Urea concentration sensor
AssigneeLittelfuse, Inc.
InventorBrian Johnson
Life of this patent
Estimating the term…
Abstract
A sensor to measure a liquid. The sensor may include a light source operably coupled to a lumen disposed in a liquid solution, the light source configured to emit light and communicate the light to the lumen; a light detector operably coupled to the lumen, the light detector configured to receive at least a portion of the light from the lumen; and a controller configured to determine a concentration or quality of the liquid solution based on the light emitted by the light source and the portion of light received by the light detector.
Claims20
A sensor to measure a liquid, comprising:
- a light source operably coupled to a lumen disposed in a liquid solution, the light source configured to emit light and communicate the light to the lumen;
- a light detector operably coupled to the lumen, the light detector configured to receive at least a portion of the light from the lumen;
- and
- a controller configured to determine a concentration or quality of the liquid solution based on the light emitted by the light source and the portion of the light received by the light detector.
A sensor to measure a urea solution, comprising:
- a light source operably coupled to a lumen disposed in a urea solution, the light source configured to emit light and communicate the light to the lumen;
- a light detector operably coupled to the lumen, the light detector configured to receive at least a portion of the light from the lumen;
- and
- a controller configured to determine a concentration or quality of the urea solution based upon a ratio of a first light amplitude corresponding to the light emitted by the light source and a second light amplitude corresponding to the portion of the light received by the light detector.
A method of measuring a liquid, comprising:
- emitting a first quantity of light from a light source attached to a lumen disposed in a liquid solution;
- transmitting the first quantity of light through the lumen;
- receiving a second quantity of light at a light detector attached to the lumen;
- and
- determining a concentration or quality of the liquid solution based on the first quantity of light and the second quantity of light.
Dependencies are inferred from the claim text.