仪器采用吸光光度法测量原理，在测量方法上避免了模拟对数放大与运算；
With the measurement principle of spectrophotometry, the analyzer calculates absorbency by software . avoiding the mathematical formulas of logarithmic ratio amplifiers.
基于斜率故障模型，提出了一种诊断模拟电路中基于闭环集成运算放大器的模块级软故障的字典法。
Based on the slope fault model, this paper presents a fault dictionary method for soft fault diagnosis of modular analog circuit based on closed-loop operational amplifier (CLOA).
文中提出的用符号分析法模拟PEEC模型以及其它电路元器件，具有大大降低运算量等优点。
In this study, symbolic analysis is proposed to simulate the equivalent circuits of PEEC, as well as components and devices.
计算机模拟与实际测试显示，该法性能良好，运算量小，具有很高的实用价值。
Calculations analysis, computer simulation and practice test show that the method has good performance.
计算机模拟与实际测试显示，该法性能良好，运算量小，具有很高的实用价值。
Calculations analysis, computer simulation and practice test show that the method has good performance.
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