Surface water conductivity non-contact measurement device and method
A non-contact measurement and water conductivity technology, applied in measurement devices, measurement of electrical variables, measurement of resistance/reactance/impedance, etc., can solve the problems of heavy maintenance burden, oxidation and corrosion, and the need for regular cleaning to reduce maintenance work. amount of effect
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[0031] Such as figure 1 As shown, the non-contact measurement device for surface water conductivity includes a buoyancy tank 1 , an AC excitation source 2 , an inductance module 3 , a detection module 4 and a signal processing circuit 8 . The detection module 4 includes an excitation electrode 5 , a detection electrode 7 and an insulating layer 6 attached to the outer bottom of the buoyancy tank. The electrodes are separated from the water by a thin insulating layer 6 . The AC excitation source 2 is connected to the excitation electrode 5 via the inductance module 3 , the detection electrode 7 is connected to the signal processing circuit 8 , and the signal processing circuit 8 is connected to the data acquisition and processing system 9 .
[0032] Such as figure 2 As shown, the equivalent circuit diagram of the non-contact measurement of surface water conductivity is: the output terminal of the first operational amplifier of the AC excitation source 2 is connected to one e...
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