Apparatus for measuring a filling level

Details Apparatus for measuring a filling level Apparatus for measuring a filling level

2011-04-19

2011-04-19

Williams, Hezron (Department: 2856)

Measuring and testing

Liquid level or depth gauge

Thermal type

Reexamination Certificate

active

07926345

ABSTRACT:
An apparatus for measuring the filling level in a liquid vessel, in particular in a reactor vessel of a nuclear-engineering plant, with a plurality of elongate, spaced-apart measurement tubes. Each measurement tube has a number of thermocouples which are distributed in the longitudinal direction. A thermocouple, which acts as a primary signal transmitter, is heated by a heating element and is arranged on a first measurement tube, has assigned to it on the signal side an unheated thermocouple, which acts as a reference signal transmitter and is arranged on a measurement tube which is different from the first measurement tube.

REFERENCES:
patent: 4449403 (1984-05-01), McQueen
patent: 4785665 (1988-11-01), McCulloch
patent: 5600528 (1997-02-01), McQueen
patent: 19714534 (1998-05-01), None
patent: 2153712 (2000-07-01), None
International Search Report dated Aug. 16, 2007.

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