Amperometric sensor system
First Claim
1. A method for quantifying two species in water, comprising:
- applying a first differential measurement potential between at least first and second electrodes of at least one sensor probe;
measuring a first output signal responsive to the concentration of a parameter of water to be measured and responsive to the first differential measurement potential;
applying a second differential measurement potential between the at least first and second electrodes of the at least one sensor probe, the second differential measurement potential being different from the first differential measurement potential;
measuring a second output signal responsive to the concentration of the parameter of water to be measured and responsive to the second differential measurement potential;
determining a ratio of the first output signal to the second output signal; and
determining which of the two species is present based on the ratio of the first output signal to the second output signal; and
calculating and quantifying the species present.
1 Assignment
0 Petitions
Accused Products
Abstract
A sensor system that measures at least one parameter of water includes an electronics subsystem and includes a sensor housing electrically and mechanically coupled to the electronics subsystem. The sensor housing encloses a chamber that receives water via at least one inlet and that releases water via at least one outlet. At least one sensor has at least one electrode exposed to water in the chamber. A flow generator causes water to flow through the chamber. A plurality of objects within the chamber move in response to the water flow and abrasively clean the at least one electrode. Preferably, the sensor system includes a chlorine sensor having at least two electrodes. The electronics subsystem applies a first differential voltage between the two electrodes during a measurement interval and then applies a second differential voltage between the two electrodes during an interval following the measurement interval.
-
Citations
3 Claims
-
1. A method for quantifying two species in water, comprising:
-
applying a first differential measurement potential between at least first and second electrodes of at least one sensor probe; measuring a first output signal responsive to the concentration of a parameter of water to be measured and responsive to the first differential measurement potential; applying a second differential measurement potential between the at least first and second electrodes of the at least one sensor probe, the second differential measurement potential being different from the first differential measurement potential; measuring a second output signal responsive to the concentration of the parameter of water to be measured and responsive to the second differential measurement potential; determining a ratio of the first output signal to the second output signal; and determining which of the two species is present based on the ratio of the first output signal to the second output signal; and calculating and quantifying the species present. - View Dependent Claims (2, 3)
-
Specification