12
U-CBR1, U-CBR2
5. Rotate the compensator knob to adjust in such a manner that
the point to be measured on the specimen attains extinction.
At this point, read the angle. → θ
· If the reading on Scale 1 is indicated by black digits
Read the white digits on Scale 2.
· If the reading on Scale 1 is indicated by green digits
Read the green digits on Scale 2.
} Find the angle by totaling the readings of Scales 1 and 2.
(Tip)
γ
axis direction (vibration direction in which the
speed of the light becomes slower) when the
specimen became dark when the digits on
Scale1 were rotated towards the black digits.
γ
axis direction when the specimen became
dark when rotating in direction of the green
digits.
Insertion
direction
of slider
Insertion
direction
of slider
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