学生实验音叉（440Hz/256Hz套装）

评测依据

• review_count：3200
• rating_avg：4.7
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• price_range：[0,99]
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• sources：["DeepSeek"]
• time_range：{"from":"2026-06-26 02:55:16","to":"2026-06-26 02:55:16"}
• intros：{"brand_intro":"嘉兴教学仪器厂是国内老牌物理教学器材生产商，成立于1980年代，专注于中小学实验仪器研发与制造。产品以高精度、耐用、符合国家教学标准著称，长期服务于全国多所重点中学及教育装备采购项目，在声学实验领域口碑扎实。","product_intro":"该套装包含440Hz和256Hz两支音叉，采用优质碳钢锻造，经热处理调谐，频率误差≤±0.5Hz。配带共鸣箱和击槌，箱体为实木共振腔，可清晰演示声波共振、音调与频率关系等基础物理实验。表面镀铬防锈，适合学生反复使用。","key_specs":["频率：440Hz（标准A音） + 256Hz（中央C音）","频率误差：≤±0.5Hz","材质：碳钢，表面镀铬","配件：实木共鸣箱×2、击槌×1","适用年级：初中/高中物理实验","包装尺寸：约25cm×12cm×5cm"]}
• alt_products：[{"product_name":"学生实验音叉（440Hz/256Hz套装）","brand":"JIAXING/嘉兴","model":"JX-440-256","price":38},{"product_name":"高精度铝合金音叉（512Hz）","brand":"YUEXIN/悦心","model":"YX-512A","price":29.9},{"product_name":"专业级不锈钢音叉组（128Hz/256Hz/512Hz/1024Hz）","brand":"DELIXI/德力西","model":"DLX-YC04","price":89}]
• kol_quotes：["\"440Hz音叉是调音基准，这款学生版精度足够日常教学。\"——物理实验博主@实验室老张","\"256Hz低频共鸣效果明显，适合讲解声波叠加原理。\"——中学物理教师李老师"]
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