Arrangement for the automatic heating and adjustment of a treatm

Details Arrangement for the automatic heating and adjustment of a treatm Arrangement for the automatic heating and adjustment of a treatm

1977-02-16

1978-12-19

Padgett, Benjamin R.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

307310, 307362, 323 19, B01K 100

Patent

active

041307623

ABSTRACT:
An apparatus for controlling the treatment temperature of a workpiece processed in a current intensive glow discharge container, comprises a differentiator for deriving at its output a time derivative of the actual treatment temperature in the glow discharge container, a comparator for generating a control value corresponding to the difference between the time derivative and a preset desired value, and a current regulator controlled by the control value at the output of the comparator.

REFERENCES:
patent: 2884511 (1959-04-01), Berghaus et al.
patent: 2916409 (1959-12-01), Bucek
patent: 3260892 (1966-07-01), Berghaus et al.
patent: 3389070 (1968-06-01), Berghaus et al.
patent: 3579029 (1971-05-01), Spescha et al.
patent: 3686557 (1972-08-01), Futamura

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