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郑含博 (郑含博.) | 张大宁 (张大宁.) | 寇晓适 (寇晓适.) | 李予全 (李予全.) | 邵颖彪 (邵颖彪.) | 杨涛 (杨涛.) | 钱诗林 (钱诗林.)

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incoPat WF

Abstract:

本发明公开了一种用于介电响应测试的微电流测量电路,包括对数运算单元、线性光耦单元、指数运算单元、信号二次放大单元,所述对数运算单元、线性光耦单元、指数运算单元、信号二次放大单元依次相连,所述对数运算单元包括超低偏置电流的放大器和负反馈元件,所述线性光耦单元包括线性光耦芯片、负反馈电路,所述指数运算单元包括高速运放和光敏二极管,本发明的微电流测量电路由于没有采用反馈电阻,避免了电阻温度系数对测量结果的影响,可以具有较高的抑制温度漂移影响的能力,温度系数可达100ppm/C。

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Patent Info :

Type: 发明专利

Patent No.: CN201710444877.3

Filing Date: 2017-06-14

Publication Date: 2017-10-10

Pub. No.: CN107238746A

Applicants: 国网河南省电力公司电力科学研究院;;国家电网公司;;西安交通大学

Legal Status: 在审

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ESI Highly Cited Papers on the List: 0 Unfold All

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30 Days PV: 0

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