Induction voidmeter

Patent · Wed Jan 01 04:00:00 EST 1986

OSTI ID:865861

Anderson, Thomas T ^[1]; Roop, Conard J ^[2]; Schmidt, Kenneth J ^[3]; Brewer, John ^[4]

---

1. Downers Grove, IL
2. Lockport, IL
3. Midlothian, IL
4. Oak Lawn, IL

An induction voidmeter for detecting voids in a conductive fluid may comprise: a four arm bridge circuit having two adjustable circuit elements connected as opposite arms of said bridge circuit, an input branch, and an output branch; two induction coils, bifilarly wound together, connected as the remaining two opposing arms of said bridge circuit and positioned such that the conductive fluid passes through said coils; applying an AC excitation signal to said input branch; and detecting the output signal generated in response to said excitation signal across said output branch. The induction coils may be located outside or inside a non-magnetic pipe containing the conductive fluid.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38
• Assignee: United States of America as represented by Department of Energy (Washington, DC)
• Patent Number(s): US 4590431
• OSTI ID: 865861
• Country of Publication: United States
• Language: English

Related Subjects

/324/376/976/
adjustable
applying
arm
arms
bifilarly
bifilarly wound
branch
bridge
bridge circuit
circuit
circuit element
circuit elements
coils
comprise
conductive
conductive fluid
connected
containing
detecting
detecting voids
elements
elements connected
excitation
excitation signal
fluid
fluid passes
generated
induction
induction coil
induction coils
induction voidmeter
input
inside
located
located outside
non-magnetic
opposing
opposing arms
opposite
opposite arms
output
output signal
outside
passes
pipe
pipe containing
positioned
remaining
response
signal
signal generated
voidmeter
voids
wound