Electricity: measuring and testing – Electrolyte properties – Using a conductivity determining device
Patent
1979-08-06
1982-05-25
Moore, David K.
Electricity: measuring and testing
Electrolyte properties
Using a conductivity determining device
324446, 324442, G01N 2742
Patent
active
043319238
ABSTRACT:
Circuitry is disclosed for measuring the quantity of total dissolved ionized salts in an undiluted aqueous sample. A bi-level power supply operating through a square wave generator and voltage follower creates a low amplitude AC signal at a predetermined level above a ground reference. The control voltage is applied through a conductivity probe assembly to two series connected operational amplifiers operating through a bridge assembly and meter movement to provide a reading of the total dissolved ionized salts in the sample as a function of their ionization characteristics.
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