PROGRAMMABLE, AUTONOMOUS FIELD POTENTIOSTATE FOR MULTIPLE REAL-TIME TESTS.

摘要

The present invention relates to a programmable, autonomous field potentiostate for multiple real time tests, of the type including an electrochemical cell with three electrodes, a first one being a work electrode, a second one being a reference electrode and a third one being an auxiliary electrode, said electrodes being exposed to a corrosive media. The field potentiostate is characterized in that it comprises a digital module including analogic digital converters, and coupling digital analogic-to-analogic module, which are connected to a micro-controller that receives information from, and transmits the same to, a reading and writing memory, and in that the micro-controller is programmed from an only read memory, and coupled to a peripheral controller which delivers signals to and receive the same from a real time clock, and in that the micro-controller may be removably connected to a computer through a series port, and in that the analogic module transmits a voltage differential which is received from the work electrode from the electrochemical cell, through a current-to-voltage converter and a filter, and in that the auxiliary electrode is handled by means of a differential amplifier coupled to a control stage and a power amplifier for correcting the reference electrode potential differential, which is obtained through an impedance separator.