Photometric cell and probe having windows fusion sealed to a met

Details Photometric cell and probe having windows fusion sealed to a met Photometric cell and probe having windows fusion sealed to a met

1991-01-24

1991-09-10

McGraw, Vincent P.

Optics: measuring and testing

For light transmission or absorption

Of fluent material

250576, 356246, G01N 2105, G01N 2109

Patent

active

050468545

ABSTRACT:
A photometric probe or a photometric cell having separate windows and a metallic probe body or cell body. The window(s) are sealed to the probe or cell body by brazed or frit seals which are less likely to leak after extended use in high temperature and/or high pressure industrial applications than probes and cells having gasket sealed windows. The windows can be made of sapphire, cubic zirconia, diamond, ruby, glass or quartz and, in the case of the probe, can be in the shape of an Attenuated Total Reflectance prism. The probe or cell body can be Kovar alloy or stainless steel.

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