GP1A33R Datasheet, PDF (5/5 Pages) Sharp Electrionic Components – OPIC Photointerruper with Encoder Function

Measurement Conditions
A
4-R1.3
3
GP1A33R
Disk center
Disk
f 26.48, 0.1t
60 slits
1.4
S₂
6.4
(15.825)
11.4
A
S₁
9.9
(9.125)
GP1A33R
<Basic Design>
RO ( distance between the disk center and half point of a slit ) ,
P ( slit pitch ) , S 1 and S 2 ( installing position of photoint-
errupter ) will be provided by the following equations.
Slit pitch : P ( slit center )
R O=
N
60
x 10.89 ( mm )
P= ^{2x p x RO} ( mm )
N
N: number of slits
S1= RO- 1.765 (mm ), S2= S1+ 6.7 (mm )
Note ) When the number of slits is changed, values in
parenthesis are also changed according to the number.
Enlarged drawing
of A portion
Slit pitch : P
P
Disk center
r₁= r₂
( Ex. ) In the case of
N= 100P/R
RO=
100
60
x 10.89 ( mm )
= 18.15mm
2x p x 18.15
P=
100
= 1.14mm
S1= 18.15- 1.765
= 16.385mm
S2= 16.385+ 6.7
= 23.085mm
s Precautions for Use
( 1) This module is designed to be operated at I _F = 30mA TYP.
( 2) Fixing torque : MAX. 0.6N • m
( 3) In order to stabilize power supply line, connect a by-pass capacitor of more than 0.01 µF
between Vcc and GND near the device.
( 4) As for other general cautions, refer to the chapter “ Precautions for Use ” .