For the meter which has liquate inner, can work in strong vibration or pressure pulse situation.

对于在外壳充液仪表，能够抗工作环境振动较强和减少介质压力脉动影响。

The damping effect is also affected by pump pressure, volume of air chamber and the prefill pressure in chamber.

改变泵压、容积和充压力等参数,对排出液体脉动衰减有较大影响。

Fluid is conveied to bit nozzel through drill string from pump is a transient state flowing with pressure wave, which makes the fluid jetted out from nozzel has certain pulsation.

从井泵经过部输送到头喷嘴流体是一种瞬态流动，存在着压力行波，使从普通喷嘴射出流体有一定程度脉动。