Photoelectric sensor detection circuit and detection equipment

The invention discloses a photoelectric sensor detection circuit and detection equipment. The detection circuit comprises a transmitting unit, a receiving unit and a main control unit connected with the transmitting unit and the receiving unit. The transmitting unit is used for transmitting a VESEL laser signal; the receiving unit is used for receiving laser signals through two paths of PD receiving tubes which are arranged in parallel, converting the received two paths of laser signals into voltage signals, and transmitting the voltage signals to the main control unit after filtering differential amplification; the main control unit is used for comparing the voltage signal subjected to differential amplification with a preset threshold value so as to judge whether a target detection object exists or not; the photoelectric sensor further comprises an output protection unit and an indicator light unit, the output protection unit is used for providing output short-circuit protection for the detection circuit, t