Electronics/Test: Wireless Power Meters Help Olympic Athletes

Spotlight Story:

Wireless Power Meters Help
Olympic Athletes
Olympic cyclists are measuring power output with handlebar computers from Garmin, power meters from Quarq, silicon transceivers from Nordic Semiconductor, and communication stacks from Dynastream.
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Light Matters: Removing Heat from a High-Brightness LED (HBLED) SystemIn partnership with Avnet
Ordinary 60W incandescent bulbs only convert about 8% of their input energy into usable light. Most of the remaining energy is conveniently radiated out as infrared (73%) or conducted out through the lamp base (19%). In the case of a visible-spectrum HBLED however, there is negligible IP emission - thus the die's excess heat must be removed by conduction, convection or both. Read More

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Mechanical stress alters the calibration of precision analog ICs. Mounting them incorrectly can make them inaccurate - but don't worry too much. If a thin film of a conductor is attached to sheet of an insulator its resistance will vary as the insulator is flexed. If the conductor is a resistor in a precision IC, stress will affect the circuit's calibration. Read More

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The requirement of low-cost, low-maintenance, robust electrical motors have resulted in the emergence of the AC Induction Motor (ACIM) as the industry leader. Learn how to apply sensorless field-oriented control of induction motors using a dsPIC(R) Digital Signal Controller (DSC) from Microchip Technology. Read More

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exiderdome-a spectacular multimedia traveling expo. Visit exiderdome and experience an array of training and learning events focused on boosting your productivity, reducing costs, and staying competitive, today and tomorrow. Reserve your spot today!

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Wireless Power Meters Help Olympic Athletes
Disney's Integrated Safety Makeover
National to Enter Solar Arena
Feeling the Pressure
Hydrogen: A Classic Chicken or Egg Problem
Gadget Freak Case #123: Cutting Pumpkins the Tesla Way

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Chuck Murray,
Senior Technical Editor

Have you heard of other electronics innovations or technologies being used in Beijing? Email me.


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