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Infrared turbidity detection device

A detection device and turbidity technology, which are used in measurement devices, scattering characteristics measurement, material analysis by optical means, etc., can solve the problem of low turbidity measurement accuracy, and achieve the effect of improving turbidity measurement accuracy.

Active Publication Date: 2015-08-19
浙江华泉微电子有限公司
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Problems solved by technology

Due to the relationship between turbidity and light scattering and transmission, at present, the photoelectric method is mainly used to measure turbidity at home and abroad. The principle is to detect the degree of obstruction when light passes through water samples. Environmental interference, so that the accuracy of turbidity measurement is not high

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] In the prior art turbidity detection devices, the light sources used are usually incandescent lamps, tungsten lamps or different light bulb / filter combinations. Due to the wide spectrum of the polychromatic light source, the light scattering effect of different wavelengths is quite different, which leads to the influence of ambient light, and the measurement accuracy is not high. At the same time, the turbidity values ​​measured by different turbidity detection devices lack comparability.

[0031] In order to solve the above technical problems, the present invention proposes an infrared turbidity detection device, see figure 1 , is shown as a functional block diagram of the infrared turbidity detection device of the present invention, including a power supply module, an infrared light emitting module, an infrared light receiving module, a signal amplification mo...

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Abstract

The invention discloses an infrared turbidity detection device which comprises a power module, an infrared light transmitting module, an infrared light receiving module, a signal amplification module, a control module and a display module, wherein the power module is used for outputting constant direct current (DC) voltage; the infrared light transmitting module is arranged above liquid to be detected, and the infrared light transmitted by the infrared light transmitting module is transmitted into the surface of the liquid to be detected in a way of vertical incidence; the infrared light receiving module is used for receiving the light scattered by the liquid to be detected; the signal amplification module is connected with the infrared light receiving module and the control module, and is used for amplifying the signals output by the infrared light receiving module and sending the signals into the control module; the control module is connected with the display module, and is used for receiving the signals of the signal amplification module and controlling the display module to display the information. After the technical scheme is adopted, the influence of chromaticity and background light to turbidity measurement can be eliminated; the infrared light receiving part adopts two-stage amplification, so that the measurement accuracy of the turbidity is improved.

Description

technical field [0001] The invention relates to the technical field of water quality detection equipment, in particular to an infrared turbidity detection device. Background technique [0002] With the continuous improvement of people's living standards, people's requirements for drinking water quality are also constantly improving. Turbidity is one of the important indicators to indicate the quality of water, and it is also an important basis for evaluating the purification efficiency of water treatment equipment and the state of water treatment technology. The turbidity of water is closely related to the following factors: (1) the content of suspended solids and colloidal substances (collectively referred to as turbidity) in water; (2) the content of heavy metals in water; (3) the content of organic pollutants (organic carcinogens) in water; therefore, the content of water Turbidity detection, especially online detection is very important. [0003] A turbidimeter is an i...

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Application Information

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IPC IPC(8): G01N21/49G01N21/01
Inventor 刘海銮楼哲艺樊凌雁骆丹君
Owner 浙江华泉微电子有限公司
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