Detection device for ripeness degree of watermelons and pesticide residue

Abstract

The invention discloses a detection device for the ripeness degree of watermelons and pesticide residue. The detection device comprises a conveyor belt, a base plate, a spring, an elastic baffle plate, a connecting plate, a motor, universal wheels, an operation platform, a first detection box, a far infrared light source, a metal ball, an electromagnet, a temperature sensor, a sound level meter, an optical fiber detector, a computer, a single chip microcomputer, a voice signal acquisition card, a spectrograph, a second detection box, a detection needle, an enzyme electrode sensor, a first hydraulic retractable rod, a hydraulic cylinder, a pneumatic sliding rail, a sliding block, a second hydraulic retractable rod, a third hydraulic retractable rod, a fixed claw and an air cylinder. According to the detection device disclosed by the invention, indexes including the sugar content, acidity, solid-state dissolved matters and the like of the watermelons are detected by adopting a far infrared manner, so that the ripeness degree of the watermelons is determined; in a detection process, the elastic baffle plate is used for fixing and is suitable for fixing the watermelons with different sizes; meanwhile, the metal ball is used for carrying out dual detection in a knocking manner and the accuracy and reliability of the ripeness degree of the detected watermelons are ensured.

Description

technical field [0001] The invention relates to a detection device, in particular to a detection device for watermelon maturity and pesticide residues, and belongs to the technical field of food detection equipment applications. Background technique [0002] The fruit of watermelon is large, nearly spherical or oval, fleshy, juicy, with smooth skin, various colors and patterns; watermelon is a summer fruit with sweet flesh, which can cool down and relieve heat; the seeds contain oil and can be used as recreational food; peel medicine It has the effects of clearing away heat, diuresis and lowering blood pressure. [0003] The freshness of watermelons is limited. Overripe watermelons should not be preserved, and overripe watermelons cannot be eaten. Therefore, watermelons need to be classified and sold according to their maturity. Therefore, watermelons need to be tested. It is representative, and the detection method adopts a single method, so the detection results are inacc...

AI Technical Summary

Problems solved by technology

[0003] The freshness of watermelon is limited, overripe watermelon should not be preserved, and overripe watermelon cannot be eaten, so watermelon needs to be graded and sold according to maturity, so watermelon needs to be tested. It is representative, and the detection method adopts a single method, so the detection results are inaccurate. In addition, the amount of pesticide residues inside the watermelon determines the safety of watermelon consumption. The current detection method ignores the sampling detection of pesticide residues, and the safety performance is low.

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