Temperature Correction: Get Accurate Wall Surface Temperature

  • Context: Undergrad 
  • Thread starter Thread starter Minka Aduse-Poku
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SUMMARY

The discussion focuses on correcting temperature readings obtained from an ibutton sensor attached to a concrete wall, which is affected by sunlight exposure. The user has collected data over four months and seeks methods to adjust for the influence of solar irradiance on the readings. Key factors mentioned include the average irradiance of the location, specific heat of Stainless Steel 305, and the concrete wall. Suggested methods for correction include shading the sensor and comparing readings from sunny and cloudy days.

PREREQUISITES
  • Understanding of thermal properties, specifically specific heat of materials.
  • Knowledge of solar irradiance measurement techniques.
  • Familiarity with temperature measurement devices, particularly ibutton sensors.
  • Basic principles of heat transfer and environmental effects on temperature readings.
NEXT STEPS
  • Research methods for shading temperature sensors to minimize solar impact.
  • Explore techniques for comparing temperature readings under varying weather conditions.
  • Learn about the specific heat capacities of different materials and their influence on temperature readings.
  • Investigate data correction algorithms for temperature data affected by environmental factors.
USEFUL FOR

This discussion is beneficial for environmental scientists, engineers involved in thermal analysis, and anyone conducting temperature measurements in outdoor settings, particularly those using ibutton sensors.

Minka Aduse-Poku
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Dear All,
I have collected temperature data for a period of about 4 months with a device called ibutton attached to the surface of a concrete wall. My problem is the button is made of Stainless steel 305 and exposed to sunlight.
I am interested in obtaining the wall surface temperature and at the same time i know the effect of the sunlight would affect temperature readings (if i am not wrong).
does anyone know or have an idea on how i can correct these readings if i have to?
 
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Data available to me at the moment are: average irradiance of the location, specific heat of the stainless steel 305 and that of the concrete wall (including temperature values)
 
Can you shade the temperature sensor and compare readings in and out of sunlight? Or can you compare readings on cloudy days vs clear days?
 

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