Method and system for determining ultraviolet fluence received by a fluid
US9658102B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2014 |
| Grant date | May 23, 2017 |
| Priority date | — |
| Expiry date | Nov 12, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/13
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There is described a method of determining the UV fluence received by a fluid. The method comprises the steps of: (a) irradiating the fluid at an unknown UV fluence; (b) measuring the fluorescence of a test sample of the fluid after irradiation in Step (a) to produce a test signal proportional to the concentration of a prescribed fluorescent composition of matter comprised in the test sample; and (c) determining the value of the unknown UV fluence by comparing the test signal to a calibration curve of a control signal proportional to concentration of the prescribed fluorescent composition of matter in the fluid as a function of applied UV fluence. There is also described a system for determining the UV fluence received by a fluid being treated in UV fluid treatment system comprising at least one UV source. The system comprises: (a) a radiation-transparent vessel for receiving a test sample of the fluid after irradiation of the fluid at an unknown UV fluence; (b) a fluorometer for measuring the fluorescence of the test sample received in the radiation-transparent vessel to produce a test signal proportional to the concentration of a prescribed fluorescent composition of matter compr…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.