Continuous RF admittance level instrument
Wei Ren Chen · Sensor World · 2011
Hanging phenomena often happen when the level of adherent material is measured with capacitive level measuring instruments,which limit the application of capacitive instruments extremely.A continuous radio frequency admittance level measuring system is designed in this paper based on the traditional capacitive level measurement instrument.The system adopts the radio frequency signals and adds the shielding circuits to eliminate the effect of coating on the sensing components in the internal circuit.The system could measure level continuously,display the current level value in real time and create the conditions for the full automatic level measurement.