当不同形状的几种产品混合在一条传送带上传送时,可应用气动传感器(反射型)来进行判别。 当传感器2为“通”状态时,可根据传感器1或传感器2的任何一个是否为“通”状态来进行产品的形状判别。只有传感器2为“通”状态时,方可对产品A进行判别,当传感器2和传感器3都为“通”状态时,可对产品B进行判别,当传感器1为“通”状态时即停止 When several products of different shapes are mixed and conveyed on a conveyor belt, the pneumatic sensor (reflective type) can be used for discrimination. When the sensor 2 is in the “on” state, the shape of the product can be discriminated on the basis of whether or not any of the sensor 1 or the sensor 2 is ON. The product A can be discriminated only when the sensor 2 is in the “on” state, and the product B can be discriminated when both the sensor 2 and the sensor 3 are in the “on” state, and stops when the sensor 1 is in the “on” state