Tracking impedance measuring system

Details Tracking impedance measuring system Tracking impedance measuring system

1982-12-27

1985-03-19

Krawczewicz, Stanley T.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

324 58B, G01R 2922

Patent

active

045062099

ABSTRACT:
A tracking impedance measuring system for measuring the impedance between a signal source such as a radio transmitter and a load such as an antenna includes a directional coupler that obtains a sample of the forward voltage and the reflected voltage. A first discriminator takes the forward voltage samples and the reflected voltage samples and obtains from the sample analog signals that represent the reflected voltage, the forward voltage, and the phase angle between the two voltages. The first discriminator utilizes an injection signal that is provided by a second discriminator which tracks the signal from the signal source but is offset therefrom by a selected frequency.

REFERENCES:
patent: 3249863 (1966-05-01), Wright
patent: 3531722 (1970-09-01), Seibold
patent: 3704409 (1972-11-01), Oomen
patent: 4249258 (1981-02-01), Craven
patent: 4300092 (1981-11-01), Strenglein
patent: 4311972 (1982-01-01), Landt et al.

Affiliated with

Also associated with

Rating

Tracking impedance measuring system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tracking impedance measuring system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tracking impedance measuring system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-755240