Research on the Model of ESDD and NSDD Calculating with Horizontal and Vertical Polarization Modes Radiometer

The mathematical mode calculating the equivalent salt deposit density (ESDD) and non-soluble deposit density (NSDD) was proposed through detecting the antenna temperature of insulators contamination with microwave radiometer in this paper. Under the conditions of the measure angle(40 degrees)and two polarization radiometer, this paper studies the relationship between the brightness temperature and ESDD as well as NSDD, shorten the measurement in the measurement to eliminate interference from background noise. The results show that both ESDD and NSDD are mutually independent as for the influence on the brightness temperature. ESDD and NSDD can be calculated through the models, which provides a theoretical basis for engineering applications.