TEMPERATURE STABILIZING SYSTEM FOR ELECTROMAGNET

摘要

The temperature stabilization system is designed for thermal stabilization of resistive electromagnets suitable mainly for use in tomography and spectroscopy based on nuclear magnetic resonance. The principle of the stabilization system consists in the fact that an output of a temperature sensor of cooling medium is connected with an input of a preselection block of a comparator, connected with logical circuit with an evaluation element, whose outlet is connected with an input of a reverse counter connected to a digital-to-analogue converter. The digital-to-analogue converter is connected with an input of a power element, connected with a pump of the cooling medium. The temperature stabilization system can be used in nuclear magnetic resonance tomography and spectrography with resistive electromagnet and in all places where it is necessary to achieve high long-time thermal stability.<IMAGE>