A contactless conductivity measuring device

By employing the non-contact electromagnetic induction principle and temperature compensation technology, the accuracy and stability issues of traditional contact conductivity measurement devices in extreme environments have been resolved, providing an efficient and accurate conductivity measurement solution.

CN224317563UActive Publication Date: 2026-06-02SICHUAN HELI CONSTR ENG INSPECTION & APPRAISAL CONSULTING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN HELI CONSTR ENG INSPECTION & APPRAISAL CONSULTING CO LTD
Filing Date
2025-04-17
Publication Date
2026-06-02

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Abstract

This application relates to the field of conductivity measurement technology, specifically to a non-contact conductivity measurement device. It includes a measurement unit, a signal processing unit, a temperature compensation unit, a power supply unit, and a sample container. The measurement unit includes a solenoid, a resistor, and a capacitor connected in series to form an RLC circuit module. The signal processing unit includes an analog-to-digital converter (ADC) and a processor, with the processor connected to the measurement unit via the ADC. The temperature compensation unit is connected to the processor and used to monitor the ambient temperature. The power supply unit is connected to the measurement unit, the signal processing unit, and the temperature compensation unit. The sample container is arranged at intervals between the measurement unit and the sample container and is used to hold reference samples. This application enables non-contact conductivity measurement, avoiding the electrode corrosion and cleaning problems inherent in contact measurements.
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