Temperature sensor and extensometer
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United States of America Patent
Stats
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Aug 18, 2009
Grant Date -
N/A
app pub date -
Nov 10, 2005
filing date -
Nov 11, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A thermometer and extensometer for cables and conductors is described. The travel time of one or more acoustic signals along a conductor is used to determine the temperature along the conductor and the length of the conductor. The acoustic frequency is selected to minimize temporal dispersion of the propagating acoustic energy. The technique can be used to measure the temperature and sag of an overhead power line, the temperature of the windings in a transformer, or the temperature of the central conductor in a coaxial power cable.
First Claim
Family
International Classification(s)
- G01H:MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC....
- G01K:MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT;....
- G01N:INVESTIGATING OR ANALYSING MATERIALS BY DETERMININ....
- G01S:RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMI....
- G01B:MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIME....
- G01V:GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING ....
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