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Home >All Instruments
Energy Research Unit Meteorological Data

3m Temperature Probe
Read all about it here...

Graph displaying 5 minute instantaneous results from the 3m Thermometer

About the 3m Temperature ProbeDiagram of R111 (the ERU Control Room) showing the instruments mounted outside. Dr Jim Halliday shown for scale.

Screen (left) inside which is mounted the humidity/temperature probe (right).The temperature probe is mounted 3m above the ground on the ERU Control Room. It is an integral part of a combined Humidity/Temperature Probe.

Temperature is measured by measuring the electrical resistance of a calibrated thermistor (temperature dependent resistor), and is recorded in degrees Celsius.

The humidity/temperature probe and pyranometer are mounted together outside R111The probe is mounted inside a radiation screen to ensure that accurate shade temperature, not direct sunlight temperature, is measured.

Pyranometer (left) and Humidity/Temperature Probe (centre) mounted on the buildingCelsius readings may be converted to Fahrenheit via the calculator:

Updated: 5 November, 2020
Energy Research Unit at Rutherford Appleton Laboratory www.eru.rl.ac.uk
Energy Research Unit
Rutherford Appleton Laboratory
Science & Technology Facilities Council