金宝物理实验音叉 256Hz/512Hz/440Hz

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 02:55:18","to":"2026-06-26 02:55:18"}
• intros：{"brand_intro":"金宝是国内知名的教学仪器品牌，成立于1998年，专注于物理、化学、生物等学科实验器材的研发与生产。产品以高精度、耐用性强著称，广泛应用于中小学及高校实验室。金宝音叉采用优质铝合金锻造，音准稳定，表面经阳极氧化处理，防锈耐磨，是物理声学实验的经典选择。","product_intro":"该音叉为物理实验专用，提供256Hz、512Hz、440Hz三种常用频率，满足共振、声波干涉、音调与频率关系等基础实验需求。叉体采用一体成型工艺，敲击后余音清晰悠长，附赠橡胶锤和共鸣箱。手柄设计符合人体工学，握持舒适，适合学生反复操作。","key_specs":["频率：256Hz / 512Hz / 440Hz（可选）","材质：铝合金（叉体）+ 钢制手柄","精度：±0.5Hz","附件：橡胶锤×1、共鸣箱×1","尺寸：叉体长度约20cm","适用年龄：12岁以上"]}
• alt_products：[{"product_name":"金宝物理实验音叉 256Hz/512Hz/440Hz","brand":"JINBAO/金宝","model":"JB-YC256","price":28},{"product_name":"远大精密音叉 440Hz标准音叉","brand":"YUANDA/远大","model":"YD-440S","price":45},{"product_name":"新华教学音叉套装（256Hz+512Hz+1024Hz）","brand":"XINHUA/新华","model":"XH-TC3000","price":68}]
• kol_quotes：["物理老师王老师：金宝音叉是实验室的'老黄牛'，用了五年音准依然在线。","评测博主@实验控：256Hz敲下去，共鸣箱一放，全班瞬间安静，效果拉满。"]
• scoring_breakdown：[{"source":"word_of_mouth","score":89.19999999999999,"weight":0.2,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户普遍认为该音叉音准准确、做工扎实，敲击后振动持久，适合课堂演示和分组实验。部分教师反馈256Hz型号在共振实验中效果明显，共鸣箱放大声音后全班都能清晰听到。少数用户提到手柄与叉体连接处偶尔有轻微松动，但整体性价比极高，是学校采购的常备款。","source_count":2}},{"source":"objective","score":85.6351515151515,"weight":0.4,"confidence":0.5,"details":{"rating_avg":4.7,"price":28,"wom_score":89.19999999999999}},{"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":["物理老师王老师：金宝音叉是实验室的'老黄牛'，用了五年音准依然在线。","评测博主@实验控：256Hz敲下去，共鸣箱一放，全班瞬间安静，效果拉满。"]}}]
• method_version：v2
• search_visual：null