How to convert electrical conductivity to pH

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SUMMARY

The discussion focuses on converting electrical conductivity (EC) measurements to pH values using Arduino programming. The user provides specific ADC values corresponding to different EC levels: 80 for 0.2 mS/cm, 90 for 0.5 mS/cm, and 110 for 0.7 mS/cm. It is established that the relationship between pH and conductivity is complex, and additional resources are recommended for further understanding. The conversation emphasizes the need for a deeper exploration of the conversion methods and relevant equations.

PREREQUISITES
  • Understanding of electrical conductivity (EC) measurements
  • Familiarity with Arduino programming and ADC (Analog to Digital Converter) values
  • Basic knowledge of pH measurement principles
  • Awareness of the relationship between pH and conductivity
NEXT STEPS
  • Research methods for converting electrical conductivity to pH values
  • Explore Arduino libraries for pH and EC measurement
  • Study the mathematical models that describe the relationship between pH and conductivity
  • Investigate calibration techniques for pH sensors in relation to EC readings
USEFUL FOR

Students, hobbyists, and professionals involved in environmental science, chemistry, or electronics who are interested in measuring and interpreting pH levels from electrical conductivity data.

Minh Thanh

Homework Statement


I have some data from measuring EC in solutions and I don't know how to convert EC to pH

Homework Equations

The Attempt at a Solution


I use Arduino for programing. Values of ADC of EC that I collect from microcontroller are 80 ( for EC : 0.2mS/cm ) , 90 ( for EC : 0.5mS/cm), 110 ( for EC 0.7mS/cm) .
 
Physics news on Phys.org
The relationship between pH and conductivity is a complex one. Here is an article which may be of assistance.
 
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