%0 Journal Article
%T Design of a Fiber-optic Sensor for Monitoring Duodenogastric Reflux<br>一种检测十二指肠胃返流光纤传感器的研制
%A Abstract
%A <br>陈国平
%A 姜志茹
%A 夏荣民
%A 寿文德
%A 龚均
%J 光子学报
%D 2004
%I 
%X A fiber-optic sensor for monitoring of duodenogastric reflux is fabricated. The sensing system, based on the principle of double-beam compensation, includes two diodes for light sources, blue at 470 nm as signal light and yellow at the wavelength of 595 nm as reference one, and a Y model fiber optic bundle for transmitting light. The sensor performs on detection of spectrophotometric absorption of bilirubin always present in entero-gastric reflux at 470 nm and 595 nm. A general evaluation of the sensor about factors affecting its detection is discussed in detail: Wavelength choice, pH, scattering effect resulting from gastric precipitates and others. The sensor shows a good excellent performance with a dynamic linear range of up to 10 mg/dl. The in-vitro experiment shows it can be used in clinical analysis of DGR.
%K Fiber optic sensor
%K Bilirubin
%K Duodenogastric reflux (DGR)<br>光纤传感器
%K 胆红素
%K 十二指肠胃返流（DGR）
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=9F6139E34DAA109F9C104697BF49FC39&aid=7A64905B51F4D4E6&yid=D0E58B75BFD8E51C&vid=27746BCEEE58E9DC&iid=CA4FD0336C81A37A&sid=4AD960B5AD2D111A&eid=339D79302DF62549&journal_id=1004-4213&journal_name=光子学报&referenced_num=2&reference_num=9