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 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Brookes, Andrew / National Physical Laboratory |
Bildgröße: | 3634 px × 4845 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |