Abstract
One of the main evaluations in pork carcass is the lean meat ratio. A method based on Fiber optic sensor and NIR (Near Infrared) to acquire the ratio was put forward. This method acquired the reflected light intensity of the meat inside the pork carcass, by using double optical paths to reduce the errors caused by the instability of light. The fiber was lead into a probe which can be stabbed into the pork carcass, and then the reflected light was detected by a circuit named LIA (lock in amplifiers) to recognize the weak reflected light intensity effectively. The results suggested that the reflected light of the fat part of the pork was much higher than that of lean part, and through medium filter, the conditions of fluctuation was improved. The system was proved to be quick and accuracy for the detection of lean meat ration in pork carcass.
Highlights
Pork plays a very important role in the meat consumption in China
To create a fair marketplace, many technologies had been applied into distinguishing fat meat and lean meat of pork such as ultrasonic technology, computer vision, opto-electronic, etc
Analyzing the different reflected values, the fat depth is got, and through collecting more than 3200 points of the pork carcass, a 3D ultrasonic image is established quickly. It can get the estimation of marble score of pork carcass and the lean meat ratio automatically
Summary
Pork plays a very important role in the meat consumption in China. And with the development of society, people’s requirements on the quality of pork meat becomes higher and higher. Analyzing the different reflected values, the fat depth is got, and through collecting more than 3200 points of the pork carcass, a 3D ultrasonic image is established quickly. It can get the estimation of marble score of pork carcass and the lean meat ratio automatically. Opto-electronic mainly uses the different reflected light values of fat and lean to detect the boundary and calculate the length of fat and lean meat. This technology is widely used in many companies like SFK, Hennessy and Destron Company. This article improves the opto- electronic by applying fiber optic and probe into acquiring the intensity of the reflected light of the inside meat surface, distinguishing the fat and lean meat and acquiring the length of fat and lean meat
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