Real-time magnetic-flux breakthrough detection method and system

Details Real-time magnetic-flux breakthrough detection method and system Real-time magnetic-flux breakthrough detection method and system

1990-07-23

1991-05-07

Reynolds, Bruce A.

Electric heating

Metal heating

By arc

21912162, 21912178, B23K 2602

Patent

active

050138863

ABSTRACT:
Detection of the breakthrough of a laser beam through a workpiece wall uses one or more magnetic field pick-up coils. The coils are disposed on the drill side (side upon which the laser beam is impinging) of the workpiece. The coils sense the magnetic fields generated in the ionized plasma of particles escaping from the impact of the laser on the surface. The coils are connected to a breakthrough detector which generates a breakthrough signal upon the plasma and associated magnetic fields disappearing at breakthrough. The breakthrough signal is used to turn off the laser and/or change the application point at which the laser beam strikes the workpiece.

REFERENCES:
patent: 4473737 (1984-09-01), Anthony
patent: 4504727 (1985-03-01), Melcher et al.
patent: 4608480 (1986-08-01), Bizot et al.
patent: 4633058 (1986-12-01), Jones
patent: 4689467 (1987-08-01), Inoue
patent: 4764655 (1988-08-01), Ortiz, Jr. et al.
patent: 4789770 (1988-12-01), Kasner et al.
patent: 4818841 (1989-04-01), Silva et al.
patent: 4873414 (1989-10-01), Ma et al.
patent: 4939336 (1990-07-01), Meyer et al.

Affiliated with

Also associated with

Rating

Real-time magnetic-flux breakthrough detection method and system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Real-time magnetic-flux breakthrough detection method and system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Real-time magnetic-flux breakthrough detection method and system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-940918