| 摘要 |
A sensing apparatus 10 is provided with a signal conduit 12 which has two ends 15. The conduit 12 is operable to create a signal 14 when disturbed between the ends 15, the signal 14 thereafter propagating from the position of the disturbance 16 to each of the ends 15. Further the apparatus 10 has analyser means 18 which is operable to detect the signal 14 as received at each of the ends 15. The analyser means 18 is operable to find the maximal correlation of the signal 14 as received at each of the ends 15, and to determine the position of the disturbance 16 from the maximal correlation. In another aspect, a method is provided for using the apparatus. The signal conduit may include an electrical conductor movable, when disturbed, in a magnetic field to create an electrical signal propagating along the conductor to both ends. |
