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Welcome to the website of Kühnicke Embedded Real Time (KERT)

Our goal is the research, development and application of sensors with embedded measuring systems for fast acquisition and analysis of data. Several sensors form a decentralized measuring system in which the greatest possible range of functions is transferred to the sensors. All that remains central is the control console, for which an inexpensive tablet is sufficient. In principle, all computers and all operating systems are suitable. The sensors take over all calculations, save the measurement data and, as servers, generate dynamic websites. The console is the client and is used to set the measuring system and display the measurement results. The sensor network and the console can also be connected via the Internet. After setting the measuring system, the sensor network can also continue the measurement autonomously, i.e. without a console. The measurement data is then saved in the sensors for later evaluation. Data transmission takes place wirelessly in the 2.4 GHz band and/or via single-pair Ethernet cables (SPE). Power is provided either via a hybrid cable with an Ethernet pair and a DC pair or via built-in LiFePO4 batteries.

5G.Dual.150kHz -- new 2024
AE sensor of 5th generation
with integrated measuring system

Sensors with an integrated measuring system have been developed for the non-destructive testing method acoustic emission since 2016. The initial focus was on saving cables through wireless data transmission. The focus increasingly shifted to decentralized measuring systems, as these bring many other advantages in addition to saving cables. An important advantage is the self-scaling of such systems. If you look at the entire system, many parameters increase strictly linearly, such as costs, available memory, power consumption and computing power, strictly linearly with the number of sensors. An application for a certain number of sensors only contains as much hardware as is necessary for that application.
The fifth generation of these sensor systems is now being tested. The sensor consists of two separate housing parts, one analog and one digital. Both parts are coupled via a magnetic pogo pin joint. This enables the combination of analog parts with different sensor and band filter characteristics with the digital part. In the analog part, the sensor signal is amplified and band filtered. The logarithmic envelope is then formed to reduce the data. In the digital part, AE parameters such as arrival time, rise time, duration, peak amplitude and energy are extracted from the envelope. In parallel to the parameter extraction, the waveform of the envelope can be recorded. The server-client principle enables the construction of low-priced acoustic emission systems. The web structure takes care of high flexibility.

Further developments of the 5th generation compared to the 4th :



Our service advises and assists you in the selection and adaptation of hardware and software as well as in the design of the network architecture and the possibilities for self-sufficient power supply. For other applications we develop sensors in your order. Our experience is relevant for measurement tasks where the data rate is high and which require intelligent information compression.