Chemistry: electrical and wave energy – Processes and products
Patent
1988-06-24
1989-10-03
Niebling, John F.
Chemistry: electrical and wave energy
Processes and products
204225, 204406, 204409, 204411, 204412, 324 711, 324439, 324443, G01N 2704
Patent
active
048714275
ABSTRACT:
An electrochemical differential resistance measurement arrangement usable for detecting low concentration ionic impurities such as chemical warfare agents in liquids such as water. The disclosure includes details of electrochemical cells used in the liquid resistance measurement arrangement including one cell with fixed electrode positions and a selective ion transmitting membrane one cell with adjustable electrode position, and a combination cell. A differential bridge electrical circuit, together with a preferred form of alternating current energization therefor, an effluent circuit therefor and a balancing method sequence of steps for the bridge, are also included.
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Hollins G. B.
Niebling John F.
Ryser David G.
Singer Donald J.
United States of America as represented by the Secretary of the
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