释义 |
vibrating-reed tachometer vibrating-reed tachometer[′vī‚brād·iŋ ¦rēd tə′käm·əd·ər] (engineering) A tachometer consisting of a group of reeds of different lengths, each having a specific natural frequency of vibration; observation of the vibrating reed when in contact with a moving mechanical device indicates the frequency of vibration for the device. |