| 摘要 |
<p>A dental handpiece (100) comprises: a casing (1); a chuck (2) positioned at a first end of the casing (1) providing a quick-release connection to a tool; a tool drive unit (3) located inside the casing (1) and an end element (4) having at least one cable (5) for powering the drive unit (3) and located at the other end of the casing (1). The drive unit (3) is a brushless micromotor equipped, inside the casing (1), with a control unit (6) comprising a plurality of Hall effect sensors (7). <IMAGE></p> |
