平面簧片是电磁驱动式M(?)ssbauer谱仪振动子的关键部件。振动子的静态特性研究表明,平面簧片的内应力和重力载荷量对其挠度线性的影响明显。平面簧片制作成形前后二次热处理,采用高压直流脉冲闭合磁路内充磁方法,提高极间场强和减少重力载荷量,可以提高振动子静态挠度的线性。整个振动子可以视为一个简谐振子。其自由振荡频率的计算与实验结果相符,同时本文对于平面簧片所承受的重力载荷量对特定驱动波形的影响作了探讨。 Plane reeds are the key components of the electromagnetically driven M (?) Ssbauer spectrometer vibrator. The static characteristics of the vibrator shows that the internal stress and the gravity load of the planar reed have an obvious influence on the deflection linearity. The planar reed is fabricated before and after the secondary heat treatment. The high-voltage direct current pulse closed magnetic circuit magnetization method is used to improve the inter-field strength and reduce the gravity load, which can improve the linearity of the static deflection of the vibrator. The entire vibrator can be regarded as a harmonic oscillator. The calculation of free oscillation frequency is consistent with the experimental results. In the meantime, the influence of the gravity load on the plane reeds on the specific driving waveform is discussed.