我们通常也把这种传感器称为接近式传感器。发射器的发射光照在检测物上后,以任意角度散射。接收器接收到其中的一些光(当接收光强大于开关阀值时)后开关触发,即检测到物体。一般来说,与检测距离有关的因素有:检测物的颜色、尺寸及光泽度等等。传感器的实际检测距离是以“白色测试板”为基准的。白板的反射率为90%,通常被当作“标准检测物”。深色或不光滑的检测物通常反射率较低;因此在检测此类物体时,必须增大传感器的灵敏度或是将传感器移近检测物。此时,必须留意背景物体比检测物更亮的情况,结果可能会检测到背景物体(而忽略实际检测物)。
我们有以下类型的漫反射型传感器:
带背景抑制功能的漫反射型传感器:此类传感器为检测物限定了检测距离,而与检测物的颜色、反射率及光泽度无关。它能够检测直接放置在亮背景上的暗色物体,且安装调节也很方便。
聚焦式漫反射型传感器:聚焦式传感器通过对透镜的调节将发射器与接收器的聚焦点固定在同一位置,该设计有利于屏蔽背景的干扰,同时小光斑的设计缩小了在检测黑色和白色目标物时的距离差。
带背景处理功能的漫反射型传感器:此类传感器只对背景反射回的光进行分析(譬如:地板)。如果传感器检测不到背景,输出将改变状态。此类传感器一般应用于对不规则形状的物体进行检测的情况,此时使用者通常难以确定物体反射光反射回传感器的具体位置。
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DK10-9,5/92/110
DK12-11/124/136
DK20/35A/9S20 9.137 003
DK20/35B 9.137 013
DK20/35B/79B 9.137 014
DK20-25/110/124
DK20-25/A/110/124
DK20-25/B/110/124
DK20-9,5/110/124
DK20-9,5/79B/110/124
DK20-9,5/A/110/124
DK20-9,5/A/79B/110/124
DK20-9,5/B/110/124
DK20-9,5/B/79B/110/124
DK21-25/110/124
DK21-25/B/110/124
DK21-9,5/110/124
DK21-9,5/A/110/124
DK31-9,5/110/124
DK34-9,5/110/124
DK34-9,5/8s50/110/124
DK35-9,5/110/124
RL-UV3/32/92
RL-UV3/45/115
RL-UV4/32/92
PLVScanP08-0300-42/47/139
PLVScanP08-0340-48/47/139
PLVScanP16-0300-20/47/139
PLVScanP16-0640-42/47/139
PLVScanP16-0728-48/47/139
PLVScanP16-0728-48/47/86
PLVScanP24-0980-42/47/139
PLVScanP24-1116-48/47/139
PLVScanP24-1116-48/47/86
PLVScanP32-0620-20/47/139
PLVScanP32-1320-42/47/139
PLVScanP32-1504-48/47/139
PLVScanP40-1660-42/47/139
PLVScanP40-1892-48/47/139
PLVScanP48-0940-20/47/139
PLVScanP48-0940-20/47/86
PLVScanP48-2000-42/47/139
PLVScanP48-2000-42/47/86
PLVScanP48-2280-48/47/139
PLVScanP56-2340-42/47/139
PLVScanP56-2340-42/47/86
PLVScanP56-2668-48/47/139
PLVScanP64-1260-20/47/139
PLVScanP64-1260-20/47/86
PLVScanP64-2680-42/47/139
PLVScanP64-2680-42/47/86
PLVScanP64-3056-42/47/139
PLVScanP64-3056-42/47/86
DAD15-8P
DAD15-8P/35
DAD30
DAD30/35
DAD30-RT
DAD30-RT/35
DAD30-W
LS230-DA
LS230-DA-RT
LS610-DA-IBS/F1
LS610-DA-IBS/F1/146
LS610-DA-IBS/F1/35
LS610-DA-IBS/F2
LS610-DA-IBS/F2/146
LS610-DA-IBS/F2/35
LS610-DA-P/F1
LS610-DA-P/F1/146
LS610-DA-P/F1/35
LS610-DA-P/F2
LS610-DA-P/F2/146
LS610-DA-P/F2/35
LS611-DA-P
LS611-DA-P/35
VDM18-100/20/122/151
VDM18-100/20/88/122/151
VDM18-100/32/105/122
VDM18-300/20/122/151
VDM18-300/20/88/122/151
VDM18-300/32/105/122
VDM35-6-L/20/105/122
VDM35-30-R/20/105/122
VDM70-10-L/87/122/160
VDM70-250-R/20/87/160