| 摘要 |
The invention relates to a device (10) for locating a locally deforming contact on a deformable touch-sensitive surface (18) of an object (14), comprising at least one transmitting transducer (E1, E2) and at least one receiving transducer (R1, R2) designed to respectively transmit and capture elastic mechanical waves propagating in the deformable touch-sensitive surface of the object. The device further comprises an electronic central processing unit (12) connected to the transmitting and receiving transducers (E1, E2, R1, R2) and programmed (26, 28) to detect a frequency offset of at least one normal mode of a resonant vibration of the touch-sensitive surface (18) due to the presence of the locally deforming contact, said vibration being produced by the propagation of the waves transmitted in said touch-sensitive surface, and to locate the locally deforming contact by analyzing said frequency offset. |
