Simple small-sized lock-in light detection system using a gated Si avalanche photodiode

2001 ◽  
Author(s):  
Tsuyosh Miyata ◽  
Tetsuo Iwata ◽  
Tsutomu Araki
Keyword(s):  
Detection System ◽  
Avalanche Photodiode ◽  
Light Detection ◽  
Lock In

Pseudo-Lock-in Light Detection Method for a Sinusoidally-Gain-Modulated Photomultiplier Tube

2004 ◽  
Vol 11 (1) ◽  
pp. 19-23 ◽  
Author(s):  
Tetsuo Iwata ◽  
Takafumi Inoue ◽  
Tsutomu Araki
Keyword(s):  
Detection Method ◽  
Photomultiplier Tube ◽  
Light Detection ◽  
Lock In

Weak Signal Detection System Based on Lock-in Amplifier Technology

2013 ◽  
Vol 389 ◽  
pp. 489-493
Author(s):  
Yong Lv ◽  
Chun Hui Niu ◽  
Yue Qiang Li ◽  
Qing Shan Chen ◽  
Xiao Ying Li ◽  
...  
Keyword(s):  
Signal Detection ◽  
Detection System ◽  
Signal To Noise Ratio ◽  
Weak Signal ◽  
Weak Signal Detection ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Low Pass ◽  
Phase Sensitive ◽  
Lock In

In order to detect the weak signal deeply buried in the noise, a weak signal detection system based on lock-in amplifier is proposed. The system includes the preamplifier circuit, active low pass filter circuit, AC amplifying circuit and phase sensitive demodulation circuit. Test results show that it can greatly increase the signal-to-noise ratio (SNR) up to 12.7db.

scholarly journals An FPGA-based lock-in detection system to enable Chemical Species Tomography using TDLAS

2015 ◽  
Author(s):  
Andrea Chighine ◽  
Edward Fisher ◽  
David Wilson ◽  
Michael Lengden ◽  
Walter Johnstone ◽  
...  
Keyword(s):  
Detection System ◽  
Chemical Species ◽  
Lock In
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