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Follow on Google News | OPTEK's Long Distance Reflective Switch Employed in Wind Turbines for RPM SensingNon-contact infrared switch supports safe, efficient operation of wind turbines…
By: OPTEK Technology “The ability to accurately monitor turbine RPMs is crucial for their safe and efficient operation,” said Alan Bennett, vice president of worldwide sales for OPTEK Technology. “With its non-contact design, which features an emitter and sensor protected from contaminants by a clear window, the OPB732 reflective switch provides the reliability and accuracy necessary for this application.” In addition to wind turbines, the OPB732 reflective switch is ideal for use in assembly line and machine automation, equipment security, door sensor, machine safety, end of travel sensor, and non-contact reflective object sensor applications. The OPB732 Series switch has a reflective distance of more than one inch, depending on circuitry. The reflective switch configuration includes an infrared LED and phototransistor, and uses an opaque housing to reduce the sensor’s ambient light sensitivity. When infrared light strikes the phototransistor, it becomes forward biased and is considered to be in the “on” state, providing an IC(ON) current proportional to the light striking the phototransistor. When the infrared light from the LED is not reflected to the phototransistor, the device turns “off,” minimizing the IC(ON) current. The OPB732 Series infrared LED features an 850nm wavelength and a power dissipation of 100mW. Maximum forward current is 50mA and maximum forward voltage is 1.8V (If=20mA). Reverse DC voltage is 3V, with reverse current of 100μA (Vr=2.0V). The output phototransistor features collector-emitter voltage of 30V, collector DC current of 50mA, and power dissipation of 100mW. Operating temperature range for the long distance reflective switch is -40°C to +85°C. The OPB732 Series assembly is offered with PC board through-hole pins or 24”, 26 AWG wires. The phototransistor can be configured as a common collector or common emitter device. Typical pricing for OPB732 long distance reflective switch is approximately $2.85 each in quantities of 1,000 pieces. Lead time, if stock is not available, is from 4 to 6 weeks. For more information about OPTEK’s OPB732 long distance reflective switch, contact TT electronics OPTEK Technology at 1645 Wallace Dr., Carrollton, TX, 75006; call 972-323-2200, or visit OPTEK on the web at http://www.optekinc.com/ OPTEK is a leading manufacturing and solutions provider for sensing and illumination covering the infrared, visible and ultraviolet spectrum; with standard as well as application specific products for a variety of markets, including, but not limited to office machines, industrial equipment, encoders, automotive electronics, military and high-reliability applications, medical diagnostic equipment and solid-state lighting. Headquartered in Carrollton, TX, the company is ISO/TS16949: TT electronics plc is a global electronics company manufacturing a broad range of advanced electronic components, assemblies and sensor modules for the automotive, industrial, telecommunication, computer and aerospace markets. To request the electronic image, call 919-872-8172, or e-mail: beth.gaddy@btbmarketing.com Keywords: TT electronics, OPTEK, OPB732, switch, sensing, wind turbine URL: http://www.optekinc.com/ For more information, contact: Don Cook, Product Engineer OPTEK Technology 972-323-2200 dcook@optekinc.com Beth Gaddy, BtB Marketing 919-872-8172 beth.gaddy@btbmarketing.com End
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