利用精密扭秤测量微小电量

摘要

充分利用精密扭秤对弱力的高灵敏度，结合机械共振放大力的效应原理、电磁阻尼原理和光杠杆原理进行改装，可测得带电体所受的弱电场力，进而求得微小电量。初步实验结果证实该方法的可行性。%Because of using the high sensitivity of torsion balance for weak force,and using the principle of mechanical resonance, the principle of electromagnetic damping and principle of optical lever, so the weak force of electric field can be measured,thus obtain micro-charge. Preliminary experimental results confirm the feasibility of this method.