In-plane Ultrasonic Velocity Measurement

dc.contributor.patentcreator Hall, Maclin S.
dc.contributor.patentcreator Jackson, Theodore G.
dc.contributor.patentcreator Knerr, Christopher
dc.date.accessioned 2017-05-12T14:27:15Z
dc.date.available 2017-05-12T14:27:15Z
dc.date.filed 3/6/1995
dc.date.issued 6/11/1996
dc.description.abstract An improved system for measuring the velocity of ultrasonic signals within the plane of moving web-like materials, such as paper, paperboard and the like. In addition to velocity measurements of ultrasonic signals in the plane of the web in the MD and CD, one embodiment of the system in accordance with the present invention is also adapted to provide on-line indication of the polar specific stiffness of the moving web. In another embodiment of the invention, the velocity of ultrasonic signals in the plane of the web are measured by way of a plurality of ultrasonic transducers carried by synchronously driven wheels or cylinders, thus eliminating undue transducer wear due to any speed differences between the transducers and the web. In order to provide relatively constant contact force between the transducers and the webs, the transducers are mounted in a sensor housings which include a spring for biasing the transducer radially outwardly. The sensor housings are adapted to be easily and conveniently mounted to the carrier to provide a relatively constant contact force between the transducers and the moving web.
dc.description.assignee Institute Of Paper Science And Technology, Inc.
dc.identifier.cpc G01H5/00
dc.identifier.cpc G01N29/2493
dc.identifier.cpc G01N33/346
dc.identifier.patentapplicationnumber 08/398926
dc.identifier.patentnumber 5525854
dc.identifier.uri http://hdl.handle.net/1853/57217
dc.identifier.uspc 310/334
dc.title In-plane Ultrasonic Velocity Measurement
dc.type Text
dc.type.genre Patent
dspace.entity.type Publication
local.contributor.corporatename Georgia Institute of Technology
local.relation.ispartofseries Georgia Tech Patents
relation.isOrgUnitOfPublication cc30e153-7a64-4ae2-9b1d-5436686785e3
relation.isSeriesOfPublication 0f49c79d-4efb-4bd9-b060-5c7f9191b9da
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