| 摘要 |
A holder 3 is arranged so as to fix a sensor to the frame of an acoustic drum, with which sensor an electrical signal is to be obtained from the wave movements which arise when the skin of the drum is struck. The sensor comprises a vibration-sensitive body 8 arranged to be pressed elastically against the skin of the drum so as to sense those of its wave movements which have essentially a predetermined direction and lie within a predetermined wavelength range. The holder has a roof-shaped member 11 with a surface which is plane-parallel to the drum skin and bears an elastically resilient member 12, 13 for the vibration-sensitive body. A hook grip 4 is formed by the roof-shaped member together with an angled leg 17 of the holder. <IMAGE> |
