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:
Jan. 19, 1999
Filed:
Jun. 19, 1997
Seiji Kojima, Otsu, JP;
Shimadzu Corporation, Kyoto, JP;
Abstract
Turning on a hollow cathode lamp of an objective element, the intensity of the light is measured while scanning the wavelength within a predetermined range centering around the resonance line of the objective element by rotating a diffraction grating by a pulse motor. Then a spectrum is constructed on the screen of a display unit within the above range, and the user operates an operation unit to point out the peak of the resonance line in the spectrum. The number of the driving pulses sent to the pulse motor when the pointed peak is detected is saved in an EEPROM so that the number corresponds to the wavelength of the resonance line. After that, when the objective element in a sample is measured, the above number is read out from the EEPROM and the pulse signals are sent to the pulse motor by the number, whereby the diffraction grating is set at an angular position corresponding to the resonance line of the element correctly.