Each of these three (red, green and blue) reflective color sensors combines a color LED die and a light-to-voltage converter, with a corresponding color filter in a surface mount package. The output of each device is a voltage that is directly proportional to the reflected color light. Because they emit and respond to single colors, the sensors have excellent signal-to-noise ratio in applications such as currency detection and validation, label edge detection, color detection in paper, textiles and cosmetics, as well as in process control applications. Drive current may be as low as 250 µA. The TRS 1722 is rated for red wavelengths of 630nm, TRS1755 is green (567nm), and TRS1766 is blue (470nm).
Texas Advanced Optoelec-tronic Solutions, Plano, TX. www.rsleads.com/205df-280
Interchangeable heads. The ZX laser measurement sensor’s amplifier can interface with three red through-beams and eight visible red displacement sensor heads. Direct PC connectivity enables users to monitor operations, gather data and change operating values. A built-in resolution indicator aids adjustment of high and low measurement values. Displacement sensing distance is 500mm, and through-beam sensing is 2000mm.
Omron Electronics LLC, Schaumburg, IL. www.rsleads.com/205df-281
Industrial pressure transducer. The Model DCT transducer applies digital compensation against the effects of temperature and pressure changes, creating a high level of accuracy and reliability. It accepts regulated and unregulated excitation voltages, and provides output signals such as 1-5 VDC, 1-6 VDC, 4-20 mA, or a ratiometric 0.5 to 4.5 VDC. The units are offered in pressure ranges from 6 to 500 PSI, in a variety of mounting and electrical options.
Ametek, Feasterville, PA. www.rsleads.com/205df-283
Photoelectric sensor. This 30mm dia. sensor features a stainless steel housing, a tempered glass lens cover to protect against abrasion, and a Viton seal to ensure resistance to harsh chemicals. High excess gain penetrates dust, steam and grime. Suited for abu-sive environments, the sensor is offered in background suppression, retro-reflective and thru-beam modes, AC/DC or DC operation, and cable or quick-disconnect versions.
Pepperl+Fuchs In, Twinsburg, OH. www.rsleads.com/205df-284
Pressure sensors. Suited to monitor pressures in sanitary environments, such as food, beverage, dairy and pharmaceutical applications, these sensors have 316 stainless steel housings. They feature a universal, patented thread style that will accept a variety of sanitary fittings, including the popular 1½ in. and 2 in. Tri-Clamp fitting. All four units in the family have models available with ranges from 100 in. H2O to 362 psi.
ifm efector, Exton, PA. www.rsleads.com/205df-287
Position sensor. Using Enhanced Magnetostrictive Technology, the Micropulse AT linear transducer provides economical non-contact position sensing for many automated applications. Accurate, stable positioning is achievable to <10µm resolution.
Balluff, Florence, KY. www.rsleads.com/205df-289
Transducers. These compact, external-mount transducers offer positioning linearity to 0.5% and repeatability of 0.0001 in. Designed for travels of 0.5- to 78-in., the low-profile devices are sealed to IP66 and 50G shock resistance.
Transducers Direct Cincinnati, OH. www.rsleads.com/205df-291
Reflective optical sensors. The ERT-3280 Series of sub-miniature high-speed sensors combines a high-output GaAs IRED with a high sensitivity phototransistor. Optimum sensing distance is 1mm, with switching speed times of 30 µsec rise and 25 µsec fall.
Elekon, Torrance, CA. www.rsleads.com/205df-292
>Machine safety sensor. A magnetic latch between sensor and coded actuating magnet provides easy mounting and good misalignment tolerance, with positive latching capability as found in mechanical latches.
Elobau Sensor Technology, Hainesville, IL. www.rsleads.com/205df-294
Linear image sensors. The S8380 and S8381 NMOS sensors feature high sensitivity in the IR and soft X-ray regions. Operating from 200 to 1000 nm, both have peak sensitivity wavelength of 750 nm and very wide active areas.
Hamamatsu Corp, Bridgewater, NJ. www.rsleads.com/205df-295
Position and velocity sensing. Temposonics R Series Profibus DP sensors now include simultaneous position and velocity sensing capability. Position resolution is down to 5 microns, and velocity resolutions are as low as 0.04 in./sec.
MTS Sensors, Cary, NC. www.rsleads.com/205df-296
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Reflective color sensors
Interchangeable heads. The ZX laser measurement sensor’s amplifier can interface with three red through-beams and eight visible red displacement sensor heads. Direct PC connectivity enables users to monitor operations, gather data and change operating values. A built-in resolution indicator aids adjustment of high and low measurement values. Displacement sensing distance is 500mm, and through-beam sensing is 2000mm.
Omron Electronics LLC, Schaumburg, IL. 
Industrial pressure transducer. The Model DCT transducer applies digital compensation against the effects of temperature and pressure changes, creating a high level of accuracy and reliability. It accepts regulated and unregulated excitation voltages, and provides output signals such as 1-5 VDC, 1-6 VDC, 4-20 mA, or a ratiometric 0.5 to 4.5 VDC. The units are offered in pressure ranges from 6 to 500 PSI, in a variety of mounting and electrical options.
Ametek, Feasterville, PA. 
Photoelectric sensor. This 30mm dia. sensor features a stainless steel housing, a tempered glass lens cover to protect against abrasion, and a Viton seal to ensure resistance to harsh chemicals. High excess gain penetrates dust, steam and grime. Suited for abu-sive environments, the sensor is offered in background suppression, retro-reflective and thru-beam modes, AC/DC or DC operation, and cable or quick-disconnect versions.
Pepperl+Fuchs In, Twinsburg, OH. 
Pressure sensors. Suited to monitor pressures in sanitary environments, such as food, beverage, dairy and pharmaceutical applications, these sensors have 316 stainless steel housings. They feature a universal, patented thread style that will accept a variety of sanitary fittings, including the popular 1½ in. and 2 in. Tri-Clamp fitting. All four units in the family have models available with ranges from 100 in. H2O to 362 psi.
ifm efector, Exton, PA. 
Position sensor. Using Enhanced Magnetostrictive Technology, the Micropulse AT linear transducer provides economical non-contact position sensing for many automated applications. Accurate, stable positioning is achievable to <10µm resolution.
Balluff, Florence, KY. 
Transducers. These compact, external-mount transducers offer positioning linearity to 0.5% and repeatability of 0.0001 in. Designed for travels of 0.5- to 78-in., the low-profile devices are sealed to IP66 and 50G shock resistance.
Transducers Direct Cincinnati, OH. 
Reflective optical sensors. The ERT-3280 Series of sub-miniature high-speed sensors combines a high-output GaAs IRED with a high sensitivity phototransistor. Optimum sensing distance is 1mm, with switching speed times of 30 µsec rise and 25 µsec fall.
Elekon, Torrance, CA. 
>Machine safety sensor. A magnetic latch between sensor and coded actuating magnet provides easy mounting and good misalignment tolerance, with positive latching capability as found in mechanical latches.
Elobau Sensor Technology, Hainesville, IL. 
Linear image sensors. The S8380 and S8381 NMOS sensors feature high sensitivity in the IR and soft X-ray regions. Operating from 200 to 1000 nm, both have peak sensitivity wavelength of 750 nm and very wide active areas.
Hamamatsu Corp, Bridgewater, NJ. 
Position and velocity sensing. Temposonics R Series Profibus DP sensors now include simultaneous position and velocity sensing capability. Position resolution is down to 5 microns, and velocity resolutions are as low as 0.04 in./sec.
MTS Sensors, Cary, NC.