The doctoral thesis provides a comprehensive overview of three scientific papers, which collectively explore a method for 3D printing piezoelectric sensors with integrated electromagnetic protection in a single process.
The presented single-process method combines the printing of piezoelectric elements, electrodes, conductive paths, and structural components with the automatic application of high voltage for the polarization of the piezoelectric film. Sensor manufacturing concepts are designed to reduce the risk of electrical shorts and arcing during fabrication while allowing for direct integration of sensors into 3D printed structures.
Sensors manufactured using this method combine the electromagnetically shielded sensing part, conductive paths, and an adapter for connection to commercial measuring equipment, significantly improving the signal-to-noise ratio. In terms of usable frequency range and sensitivity, 3D-printed sensors are comparable to traditional piezoelectric sensors for mechanical oscillations. The new manufacturing technology allows for complete customization of sensor shapes to specific applications and the integration of electromagnetic protection.
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