Apparatus for measuring a higher concentration of fluorescent materials in a liquid
First Claim
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1. An apparatus for measuring amounts of light-to-medium crude oil in water, the apparatus comprising:
- a measurement chamber comprising a measurement window, wherein an excitation signal having wavelength greater than 400 nm is transmitted through the measurement window toward a target point to measure a concentration of the light-to-medium crude oil in the water, wherein fluorescent light is detected from the target point through the measurement window, and wherein paths travelled by the excitation signal and the fluorescent light lie in a common plane that is not perpendicular with an inner surface of the measurement window;
a light source for generating the excitation signal;
a detector for receiving the fluorescent light;
an ultrasonic transducer comprising a transducer mass coupled to the measurement chamber and the measurement window;
a source of power for the apparatus;
controls including an ultrasonic transducer control for the ultrasonic transducer and a signal processing/conditioning unit for the fluorescent light, wherein the controls determine, from the fluorescent light, an amount of the light-to-medium crude oil in the water at the target point;
a single channel through the ultrasonic transducer terminating adjacent an outside surface of the measurement window; and
optics within the single channel, the optics including a transmitting fiber optic end for delivering the excitation signal to the target point and a receiving fiber optic end for receiving the fluorescent light from the target point, wherein the transmitting fiber optic end is parallel and adjacent to the receiving fiber optic end.
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Abstract
An apparatus for measuring oil in water for larger parts per million (ppm) of light-to-medium weight crude oils shown. The excitation signal and the fluorescent light being detected are provided and received through a single channel within the ultrasonic transducer. The target area for measuring the ppm'"'"'s of oil in water is located just inside of the measurement window to prevent interference by turbidity or other oil droplets within the fluid stream. The angle between the excitation signal and the fluorescent light as transmitted and received from the single channel is very small.
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Citations
6 Claims
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1. An apparatus for measuring amounts of light-to-medium crude oil in water, the apparatus comprising:
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a measurement chamber comprising a measurement window, wherein an excitation signal having wavelength greater than 400 nm is transmitted through the measurement window toward a target point to measure a concentration of the light-to-medium crude oil in the water, wherein fluorescent light is detected from the target point through the measurement window, and wherein paths travelled by the excitation signal and the fluorescent light lie in a common plane that is not perpendicular with an inner surface of the measurement window; a light source for generating the excitation signal; a detector for receiving the fluorescent light; an ultrasonic transducer comprising a transducer mass coupled to the measurement chamber and the measurement window; a source of power for the apparatus; controls including an ultrasonic transducer control for the ultrasonic transducer and a signal processing/conditioning unit for the fluorescent light, wherein the controls determine, from the fluorescent light, an amount of the light-to-medium crude oil in the water at the target point; a single channel through the ultrasonic transducer terminating adjacent an outside surface of the measurement window; and optics within the single channel, the optics including a transmitting fiber optic end for delivering the excitation signal to the target point and a receiving fiber optic end for receiving the fluorescent light from the target point, wherein the transmitting fiber optic end is parallel and adjacent to the receiving fiber optic end. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification
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Current AssigneeAdvanced Sensors Limited (Roper Technologies, Inc.)
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Original AssigneeAdvanced Sensors Limited (Roper Technologies, Inc.)
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InventorsSreekumar, Jeyan
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Primary Examiner(s)Porta, David
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Assistant Examiner(s)RIDDICK, BLAKE CUTLER
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Application NumberUS14/812,026Publication NumberTime in Patent Office1,084 DaysField of Search2504581, 2504611, 2502691, 250301, 250574, 250573US Class CurrentCPC Class CodesG01N 2021/6484 Optical fibresG01N 21/643 non-biological materialG01N 21/645 Specially adapted construct...G01N 29/00 Investigating or analysing ...G01N 33/2823 Raw oil, drilling fluid or ...
