting research to judge the maturity of fruits by hardness.
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