日本MITUTOYO三丰AT112光栅尺539系列极细长型技术参数：光栅刻度间距 20um 参考点步距 50mm 最大响应速度 72m/min 尘/水防护等级 达到IP53防护标准 工作温度 0℃至45℃性能参数貨號-標准型 型号 貨號-高精度型 測量范圍 電缆長度539-251 AT112-50 539-251-10 50mm(1.5 ) 3m539-252 AT112-70 539-252-10 70mm(2.5 ) 3m539-253 AT112-120 539-253-10 120mm(4.5 ) 3m539-254 AT112-170 539-254-10 170mm(6.5 ) 3m539-255 AT112-220 539-255-10 220mm(8.5 ) 3m539-256 AT112-270 539-256-10 270mm(10.5 ) 3m539-257 AT112-320 539-257-10 320mm(12.5 ) 3m539-258 AT112-370 539-258-10 370mm(14.5 ) 3m539-259 AT112-420 539-259-10 420mm(16.5 ) 3m539-260 AT112-470 539-260-10 470mm(18.5 ) 3m539-261 AT112-520 539-261-10 520mm(20 ) 3m539-262 AT112-570 539-262-10 570mm(22 ) 3m539-263 AT112-620 539-263-10 620mm(24 ) 3m539-264 AT112-670 539-264-10 670mm(26 ) 3m539-265 AT112-720 539-265-10 720mm(28 ) 3m539-266 AT112-770 539-266-10 770mm(30 ) 3m539-267 AT112-820 539-267-10 820mm(32 ) 3m539-268 AT112-920 539-268-10 920mm(36 ) 3m539-269 AT112-1020 539-269-10 1020mm(40 ) 3m