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Reflection Probes with Reference
In order to correct fluctuations and drift from your light source, periodic referencing is required. To facilitate this, Avantes offers this series of reflection probes with a self-referencing feature.
The light coming from the light source is bundled into 12 fibres, which are split into two 6-fibre bundles. One of these bundles is carried to the probe end for sample measurement and the other bundle of 6 are directed to a white reflection tile built into the probe to provide a light source reference. This reference leg is connected to a slave spectrometer channel dedicated to light source referencing or may be routed to a single channel via a fibre-optic (contact a Sales Engineer about this special configuration). On the measurement side, the probe end has a seventh fibre, which reflects light back to the master spectrometer channel.
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Reflection Probes with Reference
Features
Specifications
| Fibers | 14 fibers 200 µm core, 12 light-fibers, 2 x 1 read fiber, N.A.= 0.22. Standard 2 m length, splitting point in the middle |
| Wavelength range | 200-2500 nm (UV/VIS/NIR) |
| Connectors | SMA-905 connectors (3x) |
| Probe end | Stainless steel 316 cylinder, 50 mm long x 6.35 mm diameter . Optionally –PK for PEEK or –HY for Hastelloy® C276 (on request) |
| Jacketing | The optical fibers are protected by a silicon inner tube and a flexible stainless steel (BX, O.D. 6.0 mm) or chrome plated brass (ME, 5.0 mm) outer jacket. The jacketing also gives stress relieve |
| Temperature | -30°C to 100°C. (-HT version 200°C) |
| Pressure | Probe head 50 bar @ 25°C |
| Bending | Minimum bend radius: short term (few seconds) 20 mm, long term: 120 mm |
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