Measuring electrode tip's position determining method, involves applying voltage jump function between measuring electrode and counter electrode, and forming difference between two voltages that are detected at respective time points
摘要
<p>The method involves charging a measuring electrode with an electrical signal and measuring the impedance between the measuring electrode and a counter electrode that is fastened to a mouth. A voltage jump function is applied between the measuring electrode and the counter electrode. A difference between two voltages that are detected at respective time points is formed, where one time point lies between 20 and 100 microsecond after the start of the voltage jump and the other time point lies between 40 and 200 microsecond after the start of the voltage jump.</p>
