Cong Yu, Jiahong Zhang, Zhengang Zhao, Yingna Li, Chuan Li. Modeling and Analysis of Double-Ring Lever Type GMM-FBG Current Sensor[J]. Laser & Optoelectronics Progress, 2021, 58(17): 1706004
- Laser & Optoelectronics Progress
- Vol. 58, Issue 17, 1706004 (2021)
Fig. 1. Structure of double-ring lever type GMM-FBG current sensor
Fig. 2. Model structure of the coil in different positions. (a) Model 1; (b) model 2
Fig. 3. Geometric modeling. (a) Overall model; (b) partial model
Fig. 4. Relationship between the distance between silicon steel sheets and Δε
Fig. 5. Relationship between L and Δε of the FBG
Fig. 6. Magnetic field distribution of silicon steel sheet. (a) Upper ring magnetic field; (b) lower ring magnetic field
Fig. 7. Strain field distribution along the y axis. (a) Upper ring; (b) lower ring
Fig. 8. Relationship between measured current I and Δε
Fig. 9. Temperature distribution map. (a) 20 ℃; (b) 70 ℃
Fig. 10. Relationship between temperature on FBG and ambient temperature
Fig. 11. Temperature difference between FBG1 and FBG2
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