Bar Code Label Detection. Size and Edge Detection APPLICATIONS

B a r Co d e

L a b e l De t e c t i o n

APPLICATION:

The EE-SY169(-A) and EE-SX199 sensors are used for bar code label detection. The EE-SX199 detects the absence or presence of labels (see Bar Code Printer illustration at right). In other applications where the labels are adjacent with no space in between, the edge of each label is painted black. The EE-SY169 can then be used to distinguish between the white and black portion of each label. This is made possible by the

EE-SY169(A)’s high signal -to-noise ratio. The EE-SY169(A)’s high signal-to-noise ratio is a direct result of the sensor’s optical arrangement and convergent lens.

Bar Code Printer

Bar Code Labels EE-SY169(A) EE--SX199 EE-SY169(A)

Si ze a n d Ed g e

De t e c t i o n

The EE-SY190 microsensor detects the size and edge of overhead transparency film or white paper without detecting the background surface.

FUNCTION:

The EE-SY190 is positioned below the head of a color plotter. The sensor detects objects at a distance of 5.0 mm, but it will not detect background objects at 5.5 mm. A dark background with a rough surface works best.

Paper or film

EE-SY190

Plotter Head

5.0 mm 5.5 mm

Co n t r o l o f

Di s p l a y Da t a

APPLICATION:

Used in gas flow computers for management of data, such as flow rate and pressure. Attaches directly to gas pipeline.

FUNCTION:

Two EE-SPZ401-A photomicrosensors are used to activate and manipulate the data display of a completely sealed gas metering computer. The sensors, positioned to look through 3/8 inch thick glass, detect the presence of an operator’s fingers. They function like arrow keys on a computer to scroll through parameter displays. The data is displayed on a small LCD screen visible to the operator.

Do l l a r Wh e e l

Ca s i n o Ga m e s

Back of Wheel

Front of Wheel

Lights flash on table according to position of pointer.

Three EE-SPY402 sensors are mounted on a stationary board behind the wheel, in-side a box.

Sensors in the pattern OFF-ON-OFF in example shown would in-dicate wheel in $1 position.

APPLICATION:

Casino dollar wheel games use three EE-SPY402 photomicrosensors to light the winning selection on the playing table.

FUNCTION:

Reflective tape strips are positioned behind the wheel and used to activate the

photomicrosensors for each betting category on the wheel. The on/off state of each sensor acts as part of a binary code, so that the position and number of tape strips on each portion of the wheel form a distinct code which makes the correct light on the table flash.

Fl u i d De t e c t i o n

i n Tu b i n g

APPLICATION:

The EE-SPX303 photomicrosensor is used in:
liquid chemical management systems
any application that requires fluid detection

in tubing.

FUNCTION:

The photomicrosensor is positioned in such a way that the infrared light beam passes through the clear plastic tube. The different light refraction angles of an empty tube vs. the fluid media allow the sensor to detect the presence of the fluid.

Refraction Mounting

Teflon tubing (12 mm OD)

Tubing without water

Tubing with water

EE-SPX303

De t e c t i o n o f

Wa t e r L e v e l s

APPLICATION:

This sensor is used in water processing equipment that removes chlorine ions from water through creation of water vapor.

FUNCTION:

Water contained within a tank is pressurized to create water vapor. The water rises in a glass tube, and is monitored by a bank of four sensors. The EE-SPX613 sensors are used to detect minimum, mid-range, and maximum levels. Glass Tube Opaque float Cleaning Tank Water

Max water level

Min water level

Four EE-SPX613 sensors

Ca m -t i m e r Sw i t c h i n g

APPLICATION:

Single-side mounting possible

(EE-SX673/473). Easy adjustment and optical axis monitoring with an indicator (EE-SX670/470, EE-SPX). (If the mounting space is narrow, mount models incorporating an operation indicator and those without an operation indicator next to one another.) Light modulation effectively reduces external light interference (EE-SPX).

Ro b o t Co n t r o l

APPLICATION:

The EE-SX470/670 and EE-SX770/870 series of sensors are used to sense movement and positioning on robot control devices.

Pa p e r Pr i n t e r

APPLICATION:

As shown in the illustration,

photomicrosensors are used in printers to:
Detect the presence of paper

Detect the motion of the print head and paper feed mechanisms

Detect the end of the ribbon

EE-SY171 Ink Ribbon End

Paper Detect EE-SX1041 Paper Feed EE-SX1018 Head Position EE-SX1055

Ga r a g e Do o r Op e n e r

Two EE-SX1042 detectors are used to sense the speed and direction of travel of a garage door opener motor.

