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Class Information
Number: 324/636
Name: Electricity: measuring and testing > Impedance, admittance or other quantities representative of electrical stimulus/response relationships > Distributive type parameters > Using resonant frequency > With a resonant cavity
Description: Subject matter including a resonant circuit type wherein current is distributed on an inner surface of a closed chamber.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7602193 |
RF waveguide mode suppression in cavities used for measurement of dielectric properties |
Oct. 13, 2009 |
| 7554339 |
Electromagnetic testing of an enclosure or cavity using a discrete frequency stir method |
Jun. 30, 2009 |
| 7548072 |
Potential separation for filling level radar |
Jun. 16, 2009 |
| 7535236 |
Method of measuring thickness of thin film using microwave |
May. 19, 2009 |
| 7532015 |
Microwave spectroscopy probe |
May. 12, 2009 |
| 7514269 |
Precision adaptable chemical spectrometer |
Apr. 7, 2009 |
| 7449893 |
Harmonic load pull tuner with resonant prematching module |
Nov. 11, 2008 |
| 7362108 |
Method and system for measurement of sidewall damage in etched dielectric structures using a near field microwave probe |
Apr. 22, 2008 |
| 7239150 |
Pavement material microwave density measurement methods and apparatuses |
Jul. 3, 2007 |
| 7199591 |
Method of measuring relative dielectric constant of dielectric substance of powders, cavity resonator used in the same, and application apparatus |
Apr. 3, 2007 |
| 7173435 |
Thickness measuring apparatus and method using a microwave cavity resonator |
Feb. 6, 2007 |
| 7135869 |
Thickness measuring systems and methods using a cavity resonator |
Nov. 14, 2006 |
| 7132836 |
Microwave measuring arrangement for product density measurement |
Nov. 7, 2006 |
| 7105787 |
Reverberating adaptive microwave-stirred exposure system |
Sep. 12, 2006 |
| 7068048 |
Microwave sensor for measuring a dielectric property of a product |
Jun. 27, 2006 |
| 7057398 |
Microwave spectrometer |
Jun. 6, 2006 |
| 7034549 |
Device to detect and measure the concentration and characterization of airborne conductive or dielectric particles |
Apr. 25, 2006 |
| 6989675 |
Method and apparatus for precision measurement of film thickness |
Jan. 24, 2006 |
| 6954077 |
Apparatus and method for improving microwave coupling to a resonant cavity |
Oct. 11, 2005 |
| 6922061 |
Method of detecting foreign bodies in mass streams |
Jul. 26, 2005 |
| 6879166 |
Microwave measurement of phase equilibria |
Apr. 12, 2005 |
| 6864690 |
Apparatus for precision measurement of microwave material properties as functions of temperature and frequency |
Mar. 8, 2005 |
| 6837122 |
Device and method for detecting the mass and the moisture content for spinning preparation machines |
Jan. 4, 2005 |
| 6776261 |
Lubricant monitoring system |
Aug. 17, 2004 |
| 6771080 |
Microwave measuring device for defining the load of a two-phase flow |
Aug. 3, 2004 |
| 6747460 |
Microwave-resonator and measuring device |
Jun. 8, 2004 |
| 6710750 |
Microwave sensor antenna |
Mar. 23, 2004 |
| 6643594 |
Electromagnetic wave source probing device and probing method with the probing device |
Nov. 4, 2003 |
| 6605949 |
Quasi-hemispherical fabry-perot resonator and method of operating the same |
Aug. 12, 2003 |
| 6586946 |
System and method for detecting and identifying molecular events in a test sample using a resonant test structure |
Jul. 1, 2003 |
| 6559656 |
Permittivity measurement of thin films |
May. 6, 2003 |
| 6496018 |
Method and device for measuring dielectric constant |
Dec. 17, 2002 |
| 6476619 |
METHOD AND DEVICE FOR HIGHLY ACCURATE, HIGH SPEED, REAL TIME, CONTINUOUS OR STATIONARY, IN-LINE, NON-INVASIVE, THREE DIMENSIONAL, MULTI-SLICE AND CALCULATIONS OF HOMOGENEOUS OR NON-HOMOGENEOUS |
Nov. 5, 2002 |
| 6470282 |
Electromagnetic wave source probing device and probing method with the probing device |
Oct. 22, 2002 |
| 6407555 |
Process and instrument for moisture measurement |
Jun. 18, 2002 |
| 6375875 |
Diagnostic monitor for carbon fiber processing |
Apr. 23, 2002 |
| 6369585 |
System and method for tuning a resonant structure |
Apr. 9, 2002 |
| 6359445 |
Microwave sensor for determining position for displacement of a movable part, such as a valve needle |
Mar. 19, 2002 |
| 6339335 |
Method and device for determining the quantity of product contained in a reservoir, for example in an ink reservoir for a printer |
Jan. 15, 2002 |
| 6329824 |
Method of measuring resonant frequency of a resonator and coupling degree of two resonators |
Dec. 11, 2001 |
| 6255831 |
Millimeter wave measurement process |
Jul. 3, 2001 |
| 6225812 |
Method and apparatus for measuring the density of a substance having free water compensation |
May. 1, 2001 |
| 6204670 |
Process and instrument for moisture measurement |
Mar. 20, 2001 |
| 6184694 |
Portable paint thickness gauge for composite materials using resonant cavities at x-band |
Feb. 6, 2001 |
| 6147502 |
Method and apparatus for measuring butterfat and protein content using microwave absorption techniques |
Nov. 14, 2000 |
| 6049211 |
Method and apparatus for determination of fiber orientation in paper or paperboard web |
Apr. 11, 2000 |
| 5977780 |
Moisture and density sensor |
Nov. 2, 1999 |
| 5949237 |
Microwave cavity resonator for continuous spectroscopic gas analysis |
Sep. 7, 1999 |
| 5869958 |
Method of and apparatus for determining a response characteristic |
Feb. 9, 1999 |
| 5864239 |
Apparatus for measuring a powder mass flow |
Jan. 26, 1999 |
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