Study on Photoelectric Sensor to Detect the Concentration of SO42-

DOI

10.2991/icadme-15.2015.81How to use a DOI?

Keywords

electrolyte, concentration detection, photoelectric sensor, SO42-

Abstract

We’ve designed a photoelectric sensor to detect the concentration of SO42- solution with a vertical capsule which was immersed into sample solution derectly. The system contains a pair of light-emitting diode (LED) and photosensitive diode (PIN) packaged with cover of semi-sphere shape. Theoretical analysis and experimental results have shown that the relative transmission rate of the system was almost proportional to the concentration of solution; which meant that the more concentrated the solution was, the less the relative transmission rate would be. In our experiments, the concentration of SO42- solution can be detected within the range of 0-3.441mol/L by using a LED with a central wavelength of 940nm. We have also confirmed that the concentration of Zn2+ ( 3.441 mol/L), Cu2+ ( 0.5627 mol/L) and H+ ( 2.015 mol/L) had tiny effects on the detection results of SO42- concentration.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Ni Feng
AU  - Ni Ruodan
PY  - 2015/10
DA  - 2015/10
TI  - Study on Photoelectric Sensor to Detect the Concentration of SO42-
BT  - Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering
PB  - Atlantis Press
SP  - 403
EP  - 409
SN  - 2352-5401
UR  - https://doi.org/10.2991/icadme-15.2015.81
DO  - 10.2991/icadme-15.2015.81
ID  - Feng2015/10
ER  -