Dominik Jurków

Three axial low temperature cofired ceramic accelerometer

Purpose – The paper aims to present numerical modeling and technology of a very first three axial low temperature cofired ceramics (LTCC) accelerometer.Design/methodology/approach – Low temperature cofired ceramics technology was applied in the fabrication process of the novel device. The numerical modeling was used to predict the properties of the accelerometer, moreover, design of the experiment methodology was used to reduce time of simulation and to get as much as information from the experiment as possible.Findings – The low temperature cofired ceramics make it possible to fabricate three axial accelerometer.Research limitations/implications – The presented device is just a first prototype. Therefore, further research work will be needed to improve structural drawbacks and to analyze precisely the device reliability and parameters repeatability.Practical implications – The device presented in the paper can be applied in systems working in a harsh environment (high temperature and humidity). Ceramic s...

Miniaturised Flame Ionisation Detector for Explosion Protection in Civil Sewerage Networks

This work presents a new approach to enhance the civil safety by monitoring the civil sewerage networks to prevent formation of explosive atmospheres and thus enabling early initialisation of counter measures. For this approach a new system with a miniaturised flame ionisation detector (FID) as embedded sensor has been developed. The micro FID embeds the fluidic components, the micro burner, the electrical structures for ignition and ion current measurement, and resistive temperature measurement elements in one monolithic ceramic component. Characterisation of the micro FID revealed good sensor performance with high sensitivity and reduced gas consumption compared to conventional FIDs. Thus, this micro FID is an excellent choice for an embedded sensor in the context of monitoring the civil sewerage.

Influence of co-firing process condition on low temperature co-fired ceramics membrane deflection

Purpose – The paper aims to present the influence of the co-firing process conditions of low temperature co-fired ceramics (LTCC) on the deformation of thin LTCC membranes. Design/methodology/approach – The statistical design of the experiment methodology was used in the frame of these investigations to reduce the time and costs of the experiments and to ensure easier interpretation of the obtained results. Moreover, this conception permits the rough estimation of the membrane deflection fired at optimal process conditions. Findings – The applied design of the experiment methodology allowed the researchers to find the optimal co-firing process conditions and to estimate the membrane deflection at the optimal process conditions. The estimation fits well with the results of real measurement that was conducted to confirm the estimation precision. Research limitations/implications – The experiment was conducted for only one type of LTCC, DP951. The precision of the design of the experiment optimization and es...

Electronic device integrated with LTCC temperature stabilizer

Purpose – The purpose of this paper is to present the application of low temperature cofired ceramics (LTCC) technology in the fabrication of a novel electronic device, which consists of an antenna amplifier integrated with temperature stabilizer. The temperature controller consists of a thick‐film thermistor and heater, which has been optimized using geometry to achieve uniform temperature distribution on the whole electronic substrate.Design/methodology/approach – LTCC technology was applied in the fabrication process of the novel device. The temperature distribution on the ceramic substrate and temperature stabilization time were analyzed using an IR camera. The heating ability of the heater was tested in a climatic chamber. The heater and thermistors parameters variability were estimated using a basic mathematical statistic.Findings – The integrated device ensures proper temperature conditions of electronic components if the ambient temperature is lower than −40°C.Research limitations/implications – T...