Imperforate bowl: centrifugal separators – Process
Patent
1984-01-13
1985-12-10
Jenkins, Robert W.
Imperforate bowl: centrifugal separators
Process
494 3, B04B 1104
Patent
active
045577196
ABSTRACT:
A plurality of scanning regions (22) are disposed about the anticipated region of a phase boundary (32) of two media. The change in position of the phase boundary (32) is detected by a scanning means (18) with which each scanning region (22) is scanned and a signal is generated for each of the scanning regions (22). The first media is more radiation-permeable than the second media. A beam path is generated by the scanning means and is detected and evaluated by a discriminator circuit as a logic one. The second media is less radiation-permeable than the first media. The absence of a beam path corresponding to scanning regions in the second media is evaluated by the discriminator circuit as a logic zero. The number of signals per measuring cycle is compared against the actual number of scanning regions (22) to locate and control the position of the phase boundary (32).
REFERENCES:
patent: 3391597 (1968-07-01), Gropper
patent: 3480207 (1969-11-01), Strohmaier
patent: 3778171 (1973-12-01), Cherrenka
patent: 3955755 (1976-05-01), Breillatt, Jr. et al.
patent: 3957197 (1976-05-01), Sartory
patent: 3982162 (1976-09-01), Olliffe
patent: 4132349 (1979-01-01), Khoja et al.
patent: 4279862 (1981-07-01), Bretaudiere et al.
Meisberger Artur
Neumann Hans-Jurgen
Dahlberg Arthur D.
Fresenius AG
Jenkins Robert W.
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