Industry and Applications

The Special Technologies team has great experience with vacuum capillary brazing. The most commonly used solders are silver- or nickel-based alloys, or copper. For soldering metals to brittle non-metal materials (e.g. quartz), so-called “active”, soft solders are applied.

For these technologies, our institute has at its disposal two vacuum furnaces:
Vacuum furnace PZ 810, manufactured by Tesla Rožnov, with the following parameters:

Electron beam welding is a fusion joining method that applies an electron beam for local heating. At the point of impact, the kinetic energy of electrons, ranging from 30 to 200 keV, is transferred into heat which rapidly warms any material to its melting point. The process takes place in a high vacuum (pressure 10⁻² to 10⁻³ Pa), most often without additional material.

Optical micro-manipulation techniques use the transfer of momentum from light to microobjects. Such a transfer occurs, for example, during light scattering from the microobjects, which is accompanied by a change of direction of the light propagation. Optical micromanipulations make it possible to influence the motion of objects of sizes from tens of nanometers to tens of micrometers just by illumination with a laser beam.

Laser Raman spectroscopy is a powerful technique for the identification of a wide range of samples – solids, liquids, and gases. It is a straightforward, non-destructive technique requiring no sample preparation. Raman spectroscopy involves illuminating the sample with monochromatic light (laser) and using a spectrometer to examine light that is scattered by the sample. Spectral composition of the scattered light carries information about different molecular or crystal vibrational modes which can serve as a unique characteristic for different materials.

Recently, there has been increased interest and demand in nearly all scientific research areas for experimental techniques that enable fast and unambiguous interpretation of the acquired data. This interest follows industrial requirements for fast and accurate material identification and analyses without lengthy laboratory techniques. The technique of LIBS involves formation of luminous plasma generated by focusing the radiation from a pulsed fixed-frequency laser (less then 1J/pulse) onto the surface of the sample to be analysed.

The MediSIG team mainly designs and constructs experimental devices for the measuring and data processing of biological signals. We concentrate on devices which are not available or do not yet have the desired parameters on the commercial market.

Examples of devices:

In addition to software and experimental devices MediSIG also produces complete acquisition systems. It can simultaneously record up to 128 channels, sampling up to 5MHz per channel with 16bit resolution and higher. The hardware is built on top of National Instruments PCI / PCMCIA / USB devices. For experiment control and data recording the ScopeWin program is used.

Realization examples: