Method of measuring the height of a liquid using a high-frequency line probe

摘要: The invention relates to a method of measuring the height liquid using high-frequency line probe. According invention, comparison is made, on an electric circuit (3) which supplied with alternating current, between impedance coaxial or non-coaxial probe (1) and reference resistor (17), resistive bridge (7). (1), submerged in lank fluid be determined, forms one arm above-mentioned (17) opposite bridge, signal resulting from alternative measurement signals each said arms suitable detector. Subsequently, processed order obtain calculation according permittivity thereof, length power frequency.