Scientists in Russia and Switzerland have recently used the microchip to electrically stimulate the spinal cord to restore the mobility of paralyzed patients.
Damage to the spinal cord can cause some or all of the paralysis of the limbs. Scientists try to treat the injury in different ways, but most researchers focus on the direction of stem cell introduction to restore the damaged spinal nerve, with the help of electronic devices. The method has only been followed by a small number of researchers.
The Russian research team has found through experiments that even in the most severe cases of spinal cord injury, electrical stimulation and specially tailored “exoskeleton†will be able to restore the patient's ability to act. To this end, the researchers developed a special chip that tracks the motion commands emitted by the cerebral cortex and interprets this signal as a command that the spinal nerves can receive, thereby transmitting the correct motion information through the nerves to the muscle tissue.
Roundness Measuring Instruments
Roundness meter is a length measuring tool for measuring roundness using the rotary axis method. The roundness meter is a measuring tool for measuring the roundness error of the workpiece using the rotary axis method. Roundness tester is divided into two types: sensor rotary type and workbench rotary type. During measurement, the measured part is installed concentrically with the precision shaft system, and the precision shaft is attached with an inductive length sensor or a workbench for precise circular motion. It is composed of sensor, amplifier, filter and output device of the instrument. If the instrument is equipped with a computer, the computer is also included in the system.Roundness Tester
The principle of the roundness meter is the same as that of the coordinate measuring machine. In fact, its working principle is very simple. The coordinate measuring machine is a point acquisition tool. Its principle is to collect points first, and then form a line from points, and then form a three-dimensional model from lines. CMM is a kind of measuring equipment that has a guiding mechanism, a length measuring element, a digital display device in three mutually perpendicular directions, and a worktable that can place the workpiece (not necessarily large or huge). The measuring head can be moved to the measured point easily by manual or motorized means, and the coordinate value of the measured point is displayed by the reading device and the digital display device. Obviously, this is the simplest and most primitive measuring machine. With this measuring machine, the coordinate value of any point in the measured volume can be displayed through the reading device and digital display device.
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