IMPROVEMENTS IN OR RELATING TO D.C. POLAROGRAPHS
Patent
·
OSTI ID:4085141
A circuit to provide a current which compensates for the residual current in a polarograph in order to improve the sensitivity is described. This circuit takes into account variations in the value of the differential double- layer capacity. The residual current-compensating circuit consists of a means for applying a small a-c voltage across the polarograph cell, means of integrating this voltage, and a means for combining a compensating current proportional to the integrated voltage. Essentially the compensating circuit produces a current which accurately balances out not the absolute value of the residual current at the start of the polarogram but any changes in residual current during the recording. (M.C.G.) only when the air composition is altered, e.g., by smoke particles. (D.L.C.)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-15-011281
- OSTI ID:
- 4085141
- Report Number(s):
- GB 860130
- Country of Publication:
- United Kingdom
- Language:
- English
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