HEDS-9100 HP [Agilent(Hewlett-Packard)], HEDS-9100 Datasheet - Page 7

• Manufacturer Part Number: HEDS-9100
• Description: Two Channel High Resolution Optical Incremental Encoder Modules
• Manufacturer: HP [Agilent(Hewlett-Packard)]

Figure 4. Codestrip Design
Note: All parameters and equations must be satisfied over the full length of codestrip travel including maximum codestrip runout.
Recommended Codewheel Characteristics
Recommended Codestrip Characteristics and Alignment
Codestrip design must take into consideration mounting as referenced to either side A or side B (see Figure 4).
STATIC CHARGE WARNING: LARGE STATIC CHARGE ON CODESTRIP MAY HARM MODULE.
PREVENT ACCUMULATION OF CHARGE.
Window/Bar Ratio
Window Distance
Window Edge to
Module Opt Center Line
Parallelism
Module to Codestrip
Window/Bar Ratio
Window Length
Absolute Maximum
Codewheel Radius
Parameter
Mounting as Referenced to Side A
Parameter
Symbol
w
L
R
/
w
c
b
Symbol
W
w
L
S
/W
Minimum
1.8 (0.07)
b
0.7
0.7 min., 1.4 max.
0.90 (0.035) min.
L
Mounting Ref.
a
1.3 max.
0.51 (0.020)
Side A
R
+
Maximum
op
1.4
(0.075)
1.9
Mounting as Referenced to Side B
mm (inch)
0.7 min., 1.4 max.
0.90 (0.035) min.
L
Mounting Ref.
b
(inch)
Units
mm
1.3 max.
3.23 (0.127)
Side B
Includes eccentricity
errors
Notes
mm (inch)
mm (inch)
Units
deg.
2-69