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Aptifirst’s Swopp sapphire window optical process probes are said to be ideal for inline quality control and monitoring operations.

The precision-engineered probes allow, via fibre-optic connections, spectrometry to be carried out online during chemical reactions and processing.

Swopp probes, with a 0.17-5.5-micron optical transmission range of sapphire, can work in the near-infrared (NIR), visible and ultraviolet (UV) parts of the spectrum, allowing techniques such as NIR, FTIR, UV and visible spectroscopy to be employed.

The precision-polished sapphire lenses are resistant to abrasion and the probes can operate at up to 400C (750F) and at pressures of up to 70MPa (10,000psi), so that in-process materials may be monitored for parameters such as degradation, moisture content and additive levels in real time and under live manufacturing conditions.

As standard, the probe bodies are machined in stainless steel to fit a standard 1/2in-20-UNF Dynisco-type transducer port with a 45deg sealing face, although other configurations can be supplied to order.

The probes can be supplied for transmission mode, where two probes are mounted facing each other across the process stream, with one probe supplying the light source and the other receiving the signal attenuated by the test material, or they can be supplied for reflectance mode.

Here, a single probe has a central optical fibre through which the light source is beamed, and this fibre is surrounded by a number of other fibres that collect the reflected or back-scattered attenuated light and convey it back to the detector.

Swopp probes can be supplied with an integral optical fibre with a ’tail’ of a suitable length to suit the user’s circumstances or with an industry-standard optical-fibre connector such as the SMA 905.

They can be supplied as a holder for a standard fibre-optic bundle, so that the Swopp probe may be left in situ so as not to disturb the process, while the fibre-optic bundle is employed elsewhere.

In addition, the sapphire window lenses can be machined for precision focal lengths.

Roy Carter, senior partner of Aptifirst, said: ’The Swopp probes are precision-machined adaptors that will allow a window to be gained to your materials as they are being processed and transported.

’With real-time spectroscopic analysis, information can be provided to enable early decisions to be made regarding processing conditions, additive levels, etc, to minimise wastage, optimise energy usage and maximise productivity,’ he added.

Aptifirst introduces Swopp optical process probes

Aptifirst’s Swopp sapphire window optical process probes are said to be ideal for inline quality control and monitoring operations.

The precision-engineered probes allow, via fibre-optic connections, spectrometry to be carried out online during chemical reactions and processing.

Swopp probes, with a 0.17-5.5-micron optical transmission range of sapphire, can work in the near-infrared (NIR), visible and ultraviolet (UV) parts of the spectrum, allowing techniques such as NIR, FTIR, UV and visible spectroscopy to be employed.

The precision-polished sapphire lenses are resistant to abrasion and the probes can operate at up to 400C (750F) and at pressures of up to 70MPa (10,000psi), so that in-process materials may be monitored for parameters such as degradation, moisture content and additive levels in real time and under live manufacturing conditions.

As standard, the probe bodies are machined in stainless steel to fit a standard 1/2in-20-UNF Dynisco-type transducer port with a 45deg sealing face, although other configurations can be supplied to order.

The probes can be supplied for transmission mode, where two probes are mounted facing each other across the process stream, with one probe supplying the light source and the other receiving the signal attenuated by the test material, or they can be supplied for reflectance mode.

Here, a single probe has a central optical fibre through which the light source is beamed, and this fibre is surrounded by a number of other fibres that collect the reflected or back-scattered attenuated light and convey it back to the detector.

Swopp probes can be supplied with an integral optical fibre with a ’tail’ of a suitable length to suit the user’s circumstances or with an industry-standard optical-fibre connector such as the SMA 905.

They can be supplied as a holder for a standard fibre-optic bundle, so that the Swopp probe may be left in situ so as not to disturb the process, while the fibre-optic bundle is employed elsewhere.

In addition, the sapphire window lenses can be machined for precision focal lengths.

Roy Carter, senior partner of Aptifirst, said: ’The Swopp probes are precision-machined adaptors that will allow a window to be gained to your materials as they are being processed and transported.

’With real-time spectroscopic analysis, information can be provided to enable early decisions to be made regarding processing conditions, additive levels, etc, to minimise wastage, optimise energy usage and maximise productivity,’ he added.

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