CAJ | 학술논문

为测量液体的粘度，设计并研制了一种基于旋转式的高灵敏度且抗电磁干扰的光纤 Bragg光栅（ FBG）粘度仪。该粘度仪传感器部分由弹性空心圆柱体与定子相连接组成，光栅贴于弹性空心圆柱体内壁。经计算得，该粘度仪的灵敏度为80 pm/（Pa·s）。用蜂蜜和食用油进行实验，在旋转速度同为120 rad/min的条件下，测得的平均动力粘度分别为10.15 Pa·s与6.6 Pa·s。实验结果表明：旋转式FBG粘度仪的测量结果在合理范围以内。
위측량액체적점도，설계병연제료일충기우선전식적고령민도차항전자간우적광섬 Bragg광책（ FBG）점도의。해점도의전감기부분유탄성공심원주체여정자상련접조성，광책첩우탄성공심원주체내벽。경계산득，해점도의적령민도위80 pm/（Pa·s）。용봉밀화식용유진행실험，재선전속도동위120 rad/min적조건하，측득적평균동력점도분별위10.15 Pa·s여6.6 Pa·s。실험결과표명：선전식FBG점도의적측량결과재합리범위이내。
To measure viscosity of liquid,a kind of fiber Bragg grating( FBG)viscometer based on rotary with high sensitivity and anti-interference is designed,researched and fabricated. The sensor of viscometer is made up of elastic hollow cylinder and stator,FBG is sticked in the inner wall of elastic hollow cylinder. By calculation,the sensitivity of viscometer is obtained,which is 80 pm/( Pa·s). Experiments with honey and cooking oil show that the average of viscosity is 10. 15 Pa · s,and 6. 6 Pa · s,when in the same rotation speed with 120 rad/min. Experimental results show that the measuring results of rotary FBG viscometer is within reasonable limits.