SI-H Muscle Testers
34
WORLD PRECISION IN STRU MENTS
Fig. 32 The cross hair mark is etched on the front of the camera, which is mounted just behind
the optical cuvette.
SI-SARCAM Front
SI-SARCAM Back
Laser
A
V
OI
D
EXPO
SURE
Laser radiation emit
ted from this aperature
A
void direc
t exposure to
the beam
Laser diode waveleng
th
: 630–680nm
MaxOut: 5mW Class I
II A L
aser Produc
t
Optical Cuvette
Cross Hair Mark
Camera
Laser X-Y
Adustment Knob
Laser Height
Adustment Knob
CCD Detector
Chip
Camera X-Y
Adustment Knob
Camera Height
Adustment Knob
Fig. 33 The front and back of an SI-SARCAM system is shown mounted on an SI-MKB
platform.
To adjust the laser:
• Use
the
Camera X-Y Adjustment Knob
and the
Camera Height Adjustment
Knob
for coarse alignment of the position of the camera.
•
Verify that the camera's front plate is perpendicular to the main laser beam.
• Use
the
Laser X-Y Adjustment Knob
and the
Laser Height Adjustment Knob
for
the fi ne alignment of the horizontal and the vertical position of the laser.
•
When the camera is properly aligned the light of the fi rst order diffraction hits
the sensitive area of the CCD detector chip. It may be necessary to adjust the
vertical position (not the horizontal position) of the camera for a maximum
