Development Principle and Application Advantage of Portable Fruit Detector
The quality of fruits is mostly based on sweetness and sweetness, so how to determine the sweetness and sweetness of fruits is worth considering. With the continuous development of science and technology, portable fruit detectors have been developed and applied to this field, providing effective data support for the evaluation of fruit quality. The light intensity controller of the portable fruit detector is used to control the luminous intensity of the light source, and the diffuse reflectance near-infrared spectrum of the fruit in the wavelength range of 400 nm-1100 nm is collected to calculate and display the size of the fruit sugar according to the size of the fruit absorbance, thereby realizing Easy and fast quantification of sugar and acid content in fruits.
The light emitted by the light source directly illuminates the surface of the fruit. The light reflected by the internal tissue and reflected by the CCTV is condensed by the grating monochromator after being reflected by the condenser lens. The light signal collector can be a multi-channel CCD silicon detector. For example, through the R232 communication interface, the information is transmitted to the data acquisition system of the optical signal data processing system. After being amplified, filtered, and A/D converted, it is sent to the microprocessor. The microprocessor control and the 3-bit LED common static display circuit display Output fruit sugar acidity size. A predictive model program has been loaded into the microprocessor of the portable fruit detector, and the raw fruit spectrum of the collected fruit can be quickly and quantitatively displayed and outputted. The microprocessor is connected with the 3-digit LED common static display circuit, and the measurement result can be represented by the 3-bit LED common-yang static display circuit to indicate the level of sugar acidity.
Portable fruit detectors are widely used in large-scale fruit and vegetable markets in major Tier 1 cities. According to the physical, mechanical, optical, electrical and biological characteristics of fruit, the portable fruit detector can determine the physical and chemical indicators of fruits without destroying the nutrients of the fruit itself. It does not require chemical reagents and cumbersome analysis processes. The method is simple and fast. The test data has high accuracy and is conducive to achieving on-line grading control of internal quality of fruits. Therefore, it has a wide range of application prospects. Non-destructive testing methods for fruit quality have been studied at home and abroad, and some have been applied commercially.
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