Method and apparatus for monitoring vacuum degree of vacuum...

Details Method and apparatus for monitoring vacuum degree of vacuum... Method and apparatus for monitoring vacuum degree of vacuum...

2005-10-04

2005-10-04

Le, N. (Department: 2858)

Electricity: measuring and testing

Using ionization effects

For monitoring pressure

Reexamination Certificate

active

06952102

ABSTRACT:
Detection of degradation of the degree of vacuum in a vacuum interrupter suffers from poor sensibility because of mixed presence of various noises other than that due to discharge resulting from degradationThe present invention allows accurate detection of degradation of the degree of vacuum by detecting the continuity of discharge produced between an electrode and a shield due to degradation of the degree of vacuum and the duration of discharge. The continuity of discharge is detected in accordance with a time slightly longer than 1 cycle time of a power-source voltage, and the duration of discharge is detected in accordance with a time sufficiently longer than 1 cycle time.

REFERENCES:
patent: 4547769 (1985-10-01), Tanigaki et al.
patent: 58-93128 (1983-06-01), None
patent: 58-94727 (1983-06-01), None
patent: 59-8225 (1984-01-01), None
patent: 63-49845 (1988-10-01), None
patent: 63-264833 (1988-11-01), None
patent: 64-76630 (1989-03-01), None
patent: 2-44624 (1990-02-01), None
patent: 3-3327 (1991-01-01), None
patent: 3-3328 (1991-01-01), None

Affiliated with

Also associated with

Rating

Method and apparatus for monitoring vacuum degree of vacuum... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for monitoring vacuum degree of vacuum..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for monitoring vacuum degree of vacuum... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3474756