Process Measurement Technology

OMD - Object reconstruction in microwave defectoscopy

The aim of the research project is the development of a tool for the clear identification of defects by improving the recording techniques and the reconstruction itself. In the future, this will enhance the detection of smaller or critical defects. Together with the measured data acquired, an autonomous detection and high-resolution reconstruction of geometries and defects is to be developed. The project focuses on FRPs with varying defect types and the algorithm-based (autonomous) interpretation of the measured reflection signatures.

DISPO - New method of inline-monitoring the dispersion quality of polymer melts on the basis of modulated ultrasonic reflections

The dispersing quality of polymer compounds represents an essential quality criterion in the field of plastic processing. In practice offline methods of analysis are common, which are labor- and time-intensive and preclude a 100% process monitoring. However, for this purpose acoustic sensors are inline capable.

LiquiLab / GasLab - Microbalance sensor systems for investigations in liquids / gases

Quartz crystals can be used as mass sensitive chemical or biological sensors due to the modification of their surface. Using the experience within the development of such sensor systems, the experimental set-ups LiquiLab and GasLab were developed and have been continuously improved.

TILT - Technological and algorithmic improvement of non-invasive ultrasonic liquid level measurement under complex process conditions

Liquid level measurement by ultrasonic clamp-on-sensors is advantageous for numerous applications due to the non-invasive function. In practice, however, different technical reasons (e.g. structure borne sound, misalignment of transducer) hinder the usablility. The project TILT aims to solve those problems and to make the measurement process more practicable.

TOPAS - Tomographic process monitoring of liquid multiphase systems

The spatially resolved monitoring of physical parameters can provide key information that allow for precise control and optimization of liquid-based reactions. However, there is often a lack of adequate measurement methods that make a tomographic image of a process medium and its spatial distribution available.

Inline process-monitoring of high concentrated dispersions using ultrasonic reflection technique

The continuous monitoring of dispersions with high solids content by means of particle size (distribution) and/or concentration – as it is recommended e.g. for quality control in industrial processes – often fails due to inadequate inline-measuring principles. A new approach takes advantage of acoustic signals that are reflected at (instead of transmitted through) the disperse medium.

DIP-Sensor - Wireless multisensor for inline process analysis

The focus of the research project was the development of methodological and algorithmic concepts for a compact and mobile sensor system used in liquid multiphase systems. In order to achieve near real-time knowledge of an underlying process, the temporal and spatial analysis of (multi-phase) liquids is intended.

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