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Laser method for measuring water quality and measurer therefor

A measurement method and laser technology, applied in measurement devices, instruments, scientific instruments, etc., can solve the problems of less information, increased measurement costs, and low measurement efficiency.

Inactive Publication Date: 2009-01-28
HARBIN ENG UNIV
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  • Abstract
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Problems solved by technology

It reflects the characteristics of water quality by measuring some physical parameters of a certain position in the water body, and can realize online measurement, but one measurement can only obtain the water quality parameters of a local point of the water body, the amount of information is small, and the measurement efficiency is not high; The measurement of multi-point water quality parameters in the region often takes a long time, which increases the cost of measurement

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  • Laser method for measuring water quality and measurer therefor
  • Laser method for measuring water quality and measurer therefor
  • Laser method for measuring water quality and measurer therefor

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Embodiment Construction

[0010] Preferred embodiments of the present invention are given below and described in conjunction with the accompanying drawings.

[0011] like figure 1 As shown, the laser water quality measuring instrument includes a control unit (1), a pseudo-random signal generation and synchronization processing unit (2), a D / AC unit (3), a signal conditioning unit (5), an A / DC unit (6), an optical Transmitting device (14) and optical receiving device (15); Wherein, control unit (1) sends control signal to pseudo-random signal generation and synchronous processing unit (2); And through D / AC unit (3), driver (17 ) is connected with the optical transmitting device (14), and connected with the optical receiving device (15) via the A / DC unit (6) and the signal conditioning unit (5).

[0012] The control unit (1) can be a DSP, a single-chip microcomputer or other computer systems, and it transmits control signals to the pseudo-random signal generating and synchronous processing unit (2). Ps...

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Abstract

The invention relates to a laser water quality detecting method and relative detector, which can via the on-line detection on each layer of water to attain the water quality in one dimension and different layers as the backward disperse water intrinsic curve; and via extracting information from said curve, attain the adsorb parameter, disperse parameter, and turbidity of water. Wherein, said intrinsic curve can be used in underwater depth measure and the detection and prediction of red tide. The invention comprises a control unit, a false random signal generate synchronous processing unit, a D / AC unit, a signal modulate unit, an A / DC unit, an optical emitter and an optical receiver. The invention has large information processing amount, high detecting efficiency, while it can reduce detecting time and cost when detecting large-scale water.

Description

technical field [0001] A laser water quality measurement method and its measuring instrument are used for the measurement of physical indicators such as water body absorption coefficient, scattering coefficient and turbidity, as well as water depth measurement and red tide monitoring and forecasting. Background technique [0002] Water quality analysis includes two aspects: chemical analysis and physical analysis; the former mainly focuses on the chemical substances contained in water, especially the composition and magnitude of chemical substances harmful to human body, while the latter is mostly related to suspended solids in water, which directly Affects physical indicators such as water body absorption coefficient, scattering coefficient and turbidity. These indicators related to the appearance of water bodies also reflect the quality of industrial and residential water, which is directly related to the physical and mental health of the people. For this reason, the Mini...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/17
Inventor 温强温文智国宁宋丽梅黄玉
Owner HARBIN ENG UNIV
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