Circuit Cellar Issue 231 October 2009-PDF

Issue #231
October 2009
Theme: Data Acquisition

TASK MANAGER—Signal Significance, by C. J. Abate, p. 4
NEW PRODUCT NEWS—edited by John Gorsky, p. 8
CROSSWORD—p. 74
IR Signal Control, by Naubert Aparicio, p. 12
Digitally Controlled Amplifier: Connect Vintage Analog to Modern digital Tech, by George Anderson, p. 38
INTELLIGENT ENERGY SOLUTIONS—Frequency Sensing Made Simple: Power Grid Frequency Monitoring Design, by Arnold Stadin, p. 22
ABOVE THE GROUND PLANE—Capacitor ESR Measurement, by Ed Nisley, p. 28
THE DARKER SIDE—Multirate Techniques and CIC Filters, by Robert Lacoste, p. 50
FROM THE BENCH—Airflow Analysis, by Jeff Bachiochi, p. 60
SILICON UPDATE—Thumbs Up: The ARM Saga Continues, by Tom Cantrell, p. 66
PRIORITY INTERRUPT—A Broadening Experience, by Steve Ciarcia, p. 80
BONUS FEATURE ARTICLE—Arduino-Based Temperature Display, by Mahesh Venkitachalam
BONUS FEATURE ARTICLE—Buddy Memory Manager, by Sitti Amarittapark