Patent ID: 11927547
Assignee: JIANGSU MATHE INTERNET OF THINGS TECHNOLOGY CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A detection system for water content and conductivity of a measured medium, comprising a double-sided microstrip circuit and a detection circuit, wherein: the double-sided microstrip circuit comprises a shielding ground layer; a measurement side circuit is arranged at one side of the shielding ground layer, and a reference side circuit is arranged at the other side of the shielding ground layer; both of the measurement side circuit and the reference side circuit comprise an insulating layer and a wire; lengths and materials of a measurement wire of the measurement side circuit and a reference wire of the reference side circuit are uniform; the detection circuit comprises a signal generator connected to a microprocessor; the signal generator is connected to an input end of a power divider; two output ends and a ground end of the power divider are respectively electrically connected to a first end of the reference wire, a first end of the measurement wire, and a first end of the shielding ground layer; a second end of the reference wire is connected to a first input end of an amplitude and phase discriminator through a phase shifter; a second end of the measurement wire and a second end of the shielding ground layer are respectively connected to a second input end and a ground end of the amplitude and phase discriminator; an output end of the amplitude and phase discriminator is connected to the microprocessor; the measurement side circuit contacts the measured medium, and the reference side circuit contacts air or a low-dielectric constant material; a measurement side insulating layer of the measurement side circuit is identical to a reference side insulating layer of the reference side circuit in materials and thicknesses; the signal generator outputs a variable-frequency signal of 200-960 MHz; the power divider divides the signal into two signals with a proportion of 1:1, and respectively output to the measurement side circuit and the reference side circuit.