Colorimetric absorbance measurement apparatus

Details Colorimetric absorbance measurement apparatus Colorimetric absorbance measurement apparatus

2011-03-22

2011-03-22

Warden, Jill (Department: 1773)

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Sample mechanical transport means in or for automated...

C422S063000, C422S065000, C436S047000, C436S164000

Reexamination Certificate

active

07910061

ABSTRACT:
In a colorimetric absorbance measurement apparatus, a filter assembly on which a plurality of filters are arranged in a circular pattern is continuously rotated by a motor at a regular speed based on a motor drive signal fed from a motor drive circuit, each of the filters being characterized by passing only such light components that have wavelengths falling within a range centering on a specific wavelength. The motor drive signal produced by the motor drive circuit is also fed into a timing generator circuit. The timing generator circuit supplies an A/D conversion start signal to an A/D converter in synchronism with the timing at which a selected one of the multiple filters is positioned on the optical axis of a measuring light beam.

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patent: 5036198 (1991-07-01), Spaeth
patent: 0 243 139 (1987-10-01), None
patent: 2105058 (1983-03-01), None

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