Zaber's T-NA series products are computer controlled linear actuators with 50nm resolution and up to 50 mm travel. They are stand alone units requiring only a standard 15V power supply. Multiple units can be daisy-chained to the RS-232 port of any computer, or via standard USB-to-serial adaptors. They can also be daisy-chained with any other T-Series products. Convenient 6-pin mini din cables on the unit allow for direct interconnection between units in close proximity. For longer distances, standard cable extension can be used. Even the power is daisy-chainned, reducing the cabling necessary for large systems.
To control actuator position, simply transmit the unit number of the actuator you want to move, a simple move command and the position desired. After the move, the actuator will report its position back to the computer. For a detailed list of available commands see the T-NA User's Manual .
An optional manual control knob at the end of the unit permits smooth manual control. During a manual move the actuator constantly transmits its position so the controlling computer can track it. An industry standard 3/8" micrometer shank with 3/8-32 thread allows the T-NA to fit many popular stages. The shaft of the T-NA unit does not rotate. No torque is transmitted to the translation stage, ensuring precise motion of the payload.
If you have a motion control application, what thrust would be satisfactory?