Banner MULTI-BEAM Series - Manual (Page 13)

FIBER OPTIC Mode
(glass fiber optics)
SBFV1
Range: see excess gain
curves
Response: 1ms on/off
Repeatability: 0.3ms
Beam: visible red, 650nm
Fiber optic information:
IT13S: individual assembly
.06in (1,5mm) dia. bundle
IT23S: individual assembly
.12 in. (3mm) dia. bundle
BT13S: bifurcated assem-
bly, .06 in. (1,5mm) dia.
bundle
BT23S: bifurcated assem-
bly, .12 in. (3mm) dia.
bundle
L9: .5in. (12mm) dia. lens
L16F: 1.0 in. (25mm) dia.
lens
For information on the
complete line of glass fiber
optics, see Banner product
catalog.
Convergent beam sensors like model SBCVG1 are often used for color registration sensing. However, there are
some registration applications where the use of bifurcated fiber optics is beneficial. Fiber optics are able to fit
into tight locations which are too small for a convergent sensor. Fibers also allow a choice of image size. It is
important to create an image size which is smaller than the registration mark in order to maximize optical contrast
and to ease sensor response requirements. Fibers allow a match of the light image to the geometry of the
registration mark. Scanner block model SBFVG1 will sense most bold color differences, including red-on-white.
Use only power blocks which switch dc (e.g. PBT, PBP, PBO, PBAT, etc.) for fast response.
Scanner block model SBFV1 supplies visible red light to the emitter half of a glass fiber optic photoelectric system. Visible light sensors have less optical energy
as compared to infrared systems. There are, however, some sensing situations which require visible light wavelengths in order to realize adequate optical contrast.
Opposed fibers using visible red light are used to reliably sense translucent materials (e.g. plastic bottles) which appear transparent to infrared opposed sensors. Fiber
assembly model BT13S used with a the model L9 or L16F lens makes an excellent visible light sensing system for retroreflective code reading as well as many short-
range retroreflective applications (e.g. retro scanning across a narrow conveyor). When combined with a bifurcated fiber, model SBFV1 may be used for color
registration sensing for applications where there is a large difference between the two colors (e.g. black-on-white). For combinations of red-on-white, however,
the visible-green light source of model SBFVG1 (below) is needed. Visible light emitters are also helpful for visual system alignment and maintenance.
SBFVG1
Range: see excess gain curve
Response: 1 ms on/off
Repeatability: 0.3ms
Beam: visible green,
560nm
VISIBLE GREEN LIGHT SOURCE
for COLOR SENSING
(REGISTRATION CONTROL)
FIBER OPTIC Mode
(glass fiber optics)
10
1
DISTANCE
100
1000
SBFV1
..1 IN 1 IN 10 IN 100 IN
Opposed mode
with IT13S
fibers
with IT23S
fibers
with IT23S
fibers, L9
lenses
E
X
C
E
S
S
G
A
I
N
I
10
1
DISTANCE
100
1000
SBFV1
..1 FT 1 FT
Retroreflective mode,
with BRT-3 reflector
10 FT 100 FT
with L9 lens,
BT13S fiber
with L16F lens,
BT13S fiber
E
X
C
E
S
S
G
A
I
N
I
10
1
DISTANCE
100
1000
.01 IN .1 IN 1 IN 10 IN
(Range based on
90% reflectance
white test card)
Diffuse mode
SBFV1
E
X
C
E
S
S
G
A
I
N
I
BT23S fibers
BT13S fibers
10
1
DISTANCE
100
1000
.01 IN .1 IN 1 IN 10 IN
(Range based on
90% reflectance
white test card)
Diffuse mode
BT23S
fiber
SBFVG1
E
X
C
E
S
S
G
A
I
N
I
0
0
OPPOSED DISTANCE--INCHES
.5
1.0
1.5
.5
1.0
1.5
3 6 9 12 15
I
N
C
H
E
S
SBFV1 opposed mode
IT13S fibers IT23S fibers
0
0
DISTANCE TO REFLECTOR--FEET
2
4
6
2
4
6
4 8 12 16 20
I
N
C
H
E
S
SBFV1 retroreflective mode
BT13S fibers
with
L9 lenses with
L16F lenses
with BRT-3 reflector
0
0
DISTANCE TO 90% WHITE TEST CARD--INCHES
.025
.05
.075
.025
.05
.075
.3 .6 .9 1.2 1.5
I
N
C
H
E
S
SBFV1 diffuse mode
BT13S fibers
BT23S fibers
0
0
DISTANCE TO 90% WHITE TEST CARD--INCHES
.025
.05
.075
.025
.05
.075
.1 .2 .3 .4 .5
I
N
C
H
E
S
SBFVG1
BT23S fiber
MULTI-BEAM
3- & 4-wire Scanner Blocks
OPPOSED MODE
RETROREFLECTIVE MODE
OBJECT
RETRO TARGET
DIFFUSE MODE
OBJECT
Models Excess Gain Beam Pattern Sensing Mode
OBJECT
13
VISIBLE RED LIGHT SOURCE