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巴鲁夫是一个世界领先的传感器制造商，提供创新和实际检测解决方案，为汽车行业、冶金行业、机床行业、风电行业提供广泛的应用。
产品包括了BNS电子式和机电式行程开关系列、BOS光电开关、BES感应式接近开关、BCS电容开关、BMF磁敏开关、BTL直线位移传感器、RFID识别系统以及BNI总线模块等产品。在广阔的工业应用领域，尤其是机械装备领域为用户提供创新的、有经验的传感器运用方案。
 巴鲁夫光电传感器标准类型：
1）漫反射型：一般型或能量型 (-8)，聚焦式 (-8-H)，带背景抑制功能型 (-8-H)
，带背景分析功能型 (-8-HW)
2）反射板型：一般型 (-6)，带偏振滤波功能型 (-54, -55)，带透明体检测功能型 (-54-G)，带前景抑制功能型 (-54-V)
3）对射型
4）槽型
5）光纤传感器：塑料光纤型，玻璃光纤型
6）色标传感器，颜色传感器，荧光传感器
7）光通讯
8）激光测距：三角反射原理型，相位差原理型，时间差原理型
9）光栅
10）防爆/隔爆型
主要特点
型号系列
21M
尺寸
15 x 50 x 42.5 mm
接口
PNP常开触点 (NO)PNP常闭触点 (NC)
功能原理
光电传感器
功能原理，光学
漫反射型传感器，能量型
辐射特性
发散
光线类型
LED，红光
作用范围
10~1000 mm
接口
插接器，M12x1插头，4针
外壳材料
锌，压铸铝
感应面，材料
PMMA
工作电压Ub
10~30 VDC
许可/一致性
CE, cULus, EAC, WEEE

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