发明名称 MULTI-GAP INTERFEROMETRIC SENSORS
摘要 An apparatus for estimating a property includes a hollow core tube and an input light guide disposed at least partially within hollow core tube. The apparatus also includes a second gap disposed within the hollow core tube and separated from the input light guide by an air gap width. The second gap is formed of a first solid material and has a second gap width. The apparatus also includes a third gap disposed at least partially within the hollow core tube and being further from the input light guide than the second gap. The third gap is formed of a second solid material and has a third gap width.
申请公布号 CA2798018(C) 申请公布日期 2016.05.31
申请号 CA20112798018 申请日期 2011.04.06
申请人 BAKER HUGHES INCORPORATED 发明人 CHILDERS, BROOKS A.;HARMAN, ROBERT M.;HOMA, DANIEL S.;BECKNER, LANCE A.
分类号 E21B47/06;E21B47/12;G01K11/32;G01V8/16 主分类号 E21B47/06
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