Title :
Chirped fiber optic Bragg grating esophageal pressure sensor
Author :
Swart, P.L. ; Lacquet, B.M. ; Chtcherbakov, A.A.
Author_Institution :
Dept. of Electr. & Electron. Eng., Rand Afrikaans Univ., Auckland Park, South Africa
Abstract :
We propose a chirped fiber Bragg grating sensor for measuring pressures along the length of the esophagus. Existing esophageal manometers are bulky and very uncomfortable for the patient. The new sensor uses the time-dependent group delay response of a chirped fiber Bragg grating. In contrast to existing transducers that only measure at discrete points, the output of the new device is a continuous function of length along the esophagus.
Keywords :
Bragg gratings; biomedical measurement; biomedical transducers; fibre optic sensors; patient diagnosis; pressure sensors; chirped fiber Bragg grating sensor; esophageal contractile activity; esophageal pressure sensor; esophagus pressure waves; time-dependent group delay response; Bragg gratings; Chirp; Delay; Esophagus; Fiber gratings; Length measurement; Optical fiber sensors; Optical fibers; Optical sensors; Transducers;
Conference_Titel :
Optical Fiber Sensors Conference Technical Digest, 2002. Ofs 2002, 15th
Conference_Location :
Portland, OR, USA
Print_ISBN :
0-7803-7289-1
DOI :
10.1109/OFS.2002.1000545
