SPECTROPHOTOMETER AND SIGNAL INTEGRATION METHOD FOR SPECTROPHOTOMETER

WIPO Patent Application WO/2013/046861

A1

Provided is a spectrophotometer wherein a xenon flash tube is used as a light source, a difference light-pulse duration can be set for each wavelength in a measurement wavelength range, and the size of an integration window can be set such that the obtained signal does not become saturated in an analog-to-digital conversion circuit. The wavelength of light from the xenon flash tube (1) is selected, and the analog-to-digital conversion circuit (13) is set to an integration-window size appropriate to the selected wavelength. For wavelengths with high emission intensity, an integration-window size such that the analog-to-digital conversion circuit (13) does not become saturated is set. Provided are a spectrophotometer and spectrometry method wherein a xenon flash tube is used as a light source (1), a different light-pulse duration can be set for each wavelength in a measurement wavelength range, the size of an integration window can be set such that the obtained signal does not become saturated in an analog-to-digital conversion circuit (13), the signal-to-noise ratio is good, and saturation of the analog-to-digital conversion circuit (13) can be avoided.

SASANO NAOKI (JP)
KURIMOTO DAISUKE (JP)
NAKAMURA SATOSHI (JP)
SATO YOICHI (JP)

PCT/JP2012/067711

April 04, 2013

July 11, 2012

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HITACHI HIGH TECH CORP (JP)
SASANO NAOKI (JP)
KURIMOTO DAISUKE (JP)
NAKAMURA SATOSHI (JP)
SATO YOICHI (JP)

G01J3/42; G01N21/27

JP2000500875A	2000-01-25
JPS54111878A	1979-09-01
JPH0815013A	1996-01-19
JPH043492B2	1992-01-23

KASUGA Yuzuru (JP)
Kasuga 讓 (JP)

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