Portable ultrasonic detector and detection method for liquid food quality

A liquid food, ultrasonic technology, applied in the direction of material analysis, instruments, measuring devices, etc. using sound waves/ultrasonic waves/infrasonic waves, to achieve accurate measurement and avoid the effect of bottle wall thickness

Inactive Publication Date: 2014-01-01
PEKING UNIV SHENZHEN GRADUATE SCHOOL
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0003] At present, the phenomenon of selling bottled and filled liquid foods such as blended and fake wine, waste oil, and poor-quali

Method used

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  • Portable ultrasonic detector and detection method for liquid food quality
  • Portable ultrasonic detector and detection method for liquid food quality
  • Portable ultrasonic detector and detection method for liquid food quality

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Embodiment Construction

[0021] The features and advantages of the present application will be described with reference to the accompanying drawings.

[0022] see figure 1 , a portable liquid food quality ultrasonic detector, comprising an ultrasonic sensor device 101, a control unit 104 composed of a timing module 105, a storage module 106, a signal processing module 107, and a USB standard interface 109, buttons 110, LCD liquid crystal The man-machine interface 108 composed of the display screen 111 and the temperature compensation unit 112 .

[0023] see figure 1 , image 3 and Figure 4 , after the system is powered on and reset, the ultrasonic sensor A301, which is an integrated transmitter and receiver, emits ultrasonic waves through button control. At this time, timer 1 and timer 2 in the timing module are started to start timing. The ultrasonic wave is incident on the bottle wall 1 and passes through the liquid. Then, a part of the ultrasonic wave is incident on the bottle wall 2 and trans...

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Abstract

The invention discloses a portable ultrasonic detector and a detection method for liquid food quality. The detector comprises an ultrasonic sensor device, a the control unit mainly comprising digital signal processing, timing and memory modules, a temperature compensation unit and a man-machine interface comprising a USB standard interface, a keyboard and a liquid crystal display (LCD). Through use of the portable ultrasonic detector and the detection method for the liquid food quality, consumers can perform, without opening sealing caps, nondestructive detection of bottled and canned liquid food to be purchased such as wine, edible oil, soy sauce, vinegar, milk, beverage and the like whenever and wherever, influences of bottle wall thickness and signal processing module time delay on detection results can be avoided, and relevant characteristic parameters of the detected liquid food can be accurately obtained. The relevant characteristic parameter values are compared with a cloud database established through a lot of experiments for detecting good food, so that if the detected liquid food is true or false and good or bad can be identified.

Description

【Technical field】 [0001] The invention relates to the field of food safety detection, in particular to a portable liquid food quality ultrasonic detector and method. 【Background technique】 [0002] At present, ultrasonic waves are widely used in ultrasonic distance measurement and non-destructive testing of materials, but are rarely used in food safety testing. With the development of society and the improvement of people's living standards, food safety has attracted more and more attention. However, the current food safety testing is mainly carried out by food safety-related departments, and it is mainly detected by chemical methods. The testing equipment is huge and expensive. , and testing food needs to be carried out in a laboratory. However, when each citizen buys food, he cannot distinguish the authenticity of the food he buys, whether it is good or bad. The present invention is a portable liquid food quality ultrasonic detector designed for this situation and propose...

Claims

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Application Information

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IPC IPC(8): G01N29/024
Inventor 郭朝阳王新安雍珊珊张芳妮史小龙刘彬曹颖
Owner PEKING UNIV SHENZHEN GRADUATE SCHOOL
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