Design of a High Resolution and Dual-Path Optical Water Turbidimeter

Xia Fei; Jun Yao; Wei Li; Wei Qiang Xue; Shao Hua Zhang

doi:10.4028/www.scientific.net/AMM.577.713

Paper Titles

Detection of Wear Condition of Micro Milling Cutters Based on Length Fractal Dimension
p.697

Research on Excitation & Measurement Strategy of Tuber Electrical Resistance Tomography System
p.701

Simulation Study of Tuber Electrical Resistance Tomography System
p.705

Polar Ocean Observation Buoys Seal Failure Research Based on ARMA Theory
p.709

Design of a High Resolution and Dual-Path Optical Water Turbidimeter
p.713

Research of Laser Method for Measuring One Type of Ammunition Assembly Angle
p.717

Finite-Element Analysis of a Measuring Model for FeAlCrBSiNb Coating Bonding Strength of Revolution Body
p.722

Detection of Broken Rotor Bars in Squirrel Cage Induction Motor Using Filter and Wavelet Analysis
p.726

The Field Experiments for Mixed Vehicle-Carrying Signals Acquisition Based on the Compact RIO
p.735

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 577Design of a High Resolution and Dual-Path Optical...

Design of a High Resolution and Dual-Path Optical Water Turbidimeter

Abstract:

We have designed a high resolution and dule-path optical turbidimeter. The right angle scatted light turbidimeter is mainly for water in low turbidity levels, especially for drinking water. Mechanical design of the optoelectronic receiving room and the realizing circuit for modulation and demodulation are described in detail. To achieve good linearity in the measuring range from 0 to 5 NTU, pulse width modulation (PWM) and demodulation techniques are proposed, in this way, low temperature-drift and good anti-jamming ability can be obtained without the interference of background light. To improve the precision, the ratio algorithm which measures the ratio of the scattered light and reflected light is introduced in a dule-path optical system so that the interference of light emission can be eliminated effectively. Through the analysis and comparison of the experimental results, the linearity is improved by the ratio algorithm with a correlation coefficient for about 0.99932.

You might also be interested in these eBooks

Applied Decisions in Area of Mechanical Engineering and Industrial Manufacturing

View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volume 577)

Pages:

713-716

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.577.713

Citation:

Cite this paper

Online since:

July 2014

Authors:

Xia Fei*, Jun Yao, Wei Li, Wei Qiang Xue, Shao Hua Zhang

Keywords:

Dule-Path Optical Turbidimeter, PWM, Right Angle Scatted Light

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] Ahmad Fairuz Bin Omar, Mohd Zubir Bin MatJafri: Turbidimeter Design and Analysis: A Review on Optical Fiber Sensors for the Measurement of Water Turbidity(Sensors Malaysia 2009).

DOI: 10.3390/s91008311

Google Scholar

[2] Kai Zhang, Yujun Zhang, Gaofang Yin: submitted to Journal of Atmospheric and Environmental Optics China in Chinese. (2012).

Google Scholar

[3] Information on http: /www. hach. com.

Google Scholar