| 摘要 |
PCT No. PCT/EP94/00533 Sec. 371 Date Sep. 13, 1995 Sec. 102(e) Date Sep. 13, 1995 PCT Filed Feb. 25, 1994 PCT Pub. No. WO94/21993 PCT Pub. Date Sep. 29, 1994The invention relates to a process for operating a regulated heat conduction vacuum gauge with a Wheatstone bridge (1) powered by a controllable supply voltage and a gauge filament (6) and a resistance (9) as two of its components among others, designed to be temperature-dependant to compensate for interference effects of the ambient temperature on the gauge filament (6) and to a suitable circuit for implementing this process; it is proposed, in order to improve and simplify the temperature compensation, that, by linking various electrical measurements of the bridge (1) or by equivalent approximation systems, the value or the temperature of the temperature-dependant resistance (9) be found and taken into account in determining the pressure measurements (drawing FIG. 2).
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