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Multistage symmetric amplification type digital photoelectric detection system

A photoelectric detection and symmetry technology, applied in measurement devices, material analysis by optical means, instruments, etc., can solve problems such as interference and noise, and achieve the effects of improving detection accuracy, high linearity, and improving conversion efficiency

Inactive Publication Date: 2015-11-11
NINGBO MOMI INNOVATION WORKS ELECTRONICS TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the defect that the traditional photoelectric detection system is easy to generate interference noise, and to provide a multi-stage symmetrical amplification digital photoelectric detection system

Method used

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  • Multistage symmetric amplification type digital photoelectric detection system
  • Multistage symmetric amplification type digital photoelectric detection system
  • Multistage symmetric amplification type digital photoelectric detection system

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Embodiment

[0023] Such as figure 1 As shown, the multi-stage symmetrical amplified digital photoelectric detection system of the present invention consists of a light source 1, a digital photosensitive module 4, an optical filter 2 connected to the light source 1, a receiving module 3 connected to the optical filter 2, and a digital The CPU 5 connected to the photosensitive module 4 and the multi-stage symmetrical amplification module 6 arranged between the digital photosensitive module 4 and the receiving module 3 are composed.

[0024] Wherein, the light source 1 is used to continuously emit light beams to the detection target, which can be realized by using light emitting diodes or laser diodes. The receiving module 3 is used to receive the light beam reflected by the detected target, and analyze the light beam to confirm whether the reflected light beam is the light beam emitted by the light source 1, which can be realized by using a photodiode or a phototransistor. In this embodime...

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Abstract

The invention discloses a multistage symmetric amplification type digital photoelectric detection system which is composed of a light source (1), a digital photosensitive module (4), an optical filter (2) connected with the light source (1), a receiving module (3) connected with the optical filter (2) and a CPU (5) connected with the digital photosensitive module (4). The multistage symmetric amplification type digital photoelectric detection system is characterized in that a multistage symmetric amplification module (6) is further arranged between the digital photosensitive module (4) and the receiving module (3). According to the multistage symmetric amplification type digital photoelectric detection system, detection signals are subject to digital transmission and processing, so that interference noise generated in the signal processing or transmission process can be reduced to a large extent, the mixing of useful signals and the interference noise is avoided, and accordingly the detection precision of the multistage symmetric amplification type digital photoelectric detection system is effectively improved. The multistage symmetric amplification type digital photoelectric detection system can perform amplification processing on received photoelectric signals, and accordingly the photoelectric signal conversion efficiency is improved.

Description

technical field [0001] The invention relates to a photoelectric detection system, in particular to a multi-stage symmetrical amplification digital photoelectric detection system. Background technique [0002] In the automatic online detection system, it is divided into two categories: optical detection system and electrochemical detection system. Compared with electrochemical detection, the method of photoelectric detection is non-contact detection, which does not need to contact with corrosive detection liquid, which facilitates the maintenance of the instrument and prolongs the service life of the detector. Therefore, photoelectric detection is widely used in industrial production. [0003] Photoelectric detection mainly converts the signal intensity of light into the corresponding electrical signal intensity, and calculates various parameters of the detected object through the change of photovoltage value. However, traditional photoelectric detection systems are prone t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/01
Inventor 刘霖杨先明邱会中张晓奕刘永罗颖
Owner NINGBO MOMI INNOVATION WORKS ELECTRONICS TECH
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