P3.5 Inductive Communication and Localization of Wireless Sensors in Photoreactors
- SMSI 2020
(did not take place because of Covid-19 virus pandemic)
- SMSI 2020 - Measurement Science
- P3 Advanced Methods and Approaches in Measurement
- D. Demetz, A. Sutor - Institute of Measurement and Sensor Technology, UMIT – Private University, Hall in Tirol (Austria)
- 325 - 326
We propose a method for inductive communication and localization of wireless sensors in photoreactors. In past, methods for internal illumination of photoreactors have been presented. Wireless light emitters (WLE) have been developed to counteract the limited penetration depth of light in photoreactors. Photoreactors are used to cultivate photosynthetic active microorganisms and cells or to perform photocatalytic reactions. The WLE are powered from outside the reactor through a loosely coupled inductive link. The intermediate frequency (178 kHz) electromagnetic field with a magnetic flux density of approx. B = 1 mT is produced by multiple coils driven by an Class-E amplifier -. The next step is the inclusion of sensors to measure crucial parameters such as e.g. temperature, pH-value or oxygen and carbon dioxide concentrations in order to control the various processes. Additionally the information about the position of the sensor inside the photoreactor leads to a spatial resolution of the measured parameter.