Linear optical loss probe

Details Linear optical loss probe Linear optical loss probe

2007-08-14

2009-08-25

Punnoose, Roy (Department: 2886)

Optics: measuring and testing

By particle light scattering

With photocell detection

C356S336000

Reexamination Certificate

active

07580128

ABSTRACT:
An optical loss probe utilized as a bioreactor process monitor manifesting a substantially linear response in optical loss vs. concentration of scatterers present in an aqueous medium in the range of between about 0 AU and about 4.0 AU, said probe comprising:i) a light source,ii) an optical detector, andiii) an optical gap between said light source and said optical detector, said optical detector having a receiving aperture configured such that the solid angle of acceptance of the light passing through said optical gap and impinging on said optical detector is less than π/50 radians.

REFERENCES:
patent: 6266137 (2001-07-01), Morinaga
patent: 6842243 (2005-01-01), Tokhtuev et al.
patent: 2003/0117623 (2003-06-01), Tokhtuev et al.
patent: 2008/0114550 (2008-05-01), Paldus et al.

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