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In the computer set the straight line, what comes out is the wave

Wave up laser2016-12-1477322

Description: CertainGalvanometerThere is no problem with the system, and it is not possible to replace the new computer D/A conversion card, and the galvanometer and the optical base are also fully insulated. There is no problem with the D/A card to the galvanometer data line, but the set lines are all wavy lines.

In the computer set the straight line, what comes out is the wave
Don't know why?

Analysis: The situation of waves has been encountered more before, but the most common signal interference is caused, the main factors that interfere with the amplitude mirror signal are laser power supply and acousto-optic driver, and the source of the interference effect of external power grid fluctuations on the galvanometer is investigated. You can try whether the lines scanned with the indicator light are wavy when the laser power driver is not turned on. In the case of making sure that there is no interference in the above steps, first pneumatic laser power supply to see if there is any blue wave phenomenon. Then gradually increase the output power of the laser power supply and observe the traced lines. Finally, turn on the acousto-optical drive to observe, and it is possible to determine where the interference is coming from at which step the wave phenomenon occurs. Once you've identified the source of the interference, think of a solution to the interference.

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