Electric lamp and discharge devices: systems – Current and/or voltage regulation – Automatic regulation
Patent
1978-01-25
1979-12-04
LaRoche, Eugene R.
Electric lamp and discharge devices: systems
Current and/or voltage regulation
Automatic regulation
250409, 315106, H05G 134
Patent
active
041774060
ABSTRACT:
Filament current values associated with different X-ray tube anode currents and voltages are stored in various locations of a memory. For an X-ray exposure, the measured value of filament current or anode current is compared with the values stored and the values stored are connected, if necessary. Variations of the emission characteristics of the X-ray tubes as caused, for example, by aging are thus automatically corrected.
REFERENCES:
patent: 3521067 (1970-07-01), Splain
patent: 3974387 (1976-08-01), Bronner et al.
patent: 4072865 (1978-02-01), Craig et al.
Hermeyer Bernd
Ochmann Rudolf
Briody Thomas A.
Connors, Jr. Edward J.
Haken Jack E.
LaRoche Eugene R.
U.S. Philips Corporation
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