Bar Code Label Detection. Size and Edge Detection APPLICATIONS

Transcription

1 Bar Code Label Detection 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. EE--SX199 Bar Code Printer EE- SY169(A) EE- SY169(A) Bar Code Labels Size and Edge Detection The EE-SY190 microsensor detects the size and edge of overhead transparency film or white paper without detecting the background surface. Paper or film 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. EE-SY190 Plotter Head 5.0 mm 5.5 mm

2 Control of Display Data Used in gas flow computers for management of data, such as flow rate and pressure. Attaches directly to gas pipeline. 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. Dollar Wheel Casino Games Back of Wheel Three EE-SPY402 sensors are mounted on a stationary board behind the wheel, inside a box. Sensors in the pattern OFF-ON- OFF in example shown would indicate wheel in $1 position. Front of Wheel Lights flash on table according to position of pointer. Casino dollar wheel games use three EE-SPY402 photomicrosensors to light the winning selection on the playing table. 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.

3 Fluid Detection in Tubing The EE-SPX303 photomicrosensor is used in: liquid chemical management systems any application that requires fluid detection in tubing. 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. Mounting Refraction Teflon tubing (12 mm OD) EE-SPX303 Tubing without water Tubing with water Detection of Water Levels This sensor is used in water processing equipment that removes chlorine ions from water through creation of water vapor. Cleaning Tank Opaque float 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. Four EE-SPX613 sensors Max water level Min water level Water Glass Tube

4 Cam-timer Switching 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). Robot Control The EE-SX470/670 and EE-SX770/870 series of sensors are used to sense movement and positioning on robot control devices.

5 Paper Printer 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 Paper Detect EE-SX1041 Ink Ribbon End EE-SY171 Paper Feed EE-SX1018 Head Position EE-SX1055 Garage Door Opener Two EE-SX1042 detectors are used to sense the speed and direction of travel of a garage door opener motor. Detects speed and direction of garage door motor. EE--SX1042 Bidirectional Encoder

6 Material Handling Systems Counting Sensing Opaque Bottles 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. Counting Sensor: EE-SPW421-A Feature: 30 cm distance Conveyor Sensing Conveyor Sensing with Sensors Mounted on Single Side Sensor: EE-SPW311 Feature: 1 m distance Sensor: EE-SPY312 Feature: Reflective sensor. Light modulation reduces external interference

7 Floppy Disk Drives Indicates the presence of a disk in the drive and locates the zero track. Presence Detection EE-SX1088-W1 Floppy Disk Track Zero EE-SX1088-W1 Checking Component Size The EE-SX470/670 and EE-SX770/870 series are used in pairs to sense the displacement of a lever, which indicates component size.

8 Medical Applications Presence Detection in Dispenser 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. Sensors: EE-SPY312 with EE-1006 connector Feature: Convergent Lens with Operation Indication 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

9 Checking Component Mounting The EE-SX670 is used to determine the precise location of components mounted on printed circuit boards. 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. Component Discrimination 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.

10 Semiconductor Applications Wafer Detection 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. Sensor: EE--SPY312 with EE connector Feature: detects dark objects Semiconductor Manufacturing Equipment Sensor: EE-SPY412 with EE-1006 connector Feature: detects dark objects Lead Frame Detection Sensor: EE-SPW321 Feature: slim amplifier (7.5 mm)

11 PCB Hole Detection 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. Vertical or Horizontal Position Detection 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 Photomicrosensors with narrow slots.

12 Paper Thickness Detection Paper 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. Roller Z4D-A01 Sensing paper Z4D-A01 Movable roller Sensing motion NOTE: DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters to inches divide by OMRON ELECTRONICS, INC. One East Commerce Drive Schaumburg, IL OMRON OMRON CANADA, INC. 885 Milner Avenue Scarborough, Ontario M1B 5V Cat. No. EO5DAX4 1/99 Specifications subject to change without notice. Printed in U.S.A