Thermopile 熱電堆 vs Thermocouple 熱電偶

https://www.miepl.com/technical-education-news-description/difference-between-thermopile-and-thermocouple/11222#:~:text=Moreover%2C%20the%20thermopile%20is%20a,a%20contact%2Dbased%20temperature%20sensor.

熱電堆  are Thermocouple connected in series, hundreds of millivolt vs tens of millivolt in voltage output