Title :
Design and construction of a high-speed high-performance direct-drive handpiece
Author :
Hesmondhalgh, D.E. ; Tipping, D. ; Amrani, M.
Author_Institution :
University of Manchester, Department of Electronic and Electrical Engineering, Manchester, UK
fDate :
11/1/1987 12:00:00 AM
Abstract :
The electrical and mechanical design of a precision handpiece (or handtool) delivering 10 W at 150 000 rev/min is described. The 2-pole synchronous drive motor has a samarium-cobalt rotor magnet of axial length 7 mm and diameter 3 mm. The motor has mumetal laminations and a bar winding which is supplied at 2.5 kHz by three toroidal transformers built into the unit. An equivalent circuit and experimental data are given from a prototype constructed according to the design procedure.
Keywords :
electric drives; hand tools; permanent magnet motors; small electric machines; synchronous motors; 10 W; 150000 rev/min; 2.5 kHz; SmCo5 rotor magnet; bar winding; electrical design; equivalent circuit; handtool; high-speed high-performance direct-drive handpiece; mechanical design; mumetal laminations; precision handpiece; synchronous drive motor; toroidal transformers;
Journal_Title :
Electric Power Applications, IEE Proceedings B
DOI :
10.1049/ip-b:19870046
