Overview of Seismic Vibrator Control Electronics

Seismic vibrators have been widely used in land seismic exploration. To improve the vibrator performance, it is important and necessary to accurately control the vibrator ground force output. The success of the Vibroseis technology greatly depends upon the ability of the vibrator control electronics to precisely control the amplitude and phase spectra of the vibrator ground force as well as the harmonic distortion on the vibrator ground force. This paper is intended to provide an overview of the vibrator performance on these fundamentals when the vibrator is controlled by three different control electronics.