问题
问答题 简答题
已知:Δtm=142.46μs/m,Δtmf=618.98μs/m,测量时差Δtlog=158.83μs/m,求孔隙度φ?
答案
参考答案:
φ=(Δtlog-Δtma)/(Δtmf-Δtma)
=(158.83-142.46)/(1618.98+142.46)
=16.37/761.44=0.021=2.1%
已知:Δtm=142.46μs/m,Δtmf=618.98μs/m,测量时差Δtlog=158.83μs/m,求孔隙度φ?
参考答案:
φ=(Δtlog-Δtma)/(Δtmf-Δtma)
=(158.83-142.46)/(1618.98+142.46)
=16.37/761.44=0.021=2.1%