On-line monitoring capacitive sensor
The invention provides an on-line monitoring capacitive sensor. The sensor comprises a capacitor, a capacitor dielectric core, a pollutant injection mechanism, a charging and discharging oscillation circuit, a high-frequency pulse reading unit and a CPU processing unit. Two parallel polar plates of...
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Main Authors | , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
19.06.2020
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Subjects | |
Online Access | Get full text |
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Summary: | The invention provides an on-line monitoring capacitive sensor. The sensor comprises a capacitor, a capacitor dielectric core, a pollutant injection mechanism, a charging and discharging oscillation circuit, a high-frequency pulse reading unit and a CPU processing unit. Two parallel polar plates of the capacitor are connected to the charging and discharging oscillation circuit; the charging and discharging oscillation circuit can charge and discharge the two parallel polar plates of the capacitor to obtain a high-frequency pulse signal, the high-frequency pulse signal is sent to the high-frequency pulse reading unit through the output end of the charging and discharging oscillation circuit, and the high-frequency pulse reading unit sends the read pulse signal to the CPU processing unit. Physical quantities are converted into high-frequency pulse signals, the physical quantities are monitored by monitoring the numerical values of the high-frequency pulse signals, and different monitoredenvironmental pollution |
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Bibliography: | Application Number: CN202010183488 |