… The system recognizes the vacancy of seedling by photoelectric sensor, localizes the position
of … Using photoelectric sensor, position sensor and computer logic programming to replace …

A sensor has been designed which detects the presence of a seedling in a tungsten-halogen
light beam scanning over soil. Its operation depends on measuring the ratio of visible to …

… progress of ratiometric photoelectric sensor, including optical … and disadvantages of a
photoelectric sensor were summarized. … and application of the ratiometric photoelectric sensor. …

… To produce a man-machine connection, use a photoelectric sensor to acquire positional
variables, a servo motor to control the screw linearity component slider motion, a stepper motor …

… photoelectric sensor, which is a combination of pyramidal type photoelectric sensor and box
type photoelectric sensor, … The pyramid type photoelectric sensor is outside the box type and …

… photoelectric sensor. The wireless sensor network (WSN) composed of photoelectric sensor
is … The ZigBee node with CC2520 and photoelectric sensor as the core architecture is mainly …

… The industrial robot positioning and automatic charging [29, 30] are discussed on the basis
of fully understanding the principle of the photoelectric sensor, and the hardware circuit of the …

… photoelectric sensor is usually divided into radio-type and reflection type. Reflective photoelectric
sensor … on, will affect the infrared reflective photoelectric sensor operation. Therefore in …

This paper describes the 1990 test of an automatic vehicle classification (AVC) system employing
an inductance detector loop and photoelectric sensors emitting infrared‐spectrum light …

When the light through the smoke and dust, some light would been absorbed and scattered,
leading to attenuation of light intensity. The photoelectric sensor detecting system by …