| 摘要 |
PROBLEM TO BE SOLVED: To suppress variation in detection accuracy depending on an attachment condition of a piezoelectric sensor to a vibration member, in a vibration detection mechanism for detecting, with the linear piezoelectric sensor, the vibration of the vibration member included in a musical instrument.SOLUTION: In the vibration detection mechanism of a musical instrument, a plurality of linear piezoelectric sensors 40 are disposed inside the same vibration member 31 constituting the musical instrument. The vibration detection mechanism includes: disconnection detecting means for individually detecting a disconnection of the plurality of piezoelectric sensors 40 disposed inside the same vibration member 31; and adjusting means for adjusting the level of a detection signal output from each piezoelectric sensor in response to the detection result of the disconnection detecting means.SELECTED DRAWING: Figure 3 |
