FiberLIBS inline

FiberLIBS inline Element analyzer Fiber-coupled surface sensors for different application

Laser-induced breakdown spectroscopy (LIBS) performs fast, precise and contact-free analysis of multiple elements. An intense laser pulse is focused on the surface to be investigated. Within the measurement area of approx. 100-micron diameter, a plasma is generated, whose
emission is characteristic of the material being analyzed. Through spectral analysis of the plasma emission and evaluation of characteristic spectral lines, qualitative and quantitative statements can be delivered within milliseconds, regarding the elemental composition at the point
of measurement. Since the spectral fingerprint of all elements is captured simultaneously, this method is universal and flexible.
The FiberLIBSinline is specially designed to fulfill the demands of industrial process control. This system combines the advantages of high speed and contact-free LIBS technology with intelligent, robust design that suits industrial needs.

ParameterValue
Pulse energy3 mJ
Repetition rate100 Hz
Measuring headFiber-coupled, weight < 2kg
Measurement distance (f)75mm, 100mm, 150mm, 200mm
Advantages
  • Compact and robust element analyzer
  • Fully automated, contact-free analysis procedure
  • Many adjustment options to the application

Working Principle
In the measuring head, laser pulse with extremely high pulse peak power are generated. By means of mirror optics, the pulses are focused onto the surface to be analyzed. The high power density causes the generation of a plasma, the emission of which is characteristic for the element composition of the sample material.
The plasma emission is monitored collinear via the same optics.

The measurements are done
  • online (analysis time typically 1ms)
  • on site (compact measuring head - easy to integrate)
  • in situ (no sample preparation required)

Range of applications
Determination of the element composition in a small measurement spot (diameter typically 100µm) within a few milliseconds.
  • Industrial process monitoring (e.g. monitoring of ablation processes)
  • Analysis of impurities and inhomogeneities (e.g. element distribution in solar cells)
  • Recycling (e.g. determining alloys in hard metals)

Integration into external system technology
The communication between external system technology and the FiberLIBS sensor can be done via Ethernet or Profibus or other interface. A standardized protocol enables system start and stop as well as status queries.
In measurement operation, the FiberLIBS transmits the current analysis values or a classification result, or it does an internal comparison to a nominal composition (QM) (output OK or NOK).