【摘要】 将弹簧作为电感线圈,与取样电阻构成RL串联电路.在正弦交流信号激励下,用数字示波器测量取样电压与作用力的关系,从而测得液体的表面张力系数.更多还原

【Abstract】 A spring as an inductance turn and a sampling resistance are made up of a RL series circuit.Under the prompting of alternating current,the relation of the acting force and the sampling voltage is measured with a digital oscilloscope,thus the liquid surface tension coefficient is obtained.更多还原