Auto-switch for multi-sampling of a wire beam electrode corrosion monitoring system

An auto-switch device has been designed, constructed and tested for multisensor corrosion measurements. The auto-switch is able to connect/disconnect the selected wire beam electrode and/or electrode pairs under computer control. A computer controlled analog switch-array consisting of 100 inputs has been used as an essential part of the switch bank. The switch-bank is an essential component of a corrosion monitoring instrument which is expected to find wide applications in industry. The performance of the switch-bank has been discussed and its effect on the signals have been illustrated.