The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 22, 2007
Filed:
Jul. 23, 2003
Thomas David Paul Allsop, Birmingham, GB;
Timothy Earthrowl-gould, Birmingham, GB;
Ian Bennion, Birmingham, GB;
Thomas David Paul Allsop, Birmingham, GB;
Timothy Earthrowl-Gould, Birmingham, GB;
Ian Bennion, Birmingham, GB;
Aston University, Birmingham, GB;
Abstract
Surface profiling apparatus () according to one embodiment comprises three long period gratings (LPGs) () fabricated in progressive three layered (PTL) fibre (18) and embedded within a deformable carrier member () comprising a skeleton () provided between two sheets of flexible rubber skin (). The LPGs () are illuminated by three wavelength modulated, narrow bandwidth optical signals, each having a different wavelength and modulation frequency. A photodetector () connected to three lock-in amplifiers () measures the amplitudes of the first and second harmonic frequency components of the photodetector output signal corresponding to each LPG (). Similar surface profiling apparatus () forms the basis for respiratory function monitoring apparatus (100) in which five LPGs are provided within each of four PTL fibres (104, 106, 108, 110) and embedded in four carrier members (40) attached to a garment (114) to be worn by a subject.