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• 10:41, 18 April 2026 Xiangyi talk contribs created page Humidity Detector Based on Quartz Crystal Oscillator (Created page with "== Results and Discussion == A Colpitts oscillator circuit was successfully constructed on a breadboard, and stable oscillation was achieved. The designed oscillation frequency was approximately 6 MHz. For the uncoated quartz crystal, the measured oscillation frequency was 5.9786 MHz, which is consistent with the expected value within experimental uncertainty. File:5271-1.jpg")