Commomly, Laser marking Machine is very hard to be effected by other signal as it installs a part called Wave filter, which can be ensure Laser Marking Machine's stabilization. But in case, though very little chance, we still have to know how to identify.
Saying we will use Laser marking Machine to mark a straight line, but it come to a line not straight. let us first inspect galvanometer system and Computer D/A card, if it is not their problem. Then the problem maybe from signal interfeerence.
The main signal interference are from laser power supply or acousto-optic driver. They effect the signal through the outside grid fluctuations on the vibration mirror.
We can first figure out which part is the ture signal interference. First, let's turn off the laser power driver, use light to scan out the lines, if still comes our unstraight line. Apprently, it is not Laser marking machine's laser driver problem. After that, we can go for next step. We check the first pneumatic laser power to see whether there is wave phenomenon. Then gradually increasing laser output power, to observe the traced line. if Laser Marking machine still comes wave line, we have to start acousto-optic device, observe the wave phenomenon. Basic we can find out from where signal interference comes out. Finding the interference source, it will be easily to solve interference.
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