Measurement Of Right-Angle Coordinates; Measurement Of Height (Motorized Frame Only) - Olympus STM7 Instructions Manual

5-2 Measurement of right-angle coordinates

Y
5
4
0

5-3 Measurement of height (motorized frame only)

A B
D
C
E F
54
3
2
X
1
Z
3
Z
2
Z
1
Z
0
} The operability can be improved by using the rotatable stage STM7-
RS100/STM7-RS200/STM7-RS300.
1
Place the specimen on the center of the stage glass.
2
Determine the origin, X-axis and Y-axis of the specimen, and align the
direction of stage travel with the axes. For instance, when measuring
a thin plate part as shown in figure on the left, set line 01 to the X-axis
and line 05 to the Y-axis.
3
Move the stage so that the specimen is positioned directly below
the objective, then bring the specimen in focus as outlined in
Focusing on previous page.
Align line 01 with the horizontal cross hair line by alternating
specimen rotation (or rotary stage operation) and specimen feeding,
then align line 05 with the vertical cross hair line by feeding the
specimen. If the specimen tends to be moved by the movement of
the stage, fix the specimen with oil clay, etc. At this position, origin
0 of the specimen should be aligned with the intersection of the
eyepiece cross hairs, and the counter coordinate readings should
be X0 and Y0. Now press the X-RESET and Y-RESET buttons.
4
Next, align the intersection of the cross hairs with points 1, 2 and 3
by moving the stage, and read values X
between these readings and values X
coordinates of the specimen contour in relation to origin 0.
1
Place the specimen on the table glass. If right-angle coordinates are
to be measured in addition to height, place the specimen as outlined
in section 5-2 above.
2
Use a 20X or higher-power objective.
3
Bring point Z (on the stage glass surface) into focus. Then press the
0
Z-RESET button.
When focusing on the glass surface, be careful not to let
CAUTION
the objective hit the specimen or the stage glass.
4
Raise the reflected light illumination arm by using the fine/coarse
focusing knob of the focusing unit of the frame or the FOCUS button
of the focus controller STM7-MCZ. Bring plane E-F into focus and read
the counter indication. This reading becomes the value of Z
5
Bring planes C-D then A-B into focus, and take the readings of Z
Z . The differences between these values and the value of Z
n
the heights of the respective points.
, Y , X , Y ,... The difference
1 1 2 2
and Y indicates the right-angle
0 0
.
1
, Z
2
indicate
0
,...
3