Appliance Design - February 2008 - (Page 18) CONTROLS & SENSORS This touch control system features a wheel slider and seven independent keys. A touch-control board featuring a 10-key touch sensor. While QTouch has been a company staple for years, today Quantum offers even more advanced technology such as the QSlide™ and QWheel™. These products, which are based on the QTouch technology, are touch sensors designed to replace conventional resistive linear sliders or rotary controls. QSlide works with a linear resistive element that can consist of discrete resistors connected in series, a resistive thick-film layer, or an optically-clear indium tin oxide film for use over LCDs. Dedicated algorithms are used to determine the touch position independent of signal strength. For QWheel the electrode consists of a simple resistive ring element that can be placed behind any dielectric panel. Three capacitive QTouch channels are connected to this ring, The company’s newest and most sophis- ticated technology is called QMatrix™. This technology is designed to detect touch using a scanned, passive matrix of electrode sets. It can power a large number of touch keys driven by a single chip. QMatrix circuits offer excellent signal-to-noise ratios, high levels of immunity to moisture films, extreme levels of temperature stability, superb low power characteristics, ease of wiring, and small IC package sizes for a Your One Global Source for Innovation A. O. Smith is pleased to introduce the patented PAX Fan. The PAX Fan is uniquely designed to model the efciency of uid ow in nature. When attached to an A. O. Smith motor, the resulting system is more efcient and quieter than traditional motor and fan combinations. A. O. Smith also provides next level features such as mounting bracket and wiring harnesses to increase efciency on the assembly lines. Take advantage of the latest innovations in air-moving technology to reduce evaporator and condenser fan power consumption and noise. Contact A. O. Smith to learn more about how we can reduce power consumption, noise and assembly costs in your refrigeration system. www.aosmithmotors.com 531 N. Fourth St. • Tipp City, OH 45371 • Tel: (937) 667-2431 • Fax: (937) 667-5030 For more Information Enter 105 AD10074AOS.indd 1 18 applianceDESIGN February 2008 7/24/07 12:03:15 PM www.applianceDESIGN.com http://www.aosmithmotors.com http://www.aosmithmotors.com http://www.appliancedesign.com
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