Design and implementation of 2 channels turbidity sensor modules

Park, Joongki; Park, Kyunchul; Han, Kipung; Park, Kwangro

doi:10.1109/urai.2013.6677307

Cited by 5 publications

(2 citation statements)

References 12 publications

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“…An experiment for a visible light pair system was carried out by Omar and Matjafri (2009), Ebie et al (2006), Chang and Wu (2013) and Park et al (2013) to investigate the turbidity level. Omar and Matjafri (2009) used three different modes of measurement configuration: backscattering, transmittance (0°s cattering) and 90°scattering.…”

Section: Visible Light Pair Systemmentioning

confidence: 99%

A review on the design and development of turbidimeter

et al. 2015

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Purpose – This paper aims to present a review of the design and development of the turbidimeter for measuring the turbidity level in water. Monitoring the turbidity level of water is important because it is related to public health. Design/methodology/approach – A precise and reliable turbidimeter can provide vital data that reveals the water condition level. Several turbidimeter units are discussed briefly. Three types of turbidimeter design – single beam, ratio and modulated four beams – are elaborated with some illustrations of the design concept. Various improvements and innovations for upgrading turbidimeter design are also discussed. Findings – This paper elaborated on a new method of estimating the water turbidity level in water samples using an optical tomography system based on the independent component analysis method. The results showed that a tomography-based turbidimeter can measure slight changes in the level of turbidity when the volume of contaminants is changed slightly. The turbidimeter can also provide a profile of the distribution of the turbidity in the water sample. Originality/value – A turbidimeter based on the optical tomography concept can be a valuable tool in determining the level of pollution in rivers, sea, etc.

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Section: Visible Light Pair Systemmentioning

confidence: 99%

A review on the design and development of turbidimeter

et al. 2015

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“…Figure 7 demonstrate the phys chip. The area is 1.01 × 1.01 mm 2 proposed CMOS turbidity to f 1, and 10000, simulation results of (a) 1.5 (b) 2.2 (c) 3.0 V. hip under ideal, without, and with ge is from 1.5 to 992 NTU. nce of the proposed CMOS with calibration circuits are hrough SPICE simulations.…”

Section: Circuit Descriptions and Simulationmentioning

confidence: 99%

A CMOS turbidity to frequency converter with calibration circuits for detecting turbidity applications

Chiang

Huang

2015

2015 IEEE International Conference on Mechatronics and Automation (ICMA)

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In this paper, a CMOS turbidity to frequency converter with calibration circuits for detecting turbidity applications is newly proposed. A calibration technique is proposed in this work. Another innovation is that the outputs of the proposed chip are directly digitized, they could be easily sent over a wide range of transmission media, such as PSN, radio, optical, IR, ultrasonic, and etc. Before performing the proposed calibration circuits, the maximum linear error is 25.82%. After calibration, the maximum linear error is reduced to 0.89%. The turbidity ranges from 1.5 to 992 Nephelometric Turbidity Units (NTU), and its corresponding output frequency range is 24.875 to 18.214 kHz. The chip area is 1.01 × 1.01 mm 2 . The proposed chip is suitable for devices of measuring water turbidity.

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