Ink is sprayed out from the nozzle by a certain pressure, while the drive rod shake in required frequency and amplitude so as to split the ink into drops, then the machine charge the ink drops. Ink drops with different electric quantity charged are deflected by the force generated in the high voltage electric field. Meanwhile, through the movement of the products, we got the image-text coding information we need.
The gate is a detector that detects if there are metal objects, or metal detection doors. Mainly used in airports, stations, large conferences and other popular public places to check people's physical hidden metal objects, such as guns, controlled knives and so on. When the inspectors from security through, carries on the body shape of metal more than according to the weight, quantity or predefined parameter value, the security immediately alarm, and display alarm caused by metal and location, make security personnel find such person carry metal items in a timely manner
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