A new kind of physics experimental instrument of forced vibration and resonance is introduced, conducting research of the relationship between vibration period and to arms of prong.

• 摘要介绍了新型音叉受迫振动与共振实验仪。通过音叉双臂与振动周期关系的研究，可以深入理解振动式液体密度传感器的原理及其应用。