傳統的吸汗服透過材料和結構上的改進來增強水分蒸發，但在高濕度和低空氣流通環境下，其效果會降低。超音波霧化技術利用高頻振動將液體分解成細小液滴，無需過熱或笨重的設備即可高效去除水分，從而提供了更可行的解決方案。因此，本研究提出了一種利用超音波霧化技術增強運動過程中排汗效果的主動排汗系統。該系統包括控制單元、驅動電路、濕度感測器和霧化器（網狀壓電片）。當濕度超過閾值時，系統會進行頻率掃描，使霧化器在其當前諧振頻率下工作，從而最大限度地提高霧化效率。最後，本研究進行了多次室內自行車運動試驗，以評估該系統的有效性。結果顯示，穿著主動排汗襯衫後，受試者的殘餘汗液量、心率和體溫分別降低了10.8 ± 7.56克、8.54 ± 4.13次/分鐘和0.027 ± 0.077°C。這些結果表明，超音波霧化技術在穿戴式排汗管理方面具有應用潛力。

Traditional sweat-wicking clothing enhances evaporation through material and structural modifications, but its effectiveness diminishes in high humidity and low air circulation. Ultrasonic atomization provides a more viable solution by breaking liquid into fine droplets through high-frequency vibrations, enabling efficient moisture removal without excessive heat or bulky machinery. Hence, this study proposes an active sweat-releasing system utilizing ultrasonic atomization to enhance sweat removal during exercise. The system comprises a control unit, driving circuits, humidity sensors, and atomizers (mesh piezo sheets). When the humidity exceeds the threshold, the system performs a frequency sweep to drive the atomizers at their current resonance frequency to maximize the atomization efficiency. Finally, this work conducted several indoor cycling trials to evaluate the system’s effectiveness. The results showed that participants were 10.8 ± 7.56 g, 8.54 ± 4.13 beats, and 0.027 ± 0.077°C less in residual sweat, heart rate, and body temperature when wearing active sweat-releasing shirts. These results demonstrate the potential of ultrasonic atomization in wearable sweat management.

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