optical proximity switches
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Beam of invisible pulsed modulated infra - red light is produced by emitter. This beam is sensed by receiver at another end (in through beam version) or reflected by object and received by receiver placed near emitter (in diffuse version). When this beam is interrupted by object, the receiver signal gets changed and signal is produced.
Optical Proximity Switch
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Optical Proximity switch offer non-contact sensing of almost any substance or object up to a range of 10 meters. These sensors consist of a light source (usually an LED, light emitting diode, in either infrared or visible light spectrum) and a detector (photodiode). Due to the high intensity infra-red energy beam, these sensors have major advantages over other opto-electronic systems when employed in dusty enviroments. With their focused beam and long range, opto-electronic sensors are increasingly used in applications where other sensing techniques are lacking in sensing distance or accuracy. These are available in a variety of modes including:1) Infrared Proximity (Diffuse Reflective)2) Transmitted Beam (Thru-beam)3) Retroreflective (Reflex)4) Polarized Retroreflective (Polarized Reflex)5) Fiber Optic6) Background Rejection
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optical proximity switches
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This sensor takes a continuous reading of any obstacle and settles it at output in TTL form within 2ms. The sensor provides easy interface of 3-wire with power, ground and the output voltage. The sensor works on 5V input
optical proximity switches
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It senses any object;longer sensing distance; medium counting speed; high position sensing accuracy. These are infra-red type sensors incorporating advance and reliable technology. These are offered in tubular metallic, acrylic & plastic enclosures. Special models of optical switches are available with an integrated optical fibre cable for flexible mounting and for sensing miniature objects high temperature objects.
optical proximity switches
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Diffuse Scan Sensor Optical Proximity Switches
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optical proximity switches
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Introduction Sai Control System offers optical proximity switches with modulated Infra Red beam consisting of transmitter and receiver. The state of the art modulation and detection circuit ensures reliable operation of sensor in hostile environment and are unaffected by temperature variation and stray light. Applications These are widely used for sensing metals and non metals like wood, glass, paper and water etc. These switches are used for automation in various industries like pharmaceuticals machines, packaging machines, food processing, textile machines, conveyor system, automobile engineering industries, cement plants, safety and security appliances.
optical proximity switches
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IntroductionThe Optical Proximity Switches are a reliable solution for automation where other Proximity Switches have limitations.These are Infra-red type sensors incorporating advance and reliable technology.These switches have a distinct advantage of higher sensing distance over Inductive and capacitive type switches. These can work more reliably in a noisy electro-magnatic radiation environment. As an infra-red wavelength is used, it is immune to visible light interference.Applications These switches are very useful for counting and position sensing application in Pharma, food, Paper, Plastic Automobile industry. They also work effectively in level sensing applications for solids, grains, sand, ice and other non-metallic bulk material. Some typical applications are; Component positioning sensing in Electronic Industry Counting of bottles, Jars, Containers etc. Glass sheet position sensing For security 7 safety in machine Tools, presses etc. Colour sensing applications Principal Of OperationThese Switches incorporates an infra-red transmitter and receiver device hose in single enclosure or separate enclosure. The precision pulsed transmitter beam is interrupted or reflected by the object. The advanced electronic circuit generates an effective output signal when the object is sensed.Diffused Scan: Diffused scan type switches have both transmitter and receiver is same enclosure. The closely focused beam is reflected back by the object. Through-Beam: Through-Beam type switches have separate transmitter and receiver. The object is sensed when the beam is interrupted.Retro Reflective: Retro reflective switches use a special reflectorto reflect back the beam. When an object interrupt the beam, an output signal is generated. These model have greater sensing distance compare to diffuse scan type. The receiver does not considerthe reflection from the object.Technical Terms Standard ObjectThe sensing distance specified for diffused scan switch is considered with a white object having minimum 90% reflectivity.ConstrictionThese switches are offered in tubular metallic, Acrylic and Plastic enclosure. Standard model are available with integrated two meter long cable. Switches with built in (Male) connector.
optical proximity switches
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It senses any object;Longer Sensing Distance; Medium counting speed; High position sensing accuracy. These are Infra-red type sensors incorporating advance and reliable technology. These are offered in tubular metallic, acrylic & plastic enclosures. Special models of Optical Switches are available with an integrated Optical Fibre cable for flexible mounting and for sensing miniature objects / high temperature objects.
optical proximity switches
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Optical Proximity Switches for sensing all types of objects from large distances. Magnetic Proximity Switches for high speed sensing of metallic objects (Applications such as Gear Wheel Speed Sensor) Ultra-Sonic Proximity Switches usually for Liquid Level Sensing applications.Sensor)
optical proximity switches
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optical proximity switches
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optical proximity switches, Inductive Proximity Switches
optical proximity switches
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optical proximity switches
optical proximity switches
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optical proximity switches, Flameproof Wall Mounting Fans, valves & cocks
optical proximity switches
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optical proximity switches, Electromagnetic Vibrator Controllers
optical proximity switches
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optical proximity switches
optical proximity switches
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optical proximity switches
Optical Proximity Switch
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Optical Proximity Switch, Gateway Protocol Converters
