Bennett M Butters DeceasedArlington, WA
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Arlington, WA
Stanwood, WA
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Us Patents
System And Method For Characterizing A Sample By Low-Frequency Spectra
US Patent:
7081747, Jul 25, 2006
Filed:
Aug 20, 2004
Appl. No.:
10/923545
Inventors:
John T. Butters - Langley WA, US
Bennett M. Butters - Lacey WA, US
Lisa C. Butters - Langley WA, US
Bennett M. Butters - Lacey WA, US
Lisa C. Butters - Langley WA, US
Assignee:
Nativis, Inc. - La Jolla CA
International Classification:
G01R 33/02
US Classification:
324248, 324244, 702 75
Abstract:
A method and apparatus for interrogating a sample that exhibits molecular rotation are disclosed. In practicing the method, the sample is placed in a container having both magnetic and electromagnetic shielding, and Gaussian noise is injected into the sample. An electromagnetic time-domain signal composed of sample source radiation superimposed on the injected Guassian noise is detected, and this signal is cross-correlated with a second time-domain signal produced by the same or similar sample, to produce a cross-correlated signal with frequency domain components. The latter is plotted in the frequency domain by a fast Fourier transform to produce a frequency domain spectrum in a frequency range within DC to 50 KHz. From this spectrum, one or more low-frequency signal components that are characteristic of the sample being interrogated are identified.
Apparatus And Method For Measurement Of Molecular Electromagnetic Signals
US Patent:
2003018, Oct 2, 2003
Filed:
Mar 29, 2002
Appl. No.:
10/112927
Inventors:
John Butters - Langley WA, US
Bennett Butters - Lacey WA, US
Lisa Butters - Langley WA, US
Bennett Butters - Lacey WA, US
Lisa Butters - Langley WA, US
Assignee:
WavBank Inc.
International Classification:
G01R033/02
US Classification:
324/248000, 702/027000
Abstract:
An apparatus and method for the repeatable detection and recording of low-threshold molecular electromagnetic signals. The sample material and detection apparatus are contained with a magnetically shielded faraday cage to shield them from extraneous electromagnetic signals. The detection apparatus includes a detection coil and Super Conducting Quantum Interference Device (“SQUID”). White noise is injected external to the SQUID and the signals emitted by the sample material enhanced by stochastic resonance.
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