The fluctuations are analyzed in amplitude, frequency, and phase of the sinusoidial signal in the experiment of the measurement of the frequencies of the unknown electrical signals by means of Lissajou figure , the causes of the error investigated and the methods to determine the relative error value found out.

On the application of dune curve statics.;

Study of dune curve static correction method in large desert area in Tarim basin;

In consideration of the characteristics of dune areas, especially the characters of seismic data of Tarim Oilfield as well as the problems existed in production, a simple and practical dune curve equation was proposed for field static correction of seismic data.

Comparing the fore-and-aft two grating images of worktable movement and adopting phase difference ratio arithmetic based on Lissajous figures,their phase difference can be figured out.

The scanner applies widely,such as demonstrating stationary wave,resonance,and Lissajous figure and so on.

Then,these calculated data are elaborately converted into a Lissajous figure by pixel translation.

the method of Lissajous figures.