光学测距有多种方法,包括 TOF(飞行时间)方法和三角测距方法。它们用于各种用途,例如在自动驾驶汽车中检测周围环境,以及用于机器人和激光测距仪中检测障碍物。滨松为这些测距机理提供各种光电传感器和发光体。我们还可提供符合此类要求的定制规格设备。
直接 TOF 方法通过测量光源发射的脉冲光被物体反射并返回到传感器所花费的时间,以此计算到物体的距离。它包含用于各种测距和紧凑型光学系统的功能。
间接 TOF 方法通过测量受光时序和发光时序之间的相位差来计算到目标物体的距离。 与直接 TOF 方法相比,它为短途测距提供了更高的精度, 不需要时间测量电路,因此电路可实现微型化。
三角测距法通过用光电传感器接收反射在目标物体上的光并检测光入射到其光接收表面上的位置来计算到目标物体的距离。此方法用于短途测距时具有高精度。
用于测距的滨松光电传感器阵容及其应用示例。
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用于短途测距的红外 LED。
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