However, the last mentioned method for wheat and other cereals flow movement is rarely used, as there are difficult to identify particular elements from the entire threshed mass.
#PHOTRON FASTCAM 1024 PCI SOFTWARE#
Some researchers, after capturing crop movement using high-speed cameras, analyzed the recorded images using computer software in order to find the speed of crop flow movement.
![photron fastcam 1024 pci photron fastcam 1024 pci](https://m.media-amazon.com/images/S/aplus-media/vc/d95d06d2-144d-4771-8941-0011ee9b7661.__CR0,37,3069,949_PT0_SX970_V1___.jpg)
The speed of crop flow movement was also measured with the inductive speed sensor, the coil of which was bound by Capron thread to the small bundle of crops fed into the threshing apparatus with the entire crop flow. Some researchers chose to attach rotating rollers, rotors or deformation sensors on the top of the concave, while others decided to insert some sensors into the crop flow and to attach the rest of them to the concave.
![photron fastcam 1024 pci photron fastcam 1024 pci](http://ktv.org.vn/wp-content/uploads/2021/11/KHANH-HOA-CPI-NAM-2020-TANG-3-BAC-SO-VOI-2019-TT-HK-HC-1024x576.jpg)
Different techniques were used for finding the speed of crop flow movement within the threshing crescent between the cylinder and the concave. Movement of the crop flow in the threshing crescent depends on grain characteristics, length and orientation of stems, layer thickness, design and technological parameters of the threshing apparatus. Keywords: threshing cylinder, filler plate, concave, rasp bar. In this case, filler plates showed a substantial effect on behaviour of corn ears: they restrict a rising height of the corn ear, may be subject to additional rotational motion, deflect the corn ear to the clearance between the rasp bar and the concave bar as well as deflect threshed kernels towards concave grates. Following reduction of linear velocity of rasp bars to 14.14 m s -1, it would be reasonable to cover the threshing cylinder with filler plates that can reduce the cross-section area between rasp bars and concave (to 94.26 cm 2 in view of one gap between adjacent rasp bar). A tendency of increase of the corn ear moving over the surface of the concave and decrease of number of impacts received by the corn ear was observable by reduction in the threshing crescent. Moreover, both above-mentioned parameters were larger in the second part of concave length than in the first one. The average speed of corn ear within threshing crescent and number of impacts received by the corn ear were increased with increase of linear velocity of rasp bars irrespective of cylinder filler plates are used. Video analysis of corn ear movement showed that the speed of corn ears movement in the threshing crescent highly depends on linear velocity of rasp bars. During the trials, speed of corn ears within threshing crescent, number of impacts received by the corn ear, rising height of the corn ear after impact of rasp bar and time between two impacts of rasp bar to the corn ear, depending on the shape of filler plates of threshing cylinder were found. Cylinder rotation and linear velocity of rasp bars (11.00 m s -1, 14.14 m s -1 and 17.28 m s -1) were determined by using threshing cylinder covered with filler plates having 4 different shapes. Tangential threshing unit was used in the experimental trials. The main objective of the research was to establish movement of corn ears within the threshing crescent between the cylinder and the concave using high-speed recording method.