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- W2372946424 abstract "In order to find out the hot spots in stored grain more timely,a temperature monitoring method for stored grain based on acoustic tomography was proposed. The functional relationship between the sound travel-time in grain and grain temperature was derived. A sound velocity conversion factor was defined to convert the measured sound velocity in grain into that in the free space with the same temperature and gas,and an acoustic temperature measurement model for stored grain was established. The factors influencing the velocity conversion factor and the corresponding control measures were analyzed. The temperature-monitoring experimental system based on acoustic tomography of virtual instrument was developed. Through filling the experimental granary with soybean,the distribution rule of measured sound velocity for each sound path of the system was studied. In addition,the modification and convertion methods were proposed. Three kinds of grain temperature distribution generated by electric heaters were reconstructed in the testes. The results indicate that the reconstructed images can clearly reflect the location and temperature values of hot spots in soybean. Therefore,the temperature monitoring method for stored grain based on acoustic tomography is expected to be used for monitoring the hot spots in stored grain." @default.
- W2372946424 created "2016-06-24" @default.
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- W2372946424 date "2013-01-01" @default.
- W2372946424 modified "2023-09-22" @default.
- W2372946424 title "Temperature monitoring method for stored grain based on acoustic tomography" @default.
- W2372946424 hasPublicationYear "2013" @default.
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