Digital method for the measurement and control of liquid level i

Details Digital method for the measurement and control of liquid level i Digital method for the measurement and control of liquid level i

1983-03-31

1986-02-25

Krass, Errol A

Boots, shoes, and leggings

73295, 164449, 364557, G01F 2300, B22C 1904

Patent

active

045731284

ABSTRACT:
A method is provided for measuring and controlling the level of an elevated temperature liquid in a container. The method includes converting electrical voltage signals from temperature sensing means spaced along a wall of the container to digital form. The converted signals are periodically scanned in elevation sequence. From the scanned signals the location is determined of the uppermost sensing means having a signal value of sufficient magnitude to lie below the liquid level. A fraction, F, of the spacing between that sensing means and the next above sensing means is calculated at which the measured liquid level lies. The fraction determined is a function of the converted signal value, Sn-1, a converted signal value, Se, at an estimated location of the liquid level and, So, a converted signal value sufficient to cause the fraction, F, to be at or near zero in value immediately prior to imminent changes in the location of the uppermost sensing means determined to lie below the liquid level.

REFERENCES:
patent: 3204460 (1965-09-01), Milnes
patent: 3399568 (1968-09-01), Wilson
patent: 3864973 (1975-02-01), Petry
patent: 3921697 (1975-11-01), Petry
patent: 3946795 (1976-03-01), Bruderer et al.
patent: 4066114 (1978-01-01), Dorr et al.
patent: 4126041 (1978-11-01), Doi et al.
patent: 4306610 (1981-12-01), Ahmed
patent: 4425795 (1984-01-01), Albrecht et al.
patent: 4449404 (1984-05-01), Bohme et al.
patent: 4466282 (1984-08-01), Kuhnel

Affiliated with

Also associated with

Rating

Digital method for the measurement and control of liquid level i does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital method for the measurement and control of liquid level i, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital method for the measurement and control of liquid level i will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1015171