For special applications where a fiber probe needs to be installed in a harsh industrial environment, specific features may be required. Avantes has been constructing many high quality probes for harsh environments over more than 15 years. Special expertise has been built-up in high temperature (HTX), high pressure (HP), vacuum and other specifications. Also the combination of fiber diameters, wavelength range, sleeving material and length as well as connectors, ferrules, etc. enables an unlimited amount of custom specific products. Below are a few examples of our capabilities.
HTX Extreme High Temperatures
Some special probes for extreme high temperatures are used in catalysis reactors under temperatures up to 500°C. The use of CuBALL fibers and silver soldering technique allows us to design and manufacture –HTX probes. This reflection probe has 7 fibers of 400µm CuBALL, UV/VIS, is 2m long and the probe tip can withstand temperatures up to 500°C. The SMA905 connectors are bonded with an -HT temperature epoxy and can withstand 200°C.
Special configurations
For translucency measurements on the human skin it is necessary to get a reflection signal from different penetration depths. This is realized in a probe end with many fibers in a bundle and 2 different rings of fibers around the center bundle. This probe has a total length of 1.5 meters and consist of 350 fibers of 100µm, UV/VIS, 5 legs all terminated with SMA905 connectors
Process Probes
Specially for the paper and pulp industry a NIR Reflection probe has been designed with a laser-welded window under 25 degrees. The probe is used in a refiner in a very abrasive material stream and often gets in contact with acetone and turpentine.The probe is 3 meters long and consists of 14 fibers of 400µm, VIS/NIR, and has an internal reference in the coupling piece. Temperature range up to 200 °C (-HT) and pressure up to 30 bars.The probe has a metal silicone (-MS) sleeving and is terminated with SMA905 connectors
