SIMULINK emulation module of Nonlinear Integrator and the nonlinear compensation emulation of its control system have been achieved adopting MATLAB language.

This paper simply describes characteristic of MATLAB language, then especially introduces the emulation of oscilloscope and spectrum analyzer applying MATLAB language.

Using the finite method to solve the problem of temperature distribution in the wall of periodic kiln wall and using the language c, the software system of figure emulation is developed in this paper.