Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Calibration
Patent
1995-07-19
1997-07-08
Wieder, Kenneth A.
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Calibration
324638, G01R 2700
Patent
active
056465360
ABSTRACT:
The purpose of a through calibration is to correct errors in transmission coefficients in both the forward and reverse directions between two measurement ports of a circuit network measurement device having many ports. If there are N measurement ports, error corrections of the transmission coefficients are necessary for all combinations of two measurement ports selected from N ports. The calibration method of this invention is one in which the calibration measurements are performed with n combinations, rather than all combinations, and calibration values for all combinations are obtained by calculation. The n combinations and their measurements may be performed by any combination that satisfies the following conditions: (A) there are triangular combinations of connected ports; (B) all of the other combinations of ports are linked with the triangular combination; and (C) in one combination among the triangular combinations, a measurement of the transmission coefficient in only one direction is sufficient.
REFERENCES:
patent: 4808912 (1989-02-01), Potter et al.
patent: 4816767 (1989-03-01), Cannon et al.
patent: 5321364 (1994-06-01), Nukiyama
patent: 5442296 (1995-08-01), Schiek et al.
HP 4380S--RF Balanced Cable Evaluation Test System Product Overview- Mar. 1995- Hewlett-Packard Company.
HP 8753C--Network Analyzer Operating Manual--Jan. 1992- Ref. Section, Appendix to Chapter 5- Hewlett-Packard Company.
A Dual 6-Port Network Analyer Cronson & Susman IEEE NTFS International Microwave Symposium May 1980.
A New Procedure for System Calibration and Error Removal Franzen et al. Microwave Conference Aug. 1975.
An Automated Broadband System for Measurement of One Port Microwave Parameters Kormak Jul. 1976.
Six Port Automatic Network Analyzer Cronson IEEE Transactions vol. MTT-25 No. 12 Dec. 1977.
Do Diep
Hewlett--Packard Company
Wieder Kenneth A.
LandOfFree
Method for calibrating circuit network measurement devices does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for calibrating circuit network measurement devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for calibrating circuit network measurement devices will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2410672