Omron Corporation

Koji Kosaka

Hideyoshi Nakamura

Atsushi Iwamoto

Susumu Mizuhara

A photoelectric sensor comprises a control unit which is configured to store in a memory data on the amount of received light input from a light-receiving unit or measurement data obtained by a measuring process, and to perform a sampling process in which the data stored in the memory are read at fixed intervals as sampling data, the sampling process being performed within a limited reading period. Further, the control unit outputs the thus read sampling data so as to correspond to the order in which they are stored in the memory.

Photoelectric sensor and method for aiding operational checking of photoelectric sensor

A photoelectric sensor comprises a control unit which performs a measuring process for data on an amount of light input from a light-receiving unit. The control unit measures the length Tof period (from point a to point d) from when measurement data starts to change in the direction of a threshold Pto when the amount of received light returns to the level at which the measurement data started to change, and the length Tof period (from point b to point c) for which the detection signal is ON-level. The control unit then outputs information on a margin for Twith respect to Ton a display unit provided for the photoelectric sensor or to an external device in order to display them.

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Ayabe, Japan

Koji Kosaka