Determining specs for unmarked electric motors

[Bretina]

Hello,

This is my first post here and I registered as per my specialty which is marine biology but it seems I'm the only such member. I do however, have an electrical question if it's allowed to cross forums.

We're planning to develop and ocean going autonomous data and specimen collecting submersible robot. I'm in charge of component procurement and I hope to mitigate the high R&D costs by scavenging used components to try out prototypes first.

I've located a source for used electric motors but they are all unmarked except for the occasional voltage stamp. How can the other specs, such as amps, torque, rpm or even voltage be determined on these unmarked electric motors? Is there a machine to connect them to which tells the specs or are there shops that specialize in this? Also, I have a multimeter and a benchtop power source if this is typically done with these tools. If so, how?

Thank you.

Bretina
FL, USA

 

[ozmosis]

Why don't you look for second hand ROV's rather than looking at second hand parts to build one?
E.g:

http://www.silvercrestsubmarines.co.uk/rovsinfo.html

Obviously it depends on your budget and how much you put a cost on time and failure.

 

[Bretina]

Thanks. They may be a good lead for needed components but the subs they seem to specialize in are very different from the direction we're going.

Bretina
FL, USA