The Application of Lock-in Amplifier in Weak Signal Detection

被引：2
|
作者：
Zhang, Jiatian [1 ]
Liu, Gang [1 ]
机构：
[1] Xian Shiyou Univ, Minist Educ, Key Lab Photoelect Gas & Oil Logging & Detecting, Xian 710065, Shaanxi, Peoples R China
来源：
MEMS, NANO AND SMART SYSTEMS, PTS 1-6 | 2012年 / 403-408卷
关键词：
lock-in amplifier; noise; weak signal detection;
D O I：
10.4028/www.scientific.net/AMR.403-408.2650
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
The paper introduces the lock-in amplifier, the basic concept of weak signal detection, and analyzes its application in weak electric signal detection. The results show that: lock-in amplifier has a very strong resistance to noise. Compared to band-pass filter, the output signal is not amplify input signal, but amplify the AC signal and turn it into DC signal.
引用
收藏
页码：2650 / 2653
页数：4
相关论文
共 50 条
  • [21] INEXPENSIVE LOCK-IN AMPLIFIER
    CAPLAN, LC
    STERN, R
    [J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 1971, 42 (05): : 689 - &
  • [22] A CMOS Double-Demodulation Lock-In Amplifier for Stimulated Raman Scattering Signal Detection
    Mohd, Shukri Bin Korakkottil Kunhi
    Lioe, De Xing
    Yasutomi, Keita
    Kagawa, Keiichiro
    Hashimoto, Mamoru
    Kawahito, Shoji
    [J]. ELECTRONICS, 2023, 12 (01)
  • [23] AN IMPROVED LOCK-IN AMPLIFIER
    COX, HL
    [J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 1953, 24 (04): : 307 - 308
  • [24] Spreadsheet lock-in amplifier
    Wolfson, Richard
    Mullen, Darcy
    [J]. AMERICAN JOURNAL OF PHYSICS, 2010, 78 (11) : 1227 - 1229
  • [25] Significantly enhanced sensor signal detection method using harmonic frequency in lock-in amplifier
    Jeon, Su-Jin
    Kim, Jihoon
    Kim, Eudum
    Kim, Sun-Ho
    Kim, Do-Hyun
    Choi, Young-Wan
    [J]. IEICE ELECTRONICS EXPRESS, 2018, 15 (19):
  • [26] A chaotic lock-in amplifier
    Spears, Brian K.
    Tufillaro, Nicholas B.
    [J]. AMERICAN JOURNAL OF PHYSICS, 2008, 76 (03) : 213 - 217
  • [27] An Integrated Low-Power Lock-In Amplifier and Its Application to Gas Detection
    Maya-Hernandez, Paulina M.
    Alvarez-Simon, Luis C.
    Teresa Sanz-Pascual, Mara
    Calvo-Lopez, Belen
    [J]. SENSORS, 2014, 14 (09): : 15880 - 15899
  • [28] AN IMPROVED LOCK-IN AMPLIFIER
    COX, HL
    [J]. PHYSICAL REVIEW, 1952, 86 (04): : 640 - 640
  • [29] Application of digital lock-in amplifier in nonlinear ultrasonic inspection
    Zhu, Chuanyu
    Ma, Guanbing
    Shen, ShaoBin
    Lei, Yikun
    Huang, Songhua
    [J]. IEEE INTERNATIONAL CONFERENCE ON RECENT ADVANCES IN SYSTEMS SCIENCE AND ENGINEERING (IEEE RASSE 2021), 2021,
  • [30] Oxygen saturation detection aided with the theory of lock-in amplifier
    Liu, Manjin
    Hui, Mei
    Liu, Ming
    Zhao, Yuejin
    Dong, Liquan
    Wu, Hong
    Liu, Xiaohua
    Zhao, Zhu
    Feng, Yun
    Chen, Di
    Yang, Lei
    Zhao, Jingsheng
    [J]. OPTICS AND PHOTONICS FOR INFORMATION PROCESSING VIII, 2014, 9216
12345