Abschlussarbeiten - Diplom
Entwicklung eines drahtlosen, energieautarken, sensorischen Systems für bewegliche Werkzeugmaschinenkomponenten
Art der Abschlussarbeit
Diplomarbeit
Autoren
- Jablonski, Thomas
Betreuer
- Prof. Dr.-Ing. habil. Wolf-Joachim Fischer
Weitere Betreuer
M.Sc. S. Keil-Kopp (Fraunhofer IWU)
Abstract
In the course of this thesis, a wireless, energy self-sufficient sensor system for measuring the
maximum force in a punching process is developed. For the energy supply, an energy-harvesting
concept is designed, in which energy is converted from the deformation of the ram of a
punching tool via a piezoelectric element, and stored in a supercapacitor. The sensor system
powers up periodically to record measurement values and deactivates itself automatically to
save energy after the data transmission has been completed. The measuring concept consists of
a second piezoelectric element in conjunction with a charge amplifier. The maximum value of
the force curve can be determined by a microcontroller and transmitted wirelessly to a receiver
via an energy efficient, connectionless, unidirectional radio transmission using Bluetooth Low
Energy. To test the sensor system, a test stand is set up to simulate the punching process. This
enables the feasibility of the energy self-sufficient operation of the sensor system to be proven
and the performance of the system to be analyzed.
maximum force in a punching process is developed. For the energy supply, an energy-harvesting
concept is designed, in which energy is converted from the deformation of the ram of a
punching tool via a piezoelectric element, and stored in a supercapacitor. The sensor system
powers up periodically to record measurement values and deactivates itself automatically to
save energy after the data transmission has been completed. The measuring concept consists of
a second piezoelectric element in conjunction with a charge amplifier. The maximum value of
the force curve can be determined by a microcontroller and transmitted wirelessly to a receiver
via an energy efficient, connectionless, unidirectional radio transmission using Bluetooth Low
Energy. To test the sensor system, a test stand is set up to simulate the punching process. This
enables the feasibility of the energy self-sufficient operation of the sensor system to be proven
and the performance of the system to be analyzed.
Schlagwörter
-
Berichtsjahr
2018