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:
May. 22, 2018
Filed:
Feb. 16, 2016
Presens—precision Sensing Gmbh, Regensburg, DE;
Gregor Liebsch, Obertraubling, DE;
Damian Andrzejewski, Sinzing, DE;
PreSens—Precision Sensing GmbH, Regensburg, DE;
Abstract
A method for determining a variable of a sample is provided. At least one sensor substance is brought into contact with the sample and excited to luminesce by means of an electromagnetic excitation signal. The sensor substance is such that a relaxation time of its luminescence behavior depends on the variable of the sample to be determined. The electromagnetic excitation signal has a defined time-dependence, it is, for example, a frequency-modulated signal or a pulse sequence, in which distances between pulses are varied over the duration of the excitation signal. The time dependence of the luminescence response of the sensor substance is detected and an output signal is generated therefrom by integrating over specified time-intervals. An instant of time, relative to the time-dependence of the excitation signal, is determined, at which a step occurs in the time-dependence of the output signal. The value of the variable is determined from said instant of time. A preceding calibration can be advantageously used for this purpose.