传感器放大电路零点漂移抑制技术研究及优化设计

In the field of automated detection and industrial control, the zero-drift problem in sensor amplifier circuits seriously restricts the accuracy of signal measurement. Aiming at environmental interference factors such as temperature fluctuations and unstable power supplies, this paper systematically analyzes the generation mechanism of zero drift and proposes multi-level suppression strategies from component selection, circuit architecture to feedback control. Combined with engineering practices, this paper focuses on innovative circuit design schemes such as DC level adjustment based on dynamic feedback and automatic zeroing via signal pre-sampling compensation. The effectiveness of these schemes is verified through parameter calculation and performance comparison, providing technical references for the engineering application of high-precision sensing systems.