Gradient Thermogramms in Practical Tasks Solution

Abstract

The present work is devoted to obtaining gradient thermograms on liquid crystals of a cholesteric type. The technique and procedure of thermoindicators application, the ways of thermal streams reprsentation in practical devices are described. The technique for thermal pattern visualization in mechanics, heating engineering, hydraulics, optics, radio engineering, etc. is selected on the basis of the heat flow nature. Thus, the obtained gradient thermogram allows to read both qualitative and quantitative data taking into account the liquid crystals type, their mesophase, substrate, displacement temperature, if any. The theme is revealed through practical tasks such as the determination of electromagnetic wave length in the resonator, the determination of the friction coefficient of a pair of metals in the dry and liquid friction mode, thermal flows in the crystallizer modeling, material cutting modes during detail machining, corona discharge and tool cutting properties estimation. Liquid crystals are organic substances and they are subject to oxidation processes, which limits the application term of the liquid crystal thermoindicator, so to prolong the period of use one of the ways of encapsulating them, which allows to prolong the performance and efficiency term of the liquid crystal detector as a whole is proposed.