Apparatus and method for measuring chlorine content of a solution
AssigneeProcess Instruments (UK) Ltd.
InventorsCraig Stracey, Mike Riding
Life of this patent
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Abstract
An apparatus measures chlorine content of a solution. The apparatus comprises a colorimeter configured to measure the chlorine content and output a first signal; an electrochemical sensor configured to measure the chlorine content and output a second signal; and a processing system configured to receive the first signal and the second signal and output a measurement of the chlorine content using at least one of the first signal and the second signal.
Claims13
An apparatus for measuring chlorine content of a solution, the apparatus comprising:
- a colorimeter configured to measure the chlorine content and output a first signal;
- an electrochemical sensor configured to measure the chlorine content and output a second signal;
- and
- a processing system configured to receive the first signal and the second signal and output a measurement of the chlorine content using at least one of the first signal and the second signal;
- and
- a housing enclosing both the colorimeter and the electrochemical sensor;
- wherein the processing system is configured to output one measurement value using the first signal and the second signal,
- wherein the processing system is configured to calibrate the second signal using the first signal.
An apparatus for measuring chlorine content of a solution, the apparatus comprising:
- a colorimeter configured to measure the chlorine content and output a first signal;
- an electrochemical sensor configured to measure the chlorine content and output a second signal;
- and
- a processing system configured to receive the first signal and the second signal and output a measurement of the chlorine content using at least one of the first signal and the second signal;
- and
- a housing enclosing both the colorimeter and the electrochemical sensor;
- wherein the processing system is configured to output one measurement value using the first signal and the second signal,
- wherein the processing system is configured to calibrate the second signal using the first signal;
- wherein the first signal and the second signal are measured simultaneously.
An apparatus for measuring chlorine content of a solution, the apparatus comprising:
- a colorimeter configured to measure the chlorine content and output a first signal;
- an electrochemical sensor configured to measure the chlorine content and output a second signal;
- and
- a processing system configured to receive the first signal and the second signal and output a measurement of the chlorine content using at least one of the first signal and the second signal;
- and
- a housing enclosing both the colorimeter and the electrochemical sensor;
- wherein the processing system is configured to output one measurement value using the first signal and the second signal,
- wherein the processing system is configured to calibrate the second signal using the first signal;
- wherein the first signal and the second signal are measured at non-coinciding times.
An apparatus for measuring chlorine content of a solution, the apparatus comprising:
- a colorimeter configured to measure the chlorine content and output a first signal;
- an electrochemical sensor configured to measure the chlorine content and output a second signal;
- and
- a processing system configured to receive the first signal and the second signal and output a measurement of the chlorine content using at least one of the first signal and the second signal;
- and
- a housing enclosing both the colorimeter and the electrochemical sensor;
- wherein the processing system is configured to output one measurement value using the first signal and the second signal,
- wherein the processing system is configured to calibrate the second signal using the first signal;
- wherein the first signal is measured less frequently than the second signal.
A method of measuring chlorine content of a solution, the method comprising:
- measuring, by a colorimeter, the chlorine content and outputting a first signal;
- measuring, by an electrochemical sensor, the chlorine content and outputting a second signal;
- and
- receiving, by a processing system, the first signal and the second signal and outputting one measurement value of the chlorine content using the first signal and the second signal;
- and
- calibrating the second signal using the first signal;
- wherein both the colorimeter and the electrochemical sensor are enclosed in a housing.
Dependencies are inferred from the claim text.