Today we tried to test the boards and galvo. 

Since at this moment we don't have a quadrant yet, we tried to send signals through the check point and to see if the galvo give any response. 

We got two galvo and two boards, their situations are below:

Board 1: It is able to give both x and y direction correction signal to the galvo, but the monitor ports for the currents send to galvo both have high frequency oscillation, especially in x direction, the amplitude of this oscilation is very large.

Board 2: Only the y output can drive the coil, for the x direction when we switched on the board, we could see the mirror on the galvo has a sudden move and then goes back slowly to the original position. The monitor signals for both x and y ports are at their maxmum, so they don't change when we send the signals through check point. 

We are going to tune the offset of the board to see if the situation can be changed.

Galvo 1: Working fine. We could hear the vibration sounds from both the motors.

Galvo 2: One of the mirrors is working fine, the other one is a bit loose from the motor, I think after we fasten it, it could be fine.