A kind of optical signal receiving device and photoelectric detection equipment

Abstract

The invention provides an optical signal receiving device and photoelectric detection equipment. The optical signal receiving device comprises a current-voltage conversion unit, a filtering unit and asignal acquisition unit, wherein the current-voltage conversion unit is used for receiving an optical signal and converting the received optical signal into a voltage signal, and the voltage signal comprises an alternating current component, a direct current component and a noise component; the filtering unit is connected with an output end of the current and voltage conversion unit and used foracquiring the direct current component and the noise component through low-pass filtering; and the signal acquisition unit is connected with the output end of the current-voltage conversion unit and an output end of the filtering unit, and acquires the alternating current component through performing a differential operation on the voltage signal outputted by the current-voltage conversion unit and the direct current component and the noise component which are outputted by the filtering unit. The optical signal receiving device is low in cost and simple in structure, increases the stability and reliability of the output signal and improves the accuracy of the photoelectric detection equipment.

Description

technical field

[0001] The invention relates to the field of photoelectric detection, in particular to an optical signal receiving device and photoelectric detection equipment. Background technique

[0002] Photoelectric technology is a high-tech that closely combines traditional optical technology with modern electronic technology and computer technology. ) important means.

[0003] As we all know, the existing photoelectric detection device includes a light emitting unit and a light receiving unit, and it is more common to use a laser transmitter and a laser receiver. The laser transmitter is used to transmit laser signals, and the intensity of the laser signal is controlled by the intensity of the electrical signal; the laser receiver receives the laser signal from the laser transmitter and converts it into a corresponding electrical signal according to the signal intensity of the laser signal. Each detected parameter is calculated from the intensity variation of the el...

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