mechanical factors effecting on the vibration noise and resonance performance of ir detector were analyzed for the method of impact excitation using a hammer.
采用锤击法,利用沖击激励的宽频特性,研究了金属结构红外探测器的共振特性及影响振动噪声的力学因素。
thus, the impact excitation acting on the restoring spring is obtained, and the dynamic characteristic of the ejection system is acquired.
this paper briefly describes the theoretical deduction of the cross section of electron -ion impact excitation in coulomb -born approximation.
本文扼要阐述了在库侖波玻恩近似下,电子与离子碰撞激发截面的理论推导。
the method of impact excitation testing with fast fourier transform (fft) based on spectrum analyzer to determine the dynamic characteristics of a heald frame is introduced.
介绍了通过基于快速傅立叶变换(fft)的谱分析确定综框的动态特性。
modal transient response method is used to get the dynamic characters of helical gear on impact excitation . appropriate reference is provided for optimization of helical transmission system.