Mobile device rotational part and fixed part of the signal, the transmission of the slip ring, now is widely used in industry. It is made of some metal loop brush body contact ring ring main body, the protective coat of fixed bracket has several other components. Dispensing ring main body and laminated pressed into one of two ways, in the surface of metal ring and wire brush usually quality of plating surface treatment and coating are mostly precious metals, mainly in order to meet the good electrical conductivity, wear resistance, corrosion resistance and conductive slip ring other requirements.
Most high-tech, high demand areas, often in the heat of the application of conductive slip ring, vibration, high speed rotating under the condition of continuous work, so the slip ring the requirement of high performance and high quality, also must pass a series of experiments, prove the reliability of the work in a special environment slip ring. So how do you detect conductive ring, in high temperature environment, such as the reliability of it?
In fact, by the Fiber Optic Rotary Joint under the vacuum state of see in different temperature and different test speed, due to signal sent by the changes, and the SNR of the voltage variation, temperature and speed. Experimental results show that under vacuum, at elevated temperature increase in the speed and voltage signal to noise ratio, but even if the temperature rises to 100 degrees, up to 1.2 m/s rotational speed, signal to noise ratio is still more than 278/1, so we can get a conclusion that the influence of the temperature and speed of the slip ring is small, transmitting electrical signals. Therefore, under the high temperature, vibration, under the condition of high-speed rotation, normal and stable operation of the conductive ring.