Please tell me the natural frequency of the shaker when in "suspension mode"
(i.e. when the table and coil move together relative to the shaker body) and
the values of resistance and inductance for the armature coil.
译文:请告诉我振动台在悬挂模式的正常频率(举例,当台面和线圈一起相对台体共同运动时),动圈阻抗的值和感应系数各是多少?