Nonferromagnetic linear variable differential transformer
Patent
·
OSTI ID:862860
- Powell, TN
- Oak Ridge, TN
A nonferromagnetic linear variable differential transformer for accurately measuring mechanical displacements in the presence of high magnetic fields is provided. The device utilizes a movable primary coil inside a fixed secondary coil that consists of two series-opposed windings. Operation is such that the secondary output voltage is maintained in phase (depending on polarity) with the primary voltage. The transducer is well-suited to long cable runs and is useful for measuring small displacements in the presence of high or alternating magnetic fields.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
- Assignee:
- United States of America as represented by United States Energy (Washington, DC)
- Patent Number(s):
- US 4030085
- OSTI ID:
- 862860
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
/340/376/
accurately
accurately measuring
alternating
alternating magnetic
cable
coil
consists
depending
device
device utilizes
differential
differential transformer
displacements
fields
fixed
inside
linear
linear variable
magnetic
magnetic field
magnetic fields
maintained
measuring
mechanical
mechanical displacement
movable
nonferromagnetic
nonferromagnetic linear
operation
output
output voltage
phase
polarity
presence
primary
provided
runs
secondary
secondary coil
series-opposed
transducer
transformer
useful
utilizes
variable
variable differential
voltage
well-suited
windings
accurately
accurately measuring
alternating
alternating magnetic
cable
coil
consists
depending
device
device utilizes
differential
differential transformer
displacements
fields
fixed
inside
linear
linear variable
magnetic
magnetic field
magnetic fields
maintained
measuring
mechanical
mechanical displacement
movable
nonferromagnetic
nonferromagnetic linear
operation
output
output voltage
phase
polarity
presence
primary
provided
runs
secondary
secondary coil
series-opposed
transducer
transformer
useful
utilizes
variable
variable differential
voltage
well-suited
windings