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Reflection type fast detector for acidity of fruit confection

A kind of fruit sugar and reflective technology, applied in the direction of instruments, measuring devices, scientific instruments, etc., can solve the problems of lack of portability, simple operation, high cost, etc., and achieve the effect of rapid quantitative display

Inactive Publication Date: 2007-09-05
JIANGXI AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is based on laboratory spectroscopic instruments, which is costly and does not have portability and ease of operation

Method used

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  • Reflection type fast detector for acidity of fruit confection
  • Reflection type fast detector for acidity of fruit confection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A reflective quick detection instrument for the acidity of fruit sugar, which is composed of a light intensity controller 7, a light source 1, a CCTV reflective condenser lens 2, a grating monochromator 3, an optical signal collector 4, an optical signal data processing system 5, and a display 6; Wherein: the light intensity controller 7 is connected with the light source 1, and the light source 1 is symmetrically located on both sides of the light path reflection line between the fruit and the CCTV reflective condenser lens 2; the CCTV reflective condenser lens 2 facing the fruit and the optical signal data processing system 5 A grating monochromator 3 and an optical signal collector 4 are sequentially distributed on the optical path between them; the optical signal collector 4 is connected to the optical signal data processing system 5; the optical signal data processing system 5 is connected to the display 6 circuit.

Embodiment 2

[0019] A reflective fast acidity detector for fruit sugar, wherein: between the optical signal collector 4 and the optical signal data processing system 5; the circuit connection between the optical signal data processing system 5 and the display is as follows: the output terminal of the address latch DZSC A7 passes through two NOR gates, and is connected to the input ports of the two NOR gates with WR and RD of 89S51, and then connected to CE and R / C of AD574 at the output ports of the two NOR gates; 89S51 The P3.2 port is directly connected to the 28-pin STS of the AD574; the 15-pin of the AD574 is the digital ground DGND, and the 9-pin of the AD574 is the analog ground AGND; the 7-pin of the AD574 is connected to the positive +15V terminal of the VCC power supply, and the 11-pin VEE is connected to the negative power supply - 15V terminal; the optical signal collected by the optical signal collector (4) is input through the two analog input terminals of AD574, 0-10V at pin 1...

Embodiment 3

[0022] A reflective fast acidity detector for fruit sugar, wherein: between the optical signal collector 4 and the optical signal data processing system 5; the circuit connection between the optical signal data processing system 5 and the display is as follows: the output terminal of the address latch DZSC A7 passes through two NOR gates, and is connected to the input ports of the two NOR gates with WR and RD of 89S51, and then connected to CE and R / C of AD574 at the output ports of the two NOR gates; 89S51 The P3.2 port is directly connected to the 28-pin STS of the AD574 for MCU access to determine whether the A / D conversion is over; the 15-pin of the AD574 is the digital ground DGND, and the 9-pin of the AD574 is the analog ground AGND; the 7-pin of the AD574 is connected to the VCC power supply Positive +15V terminal, 11-pin VEE is connected to the negative -15V terminal of the power supply.

[0023] The optical signal collected by the optical signal collector (4) is input...

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Abstract

The related fast reflective acidity detector for konfyt comprises: a light intensity controller connected to a light source, a CCTV reflective condensing lens, a grating monochromator and a light signal collector on light path between the CCTV lens and processing system, a light signal processing system, and a display. Wherein, the detection principle relies in the absorption feature of fruit to near IR light will increase as the acidity increasing.

Description

technical field [0001] The invention relates to a fruit sugar acidity detector, in particular to a reflection type rapid fruit sugar acidity detector. Background technique [0002] At present, there are many detection methods for the acidity of fruit sugar. The most common anthrone colorimetric method is to grind and mash the fruit samples and extract the fruit juice for measurement. This is obviously a destructive detection method. This method not only produces This method is cumbersome, time-consuming and labor-intensive, and the detection cost is high and the efficiency is low. In order to obtain a fast and simple method for quickly detecting the acidity of fruit sugar, scholars at home and abroad have conducted some related research: [0003] High-performance liquid chromatography: The fruit juice samples are analyzed by high-performance liquid chromatography. It takes a lot of time to do complex sample pretreatment before analysis. This method is complicated to operate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/35G01N21/3563G01N21/359
Inventor 刘燕德欧阳爱国毛学东马文烈肖怀国罗吉
Owner JIANGXI AGRICULTURAL UNIVERSITY