Patent ID: 11953486
Assignee: SENSIRION AG
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 17:
18. The sensor according to claim 1, wherein the sensor (1) comprises a further photodetector (3a) configured to detect light in the visible or infrared spectrum, and wherein the light source (4) is further configured to also emit ultraviolet light that travels along a further optical path (P′) through the liquid (L) and is absorbable by carbon bonds of organic molecules in the liquid (L), wherein the sensor (1) comprises a further down conversion material portion (220) arranged in the further optical path (P′), wherein the further down conversion material portion (220) is configured to receive incoming ultraviolet light emitted by the light source (4) and to down convert received ultraviolet light and to emit said down converted light (51) in the visible or infrared spectrum so that emitted down converted light (51) impinges on the further photodetector (3a), and wherein a length of the optical path (P) differs from a length of the further optical path (P′).