TY - GEN
T1 - Design and Comparison of Two Lock-In Amplifiers Using Demodulators AD630 and ADA2200
AU - Liang, Te
AU - Bai, Xu
AU - Suo, Peng
AU - Tian, Wenbin
AU - Sun, Jiangtao
AU - Xu, Lijun
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - Lock-in amplification is an effective technique to improve the signal-to-noise ratio (SNR) in the presence of overwhelming noise. Two lock-in amplifiers (LIAs) are designed using demodulators AD630 and ADA2200 respectively, with their performances compared. The LIAs can be implemented on a surface mounted PCB, including additional signal processing circuits, which have many advantages such as portability, versatility and small size. In order to improve the performances of LIAs, the influence of LIAs on the performance is analyzed in detail from the characteristics of different parameters such as reference signal, effective bandwidth, filter performance and linearity. Both theoretical analysis and experiments are carried out to validate the designed prototype of LIAs, and the advantages and disadvantages of LIAs based on AD630 and ADA2200 are compared.
AB - Lock-in amplification is an effective technique to improve the signal-to-noise ratio (SNR) in the presence of overwhelming noise. Two lock-in amplifiers (LIAs) are designed using demodulators AD630 and ADA2200 respectively, with their performances compared. The LIAs can be implemented on a surface mounted PCB, including additional signal processing circuits, which have many advantages such as portability, versatility and small size. In order to improve the performances of LIAs, the influence of LIAs on the performance is analyzed in detail from the characteristics of different parameters such as reference signal, effective bandwidth, filter performance and linearity. Both theoretical analysis and experiments are carried out to validate the designed prototype of LIAs, and the advantages and disadvantages of LIAs based on AD630 and ADA2200 are compared.
KW - demodulators
KW - lock-in amplifier (LIA)
KW - portability
KW - signal-to-noise ratios (SNR)
UR - https://www.scopus.com/pages/publications/85166379252
U2 - 10.1109/I2MTC53148.2023.10175980
DO - 10.1109/I2MTC53148.2023.10175980
M3 - 会议稿件
AN - SCOPUS:85166379252
T3 - Conference Record - IEEE Instrumentation and Measurement Technology Conference
BT - I2MTC 2023 - 2023 IEEE International Instrumentation and Measurement Technology Conference
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 IEEE International Instrumentation and Measurement Technology Conference, I2MTC 2023
Y2 - 22 May 2023 through 25 May 2023
ER -