研究目的
To develop a self-powered piezoelectric sensor based on lead-free (K,Na)NbO3 thin film for human health monitoring applications.
研究成果
The developed piezoelectric sensor effectively monitors human health signals with high sensitivity and self-powering capability, showing promise for wearable health devices. Future work should focus on enhancing durability and integration with wireless systems.
研究不足
The sensor's performance may be affected by environmental factors and body movement artifacts. Limited to specific physiological signals and requires further optimization for long-term stability.
1：Experimental Design and Method Selection:
The sensor was designed using lead-free KNN thin film on a flexible substrate. Piezoelectric properties were utilized for energy harvesting and sensing.
2：Sample Selection and Data Sources:
Human physiological signals (pulse, respiration, body movement) were measured.
3：List of Experimental Equipment and Materials:
Flexible substrate, KNN thin film, electrodes, signal acquisition system.
4：Experimental Procedures and Operational Workflow:
Fabrication of the sensor, attachment to human body, measurement of signals under various conditions.
5：Data Analysis Methods:
Signal processing techniques to analyze the output voltages and frequencies corresponding to physiological activities.
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