Lower Cost Transflectance Insertion Probe

The transflectance insertion probe sends light through the sample in the "gap" and is reflected back through the sample from a sealed mirror at the tip of the probe. Thus, collimated light passes through the sample twice. The optical path becomes twice the length of the physical "gap".

Advantages:

Narrow 1/2" diameter
Low cost
Long optical paths up to 50 mm in a short space

This is accomplished by using a "bifircated" fiber optic cable. It has a common end with 2 optical fibers in one SMA905 connector tip within the body of the probe. This cable exits the back of the probe through a water-tight, strain-relief fitting. It divides into two cables within our ChemView or ClearView analyzers; one connected to the light source and the other to the multiple detector group. The probe can be made of most any metal with its o-ring seals and sapphire windows.

Specifications

Probe Length (in)	8; 12; 18; 24; (custom lengths available on request)
Pathlength (mm ± 0.10 mm)	2; 5; 10; 20; 50 (custom lengths available on request)
Probe Diameter (in)	0.500
Spectral Range	UV-VIS (300 – 600 nm); VIS-NIR (380 – 1100 nm); NIR (800 – 2100 nm)
Fiber Diameter (µm)	500; 600
Fiber Connectors	SMA 905
Fiber Types	High-OH (UV-VIS); Low-OH or Ultra Low-OH (VIS-NIR)
Optical Efficiency (%T)	~ 25% from 800 nm to 1600 nm
Temperature Range	-20 °C to150 °C (probe only)
Pressure Range	0 psi to 2000 psi [0 – 138 bar] (probe only)
Body Material	SS316 standard (SS304, SS316L, Hastelloy, Monel, Titanium, and Nickel available)
Window Material	Sapphire
Window Seal	Kalrez^® o-rings