| 摘要 |
The device has a slab matrix comprising two conducting lines (LI, LI+1) and two conducting columns (CI, CJ). An electronic unit analyzes reception voltages (Vout) output from the lines and the columns. Two supports are respectively located at two crossings of the two lines and the two columns, respectively. A first analysis unit locates hollows of the voltages for two frequencies (Fmin, Fmax), respectively. A second analysis unit calculates barycenters of the hollows. A third analysis unit determines the two lines and the two columns respectively at the two supports from the barycenters. |
