Noise-factor measurement errors due to automatic gain control

1966 ◽  
Vol 9 (12) ◽  
pp. 1563-1566
Author(s):  
A. S. Kucherov
Keyword(s):  
Measurement Errors ◽  
Automatic Gain Control ◽  
Gain Control ◽  
Noise Factor ◽  
Factor Measurement

An Application of the AGC Technology for Sensor Signal Processing

2005 ◽  
Vol 295-296 ◽  
pp. 753-0
Author(s):  
Xiao Kang Liu ◽  
Dong Lin Peng ◽  
Xing Hong Zhang ◽  
X.H. Cheng
Keyword(s):  
Signal Processing ◽  
Wireless Communication ◽  
Measurement Errors ◽  
Automatic Gain Control ◽  
Gain Control ◽  
Experimental Results ◽  
Displacement Sensor ◽  
Sensor Signal ◽  
Electronic Technology ◽  
Common Problems

Machining precision deficiency and installing error are very common problems for many sensors, which may result in unstable amplitude i the signal detected by the probe and further cause measurement errors of the sensors. The concept of using electronic technology to offset machinery precision deficiency is utilized. A new method of electronic rectifying is proposed. The automatic gain control (AGC) technology used in the field of wireless communication is applied for sensor signal processing. An AGC circuit consisting of a multiplier and divider AD534 is designed. A new smart time grating displacement sensor currently under development by us is used to provide experimental results for comparison with and without the AGC technology.

scholarly journals Measuring Current in a Power Converter Using Fuzzy Automatic Gain Control

2021 ◽  
Vol 11 (13) ◽  
pp. 5793
Author(s):  
Bartosz Dominikowski
Keyword(s):  
High Resolution ◽  
Fuzzy Controller ◽  
Automatic Gain Control ◽  
Gain Control ◽  
Measurement Range ◽  
Power Converter ◽  
Current Measurement ◽  
Dc Power ◽  
Programmable Gain ◽  
Electric Loads

The accuracy of current measurements can be increased by appropriate amplification of the signal to within the measurement range. Accurate current measurement is important for energy monitoring and in power converter control systems. Resistance and inductive current transducers are used to measure the major current in AC/DC power converters. The output value of the current transducer depends on the load motor, and changes across the whole measurement range. Modern current measurement circuits are equipped with operational amplifiers with constant or programmable gain. These circuits are not able to measure small input currents with high resolution. This article proposes a precise loop gain system that can be implemented with various algorithms. Computer analysis of various automatic gain control (AGC) systems proved the effectiveness of the Mamdani controller, which was implemented in an MCU (microprocessor). The proposed fuzzy controller continuously determines the value of the conversion factor. The system also enables high resolution measurements of the current emitted from small electric loads (≥1 A) when the electric motor is stationary.

Dual cavity optical automatic gain control for EDFAs

2003 ◽  
Author(s):  
M.F. Krol ◽  
Yongqian Liu ◽  
J.J. Watkins ◽  
D.W. Lambert
Keyword(s):  
Automatic Gain Control ◽  
Gain Control

Automatic Gain Control in Tv Automation

1957 ◽  
Vol PGBTS-8 (1) ◽  
pp. 6-9
Author(s):  
M. H. Diehl ◽  
W. J. Hoffman ◽  
W. L. Shepard
Keyword(s):  
Automatic Gain Control ◽  
Gain Control
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