Measuring apparatus

Details Measuring apparatus Measuring apparatus

2005-09-28

2009-02-24

Stafira, Michael P (Department: 2886)

Optics: measuring and testing

Blood analysis

C356S040000

Reexamination Certificate

active

07495751

ABSTRACT:
A measuring apparatus is provided with a light source (4), a first light-receiving element (5) and a second light-receiving element (6) which output signals corresponding to light intensity, a calculating part (12) and a memory part (13). The first light-receiving element (6) and the light source (4) are arranged so that transmitted light emitted from the light source and passed through a sample is received by the first light-receiving element (5). The second light-receiving element (6) is arranged so as to receive light other than the transmitted light emitted from the light source (4). In the memory part (13), a correlation between the output value of the first light-receiving element (5) and the output value of the second light-receiving element (6) when light is emitted from the light source (4) in a state where the sample is not present is stored. The calculating part calculates absorbance of a target component contained in the sample, from the output values of the first light-receiving element (5) and the second light-receiving element (6) when light is emitted from the light resource (4) in the state where the sample present, and from the correlation.

REFERENCES:
patent: 6121050 (2000-09-01), Han
patent: 2005/0036146 (2005-02-01), Braig et al.
patent: 4-151546 (1992-05-01), None
patent: 2001-091518 (2001-04-01), None

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