Bidirectional Encoder

EE--SX1042 Detects speed and direction of garage door motor.

M a t e r i a l H a n d l i n g

Sy s t e m s

Counting APPLICATION:

The illustrations on this page show five sensor applications related to material handling. The EE-SPW321-A/421-A work at a sensing distance of 30 cm and are used to detect and count objects such as pill bottles with labels or opaque bottles.

The EE-SPZ301-W01 with fiber optic cables attached performs similar counting functions. .

The EE-SPW311 works at a greater sensing distance (1 m) for larger objects such as boxes. In the example shown, it detects the presence of boxes in a conveyor line and sends a signal to activate the next conveyor.

Sensor: EE-SPW421-A Feature: 30 cm distance Sensing Opaque Bottles

Counting

Conveyor Sensing

Sensor: EE-SPW311 Feature: 1 m distance

Conveyor Sensing with Sensors Mounted on Single Side

Sensor: EE-SPY312 Feature: Reflective sensor. Light modulation reduces external interference

Fl o p p y Di s k Dr i v e s

APPLICATION:

Indicates the presence of a disk in the drive

and locates the zero track. Presence Detection

EE-SX1088-W1 Track Zero EE-SX1088-W1 Floppy Disk

Ch e c k i n g Co m p o n e n t

Si ze

The EE-SX470/670 and EE-SX770/870 series are used in pairs to sense the displacement of a lever, which indicates component size.

M e d i c a l A p p l i c a t i o n s

Feature: Convergent Lens with Operation Indication

Sensors: EE-SPY312 with EE-1006 connector

APPLICATION:

The photomicrosensors are used to detect the presence of test tubes in computerized analyzers and the position of test tubes in a motorized turntable. In another application, a bank of sensors is used to detect the presence of pill bottles in dispenser slots.

FUNCTION:

In all three examples, the specified sensors are used in conjunction with EE-1006 connectors. See the illustrations for the sensor part numbers.

Position Sensing

Sensors: EE-SPX672 with EE-1006 connector Feature: Operation Indication

Presence Detection in Analyzer

Sensor: EE-SPY411 with EE-1006 connector Feature: convergent lens

Ch e c k i n g Co m p o n e n t

M o u n t i n g

APPLICATION:

The EE-SX670 is used to determine the precise location of components mounted on printed circuit boards.

FUNCTION:

The EE-SX670 is used in conjunction with a EE-1006 connector. Reliable positioning is assured by 0.8-mm aperture width. An operation indicator improves adjustment and optical axis monitoring.

Co m p o n e n t

Di s c r i m i n a t i o n

APPLICATION:

The EE-SX470/670 and EE-SX770/870 series are used in combination with dogs and pushers to determine the type of component being carried on a conveyor.

Se m i c o n d u c t o r

A p p l i c a t i o n s

Sensor: EE--SPY312 with EE--1006 connector Feature: detects dark objects

APPLICATION:

As shown in the illustration, sensors are used to detect the presence of semiconductor wafers as they are dispensed onto a

conveyor and processed. They are also used to check the alignment of lead frames.

Semiconductor Manufacturing Equipment

Sensor: EE-SPY412 with EE-1006 connector Feature: detects dark objects

Lead Frame Detection

Feature: slim amplifier (7.5 mm) Sensor: EE-SPW321

PCB H o l e De t e c t i o n

APPLICATION:

With its built-in microprocessor, the Z4D-F04A/D is able to attain a 5
m resolution. The 5
m resolution of the Z4D-F04A/D make them ideal for use in detecting holes in printed circuit boards.

Ve r t i c a l o r H o r i zo n t a l

Po s i t i o n De t e c t i o n

APPLICATION:

In this application example, two

EE-SX670/470 Photomicrosensors sense the slits on the table which are evenly spaced. The position of the table is detected from the detectable slits that are different in phase. Reliable operation is assured by

transmissive, high-resolution

Pa p e r T h i c k n e s s

De t e c t i o n

The Z4D-A01’s ability to detect displacement as small as 10
m enables it to discriminate between 1, 2, and 3 sheets of paper.

Cat. No. EO5DAX4 1/99 Specifications subject to change without notice. Printed in U.S.A OMRON ELECTRONICS, INC.

One East Commerce Drive Schaumburg, IL 60173

NOTE: DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters to inches divide by 25.4.

1-800-55-OMRON

OMRON CANADA, INC. 885 Milner Avenue

Scarborough, Ontario M1B 5V8

416-286-6465