长光数显 封闭式光栅尺

评测依据

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• rating_avg：4.3
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• time_range：{"from":"2026-06-25 12:26:06","to":"2026-06-25 12:26:06"}
• intros：{"brand_intro":"长春光机所（长光数显）是中国科学院长春光学精密机械与物理研究所的产业化公司，成立于2000年。依托中科院在光学领域的深厚积累，长光数显是国内光栅尺行业的\"国家队\"。核心技术源自国家\"863计划\"光栅刻划项目，拥有自主知识产权的母版刻线机。品控理念是\"军工品质，民用价格\"，产品通过GJB9001C军标体系认证。长光数显在国内中低端市场占有率超过40%，是经济型数控机床、木工雕刻机、激光切割机的首选。","product_intro":"CG-2000是长光数显针对通用机床市场的增量式封闭光栅尺，定位高性价比。核心卖点：国产自主芯片、IP53防护（防溅水）、以及±10μm精度。相比进口品牌，CG-2000价格仅为海德汉的1/5，且提供3年质保。适用场景：普通车床数显改造、小型铣床、教学设备。用户评价其\"便宜好用\"，但精度和寿命与进口产品有差距。","key_specs":{"测量长度":"100-1200mm","精度等级":"±10μm（可选±5μm）","防护等级":"IP53（防溅水，不可浸泡）","接口":"TTL方波信号，兼容多数国产数显表","最大运动速度":"60m/min","工作温度":"0-45℃"}}
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