Using an LSTM network to monitor industrial reactors using electrical
capacitance and impedance tomography – a hybrid approach
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Online publication date: 2023-01-27
Publication date: 2023-01-27
Eksploatacja i Niezawodność – Maintenance and Reliability 2023;25(1):11
HIGHLIGHTS
- Combination of two types of electrical tomography (capacitance and impedance).
- Verification of the advantage of hybrid tomography over homogeneous methods.
- Application of the LSTM network to solve the inverse problem in electrical tomography.
- The original approach to tomographic measurements as a data sequence for the LSTM network.
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ABSTRACT
The article presents a new concept for monitoring industrial tank
reactors. The presented concept allows for faster and more reliable
monitoring of industrial processes, which increases their reliability and
reduces operating costs. The innovative method is based on electrical
tomography. At the same time, it is non-invasive and enables the imaging
of phase changes inside tanks filled with liquid. In particular, the hybrid
tomograph can detect gas bubbles and crystals formed during industrial
processes. The main novelty of the described solution is the
simultaneous use of two types of electrical tomography: impedance and
capacitance. Another novelty is the use of the LSTM network to solve
the tomographic inverse problem. It was made possible by taking the
measurement vector as a data sequence. Research has shown that the
proposed hybrid solution and the LSTM algorithm work better than
separate systems based on impedance or capacitance tomography.
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