Method for measuring rigidity of poultry eggs

A determination method and technology for poultry eggs, which are applied in the field of physical and mechanical testing of food materials, can solve the problems of lack of relevant literature reports on the measurement of the overall stiffness of poultry eggs, few mechanical properties of poultry eggs, etc., and achieve the effect of avoiding inconvenience and simplifying the measurement process.

Inactive Publication Date: 2010-03-17
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The automation technology level of fresh egg processing in the United States, the Netherlands, Australia, Japan and other countries is very advanced, while the country is still in its infancy. At present, the research on poultry egg quality detection technology mainly focuses on computer image processing, sound characteristics, light characteristics, In terms of electrical characteristics detection technology, the research on the mechanical characteristics of poultry eggs mainly focuses on the mechanical characteristics of the egg shell of poultry eggs, and there are relatively few mechanical properties of poultry eggs as a whole, and there is no relevant literature report on the stiffness measurement of poultry eggs as a whole

Method used

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  • Method for measuring rigidity of poultry eggs

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Take 1 egg sample (75 grams) to be tested, place it upright on the connecting plate of the support platform, and use 502 glue to connect the egg to the connecting plate; place the quality block on the top of the egg, and use 502 glue to connect the mass The block is fixedly connected with the poultry egg; the center of the top of the mass block is hit with a hammer, and the force sensor signal on the force hammer and the acceleration sensor signal on the side of the mass block are converted by a signal converter, and the converted signal is connected to a spectrum analyzer. The spectrum analyzer gives the amplitude-frequency response function curve of the poultry egg, and the natural frequency f of the poultry egg corresponding to the resonance peak o is 569Hz, and finally calculated by the stiffness calculation formula, the egg stiffness is 7.54×10 6 N / m.

Embodiment 2

[0020] Take 1 egg sample (65 grams) to be tested, place it upright on the connecting plate of the support platform, and use 502 glue to connect the egg to the connecting plate; place the quality block on the top of the egg, and use 502 glue to connect the mass The block is fixedly connected with the poultry egg; the center of the top of the mass block is hit with a hammer, and the force sensor information on the hammer and the acceleration sensor signal on the side of the mass block are converted by a signal converter, and the converted signal is connected to a spectrum analyzer. The spectrum analyzer gives the amplitude-frequency response function curve of the poultry egg, and the natural frequency f of the poultry egg corresponding to the resonance peak o is 589Hz, and finally calculated by the stiffness calculation formula, the egg stiffness is 8.08×10 6 N / m.

Embodiment 3

[0022] Take 1 egg sample (55 grams) to be tested, place it upright on the connecting plate of the support platform, and use 502 glue to connect the egg to the connecting plate; place the quality block on the top of the egg, and use 502 glue to connect the mass The block is fixedly connected with the poultry egg; the center of the top of the mass block is hit with a hammer, and the force sensor information on the hammer and the acceleration sensor signal on the side of the mass block are converted by a signal converter, and the converted signal is connected to a spectrum analyzer. The spectrum analyzer gives the amplitude-frequency response function curve of the poultry egg, and the natural frequency f of the poultry egg corresponding to the resonance peak o is 619Hz, and finally calculated by the stiffness calculation formula, the egg stiffness is 8.92×10 6 N / m.

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Abstract

The invention relates to a method for measuring rigidity of poultry eggs and belongs to the field of mechanical detection of physical properties of food products. The method comprises the following steps: vertically putting a poultry egg sample to be measured on a connecting plate of a brace table of a tester, and fixedly connecting the poultry egg and the connecting plate of the brace table by adhesive; putting a mass block at the top of the poultry egg, and fixedly connecting the mass block and the poultry egg by adhesive, so that the poultry egg and the mass block constitute an unidirectionvibrating system; and starting a poultry egg rigidity measurement testing system, knocking at the center of the top of the mass block with a force hammer, transmitting a force sensor signal on the force hammer and an acceleration sensor signal on the side of the mass block to a spectroanalyzer through a signal converter, and finally working out a amplitude-frequency response function curve of thepoultry egg by the spectroanalyzer. The frequency to which the formant corresponds is the natural frequency fo of the poultry egg, and the rigidity of the poultry egg can be calculated by using a formula to calculate the poultry egg rigidity. The method measures the rigidity of the poultry egg by an instrument and provides a method for measuring basic parameters for the development of equipment for detecting, packaging, storing, transporting and processing poultry eggs.

Description

technical field [0001] The invention belongs to the field of mechanical detection of physical properties of food materials, and relates to a method for testing the mechanical texture properties of poultry eggs, in particular to a method for measuring the stiffness of poultry eggs. Background technique [0002] With the improvement of people's living standards and the change of nutritional value and consumption concept, the quality detection and automation and intelligent grading technology of poultry eggs have become a research hotspot. The automation technology level of fresh egg processing in the United States, the Netherlands, Australia, Japan and other countries is very advanced, while the country is still in its infancy. At present, the research on poultry egg quality detection technology mainly focuses on computer image processing, sound characteristics, light characteristics, In terms of electrical characteristics detection technology, the research on the mechanical c...

Claims

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Application Information

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IPC IPC(8): G01N29/12
Inventor 姜松李建康蔡健荣任晓锋崔志平赵杰文
Owner JIANGSU UNIV
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