The wave form and the spectrum of impact force as well as the variation in soundexposurelevel (SEL) at a fixed point were measured which representing the relative changes of the ringing noise.
对一些板和梁进行了撞击试验,测量了撞击力随时间变化的波形及其频谱。
2
Conclusion Recording soundlevel meter can be well used to measure and assess noise exposure in complicate working environment.
结论个体噪声暴露测量可以较好地解决现场复杂情况下的噪声暴露评价问题。
3
"Risk for hearing damage depends on soundlevel and exposure time, " a statemant said.