JYC 中频音叉 512Hz

评测依据

• review_count：3200
• rating_avg：4.7
• brand_reputation：0
• merchant_count：0
• price_range：[0,99]
• dimension：best_value
• sources：["京东","天猫"]
• time_range：{"from":"2026-06-26 02:55:13","to":"2026-06-26 02:55:13"}
• intros：{"brand_intro":"金音叉（JYC）是国内知名的听力与物理教学器材品牌，成立于1998年，总部位于浙江。专注于音叉、听力计及声学教具的研发与生产，产品广泛应用于医院听力检测、学校物理实验及音乐调律。品牌以\"精准发声、稳定耐用\"为核心，采用进口铝合金与精密车床加工，确保每支音叉频率误差控制在±0.5%以内，在教师和听力师群体中拥有极高口碑。","product_intro":"JYC-512 中频音叉为物理教学与听力测试专用型号，频率512Hz，属于标准中频段。音叉采用高强度铝合金一体成型，表面经阳极氧化处理，防锈耐磨。手柄设计符合人体工学，握持舒适，敲击后余音纯净、衰减均匀，适合演示声波共振、音调与频率关系等实验。附带橡胶敲击锤，避免金属直接碰撞导致频率偏移。","key_specs":["频率：512Hz","材质：铝合金（阳极氧化）","误差：±0.5%","长度：约20cm","重量：约85g","配件：橡胶敲击锤×1"]}
• alt_products：[{"product_name":"JYC 中频音叉 512Hz","brand":"JYC/金音叉","model":"JYC-512","price":48},{"product_name":"Tuning Fork 中频音叉 256Hz","brand":"Tuning Fork/调音叉","model":"TF-256","price":35}]
• kol_quotes：["@物理实验王老师：JYC的音叉我用了五年，频率依然稳定，学生实验数据很准。","@听力师李敏：512Hz是听力测试常用频率，这款音叉衰减曲线很标准。"]
• scoring_breakdown：[{"source":"word_of_mouth","score":92.6,"weight":0.2,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户普遍称赞其音准稳定，敲击后声音清晰且余音较长，适合课堂演示和听力筛查。多位物理教师反馈，与进口品牌相比性价比突出，且手柄防滑设计便于学生操作。少数用户提到包装内未附收纳盒，建议自备软布包裹。整体好评率超过95%，在京东教学器材类目长期排名前三。","source_count":2}},{"source":"objective","score":80.76454545454544,"weight":0.4,"confidence":0.5,"details":{"rating_avg":4.7,"price":48,"wom_score":92.6}},{"source":"user_review","score":94,"weight":0.3,"confidence":1,"details":{"rating_avg":4.7,"review_count":3200,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.1,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["@物理实验王老师：JYC的音叉我用了五年，频率依然稳定，学生实验数据很准。","@听力师李敏：512Hz是听力测试常用频率，这款音叉衰减曲线很标准。"]}}]
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