Water content measurement device based on plug-in capacitive sensor
A technology of capacitive sensor and measuring device, applied in measuring device, material capacitance, instrument, etc., can solve the problems of complex installation, inconvenient installation, complex structure, etc.
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[0016] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0017] The present invention mainly comprises the design of sensor design, signal processing unit, effective value measuring unit and calculating unit, and concrete design is as follows:
[0018] 1. Sensor design
[0019] Such as figure 1 As shown, the plug-in capacitive sensor consists of an excitation measurement electrode in the middle and two guard electrodes above and below. Among them, the excitation and measurement share the same electrode of the sensor, and the metal pipe connected to the ground is used as the reference ground. When installing, the sensor is inserted from top to bottom along the direction of the vertical pipeline, so that the electrode is located at the axis of the vertical pipeline. The excitation measurement electrode and the protection electrode of the sensor are lead to the signal processing unit respectively, and the l...
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