Electric-mechanical devices
Electromechanical components
Here are entered works on electric generators, motors, transducers, sensing instruments, microphones, and similar devices, which convert electrical energy into mechanical energy, or the reverse, and which normally function as components of larger systems, e.g. electric power systems, information systems, control systems, etc.
Electromechanical devices
Mechanical engineering--Equipment and supplies
Electrical engineering--Equipment and supplies