Thursday, July 12, 2007

If you really want to know how radar guns work, you really need to check out the Traffic Radar Handbook: A Comprehensive Guide to Speed Measuring Systems by Donald Sawicki. This all-inclusive book reminds me of my college Physics textbooks, only with more real world application. The Traffic Radar Handbook explains how the radar gun uses the Doppler Principle to determine speed, the differences between several types of speed measuring systems including RADAR and LIDAR, and the Cosine Effect and how it affects the speeds calculated by the radar gun. Anyone in Law Enforcement should really pick up this book along with anyone who just wants to know how these systems work.

Ryan