Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Reexamination Certificate
2008-10-31
2011-10-04
Nguyen, Hoai-An D (Department: 2858)
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
C324S686000, C324S689000
Reexamination Certificate
active
08030949
ABSTRACT:
In a method for capacitive determination of the moisture content in a gas to be measured, it is provided that a capacitive element (2) brought into contact with a gas to be measured is operated in the manner of an RC oscillator (5) in charge-discharge cycles (27, 28), with the moisture content of the gas to be measured being determined from the time duration of a cycle. To assess measurement errors brought about by contaminants or aging effects, a measure for the time duration of a charging process (27) and a discharging process (28) is determined from output signal (26) of RC oscillator (5) and is processed with the measurement signal for the moisture content into a corrected measurement signal.
REFERENCES:
patent: 4607238 (1986-08-01), Kohsiek
patent: 4662220 (1987-05-01), Laue
patent: 5014908 (1991-05-01), Cox
patent: 5861755 (1999-01-01), Moerk et al.
patent: 7084644 (2006-08-01), Haider
patent: 7605710 (2009-10-01), Crnkovich et al.
patent: 2242279 (1991-09-01), None
Sensirion / The Sensor Company: “SHT1x / SHT7x Humidity & Temperature Sensor”, Chapter 3, v2.02, Jul. 2004, pp. 1-9.
Hoffmann & Baron , LLP
Nguyen Hoai-An D
Testo AG
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