SM411F_Service Manual.pdf - 第53页

2. If the corresponding fiducial mark cannot be recognized correctly , teach the position of the Reference fiducial ma rk at the center of the calibration tool placed on the top surface of the ANC. 3. If the fiducial mar…

1.2.3. Fiducial Camera Scale Calibration

If the fiducial camera is not calibrated, the rest of the buttons are disabled.

 <1. Fid> button

Teach the position of the Reference fiducial mark located at the top surface of

the ANC.

The following is the process that performs teaching of the calibration tool

placed on the top surface of the ANC by using the Reference fiducial camera.

1. When performing the mark setup, select the gantry and click the <1. Fid>

button. If the following screen appears, click the <Move> button in the

<Teach> group.

Then the fiducial camera moves to the corresponding position. The mark

ID of Gantry 1 is fixed as No. "7", and No. "8" for Gantry 2.

2. If the corresponding fiducial mark cannot be recognized correctly, teach

the position of the Reference fiducial mark at the center of the calibration

tool placed on the top surface of the ANC.

3. If the fiducial mark position teaching is performed accurately, click the

<OK> button to apply the changed value.

4. Perform calibration for Gantry 2 in the same manner.

 <2. Fid Cam Scale> button

Perform calibration of the fiducial camera. There is no calibration required to

be done in advance in order to calibrate the scale (um/pixel) and rotation (deg)

of the fiducial camera. No separate jig is needed to perform the calibration.

The following is the procedure to calibrate the ‘fiducial camera scale’:

1. Click the <2. Fid Cam Scale> button in the <Calibration Menu> group.

2. If the <2. Fid Cam Scale> button is clicked, a message “Fid-Cam will

Move to Specific Fiducial Mark’s Position. Click [Next] to Move.” appears

in the message box. Click the <Next> button to move the fiducial camera

to the position for the ANC of Fiducial Mark.

3. The message “Calibration is Prepared. To Calibrate, Click [Next]” appears.

At this time, click the <Light…> button and adjust the brightness of the

light in the ‘Light Control’ dialog box so that the fiducial mark that is seen

in the ‘SMVision’ window can be seen clearly. Then click the <Next>

button.

4. The calibration is performed automatically. If it is completed, the

calibration result is displayed as shown in the following figure. Click the

<Update> button to apply the new calibration value.