Magnetic parallel-to-serial converter for gas turbine engine par

Details Magnetic parallel-to-serial converter for gas turbine engine par Magnetic parallel-to-serial converter for gas turbine engine par

1978-03-03

1980-06-17

Robinson, Thomas A.

Multiplex communications

Wide area network

Packet switching

340347P, 370117, 364100, H04J 304, H03K 1300

Patent

active

042085500

ABSTRACT:
A converter is provided for transforming the parallel output of a remotely located gas turbine engine parameter sensor into serial form for transmission to an engine control unit. The converter is comprised of an interrogator which operates to sequentially interrogate a plurality of encoder magnetic cores which contain the sensed digital information. The interrogator is comprised of a plurality of magnetic elements, each of which is connected to a corresponding individual encoder magnetic core. The magnetic elements are normally maintained in a saturated state by two electrical current signals which are applied through appropriate biasing circuitry. The current signals and biasing circuitry also act to sequentially unsaturate individual magnetic elements. A high frequency excitation current is also applied to each of the magnetic elements. As each magnetic element unsaturates, an interrogation current generated by the excitation current is transmitted to a corresponding encoder magnetic core. A single output conductor is connected with all of the magnetic cores for transmitting the serial information to the control unit.

REFERENCES:
patent: 2951242 (1960-08-01), Fisher, Jr. et al.
patent: 3068464 (1962-12-01), Takahashi et al.
patent: 3090034 (1963-05-01), Fredericks et al.
patent: 3395250 (1968-07-01), Lien
patent: 3505659 (1970-04-01), Kelley et al.
patent: 3909811 (1975-09-01), Adler

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