A Graphic Method for Showing the Polarization History of a Pc1 Micropulsation Event

Essentially the entire polarization and amplitude history of certain micropulsation events recorded on magnetic tape can be presented in graphic visual form on permanent film records by the method described. Moving-film photography of a Lissajous figure swept across an oscilloscope screen results in a continuous cycle by cycle presentation of the polarization ellipse on 35-mm film in raster form, with each line of the raster synchronized to a time base on the tape.