Sensor with memory storing calibration information
AssigneeDigital Concepts of Missouri, Inc.
InventorsJack Greenwood, Christopher Seay Green, Kenneth W. Law
Life of this patent
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Abstract
A sensor is configured to sense a parameter of an aqueous liquid. The sensor has an analog output port configured to provide an analog signal indicative of a sensed parameter, and a calibration memory device storing individual digital information indicative of a calibration of the sensor. A digital output port provides a digital signal indicative of the digital information. A treatment system and method is matched to the sensor.
Claims10
A treatment system for treating an aqueous liquid comprising:
- a conduit for channeling the aqueous liquid to be treated;
- a treatment device in fluid communication with the conduit, the treatment device configured to supply one or more treatments to the aqueous liquid via the conduit for altering the aqueous liquid and having an input port for receiving a treatment signal indicative of an extent to which the treatment device alters the aqueous liquid;
- a sensor sensing a first parameter of the aqueous liquid and having an analog output port providing a first analog signal indicative of the sensed first parameter, said sensor sensing a second parameter of the aqueous liquid and providing a second analog signal at the analog output port indicative of the sensed second parameter, said sensor having a calibration memory device storing digital information, said digital information stored in the calibration memory device indicative of a calibration of the first parameter relative to the second parameter, and said sensor having a digital output port providing a digital signal indicative of the digital information stored in the calibration memory device;
- and
- a controller having a digital input port connected to the digital output port of the sensor, said controller receiving the digital signal from the sensor via the digital input port and determining a calibration of the sensor in response to the received digital signal,
- said controller having an analog input port connected to the analog output port of the sensor, said controller receiving the first and second analog signals via the analog input port and determining an adjusted first parameter of the aqueous liquid relative to the second parameter based on the received analog signals and based on the calibration of the sensor,
- said controller having an output port connected to the treatment device providing the treatment signal to the input port of the treatment device, said treatment device responsive to the treatment signal and configured to control the extent to which the treatment device alters the aqueous liquid as a function of the determined adjusted first parameter.
A sensing device comprising a sensor configured to sense a first parameter and a second parameter of a liquid and having an analog output port configured to provide a first analog signal indicative of the sensed first parameter and configured to provide a second analog signal indicative of the sensed second parameter, said sensor having a calibration memory device storing individualized digital information specific to the calibration memory, said individualized digital information stored in the calibration memory device indicative of a calibration of the first parameter relative to the second parameter, and said sensor having a digital output port providing a digital signal indicative of the individualized digital information stored in the calibration memory device.
Dependencies are inferred from the claim text.