超声波体积流量计声场混合计算方法

赵楠楠,胡亮,毛凯,陈文昱,傅新

Hybrid determination method for acoustic field of ultrasonic volumetric flowmeter

Nan-nan ZHAO,Liang HU,Kai MAO,Wen-yu CHEN,Xin FU

表 2 不同体积流量下获得的有效输出电压信号幅度

Tab.2 Effective amplitude of output voltage signal at different flowrates

$ {\bar Q}_{{V}}/\left({\rm{m}}\cdot{{\rm{h}}}^{-1}\right) $ ${V_{{\rm{sp}}}}$ / $ {\rm{V}} $ ${V_{{\rm{\_sp}}}}$ / $ {\rm{V}} $ ${V_{{\rm{sb}}}}$ / $ {\rm{V}} $ ${V_{{\rm{db}}}}$ / $ {\rm{V}} $ 20 1.583 1.581 1.241 1.237 50 1.471 1.414 1.152 1.152 80 1.316 1.247 1.009 1.007 160 0.813 0.776 0.677 0.658 200 0.570 0.532 0.511 0.509