| 摘要 |
A system of tracing a position and an orientation of a probe (10), comprising three sensors (16,18,20) each for detecting a different component of a vector force field, each of said three sensors (16,18,20) including two sensor elements (16a,16b,18a,18b,20a,20b) disposed symmetrically about a common reference point (22) in the probe (10), said three sensors (16,18,20) being mounted inside the probe (10), wherein each of said sensor elements (16a,16b,18a,18b,20a,20b) exclusively consists of a coil of wire wound on a respective air-core, and wherein said sensor elements (16a,16b,18a,18b,20a,20b) of said three sensors (16,18,20) are disposed colinearly along a longitudinal axis (12) of the probe (10), wherein the coils of two sensor elements (16,16a,18,18a) are both oriented perpendicular to the longitudinal axis and are also longitudinally spaced apart and the coils (20a,20b) of the third sensor element (20) are oriented parallel to said longitudinal axis (12). |
