Tuesday, March 13, 2007

Single Accelerometer Enhances Pedometer Performance

A single 2- or 3-axis accelerometer can be used to make a simple but relatively accurate pedometer for cost-sensitive applications such as cellular handsets. This note presents an improved algorithm that provides accurate results while running or walking.

Open a Dialogue
Question the authors.
Share information with your colleagues.
Leave feedback for the editors.
What did you think of this article?
Was it useful, timely, well written?
Would you like to see more articles on this topic?

High-Speed Time-Domain Measurements—Practical Tips for Improvement

Making accurate high-speed time domain measurements can be challenging, but a few tips and tricks, coupled with some good old-fashioned commonsense engineering, can help yield quick and accurate results. When choosing a scope and probe for high-speed measurement, first consider: signal amplitude, source impedance, rise time, and bandwidth. The type of probe and length of the ground lead are also important.

Open a Dialogue
Question the authors.
Share information with your colleagues.
Leave feedback for the editors.
What did you think of this article?
Was it useful, timely, well written?
Would you like to see more articles on this topic?