Interferometric signal conditioner for measurement

专利名称：Interferometric signal conditioner for

measurement of the absolute length ofgaps in a fiber optic Fabry-Perotinterferometer

发明人：Larry A. Jeffers,John W. Berthold,Richard L.

Lopushansky

申请号：US11106750申请日：20050415公开号：US07355684B2公开日：20080408

专利附图：

摘要：A method and apparatus for quantitatively measuring the distance of anunknown variable gap is disclosed. Light is provided to two Fabry-Perot interferometersarranged in a series, one spanning the unknown gap and the other spanning acontrollably variable gap. Means for verifying the positioning of the Fabry-Perotinterferometer having the controllably variable gap work in conjunction with a signalprocessor, a correlation burst signal detector and means for conveying the light to thevarious system elements to perform a comparison of detector signals from the twointerferometers and quantitatively establish the gap distance. The invention may also bevaried to function on a time basis, include more than one source of light, possess filtermeans to distinguish between light sources and/or include one or more referenceinterferometers.

申请人：Larry A. Jeffers,John W. Berthold,Richard L. Lopushansky

地址：Minerva OH US,Salem OH US,The Woodlands TX US

国籍：US,US,US

代理机构：McDonald Hopkins, LLC

代理人：Risto Pribisich

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