Continuous whole-home water quality analyzer
AssigneeNotation Labs, Inc.
InventorDavid A. Daniel
Life of this patent
Estimating the term…
Abstract
A fluid quality detector for measuring total dissolved solids such as in water system of a home. The detector includes a body configured to communicate a fluid between an inlet and an outlet, and a probe having a pair of electrodes configured to communicate with the fluid. A circuit is coupled to the probe and configured to determine quality of the fluid as it communicates between the inlet and the outlet. The circuit is configured to apply a voltage waveform between the two electrodes to the fluid and switch a voltage polarity of the voltage waveform to reverse voltage polarity at the electrodes and reduce ions from migrating between the electrodes.
Claims15
A fluid quality detector, comprising:
- a body configured to communicate a fluid between an inlet and an outlet, wherein the body is not grounded;
- a probe having a pair of electrodes configured to communicate with the fluid;
- a circuit coupled to the probe and configured to determine a quality of the fluid as it communicates between the inlet and the outlet using solely a single sensor channel that is configured to calculate both a voltage across the electrodes and also a voltage that correlates to a current measurement, wherein the circuit is configured to:
- apply a voltage waveform between the two electrodes to the fluid, wherein the voltage waveform has a frequency 1000 hertz or above configured to prevent ions from migrating between the electrodes;
- switch a voltage polarity of the voltage waveform to reverse voltage polarity at the electrodes and reduce ions from migrating between the electrodes;
- wherein the circuit is configured to determine the fluid quality by measuring total dispersed solids (TDS) from electrical conductivity (EC) between the electrodes using solely the single sensing channel while switching the voltage polarity of the voltage waveform.
A fluid quality detector, comprising:
- a body configured to communicate a fluid between an inlet and an outlet, wherein the body is not grounded;
- a probe having a pair of electrodes configured to communicate with the fluid;
- a circuit coupled to the probe and configured to determine a quality of the fluid as it communicates between the inlet and the outlet using solely a single sensor channel that is configured to calculate both a voltage across the electrodes and also a voltage that correlates to a current measurement, wherein the circuit is configured to:
- apply a voltage waveform between the two electrodes to the fluid, wherein the voltage waveform has a frequency 1000 hertz or above to prevent ions from migrating between the electrodes;
- determine electrical conductivity (EC) between the electrodes;
- and
- determine the fluid quality by determining total dispersed solids (TDS) based on the determined EC between the electrodes, wherein the circuit determines the fluid quality by measuring total dispersed solids (TDS) from electrical conductivity (EC) between the electrodes using solely the single sensing channel while switching the voltage polarity of the voltage waveform.
Dependencies are inferred from the claim text.