March 1,
2023 617 617 
Keller’s 21Y pressure transmitters for cooling the gearbox of wind turbines
September 20,
2021 784 784
Infrared cameras are essential instruments for the quality control of solar cells. One possibility of testing is the periodical modulated exposition of the solar cells to light (Illuminated Lock-In Thermography). The separation of charge within the solar cell leads to leakage current at defective parts and thus to local hot spots. The hot spots can be detected by the infrared camera.