| 摘要 |
<p>The invention relates to a ferrofluidic vibration transducer, meant for measuring vibration parameters. According to the invention, the transducer comprises a non-metallic cylindrical tube (1) closed at both ends by two non-magnetic plugs (2), a magnetic piston being elastically located inside the tube, said piston being made of a permanent magnet (3) and a ferrofluidic sleeve (4) so that the vibration to which the device is subjected generates induced electromotive voltages, proportional to the vibration speed in the two identical cross-sections of a coil (5) fixed on the tube, namely differential variations in inductance of both coil cross-sections proportional to the displacement or elongation of the vibration.</p> |
