Title:
METHOD AND DEVICE FOR MEASURING FOULING OF CAPACITY TYPE DEWPOINT SENSOR
Document Type and Number:
Japanese Patent JPS5985949
Kind Code:
A
Abstract:
A dew-point measuring instrument has a capacitive dew-point sensor 1 which is cooled by a cooling device 17 to the dew-point temperature measured by a temperature sensor 8. A phase measuring circuit 14 measures the phase angle of the impedance of the capacitive dew-point sensor 1. The measured phase angle is used as a gauge for the contamination of the dew-point sensor 1.
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Inventors:
PAURUSU PETORUSU REONARUDOUSU
Application Number:
JP15512683A
Publication Date:
May 18, 1984
Filing Date:
August 26, 1983
Export Citation:
Assignee:
ENDRESS HAUSER GMBH CO
International Classes:
G01N25/68; G01N27/00; G01N27/02; G01N27/12; G01N27/22; (IPC1-7): G01N27/02; G01N27/22
Domestic Patent References:
JPS5731102A | 1982-02-19 | |||
JPS57111566A | 1982-07-12 |
Attorney, Agent or Firm:
Toshio Yano
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