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Class Information
Number: 324/650
Name: Electricity: measuring and testing > Impedance, admittance or other quantities representative of electrical stimulus/response relationships > Lumped type parameters > Using phasor or vector analysis
Description: Subject matter including utilization of a quantity that has both magnitude and direction.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7592818 |
Method and apparatus for measuring scattering coefficient of device under test |
Sep. 22, 2009 |
| 7545151 |
Characterizing test fixtures |
Jun. 9, 2009 |
| 7532991 |
Magnetic data processing device |
May. 12, 2009 |
| 7518353 |
Vector network analysis system and method using offset stimulus signals |
Apr. 14, 2009 |
| 7469547 |
Arrangement for detecting the position of a damper blade using a wireless communication sensor |
Dec. 30, 2008 |
| 7405576 |
Method and apparatus for measuring high-frequency electrical characteristics of electronic device, and method for calibrating apparatus for measuring high-frequency electrical characteristics |
Jul. 29, 2008 |
| 7375534 |
Method and apparatus for measuring high-frequency electrical characteristics of electronic device, and method for calibrating apparatus for measuring high-frequency electrical characteristics |
May. 20, 2008 |
| 7348784 |
Error factor acquisition device, method, program, and recording medium |
Mar. 25, 2008 |
| 7157918 |
Method and system for calibrating a measurement device path and for measuring a device under test in the calibrated measurement device path |
Jan. 2, 2007 |
| 7148702 |
VNA and method for addressing transmission line effects in VNA measurement data |
Dec. 12, 2006 |
| 7107162 |
Determining an operational limit of a power transmission line |
Sep. 12, 2006 |
| 7088110 |
System and method for determining S-parameters of a connected structure |
Aug. 8, 2006 |
| 7088111 |
Enhanced isolation level between sampling channels in a vector network analyzer |
Aug. 8, 2006 |
| 7061221 |
Reduced complexity transmission line and waveguide fault tester |
Jun. 13, 2006 |
| 7034548 |
Balanced device characterization including test system calibration |
Apr. 25, 2006 |
| 7030627 |
Wideband complex radio frequency impedance measurement |
Apr. 18, 2006 |
| 7005918 |
Current-to-voltage converting apparatus and impedance measuring apparatus |
Feb. 28, 2006 |
| 6970002 |
Tube measurement and calibration system |
Nov. 29, 2005 |
| 6956380 |
Narrow-band amplifier and impedance-measuring apparatus |
Oct. 18, 2005 |
| 6863564 |
Coaxial radio frequency adapter and method |
Mar. 8, 2005 |
| 6816825 |
Simulation vector generation from HDL descriptions for observability-enhanced statement coverage |
Nov. 9, 2004 |
| 6760633 |
Method and apparatus for predicting stability of a closed loop apparatus |
Jul. 6, 2004 |
| 6512383 |
System for measuring the alternating current equivalent series resistance of a conductor |
Jan. 28, 2003 |
| 6483501 |
Load current compensated type voltage sampling circuit |
Nov. 19, 2002 |
| 6396287 |
Process for measuring output harmonic relative to output fundamental with enhanced accuracy |
May. 28, 2002 |
| 6392422 |
Monitoring insulation and fault current in an A/C current network to provide load shutoff whenever differential current exceeds a certain response value |
May. 21, 2002 |
| 6385547 |
Automatic monitoring of high voltage signals |
May. 7, 2002 |
| 6348804 |
Vector network analyzer |
Feb. 19, 2002 |
| 6329808 |
Method and system for the detection, by inductive coupling, of a load modulation signal |
Dec. 11, 2001 |
| 6316945 |
Process for harmonic measurement accuracy enhancement |
Nov. 13, 2001 |
| 6259259 |
Method and apparatus for automatically adjusting the measurement range of admittance level sensors |
Jul. 10, 2001 |
| 6054867 |
Method for stabilizing feedback loop of impedance measuring apparatus |
Apr. 25, 2000 |
| 6023170 |
Method for determining the degree of hardening of a material |
Feb. 8, 2000 |
| 6005398 |
High speed phase and amplitude measurement system and method |
Dec. 21, 1999 |
| 5977779 |
Handheld vecor network analyzer (VNA) operating at a high frequency by mixing LO and RF signals having offset odd harmonics |
Nov. 2, 1999 |
| 5717336 |
Method and apparatus for determining the charge condition of an electrochemical cell |
Feb. 10, 1998 |
| 5715183 |
Internal automatic calibrator for vector network analyzers |
Feb. 3, 1998 |
| 5703490 |
Circuit and method for measuring current in an H-bridge drive network |
Dec. 30, 1997 |
| 5621332 |
Device and method for identifying and quantifying layered substances |
Apr. 15, 1997 |
| 5612601 |
Method for assessing motor insulation on operating motors |
Mar. 18, 1997 |
| 5559439 |
Method and device for measuring the compensation tuning and detuning of an electrical distribution network |
Sep. 24, 1996 |
| 5552714 |
Electronic calibration method and apparatus |
Sep. 3, 1996 |
| 5548538 |
Internal automatic calibrator for vector network analyzers |
Aug. 20, 1996 |
| 5519325 |
Measuring apparatus for a passive element value using a current vector |
May. 21, 1996 |
| 5467021 |
Calibration method and apparatus |
Nov. 14, 1995 |
| 5463323 |
Impedance meter |
Oct. 31, 1995 |
| 5386194 |
Digital impedance determination using peak detection of current and voltage samplers |
Jan. 31, 1995 |
| 5365179 |
Apparatus and method for measuring ground impedance |
Nov. 15, 1994 |
| 5309110 |
Differential dielectric analyzer |
May. 3, 1994 |
| 5302906 |
Method and arrangement for determining a load angle of a generator which is connected to an electrical supply network |
Apr. 12, 1994 |
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