Abstract: An online centrifugal system includes a conveying device, a balancing and weighing mechanism, a manipulator, and a centrifuge. The conveying device, the balancing and weighing mechanism and the centrifuge are sequentially arranged. The conveying device is used to convey a sample holder for holding blood collection tubes, the balancing and weighing mechanism is used to weigh an adapter, and the centrifuge is used to perform centrifugation to blood collection tubes. The manipulator is used to grab the blood collection tubes and the adapter respectively, to convey the blood collection tubes between the adapter and the conveying device, and convey the adapter between the centrifuge and the balancing and weighing mechanism. An inlet and outlet window is provided on the centrifuge for passage of the adapter. The balancing and weighing mechanism is used to balance the adapter, thereby meeting balancing needs of the adapter.

Abstract: A radio frequency laser includes: a power box, a radio frequency cavity, an electrode, and a first metal blocking ring. A bottom plate of the power box is provided with a first installation hole and a first installation groove, and the first installation groove is arranged around the first installation hole. A top plate of the radio frequency cavity is provided with a second installation hole and a second installation groove, and the second installation groove is arranged around the second installation hole. When the power box is assembled with the radio frequency cavity, the second installation hole corresponds to the first installation hole, and the second installation groove corresponds to the first installation groove.