Fruit sugar degree detector based on optical sound technique

Abstract

The invention discloses a fruit sugar degree detector based on an optical sound technique. The detector comprises a sample stage on which fruits are placed, an integrated sensor for acquiring optical and acoustic signals of the fruits, a signal amplification circuit, a signal filter circuit, a signal processor, a laser generator and a display screen. The fruit sugar degree detector disclosed by the invention has the following beneficial effects: 1, the detector is non-destructive; 2, the measurement is accurate; and 3, the measuring range is large and the practicability is strong.

Description

technical field [0001] The invention relates to the technical field of non-destructive detection of fruit sugar content, in particular to a fruit sugar content detector based on photoacoustic technology. Background technique [0002] With the improvement of living standards and the needs of fruit industrialization, people pay more and more attention to the internal quality of fruits, such as sugar content, acidity, taste, defects and other indicators. At present, the detection of the internal quality of fruits is usually based on destructive sampling detection, extracting juice from fruits, and measuring the sugar content by optical or chemical methods. The measurement results of this method are relatively accurate, but the operation is cumbersome, the analysis time is long, and the detection cost is high. Only a small amount of fruit can be sampled and analyzed. [0003] At present, the devices that use non-destructive testing methods to detect the internal quality of frui...

AI Technical Summary

Problems solved by technology

Generally speaking, the current non-destructive fruit sugar meter is mainly based on near-infrared reflection or transmission spectroscopy. Weak, the accuracy of detection is not high, which affects the practicability of the product

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