| 摘要 |
A digital vibration transducer for producing a digital signal representative of a vibration of a vibrating member is provided. The transducer includes a laser source (12) producing a light beam (20) that is focused on a detection area. The light beam is reflected towards this detection area by a reflector (10), at an angle with the optical axis of the light beam and pivotable about a pivot axis. A linkage assembly (16,17) connects the vibrating member (50) to the reflector to convert the vibrating of the vibration member into a pivoting of the reflector, thereby sweeping the reflected light beam across the detection area. A sensing and encoding assembly (18,19) is provided in the detection area and produces the digital signal representative of the vibration of the vibrating member relatively to the sweeping of the light beam.
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