Fowl egg crack rapid on-line nondestructive detection device and method based on acoustic characteristic

Abstract

The invention discloses a device used for quick online nondestructive detection on cracks of poultry eggs on the basis of acoustic characteristic and a method thereof; the poultry egg is arranged on a supporting idler wheel; a stepping motor is connected with the supporting idler wheel and drives the supporting idler wheel; a microphone which is arranged beside the poultry egg is sequentially connected with a computer by a signal amplifier, a filter and an A / D converter; when the poultry egg rolls on a chain, different parts of the poultry egg are mechanically knocked at multi-point by a knocking rod; sound signals collected by the microphone are amplified by the signal amplifier, filtrated by the filter and converted by the A / D converter and subsequently input to the computer, thus comprehensively judging the cracking situation of the poultry eggs. The device and the method can adapt to poultry eggs with different types and different sizes, realize the classification and automatic detection of the poultry eggs during the production processing and circulation process, and can be popularized and applied to the nondestructive detection on the hardness and the maturity of agricultural products such as fruits, vegetables, and the like.

Description

technical field [0001] The invention relates to a detection of poultry egg cracks, in particular to an on-line rapid non-destructive detection device and method for poultry egg cracks based on acoustic characteristics. Background technique [0002] Poultry eggs are a nutritious food suitable for all ages, but at present, both the export volume of fresh eggs and the deep processing of poultry eggs are relatively small. The main reason is that the standardized processing facilities and methods of poultry eggs are relatively backward. During the production, operation and processing of poultry eggs, poultry eggs are easily damaged. In the detection of broken poultry eggs, eggshell cracks are the most difficult to identify, but they have a great impact on egg quality. As time goes on, the cracks of damaged eggs will change from small to large, and microorganisms can easily invade the eggs from the cracks, resulting in reduced freshness and even spoilage. Therefore, the rapid an...

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Problems solved by technology

However, these are all basic research in the laboratory, and there is still a long way to go before realizing on-line detection in industrial production.

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