Calibration method for capacitance level sensing apparatus and anti-interference method for plural capacitance level sensing apparatuses
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United States of America Patent
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-
May 2, 2017
Issued Date -
N/A
app pub date -
Aug 7, 2015
filing date -
Aug 7, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A calibration method for a capacitance level sensing apparatus (10) is applied for a tank measurement. A measurement signal generating circuit (102) generates a measurement signal (104) to proceed with the tank measurement. According to a measurement result measured through the measurement signal (104), a sensing circuit (108) transmits a sensing signal (110) to a control unit (112). According to the sensing signal (110), the control unit (112) determines whether the sensing signal (110) is in an effective range or not. If the sensing signal (110) is in the effective range, the control unit (112) sets a total capacitance in accordance with the sensing signal (110) as a measurement base value. If the sensing signal (110) is not in the effective range, the control unit (112) controls the measurement signal generating circuit (102) to adjust a measurement frequency of the measurement signal (104).
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International Classification(s)
- 2015 Application Filing Year
- G01F Class
- 1076 Applications Filed
- 820 Patents Issued To-Date
- 76.21 % Issued To-Date
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- G01F Class
- 0 % this patent is cited more than
- 8 Age
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