vibration-frequency measurement

基本解释

So the ultra-low frequency absolute vibration detection is a difficult problem in engineering measurement field.
因此超低频绝对振动检测一直是工程测试领域的一大难题。
The low frequency, weak mechanical vibration experiments show that detection system can realize the non-contact measurement.
微弱机械振动信号的探测结果表明，该系统能实现无接触测量。
Described in this paper is a newly developed portable computer-based vibration frequency measurement system for turbine blades.
采用以便携式计算机为核心的新型汽轮机叶片频率测量系统可大大提高测量的精确度和工作效率。