Method for detecting the optimal melt temperature in the single-

Details Method for detecting the optimal melt temperature in the single- Method for detecting the optimal melt temperature in the single-

1996-12-11

1999-03-23

Tung, Bryan

Television

Special applications

Manufacturing

348 87, H04N 718

Patent

active

058867376

ABSTRACT:
A method for precisely detecting the optimal temperature of the melt in a furnace center for necking step without using a radiation thermometer and two-color thermometer is disclosed. The invention observes a meniscus ring portion at the interface of a seed in a crucible and the melt surface by TV camera. Double rings of high lightness are examined through the image taken by the camera, and in the same time, the variation of temperature can be detected by the number of peaks in each scanning line in a picture of the TV screen.

REFERENCES:
patent: 3777169 (1973-12-01), Walter et al.
patent: 4184907 (1980-01-01), Yates
patent: 4185076 (1980-01-01), Hatch et al.
patent: 4277441 (1981-07-01), Sachs
patent: 5139412 (1992-08-01), Kychakoff et al.

Affiliated with

Also associated with

Rating

Method for detecting the optimal melt temperature in the single- 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 for detecting the optimal melt temperature in the single-, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for detecting the optimal melt temperature in the single- will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2131404