Resonance-enhanced dielectric sensing of chemical and biological species
Abstract
A dielectric sensing method and apparatus are provided for detection and classification of chemical and biological materials. Resonance patterns of a sample within a resonator are detected for identifying a shift in resonance frequency and a change of line width before and after introduction of the sample. The identified shift in resonance frequency and change of line width are used for determining a complex dielectric constant of the sample for the material detection and classification. A degree of selectivity at any excitation frequency is enabled for the dielectric sensing method from the manner in which the complex dielectric constant of a material affects the resonance pattern of the resonator with respect to shift in resonance frequency and the change in line width. By selecting the excitation frequencies to generally correspond to one of the resonance frequencies of the sample material under test, the degree of selectivity and the sensitivity of detection are enhanced.
- Inventors:
- Issue Date:
- Research Org.:
- U Chicago Argonne LLC, Chicago, IL (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1531531
- Patent Number(s):
- 7223608
- Application Number:
- 10/637,127
- Assignee:
- U Chicago Argonne LLC (Chicago, IL)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- DOE Contract Number:
- W-31-109-ENG-38
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2003-08-08
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Gopalsami, Nachappa, and Raptis, Apostolos C. Resonance-enhanced dielectric sensing of chemical and biological species. United States: N. p., 2007.
Web.
Gopalsami, Nachappa, & Raptis, Apostolos C. Resonance-enhanced dielectric sensing of chemical and biological species. United States.
Gopalsami, Nachappa, and Raptis, Apostolos C. Tue .
"Resonance-enhanced dielectric sensing of chemical and biological species". United States. https://www.osti.gov/servlets/purl/1531531.
@article{osti_1531531,
title = {Resonance-enhanced dielectric sensing of chemical and biological species},
author = {Gopalsami, Nachappa and Raptis, Apostolos C.},
abstractNote = {A dielectric sensing method and apparatus are provided for detection and classification of chemical and biological materials. Resonance patterns of a sample within a resonator are detected for identifying a shift in resonance frequency and a change of line width before and after introduction of the sample. The identified shift in resonance frequency and change of line width are used for determining a complex dielectric constant of the sample for the material detection and classification. A degree of selectivity at any excitation frequency is enabled for the dielectric sensing method from the manner in which the complex dielectric constant of a material affects the resonance pattern of the resonator with respect to shift in resonance frequency and the change in line width. By selecting the excitation frequencies to generally correspond to one of the resonance frequencies of the sample material under test, the degree of selectivity and the sensitivity of detection are enhanced.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 29 00:00:00 EDT 2007},
month = {Tue May 29 00:00:00 EDT 2007}
}
Works referenced in this record:
Resonant sensor for dip
patent-application, January 2003
- Madaras, Jon Michael; Kot, Kenneth Michael; Bujak, Paul Michael
- US Patent Application 09/903042; 20030012867
Sensors of conducting and insulating composites
patent, May 2005
- Lewis, Nathan S.; Grubbs, Robert H.; Sotzing, Gregory A.
- US Patent Document 6,890,715
Measurement by concentration of a material within a structure
patent-application, January 2002
- Scott, Bentley N.
- US Patent Application 09/803716; 20020005725
Apparatus for performing chemical and physical pressure reactions
patent, January 1995
- Lautenschlager, Werner
- US Patent Document 5,382,414
Method and device for measuring dielectric constant
patent, December 2002
- Nagata, Shinichi; Miyamoto, Seiichi; Okada, Fumiaki
- US Patent Document 6,496,018
Method for measuring the material moisture content of a material under test using microwaves
patent, March 1995
- Tews, Manfred; Sikora, Jan; Herrmann, Rainer
- US Patent Document 5,397,993
Works referencing / citing this record: