Probe for measuring the level of a liquid. [liquid alkali metals in reactor vessels]

Patent · Tue Apr 06 00:00:00 EST 1976

OSTI ID:7350931

Paris, M; Poinsot, S

A probe of the mutual inductance type with a linear response which is independent of temperature comprises a rigid support, two insulated cables disposed in interengaged relation and wound on the support, means for supplying one of the cables C/sub 1/ with alternating current having constant amplitude and frequency, and means for measuring the voltage between the two extremities of the second cable C/sub 2/. A single resistor R is placed between the extremities of the cable C/sub 2/, the resistance value of the resistor and the value of the frequency f being determined so as to ensure that the variations in voltage measured between the extremities of the cable C/sub 2/ are reduced to zero in respect to any given level of liquid outside the probe. The probe was designed for measuring the level of liquid alkali metals in nuclear reactor vessels.

• Assignee: Commissariat a l'Energie Atomique
• Patent Number(s): US 3948100
• Application Number: TRN: 76-014932
• OSTI ID: 7350931
• Resource Relation: Patent Priority Date: Priority date 5 Oct 1973, France
• Country of Publication: United States
• Language: English

Related Subjects

47 OTHER INSTRUMENTATION
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
ALKALI METALS
LEVELS
LEVEL INDICATORS
DESIGN
REACTOR INSTRUMENTATION
ALTERNATING CURRENT
INDUCTION
LIQUID METALS
SODIUM
CURRENTS
ELECTRIC CURRENTS
ELEMENTS
FLUIDS
LIQUIDS
MEASURING INSTRUMENTS
METALS
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