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首页> 美国卫生研究院文献>Sensors (Basel Switzerland) >Input-output Transfer Function Analysis of a Photometer Circuit Based on an Operational Amplifier
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Input-output Transfer Function Analysis of a Photometer Circuit Based on an Operational Amplifier

机译：基于运算放大器的光度计电路的输入输出传递函数分析

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摘要

In this paper an input-output transfer function analysis based on the frequency response of a photometer circuit based on operational amplifier (op amp) is carried out. Op amps are universally used in monitoring photodetectors and there are a variety of amplifier connections for this purpose. However, the electronic circuits that are usually used to carry out the signal treatment in photometer circuits introduce some limitations in the performance of the photometers that influence the selection of the op amps and other electronic devices. For example, the bandwidth, slew-rate, noise, input impedance and gain, among other characteristics of the op amp, are often the performance limiting factors of photometer circuits. For this reason, in this paper a comparative analysis between two photodiode amplifier circuits is carried out. One circuit is based on a conventional current-to-voltage converter connection and the other circuit is based on a robust current-to-voltage converter connection. The results are satisfactory and show that the photodiode amplifier performance can be improved by using robust control techniques.
机译：本文基于基于运算放大器（op amp）的光度计电路的频率响应进行了输入输出传递函数分析。运放普遍用于监视光电探测器，为此目的有各种放大器连接。但是，通常用于在光度计电路中执行信号处理的电子电路在光度计的性能方面引入了一些限制，从而影响了运算放大器和其他电子设备的选择。例如，带宽，压摆率，噪声，输入阻抗和增益以及运算放大器的其他特性通常是光度计电路的性能限制因素。因此，本文对两个光电二极管放大器电路进行了比较分析。一个电路基于常规的电流电压转换器连接，另一电路基于稳健的电流电压转换器连接。结果令人满意，表明通过使用鲁棒的控制技术可以提高光电二极管放大器的性能。

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