Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1993-04-26
1994-07-19
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
250575, G01N 1506
Patent
active
053311779
ABSTRACT:
A turbidity sensor is provided with a light source and a plurality of light sensitive components which are disposed proximate a conduit to measure the light intensity directly across the conduit from the light source and at an angle therefrom. The conduit is provided with a plurality of protrusions extending radially inward from the walls of the conduit to discourage the passage of air bubbles through the light beam of the sensor. The direct light beam and scattered light are compared to form a relationship that is indicative of the turbidity of the liquid passing through the conduit. The rate of change of turbidity is provided as a monitored variable.
REFERENCES:
patent: 4193692 (1980-03-01), Wynn
patent: 4619530 (1986-10-01), Meserol et al.
patent: 4659218 (1987-04-01), de Lasa et al.
patent: 4906101 (1990-03-01), Lin et al.
patent: 4999514 (1991-03-01), Silveston
patent: 5048139 (1991-09-01), Matsumi
patent: 5059811 (1991-10-01), King et al.
patent: 5099123 (1992-03-01), Harjunmaa
patent: 5104228 (1992-04-01), Baillie
patent: 5140168 (1992-08-01), King
patent: 5163202 (1992-11-01), Kawakami et al.
patent: 5164604 (1992-11-01), Blair et al.
Article-May, 1993 issue of Sensors Magazine entitled ".SIGMA.-.DELTA. Modulator Interfacing With Silicon Microsensors".
Article from Jul. 1993 Sensors Magazine entitled "A New RISC-Based Data Acquisition System".
Catalog Reproduction from Crystal Semiconductor Corp. Jan. 1989, AN10REV1.
Kubisiak David
Wilson Mark L.
Honeywell Inc.
Lanyi William D.
Nelms David C.
Shami K.
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