Aptifirst introduce sapphire window optical process probes (SWOPPs), designed to help with direct on-line measurements during processes including extruders, reactors and injection moulding machines.
SWOPPs can be used with machines using near infra-red (NIR), raman, fourier transform infrared spectrometry (FTIR), visible and UV spectroscopy, and in a variety of applications including RandD, production and troubleshooting.
Features include a sealed, abrasion-resistant sapphire window in the probe tip; pressure resistance to 700 bars (10,000psi); temperature resistance to 400C (750F); a choice of fibres to suit varied applications; and bodies manufactured from stainless steel 316L or 17-4PH.
Tranmission or reflectance types available are IR, Visible or UV applications.
The hard sapphire window's inner face is angled to prevent internal reflections.
It has a melting point of about 2,040C (3,700F), an optical transmission range from 0.17 to 5.5 microns, a Young's Modulus of around 330GPa and a shear modulus of circa 150GPa.
SWOPPs are available in a variety of configurations and can be modified to suit individual applications.
The probes are available fitted with optical fibres and/or a standard SMA 905 connector for easy connection and disconnection.
