公开(公告)号：US20250076199A1

公开(公告)日：2025-03-06

申请号：US18240370

申请日：2023-08-31

Applicant: PyroScience GmbH

Inventor： Roland Thar

IPC: G01N21/64

Abstract: A method and apparatus for determining a decay time of a luminescence of a sample, comprising the following steps: excitation of a light source by means of an excitation current from a current source; irradiating the sample with a light of a wavelength suitable for exciting luminescence in the sample, periodically varying the irradiation intensity; measuring a light emitted from the sample, generating a first electrical signal in response to the light emitted from the sample, and amplifying the first electrical signal; detecting a first phase difference between the excitation current and the amplified first electrical signal; generating a second electrical signal, wherein the second electrical signal is generated directly from the excitation current of the current source and is subsequently amplified; detecting a second phase difference between the excitation current and the amplified second electrical signal; and determination of the decay time of the sample's luminescence based on a phase difference between the excitation current and the sample's light emission.

公开(公告)号：US20240255433A1

公开(公告)日：2024-08-01

申请号：US18422225

申请日：2024-01-25

Applicant: PyroScience GmbH

Inventor： Christoph Staudinger

IPC: G01N21/80

CPC classification number: G01N21/80 ,  G01N2201/127

Abstract: A device for calibrating measuring instruments for DLR measurement with optochemical pH sensors. The device includes a calibration head with a calibration layer applied to a carrier layer which contains a non-pH-sensitive dye which has the same optical properties as the pH-sensitive dye used for pH measurement, and the same reference dye as is used for pH measurement. Further including at least one light guide to the first end face of which the carrier layer with applied calibration layer is attached and the second end face of which is used to produce a light-conducting dye, as is used for the pH measurement, and at least one light guide, to the first end face of which the carrier layer with applied calibration layer is attached, and the second end face of which is set up to produce a light-conducting connection to a measuring device for DLR measurement with optochemical pH sensors.