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:
Jul. 13, 1999
Filed:
Feb. 02, 1998
Axel Keens, Karlsruhe, DE;
Norbert Rapp, Hagenbach, DE;
Bruker Analtyik GmbH, Rheinstetten, DE;
Abstract
A method of obtaining an FT spectrum according to Brault is improved in that the compensation filter is determined by recording a broad-band effective interferogram, carrying out complex Fourier transformation, forming a mean value of the phase spectra, converting the abscissa values into electrical frequencies, and establishing the transfer function of the detector and of the further signal processing elements, wherein the free parameters of the transfer function are chosen such that the phase response of the transfer function deviates as little as possible from the mean value of the phase spectrum of the effective recorded interferogram. If necessary, the determined transfer function is then digitized. The compensation filter is then determined as the inverse of the discrete transfer function. In this way, deconvolution of the signal processing elements transfer function from the spectra is facilitated in a particularly simple and effective manner.