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TOC (total organic carbon) detection system

A detection system and detector technology, applied in color/spectral characteristic measurement, analytical materials, instruments, etc., can solve problems such as difficulty in extracting weak light signals and difficulty in range adjustment, so as to avoid loss of light intensity, improve resolution, increase The effect of light path

Inactive Publication Date: 2016-09-21
NO 49 INST CHINESE ELECTRONICS SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problems of light scattering, difficult extraction of weak light signals, difficult range adjustment, and limited flow rate existing in ultraviolet absorption TOC detection equipment in the prior art. The present invention provides a TOC detection system

Method used

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  • TOC (total organic carbon) detection system

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specific Embodiment approach 1

[0034] Specific implementation mode one: see Figure 1 to Figure 4 Describe this embodiment, a TOC detection system described in this embodiment, including a green light source 1, No. 1 reflector 2-1, No. 2 reflector 2-2, No. 3 reflector 2-3, and No. 4 reflector Mirror 2-4, green light detector 3, No. 1 lock-in amplifier 4-1, No. 2 lock-in amplifier 4-2, green light processor 5, purple light source 6, purple light detector 7, purple light processor 8, automatic Adapt to the flow rate controller 9, the water sample chamber 10, two sets of light source fixtures with slides and two sets of detector fixtures with slides;

[0035] Green light source 1, green light detector 3, purple light source 6 and purple light detector 7 are arranged on one side of water sample chamber 10, No. 1 reflector 2-1, No. 2 reflector 2-2, No. 3 reflector 2 - No. 3 and No. 4 reflectors 2-4 are arranged on the other side of water sample chamber 10, No. 1 reflector 2-1 and No. 2 reflector 2-2 are symmetr...

specific Embodiment approach 2

[0051] Embodiment 2: The difference between this embodiment and the TOC detection system described in Embodiment 1 is that the No. 1 reflector 2-1, the No. 2 reflector 2-2, and the No. 3 reflector 2- The structures of No. 3 and No. 4 mirrors 2-4 are identical.

specific Embodiment approach 3

[0052] Specific implementation mode three: see Figure 5 Describe this embodiment. The difference between this embodiment and the TOC detection system described in Embodiment 1 is that a constant temperature controller 17 is fixed inside the light source sleeve 15-1 and the circular sleeve 16-1. ;

[0053] Described constant temperature controller 17 comprises temperature sensor 17-1, central controller 17-2 and constant temperature device 17-3, and temperature sensor 17-1 is used for carrying out temperature detection, and the data signal output end of temperature sensor 17-1 and central The data signal input end of the controller 17-2 is connected, and the data signal output end of the central controller 17-2 is connected with the control signal input end of the thermostat 17-3.

[0054] In this embodiment, the constant temperature controller 17 can control the working temperature of the green light source 1, the green light detector 3, the purple light source 6 and the pur...

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Abstract

The invention relates to a sensing system for water quality monitoring, in particular to a TOC (total organic carbon) detection system and solves problems of light scattering, difficulty in weak light signal extraction and range adjustment and flow rate limitation of ultraviolet absorptive TOC detection equipment in the prior art. Green light and purple light are emitted to a water sample chamber, absorbed by water in the water sample chamber, reflected by reflectors and emitted to corresponding detectors, and the light emitted to the detectors is quite weak; the detectors convert optical signals into electrical signals which are amplified through a phase-locked amplifier prior to being sent to corresponding processors, the processors compare a standard value with data obtained after loss resulted from absorption through water in the water sample chamber to obtain a loss difference value, and the content of TOC in water can be obtained by processing of the loss difference value. The TOC detection system is mainly used for water quality monitoring.

Description

technical field [0001] The invention relates to a sensor system for water quality monitoring. Background technique [0002] At present, chemical methods are mostly used in water quality detection, but chemical detection technologies are based on chemical oxidation, and the detection process is cumbersome, complicated, time-consuming, and bulky, which will cause loss of chemical reagents and secondary chemical pollution. Expensive and impossible to monitor in real time. [0003] Ultraviolet absorption method is a physical detection method that does not require chemical reactions. Ultraviolet absorption monitoring can achieve small size, low power consumption, and fast speed. It can monitor water quality online and has a wide range of applications. However, for the current market The existing ultraviolet absorption TOC detection equipment has the problems of light scattering, difficulty in weak light signal extraction, difficulty in range adjustment, and limited flow rate. To...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/31
CPCG01N21/31G01N2201/061
Inventor 付士民陈丽洁黄辉齐娜张鹏桂永雷夏露
Owner NO 49 INST CHINESE ELECTRONICS SCI & TECH GRP
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