华师科教 低频音叉 64Hz

评测依据

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• intros：{"brand_intro":"华师科教是华东师范大学旗下教具品牌，依托高校科研实力，专注开发高精度物理实验仪器。品牌以\"科研级、教学用\"为理念，产品多用于大学物理实验室及重点中学创新实验室，在声学、力学领域拥有多项专利，是国内高端教学仪器的代表之一。","product_intro":"这款64Hz超低频音叉专为声波可视化实验设计，频率极低，配合示波器或传感器可清晰显示波形。采用特殊合金材料，振动衰减慢，适合长时间观察。手柄为实木材质，手感温润。附赠专用共鸣箱和频率校准证书，适合大学物理、声学专业教学及科研演示。","key_specs":["频率：64Hz（超低频）","材质：特殊合金","精度：±0.2Hz","手柄：实木","配件：共鸣箱、校准证书","适用：大学物理/声学实验"]}
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