Circuit arrangement for the transmission of measurement value si

Details Circuit arrangement for the transmission of measurement value si Circuit arrangement for the transmission of measurement value si

1977-08-19

1983-12-13

Groody, James J.

Communications: electrical

Continuously variable indicating

Frequency variation

34087039, 34087042, G08C 1912, G08C 1900, G08C 2502

Patent

active

044207530

ABSTRACT:
A circuit arrangement for transmitting signals from a measuring transducer via a two-wire circuit to a receiver which, in turn, via the same two-wire circuit supplies power for operating the transducer. The circuit arrangement comprises a voltage controller, a current switch a current generator, and a power-storage capacitor connected at the transducer end of the two-wire line. The voltage controller supplies the voltage from the two-wire circuit to the measuring transducer as a regulated voltage. Parallel to this the current switch charges the power storage capacitor in the rhythm of the frequency-analog measurement signal. Via the current generator, e.g. an ohmic resistor, the capacitor also receives the voltage input from the measuring transducer. The operating current of the measuring transducer is thus provided partly by the voltage controller and partly by the current generator or resistor. The ratio of these currents determines the modulation depth of the current pulses on the two-wire circuit.

REFERENCES:
patent: 3387266 (1968-06-01), Swartwout et al.
patent: 3503261 (1970-03-01), Riester et al.
patent: 3560948 (1971-02-01), Inose et al.
patent: 3680384 (1972-08-01), Grindheim
patent: 3717858 (1973-02-01), Hadden
patent: 3742473 (1973-06-01), Hadden
patent: 3898554 (1975-08-01), Knudsen

Affiliated with

Also associated with

Rating

Circuit arrangement for the transmission of measurement value si does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit arrangement for the transmission of measurement value si, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit arrangement for the transmission of measurement value si will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-806227