The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 01, 2013
Filed:
Sep. 24, 2010
Georg Greuel, Roetgen, DE;
Georg Greuel, Roetgen, DE;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
Devices and Methods for sensing UV dosage of a fluid stream are described. In a first aspect, a devicehas a first sensor arrangementfor measuring a flow speed of the fluid and a second sensor arrangementfor measuring an intensity of UV light radiation. A dosage calculation unitcalculates a dosage value from measurements of the sensor arrangements. The first sensor arrangement includes a resistive electrical componentin thermal contact with the fluid. The electrical componentmay be heated by an electrical current and has a temperature dependent electrical resistance. Thus, the first sensor arrangement may be used to determine the flow speed of the fluid from a cooling rate of the resistive electrical component. According to a second aspect, a deviceincludes at least one UV sensor componentfor measuring an intensity of UV light irradiation. A data storagefor storing intensity or dosage values and an electrical power storageare provided. The device is adapted to freely float within the fluid stream. As such, the devicemay be inserted into a fluid flowing through a channel, and a dosage value may be determined from data stored in the data storage after the devicehas passed through the channel.