Optical monitor for measuring a gap between two rollers

Details Optical monitor for measuring a gap between two rollers Optical monitor for measuring a gap between two rollers

1991-09-06

1994-05-31

Rosenberger, Richard A.

Optics: measuring and testing

By polarized light examination

With light attenuation

356381, 356384, 33657, 3350109, G01B 1100

Patent

active

053173864

ABSTRACT:
A gap measurement device includes a first roller and a second roller. The first roller and the second roller define a gap which varies due to thermal expansion and contraction of the rollers. A first optical probe measures a first distance to the first roller and generates a first-distance signal indicative of the first distance. A second optical probe measures a second distance to the second roller and generates a second-distance signal indicative of the second distance. An electronics module generates a gap-width signal indicative of the gap based on the first-distance signal and the second-distance signal. The invention can also measure roller velocity, roller runout, roller registration, and the thickness of liquid on a roller.

REFERENCES:
patent: 3419330 (1968-12-01), Schneider
patent: 3565531 (1971-02-01), Kane et al.
patent: 3792928 (1974-02-01), Poilleux
patent: 3792928 (1974-02-01), Poilleux
patent: 3940608 (1976-02-01), Kissinger et al.
patent: 3940608 (1976-02-01), Kissinger et al.
patent: 4009965 (1977-03-01), Pryor
patent: 4009965 (1977-03-01), Pryor
patent: 4009965 (1977-03-01), Pryor
patent: 4038555 (1977-07-01), Freeman
patent: 4053237 (1977-10-01), Casey
patent: 4131365 (1978-12-01), Pryor
patent: 4131365 (1978-12-01), Pryor
patent: 4178692 (1979-12-01), Schultz
patent: 4294305 (1981-10-01), Oda
patent: 4295278 (1981-10-01), Gloor
patent: 4344232 (1982-08-01), Kihlstrom
patent: 4357104 (1982-11-01), Davinson
patent: 4357104 (1982-11-01), Davinson
patent: 4358960 (1982-11-01), Porter
patent: 4358960 (1982-11-01), Porter
patent: 4489495 (1984-12-01), Scheinecker
patent: 4653905 (1987-03-01), Farrar et al.
patent: 4653905 (1987-03-01), Farrar et al.
patent: 4737035 (1988-04-01), Aoki et al.
patent: 4737035 (1988-04-01), Aoki et al.
patent: 4746211 (1988-05-01), Ruth et al.
patent: 4746211 (1988-05-01), Ruth et al.
patent: 4766323 (1988-08-01), Franklin et al.
patent: 4766323 (1988-08-01), Franklin et al.
patent: 4837615 (1989-06-01), Boshier
patent: 4915499 (1990-04-01), Gidon et al.
patent: 4915499 (1990-04-01), Gidon et al.
patent: 5162131 (1992-11-01), Rantanen et al.
Michael A. Marcus, "Process monitoring and control with fiber optics", SPIE, vol. 1368 Chemical, Biochemical, and Environmental Fiber Sensors II (1990), Eastman Kodak Company, Analytical Technology Divsion, Bldg. 23, Kodak Park, Rochester, N.Y. 14652-4201, pp. 191-202.

Affiliated with

Also associated with

Rating

Optical monitor for measuring a gap between two rollers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical monitor for measuring a gap between two rollers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical monitor for measuring a gap between two rollers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1631236