LOGO2

Instrument Design 

the heart of the matter

The AC Wheatstone Bridge

AC Bridge scheme Photo 1 whole setup

The Whole System

Carbon Electrodes Photo 2 thermo Box

The thermostatted Box

Thermo Box open

The thermostatted box OPEN

Circuit Boards

The breadboards

Dr DAQ

The interface board - Dr DAQ - very versatile

Whole system + Lid

The whole system with insulating lid in place

NOT USED NOW replaced with LOW COST ELECTRODES

Sq Wave Generator NOW 27.8kHz ,      see circuits

Long-Tailed Pair replaced with 741 OPAMP differential amplifier see CIRCUITS