A simple, low cost potentiostat for corrosion studies
Abstract
A potensiostat for long term tests in sea water was designed, using readily available integrated-circuit operational amplifiers and voltage stabilizers. Reference electrode to specimen voltage is + or - 2V. Specimen to counter electrode voltage is + or - 10V. Maximum output current is 0.1 A. Inputs are isolated from earth. Reference electrodes input impedance is 100 million ohms. It has recording outputs for cell-current and specimen-to-reference potential. In performance tests, potential drift never exceeds 5 mV over a 50 day period.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- July 1984
- Bibcode:
- 1984STIN...8513203F
- Keywords:
-
- Corrosion Tests;
- Potentiometers (Instruments);
- Sea Water;
- Cost Reduction;
- Equipment Specifications;
- Performance Tests;
- Systems Engineering;
- Instrumentation and Photography