标准频率音叉 440Hz A4

评测依据

• review_count：3200
• rating_avg：4.7
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• time_range：{"from":"2026-06-26 02:55:13","to":"2026-06-26 02:55:13"}
• intros：{"brand_intro":"Tuning Fork 是国内专业物理教学仪器品牌，专注于声学实验器材研发与生产，拥有20余年行业经验。产品以高精度、耐用性著称，广泛应用于中小学物理实验室、音乐学院及科研机构。品牌坚持采用航空级铝合金材质，通过ISO9001质量管理体系认证，在声学教学领域口碑极佳。","product_intro":"这款440Hz A4标准频率音叉采用精密锻造工艺，频率误差控制在±0.5Hz以内，确保音准稳定。配备橡胶锤和共鸣箱，可清晰演示声音的产生、传播与共振原理。表面经阳极氧化处理，防锈耐腐蚀，手柄设计符合人体工学，握持舒适。适合物理课堂、音乐调音及听力测试等场景。","key_specs":["频率：440Hz ±0.5Hz","材质：航空级铝合金","配件：橡胶锤+共鸣箱","尺寸：总长180mm，叉臂长80mm","重量：约85g","适用温度：-10℃~50℃"]}
• alt_products：[{"product_name":"标准频率音叉 440Hz A4","brand":"Tuning Fork","model":"TF-440","price":68}]
• kol_quotes：["物理实验课代表：'440Hz音叉是声学实验的黄金标准，这款完全达标。'","音乐老师：'调音辅助利器，学生能直观感受标准音高。'"]
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