Liquid concentration optical sensor
An improved optical concentration sensor is provided for use with continuous ink jet printers. The optical concentration sensor has an optical cell which can contain a fluid (30) to be tested, at least one light source (22) for passing light through the fluid, at least one light detector (26) for de...
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| creator | MUSSER, MARSHALL BOWERS, MARK C MULLINS, RANDAL L KING,TOBY SINCLAIR, GARY ROBERTS, JEFFREY L LARGE, TIMOTHY LOYD, JOHN C |
| description | An improved optical concentration sensor is provided for use with continuous ink jet printers. The optical concentration sensor has an optical cell which can contain a fluid (30) to be tested, at least one light source (22) for passing light through the fluid, at least one light detector (26) for detecting light transmitted through the fluid, and electronics for monitoring a first output from the light detector and providing a second output related to concentration of the fluid. Specifically, the improvement comprises curved inner surfaces of the optical cell walls (12a,12b) for producing at least one region with a narrow gap for transmission of light through the fluid and regions with wider gaps for more efficient flow of fluid through the cell. |
| format | Patent |
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The optical concentration sensor has an optical cell which can contain a fluid (30) to be tested, at least one light source (22) for passing light through the fluid, at least one light detector (26) for detecting light transmitted through the fluid, and electronics for monitoring a first output from the light detector and providing a second output related to concentration of the fluid. 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The optical concentration sensor has an optical cell which can contain a fluid (30) to be tested, at least one light source (22) for passing light through the fluid, at least one light detector (26) for detecting light transmitted through the fluid, and electronics for monitoring a first output from the light detector and providing a second output related to concentration of the fluid. 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The optical concentration sensor has an optical cell which can contain a fluid (30) to be tested, at least one light source (22) for passing light through the fluid, at least one light detector (26) for detecting light transmitted through the fluid, and electronics for monitoring a first output from the light detector and providing a second output related to concentration of the fluid. Specifically, the improvement comprises curved inner surfaces of the optical cell walls (12a,12b) for producing at least one region with a narrow gap for transmission of light through the fluid and regions with wider gaps for more efficient flow of fluid through the cell.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
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| subjects | CORRECTION OF TYPOGRAPHICAL ERRORS i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES LINING MACHINES MEASURING PERFORMING OPERATIONS PHYSICS PRINTING SELECTIVE PRINTING MECHANISMS STAMPS TESTING TRANSPORTING TYPEWRITERS |
| title | Liquid concentration optical sensor |
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