The strength of microwave(MW)electric field can be observed with high precision by using the standard electromagnetically induced transparency and Aulter–Towns(EIT-AT)technique,when its frequency is resonant or nearl...The strength of microwave(MW)electric field can be observed with high precision by using the standard electromagnetically induced transparency and Aulter–Towns(EIT-AT)technique,when its frequency is resonant or nearly-resonant with the Rydberg transition frequency.As the detuning of MW field increases,one of the transmission peaks(single peak)is easier to measure due to its increased amplitude.It can be found that the central symmetry point of the two transmission peaks f_(1/2)is only related to the detuning of MW field△_(MW)and central symmetry point f_(0)of resonant MW field,satisfying the relation f_(1/2)=△_(MW)/2+f_(0).Thus,we demonstrate a single transmission peak method that the MW E-field can be determined by interval between the position of single peak and f_(1/2).We use this method to measure continuous frequencies in a band from-200 MHz to 200 MHz of the MW field.The experimental results and theoretical analysis are presented to describe the effectiveness of this method.For 50 MHz<△_(MW)<200 MHz,this method solves the problem that the AT splitting cannot be measured by using the standard EIT-AT techniques or multiple atomic-level Rydberg atom schemes.展开更多
设计了一个基于低温共烧陶瓷(LTCC)技术的无线无源双参数传感器,传感器基于LC(inductor-Capacitor)谐振原理,询问天线通过无线遥测的方式获取传感器的压力和温度信号。在传感器基板上集成了两个LC谐振回路,谐振回路中两个电容分别对压...设计了一个基于低温共烧陶瓷(LTCC)技术的无线无源双参数传感器,传感器基于LC(inductor-Capacitor)谐振原理,询问天线通过无线遥测的方式获取传感器的压力和温度信号。在传感器基板上集成了两个LC谐振回路,谐振回路中两个电容分别对压力和温度参数敏感,同时两电感采用特殊结构来减少双参数在测试时的互感串扰。搭建了温度-压力复合测试平台,对传感器进行了相关测试。传感器最高测试温度为300℃,温度灵敏度为-14.27 k Hz/℃,压力灵敏-13.75 k Hz/k Pa,实验结果表明,这种设计能明显减少两参数之间的互感影响。展开更多
基金Project supported by the National Key Research and Development Program of China(Grant No.2021YFF0603704)the National Natural Science Foundation of China(Grant No.62071443)。
文摘The strength of microwave(MW)electric field can be observed with high precision by using the standard electromagnetically induced transparency and Aulter–Towns(EIT-AT)technique,when its frequency is resonant or nearly-resonant with the Rydberg transition frequency.As the detuning of MW field increases,one of the transmission peaks(single peak)is easier to measure due to its increased amplitude.It can be found that the central symmetry point of the two transmission peaks f_(1/2)is only related to the detuning of MW field△_(MW)and central symmetry point f_(0)of resonant MW field,satisfying the relation f_(1/2)=△_(MW)/2+f_(0).Thus,we demonstrate a single transmission peak method that the MW E-field can be determined by interval between the position of single peak and f_(1/2).We use this method to measure continuous frequencies in a band from-200 MHz to 200 MHz of the MW field.The experimental results and theoretical analysis are presented to describe the effectiveness of this method.For 50 MHz<△_(MW)<200 MHz,this method solves the problem that the AT splitting cannot be measured by using the standard EIT-AT techniques or multiple atomic-level Rydberg atom schemes.
文摘设计了一个基于低温共烧陶瓷(LTCC)技术的无线无源双参数传感器,传感器基于LC(inductor-Capacitor)谐振原理,询问天线通过无线遥测的方式获取传感器的压力和温度信号。在传感器基板上集成了两个LC谐振回路,谐振回路中两个电容分别对压力和温度参数敏感,同时两电感采用特殊结构来减少双参数在测试时的互感串扰。搭建了温度-压力复合测试平台,对传感器进行了相关测试。传感器最高测试温度为300℃,温度灵敏度为-14.27 k Hz/℃,压力灵敏-13.75 k Hz/k Pa,实验结果表明,这种设计能明显减少两参数之间的互感影响。
