The Analysis of the Negative Feedback Circuit in the Induction Sensors

2019 International Conference on Intelligent Manufacturing and Intelligent Materials

Lin, Pengfei^1 ; Lin, Chunsheng^1 ; Wu, Xingya^2 ; Zhang, Ning^1

College of Weaponry Engineering, Naval University of Engineering, Wuhan

430033, China^1

91278 Unit, Lvshunkou in DaLian

116000, China^2

关键词: Analysis method;    Damping ratio;    Feedback circuits;    Feedback resistance;    Feedback resistors;    Induction sensors;    Mutual inductance;    Second-order systemss;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/565/1/012012/pdf
DOI  :  10.1088/1757-899X/565/1/012012

来源: IOP

【 摘 要 】

In this paper, the analysis method of the step response of the second-order system under different damping is applied to the feedback circuit analysis in the sensors. It analyzes the influence of different feedback resistors and mutual inductances on the system stability and pass band, which provides a theoretical basis for the matching of feedback resistors and mutual inductances in the circuit. It is of great significance to improve the performance of the sensor. when the parameters of the induction sensor are determined, the system performance can be more stable by designing appropriate mutual inductance and feedback resistance to make the damping ratio close to 0.8. Finally, we designed the feedback resistor Rf = 400 Ω, and the mutual inductance M = 1 to make sure damping ratio ζ be around 0.8 in the selected sensors.