Jacques Arsene d'Arsonval

Jacques Arsene d'Arsonval (June 8 1851 - December 13 1940) was a French biophysicist and inventor of the thermocouple ammeter and moving-coil galvanometer. Along with Nikola Tesla, d'Arsonval was an important contributer to the emerging field of electrophysiology, the study of the effects of electricity on biological organisms , in the nineteenth century.