Induction voidmeter

Patent · Tue May 20 00:00:00 EDT 1986

OSTI ID:5633548

Anderson, T T; Roop, C J; Schmidt, K J; Brewer, J

An apparatus is described for detecting voids in a conductive fluid comprising: a four arm bridge circuit having two adjustable circuit elements connected as opposing arms of the bridge circuit, an input branch, and an output branch; two induction coils, bifilarly wound together, connected as the remaining two opposing arms of the bridge circuit, and positioned such that the conductive fluid passes through the coils; means for applying an AC excitation signal to the input branch; and means for detecting the output signal generated in response to the excitation signal across the output branch.

• Assignee: Dept. of Energy, Washington, DC
• Patent Number(s): US 4590431
• OSTI ID: 5633548
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
440300 -- Miscellaneous Instruments-- (-1989)
47 OTHER INSTRUMENTATION
ALKALI METALS
ALTERNATING CURRENT
CURRENTS
DESIGN
ELECTRIC BRIDGES
ELECTRIC COILS
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
ELECTRONIC CIRCUITS
ELEMENTS
ENERGY-LEVEL TRANSITIONS
EQUIPMENT
EXCITATION
FLOWMETERS
FLUIDS
INDUCTION
LIQUID METALS
LIQUIDS
MAGNET COILS
MEASURING INSTRUMENTS
METALS
METERS
PHYSICAL PROPERTIES
POSITIONING
SIGNALS
SODIUM
VOIDS