MOTOR TEST LAB -PART 1

摘要

Being an amateur roboticist, I am always looking for parts of varying kinds from which to build robots and, since most of the bots I like to construct are mobile, one of the major requirements are brushed DC motors. You can find brushed DC motors just about everywhere; new on the Internet, on eBay, on Internet sites which sell surplus components, and possibly at your local walk-in surplus store. The thing is, unless you buy it new - which can be expensive - you have no real idea about the capability of the motor. For example, how do you know what the 'stall' current is so you can use an H-bridge of the right size, or how do you know what the max RPM is etc., things which can make or break your bot.