Telemetry power carrier pulse encoder

Details Telemetry power carrier pulse encoder Telemetry power carrier pulse encoder

1990-05-29

1992-09-01

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

Using a particular modulation

34087031, 34087038, 332174, G08C 1916

Patent

active

051442990

ABSTRACT:
A telemetry system for use in controlling the operation of sensors configured on a rotating blade of a gas turbine engine includes an oscillator for generating a power carrier signal. A mechanism is included for providing command signals that select a mode of operation of the sensors and a telemetry encoder apparatus is used to generate encoder signals for modulating the power carrier signal in accordance with the selected mode of sensor operation. Also included in the present telemetry system is a programmable switch receiving the power carrier signal for modulating the power carrier signal amplitude in accordance with the encoder signals. A resistor shunts the programmable switching mechanism, and a coil transmits the modulated power carrier signal to a transceiver positioned on the turbine blade providing control signals to the sensor and transmitting sensor information to a receiver coil off of the turbine blade.

REFERENCES:
patent: 3713124 (1973-01-01), Durland et al
patent: 3922490 (1975-11-01), Pettis
patent: 4668950 (1987-05-01), Russell, Jr. et al.

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