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:
Jun. 04, 1991
Filed:
Sep. 04, 1990
Koji Masutani, Tokyo, JP;
Jeol Ltd., Tokyo, JP;
Abstract
A time-resolved infrared spectrophotometer capable of investigating samples exhibiting short periods of response to stimuli. The spectrophotometer comprises a rapid scan interferometer, a stimulus generator periodically producing a stimulus not in synchronism with the reference signal produced by the interferometer, a detector detecting the radiation emerging from the interferometer, a variable delay circuit producing a trigger signal after a delay with respect to the stimulus, a gate circuit converting the output from the detector into a discrete form in response to the trigger signal, a low-pass filter for detecting the envelope of the output from the gate circuit, an analog-to-digital converter converting the output from the filter into digital form, and a CPU which takes the Fourier transform of the output from the converter, for obtaining a spectrum.