Current loop control circuit for a time of flight ranging...

Details Current loop control circuit for a time of flight ranging... Current loop control circuit for a time of flight ranging...

2005-08-16

2005-08-16

Pihulic, Daniel (Department: 3662)

Communications, electrical: acoustic wave systems and devices

Echo systems

Distance or direction finding

Reexamination Certificate

active

06930956

ABSTRACT:
A current loop control circuit for a process variable transmitter coupled to a receiver at a remote location through a two-conductor current loop. The current loop control circuit efficiently utilizes the current in the loop to produce an optimal voltage and current for the operation of the process variable measurement transmitter.

REFERENCES:
patent: 5416723 (1995-05-01), Zyl
patent: 6140940 (2000-10-01), Klofer et al.
patent: 2416341 (2003-07-01), None

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