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Liquid food quality fingerprint-based identifier

A fingerprint and liquid food technology, which is applied in the field of liquid food detection instruments, can solve the problems of long operation period, complicated instrument operation, and high price, and achieve the effects of convenient collection and analysis, simple operation, and simple circuit production

Inactive Publication Date: 2013-03-13
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the food quality testing is to detect a single representative substance, but the equipment used is complex and expensive, especially the operation cycle is long, and rapid detection cannot be achieved.
Moreover, the substances contained in the same food type are relatively similar, and the quality differences between products of the same type, different origins, different manufacturers, and different batches are smaller, which increases the difficulty of food quality testing and makes it impossible for a single quality parameter to be accurate. Effective expression of the quality of various foods

Method used

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  • Liquid food quality fingerprint-based identifier
  • Liquid food quality fingerprint-based identifier
  • Liquid food quality fingerprint-based identifier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] Such as figure 1 As shown, the liquid food quality fingerprint recognition instrument of the present invention includes a signal generation and acquisition controller U1, a constant potential unit U2, a fingerprint collector U3, a current-to-voltage circuit U4, a computer U5, an analog switch and a working electrode conversion device; The signal generation and collection controller U1 is connected to the reference electrode and the auxiliary electrode in the fingerprint collection device U3 through the constant potential unit U2, and the working electrode in the fingerprint collection device U3 is connected to the working electrode conversion device, an analog switch and a current-to-voltage circuit U4 is connected to computer 5 .

[0019] Among them, the signal generation and acquisition controller U1 can use the USB-6009 data acquisition card of NI Company, and the computer U5 can use a notebook computer. The first analog output terminal AO1 of the data acquisition c...

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Abstract

The invention discloses a liquid food quality fingerprint-based identifier. A computer is connected with a signal generation and acquisition controller; a first analog output end of the signal generation and acquisition controller is connected with a constant potential unit; the analog input end of the signal generation and acquisition controller is connected with a current-voltage conversion circuit; the INT end of an analog switch is connected with a second analog output end of the signal generation and acquisition controller; the EA end of the analog switch is connected with the digital output end of the signal generation and acquisition controller; the current-voltage conversion circuit is connected with the analog switch connected with a working electrode conversion device which is connected with a working electrode of a fingerprint collector; and a reference electrode of the fingerprint collector and an auxiliary electrode are connected with the constant potential unit respectively. The identifier has the advantages that: the circuit is simple in manufacturing and stable; the operation is simple and quick; and total liquid food information can be acquired effectively.

Description

technical field [0001] The invention relates to a detection instrument for liquid food, in particular to a fingerprint recognition instrument for liquid food. Background technique [0002] Liquid food (milk, white wine, fruit juice, rice wine, red wine) plays a very important role in people's daily life, and people pay more and more attention to food safety in recent years, so food quality testing plays an important role in food safety assurance play a very important role. At present, most of the food quality testing is to detect a single representative substance, but the equipment used is complex and expensive, especially the operation cycle is long, and rapid detection cannot be achieved. Moreover, the substances contained in the same food type are relatively close, and the quality differences between products of the same type, different origins, different manufacturers, and different batches are smaller, which increases the difficulty of food quality testing and makes it...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/02
Inventor 王俊韦真博赵煜沈睿谦
Owner ZHEJIANG UNIV
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