Food foreign matter detection apparatus

A technology for foreign body detection and food, applied in the field of food processing, can solve problems such as poor versatility, easy to miss detection, etc., and achieve the effects of not easy to miss detection, strong versatility, simple and practical structure

Inactive Publication Date: 2016-03-16
NANJING AGRICULTURAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method can only be used for specific food-foreign matter combinations, and has poor versatility
The second category is the technology to detect mixed foreign matter in loose products based on shape or color analysis, which is mainly an optical detection technology, which is prone to missed detection
The third category is the detection technology for detecting foreign matter mixed in food through the difference in electromagnetic interaction between foreign matter and food. This field has been developing and improving, and it is also prone to missed detection.

Method used

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  • Food foreign matter detection apparatus

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Embodiment Construction

[0011] Such as figure 1 As shown, the microwave emitting head and the infrared thermal imager described in the present invention are all fixed at appropriate positions above the conveyor belt. The microwave generator is connected with the microwave emission head, the microwave shield is covered above the microwave emission head, and the infrared thermal imager is connected with the infrared thermal image processing system. When the device is working, the microwave generated by the microwave generator heats the food on the conveyor belt and the foreign matter mixed in it through the microwave emitting head, and then uses the infrared thermal imager to detect the infrared thermal image, and uses the built-in function to capture ordinary visible light at the same time image, and then the infrared thermal image processing system compares and recognizes the two images.

[0012] The principles involved in the present invention are as follows:

[0013] Foreign matter in food mainly...

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Abstract

The present invention relates to the technical field of food processing, especially to an apparatus for effectively detecting foreign matters in food. The food foreign matter detection apparatus specifically comprises a microwave generator, a microwave emission head, a microwave protection shield, an infrared thermal imager, and an infrared thermal image processing system. The food foreign matter detection apparatus has characteristics of simple and practical structure, missed detection resistance, and strong versatility.

Description

technical field [0001] The invention relates to the technical field of food processing, in particular to a device capable of effectively detecting foreign matter in food. Background technique [0002] In the process of food harvesting and processing, it is often encountered that foreign objects are inadvertently mixed into food, such as metal, glass, plastic, hair, wood chips, sand, etc. Consumers eat food containing foreign matter, which will cause physical or mental harm. Therefore, food production enterprises do everything possible to detect and remove foreign matter in food. [0003] According to the differences in detection objects and detection techniques, the detection methods of food foreign matter are mainly divided into three categories. The first category is a technology that detects mixed foreign matter in loose products by the difference in size or weight between the foreign matter and the food product. Such as sieving in flour industry and flotation technolo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/02
Inventor 黄桂林
Owner NANJING AGRICULTURAL UNIVERSITY
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