Oilfield water contains a large amount of carbonate and bicarbonate, introduces the principle and method of measurement using the dual electrode method, and develops an automatic measurement system based on this method. The test system uses single-chip microcomputer as the core for control and signal processing, the amplifier circuit realizes high impedance matching and signal amplification, and the temperature compensation circuit realizes self-compensation of temperature. The system has the characteristics of reliable performance, fast measurement speed, wide measurement range, long-term continuous use and online testing.
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