For sensor signals, commonly used amplifiers include differential amplifiers, instrument amplifiers and operational amplifiers.
Differential amplifiers are suitable for situations where two input signals need to be amplified and the difference calculated; The instrument amplifier is mainly used to measure small signal voltage and amplify it accurately. The operational amplifier can perform a variety of basic arithmetic operations, such as addition, subtraction, multiplication and division. In the application, it is necessary to select the appropriate amplifier type and parameters according to the specific needs to ensure the accuracy and reliability of the system.