Inline fluidic measurement system
AssigneeAnalog Devices International Unlimited Company
InventorsClaire E. Leahy, Youri Victorovitch Ponomarev
Life of this patent
Estimating the term…
Abstract
A fluid sensor system and method of operating the fluid sensor system is disclosure herein. A fluid sensor device of the fluid sensor system can be connected with a treatment system in-line. The fluid sensor system may receive a second solution different from a first calibration fluid to use as a calibration fluid to reduce costs associated with storing calibration fluid inside the fluid sensor device prior to use with the treatment system.
Claims16
A method of calibrating a fluid sensor device connected in- line with a treatment system, the method comprising:
- providing a first calibration fluid stored in a calibration compartment to a sensing element,
- taking a first measurement of the first calibration fluid with the sensing element,
- providing a second calibration fluid from a second calibration fluid source,
- taking a second measurement of the second calibration fluid with the sensing element, and
- calibrating the sensing element using the second calibration fluid, wherein calibrating the sensing element comprises comparing a subsequent measurement of the second calibration fluid with a difference between the first measurement of the first calibration fluid and the second measurement of the second calibration fluid.
A fluid sensor system configured to take measurements of a sample fluid in-line with a treatment system, the fluid sensor system comprising:
- a fluid sensor device comprising:
- a sensing channel configured to receive a sample fluid from the treatment system;
- a first calibration compartment containing a first calibration fluid and in fluidic communication with the sensing channel;
- a second calibration compartment configured to receive a second calibration fluid from a second calibration fluid source, wherein the second calibration compartment is in fluidic communication with the sensing channel;
- a sensing element configured to interact with and transduce a property of a fluid in the sensing channel;
- and
- a processor configured to:
- determine a difference between a first measurement taken by the sensing element of the first calibration fluid and a second measurement taken by the sensing element of the second calibration fluid, and
- calibrate the sensing element based at least on subsequent measurement taken by the sensing element of the second calibration fluid and the determined difference.
A fluid sensor system configured to take measurements of a sample fluid in-line with a treatment system, the fluid sensor system comprising:
- a fluid sensor device comprising:
- a sensing channel configured to receive a sample fluid from the treatment system;
- a calibration compartment containing a first calibration fluid and in fluidic communication with the sensing channel, wherein the calibration compartment has a volume in a range of 5-100 microliters;
- a sensing element configured to interact with fluid in the sensing channel;
- one or more valves configured to selectively direct a second calibration fluid from the treatment system to the sensing channel and selectively direct the sample fluid from the treatment system to the sensing channel;
- and
- a processor configured to:
- determine a difference between a first measurement taken by the sensing element of the first calibration fluid and a second measurement taken by the sensing element of the second calibration fluid, and
- calibrate the sensing element based at least on subsequent measurement taken by the sensing element of the second calibration fluid and the determined difference.
Dependencies are inferred from the claim text.