Operating conditions monitoring for electrochemical sensors - by measuring inlet of amplifier connected by switch to testing voltage at switch signal potential

摘要

The measuring inlet of an amplifier, connected to the sensor, is connected via a switch to a testing voltage. The connecting point (Pi) of the switch (Si) with the measuring switch is maintained at the same potential as the signal (P2) of the switch during measuring. The appts. for the monitor is also new. USE/ADVANTAGE - Used to measure the behavious of inner resistance of potentiometric half cells and the reference half cells.