Source google image: https://www.researchgate.net/profile/Nicolas_Pousset/publication/278634382/figure/fig4/AS:650823633747968@1532179854492/Schema-de-principe-dun-radiometre-a-substitution-electrique_Q320.jpg
Schema electrique u v w
Source google image: https://www.researchgate.net/profile/Nicolas_Pousset/publication/278634382/figure/fig4/AS:650823633747968@1532179854492/Schema-de-principe-dun-radiometre-a-substitution-electrique_Q320.jpg