Thread: 2006 Motor Specs
View Single Post
  #16   Spotlight this post!  
Unread 09-01-2006, 09:34
Schmitty!'s Avatar
Schmitty! Schmitty! is offline
Ever issue is an opportunity to...
AKA: Mike Schmitt
FRC #0093 (N.E.W. Apple Corps)
Team Role: Mentor
  
Join Date: Jan 2006
Rookie Year: 2003
Location: Appleton WI
Posts: 7
Schmitty! is a splendid one to beholdSchmitty! is a splendid one to beholdSchmitty! is a splendid one to beholdSchmitty! is a splendid one to beholdSchmitty! is a splendid one to beholdSchmitty! is a splendid one to behold
Re: 2006 Motor Specs
I measured the no-load speed and current of several of the motors we received in the 2006 KOP with an optical tachometer and Fluke DMM. I got the following results:
Small CIM #1 +12.00V: 5370 RPM 2.06Amps
Small CIM #1 -12.00V: 5412 RPM 2.00Amps

Small CIM #2 +12.00V: 5209 RPM 2.00Amps
Small CIM #2 -12.00V: 5374 RPM 2.13Amps

Large CIM #1 +12.00V: 2665 RPM 0.700Amps
Large CIM #1 -12.00V: 2738 RPM 0.790Amps

Large CIM #2 +12.00V: 2752 RPM 0.802Amps
Large CIM #2 -12.00V: 2686 RPM 0.690Amps

Fisher-Price #1 (without gearbox) +12.00V: 16224 RPM 1.06Amps
Fisher-Price #1 (without gearbox) -12.00V: 16579 RPM 1.03Amps

I am planning on grabbing the remaining no-load measurements tonight. So far the measurements I've taken fall in line with what I expected based on the datasheet values. I'm very happy to see that the Fisher-Price motor is a 12V motor!

Does anybody have a dynomometer test stand that can be used to capture the torque data? I can set up a test at stall to capture the stalled torque constant, but from previous experience it is more accurate to capture the torque constant while the motor is spinning under a known load. I don't have access to a dyno at my current job.