Thin-film thermocouples. Thermocouples, used for temperature measurements, are based on the thermoelectric effect between two metals. Thin-film versio
Thin-film thermocouples. Thermocouples, used for temperature measurements, are based on the thermoelectric effect between two metals. Thin-film versions (TFTs) are used to measure temperature rises due to the absorption of ultrasound. The TFT is deposited on a thin circular membrane with a diameter of around 50 millimetres. The holding frame is around 85 millimetres across. The overall thickness of the frame is less than 5 millimetres. One junction of the thermocouple is in the centre of the membrane, while the other is near the edge of the frame. Photographed at the National Physical Laboratory, Teddington, UK.
Size: 3634px × 4845px
Photo credit: © ANDREW BROOKES, NATIONAL PHYSICAL LABORATORY/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No
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