摘要
基于批量减小小型磁平衡电压传感器温度漂移的目的,利用二极管的V/I特性进行温度补偿,同时引入电源波动抑制技术以降低电源波动对传感器的干扰,采用频率补偿技术以扩展带宽。经过理论分析、温度性能和频率响应试验,得到设计的传感器温漂抑制能力提升50%以上,同时小信号带宽扩展10倍而无失真的结果。研究结果表明,该方案设计的传感器在温漂抑制和频率响应方面都有明显的优化。
This thesis presents a scheme based on temperature compensation, which use the V/I characteristics of diode to reduce temperature drift of small zero flux voltage sensors. At the same time, some special measures are used to reduce the effect of power supply fluctuation, to expand frequency bandwidth. As result, the design of the sensor has obvious optimization in terms of temperature drift suppression and frequency response, through theory analysis, temperature performance test and frequency response test.
作者
曲品
刘志强
刘宗新
周俊
QU Pin LIU Zhi-qiang LIU Zong-xin ZHOU Jun(Ningbo CSR Times Transducer Technique CO. ,LTD, Ningbo 315021, China)
出处
《电子设计工程》
2017年第2期105-109,共5页
Electronic Design Engineering
关键词
磁平衡
霍尔传感器
温度补偿
频率响应
zero flux
hall sensor
temperature compensation
frequency response
