基于双D光纤传感器的陶瓷泥浆浓度仪的设计-传感技术学报.PDF

第 22 卷 　第 6 期 传 感 技 术 学 报 Vol . 22 　N o . 6 2009 年 6 月 CHIN ES E J OU RNAL O F S EN SORS AND AC TUA TORS J u n . 2009 Design of Ceramic Mud Concentration Detector Based on DoubleD Optical Fiber Sensor M A L i x i u ( ) S chool of Elect rical an d E lect rical Eng i neeri ng , S han dong Uni vers i ty of Technology , Zibo s han dong 255049 , Chi na Abstract :To overco me t he backwar d t echnolo gy and low efficiency of ceramic mud concent ration mea sure , t he aut hor develop ed a new t yp e det ector . Ba sed on t he Mie Scat t ering t heory , if incident wavelen gt h , inci dent int en sit y , det ection di st ance ,p article size , ref ractive in dex an d back scat t ering angle are all know n , in t en sit y of back scat t ering light i s p roportional to t he concent ratio n of p article . In t he exp eriment , one of t he la ser op tical fiber irradiat e s ceramic mud t hrough a doubleD op tical fiber sen sor , t he ot her receive s t he back scat t erin g la ser light w hich goe s t hrough t he ceramic mud . The ceramic mud of concent ration of 40 % 60 % are mea sured , t he mea sured volt age and it s cor re spon ding ceramic mu d ’s ar gil cont ent relation ship wa s analyzed , it i s linear for ceramic mu d of concent ration bet ween 40 %60 %. Ceramic mu d concent ration det ector i s de signed ba sed on re sult of st u dy and t he det ailed de scrip tion of st r uct ure and charact eri stic s a bo ut ceramic mud concent ratio n det ector i s given . Key words :det ecting in st rument ; concent ration of ceramic mu d ; back scat t ering ;Mie ;doubleD