In this work we performed calibration of the gradient heat flux sensor made of bismuth single crystal. The value of the volt-watt sensitivity of the sensor is found and a data processing method based on the one-dimensional heat equation for a thin plate is presented. An experimental study of the heat flux on the frontal surface of the cylinder after a laser discharge was carried out. The data obtained as a result of the experiment were processed by the proposed method.

This article devoted to the study of gas heating in the region of an electric interelectrode discharge. The dynamics of local heating is studied using numerical methods and experimentally using an interferometer. The research results make it possible to evaluate the change in the temperature distribution in the cross section of the discharge track, the dynamics of the maximum heating temperature and the size of the heated area.