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RFP-430 -Fiber Optic Raman Probe for Lab Use

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By dispensing with the Hastelloy C-276 probe material, the RFP-430 Raman probe is a cost-effective alternative to the RFP-480. This probe has been developed for Raman spectroscopy in laboratory applications. A considerable shift between the end of the sensor and the viewed area diameter on the sample is achieved by using a relatively thin sapphire window. The RFP-430 is thus ideal for use in analysis conducted through glass vessels. Compared to other Raman probes, the focal point of the RFP-430 has been enlarged without adversely affecting the optical sensitivity of the measurement. This leads to reduced heating of the sensor during measurement, greater system stability and non-sensitivity with minor inhomogeneities.

The RFP-430 Raman probe can be connected to a laser and to a Raman spectrometer via standard fiber optic connectors. Two different fiber glass bundles with 19 and 7 individual fibers are available. The fiber leading to the laser has a core diameter of 100 Ám. Calibrations developed with the RFP-430 can be transferred to a system operating with an RFP-480 Raman sensor relatively easily.

Please contact our application scientists to find out the optimal system configuration to suit your requirements.

Probe during process

Spectral range150 - 4000 (Raman shift)
Excitation wavelengths532, 632, 785 or 1064 nm
Focal distance (selectable)10 mm / 0.39"
Viewed area diameter0.6 mm / 0.02"
Field depth, FWHM1.8 mm / 0.07"
Length of measuring head150 mm / 5.9"
Probe diameter16 mm / 0.6"
Maximum temperature at the probe tip100░C / 212 ░F
Maximum pressure2 bar / 30 psi
Probe materialWetted metal: stainless steel Ti316,
Window material: sapphire, window seal: Epoxy
Fiber connectorType FC (other on request)
Fiber optic bundleFiber bundle of 19 or 7 x 100 Ám low OH fibers,
n.A.: 0.26 mm / 0.01" (6 illumination, 1 receiving fibers)
Optical fiber length2 m / 6.6 ft (standard)

Last change 09/04/2007 11:09 AM
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