You will most likely need an interface between the computer and the motor. From my experience, which is fairly limited, these brushless motors are either driven with an analog signal or a PWM signal. The voltage input and driving current requirements can be quite different. If you can drive this motor with a analog signal then a multifunction DAQ card would probably work. The current that most DAQ cards can push is very small (around 20 mA max). If you need to drive it with a PWM signal you will need a couter board of some form like a NI 6602. There are also motor controller out there that are easy to use. If you use a DAQ board, the LabVIEW VI you would use would be the NI-DAQ VIs. I would do the following:
1.Spec out the motors that you want to use
(input type and power requirements).
2. Once you nail down your specs give a call to one of the NI Sales people (http://sine.ni.com/apps/we/nicc.call_me?p_action=country&p_lang_id=US). They will be able to tell you what type of offering NI will have to drive this motor.
As far as companies that sell brushless motors. I don't have any opinions. Maybe other in the forum will.
