Abstract
The present invention relates to an optical sensor (100) adapted to measure at least three physical parameters, said optical sensor comprising a polymer-based optical waveguide structure comprising a first Bragg grating structure (101) being adapted to provide information about a first, a second and a third physical parameter, a second Bragg grating structure (102) being adapted to provide information about the second and the third physical parameter only, and a third Bragg grating structure (103) being adapted to provide information about the third physical parameter only. The invention further relates to a method for measuring the first, the second and the third physical parameter. Preferably, the first, the second and the third physical parameter, are humidity, strain and temperature, respectively.
| Original language | English |
|---|---|
| IPC | G02B 6/ 12 A I |
| Patent number | WO2015181155 |
| Filing date | 03/12/2015 |
| Country/Territory | International Bureau of the World Intellectual Property Organization (WIPO) |
| Priority date | 26/05/2014 |
| Priority number | EP20140169826 |
| Publication status | Published - 3 Dec 2015 |
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