Magnetron with frequency sensor arrangement

Details Magnetron with frequency sensor arrangement Magnetron with frequency sensor arrangement

1986-02-14

1987-01-13

LaRoche, Eugene R.

Oscillators

With magnetically controlled space discharge device

With frequency adjustment

315 3961, 324175, H03B 910, H01J 2550

Patent

active

046367500

ABSTRACT:
In a magnetron a spinner (22), rotatable on a longitudinal axis (x) has a number of evenly spaced markings formed circumferentially on an exterior surface. The markings are sensed, as the spinner rotates, by a photo sensitive transistor (PT) coupled to window (26) in the vacuum envelope of the magnetron by a fiber optic pipe (FP1). The periodicity of pulses, generated by the transistor in response to movement of markings past the window, is divided in a network (43) to generate a succession of further pulses. The further pulses are then counted in circuit (44) and the instantaneous count compared with reference frequency values stored in memory (46) to generate an output signal O/P(1) related to the instantaneous magnetron frequency.

REFERENCES:
patent: 3440565 (1969-04-01), Scullin et al.
patent: 3811056 (1974-05-01), Baba et al.
patent: 4093853 (1978-06-01), Hunt
patent: 4123653 (1978-10-01), Borio
patent: 4387299 (1983-06-01), Akiyama
patent: 4506339 (1985-03-01), Kuhnlein

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