G - Physics – 01 – N
Patent
G - Physics
01
N
349/37, 349/38,
G01N 29/02 (2006.01) G01F 23/296 (2006.01) G01H 5/00 (2006.01) G01N 29/024 (2006.01)
Patent
CA 2028750
A multi-level probe for sonic range measurements utilizes a plurality of parallel reflectors that each include an opening arranged coaxially about a beam of ultrasonic energy transmitted along a reference axis from an associated transducer. The opening in each reflector permits most of the sonic energy to pass to a subsequent reflective surface, while the periphery about the opening provides echo signals for determining physical conditions in the environment through which the sonic energy has passed. A novel system is used for determining physical conditions that are a function of time differences between signals from different reflectors, calculated with a highly efficient digital signal processing algorithm.
Campbell Eric
Campbell Gaylon
Heers Art
Norton Jeff
Campbell Scientific Inc.
Riches Mckenzie & Herbert Llp
LandOfFree
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