Ultrasonic wave milk components analysis instrument

An ultrasonic and analyzer technology, applied in the direction of using sonic/ultrasonic/infrasonic waves to analyze fluids, etc., can solve the problems of high cost and complex system requirements, and achieve the effect of overcoming the influence of ultrasonic attenuation.

Inactive Publication Date: 2003-08-06
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This detection method uses optical principles, which require

Method used

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  • Ultrasonic wave milk components analysis instrument
  • Ultrasonic wave milk components analysis instrument
  • Ultrasonic wave milk components analysis instrument

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Embodiment Construction

[0029] Such as figure 1 , Figure 6 , Figure 7, Figure 8 As shown, the present invention comprises: AT89C52 single-chip microcomputer 1, the man-machine interface that is made up of liquid crystal display 2, button 3, RS232 standard interface 3, EEPROM storage unit 5, liquid pump 6, by ultrasonic probe 7, temperature control circuit 8, oscillation circuit 9. A detection system composed of a power amplifier circuit 10 and a threshold value detection circuit 11.

[0030] 1) The liquid crystal display 2 and the button 3 are connected to the single-chip microcomputer 1 through the input / output interface and the standard interface 4 through the serial interface;

[0031] 2) storage unit 5 is the storage of programs and fixed parameters;

[0032] 3) The central processing unit CPU controls the oscillating circuit 9 to generate equal-amplitude pulse waves, which are amplified by the power amplifier circuit 10 and then connected to the transmitting end of the ultrasonic probe 7, a...

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PUM

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Abstract

The invention discloses an ultrasonic analyzer of the milk components. It includes: AT89C52 singlechip, the interface composed of LCD, press key and RS232, EEPROM location, liquid pump and the detecting system composed of the ultrasonic probe, temperature-control circuit, oscillating circuit, power amplifying circuit and threshold-value detecting circuit. It has advantages of wider temperature range (15-40 deg.C) for testing the sample and the emitting signal with a certain frequency and voltage and a one-off detection and analysis of the fat, protein, density, freezing point and so on in themilk.

Description

technical field [0001] The invention relates to ultrasonic detection technology, and is an ultrasonic milk component analyzer. Background technique [0002] Milk composition analysis is a necessary link in the purchase of raw milk based on quality and price evaluation and product quality monitoring in the production process. Traditional milk composition analysis uses chemical analysis technology, which requires chemical analysis of milk fat, solids, density, and protein content. Among them, the analysis of fat content is based on the difference in density between fat and other components, and is determined after separation by a milk fat separator; the solid content is measured by weighing after drying; the density is measured by a densitometer; the protein is determined by Kjeldahl method Determination. The whole analysis process often takes 1-2 days, which is time-consuming and labor-intensive. At the same time, various chemical analysis instruments ...

Claims

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Application Information

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IPC IPC(8): G01N29/02
Inventor 刘东红叶兴乾郭明
Owner ZHEJIANG UNIV
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