Welding the junctions of a platinum/rhodium- platinum alloy thermocouple, using a specially- designed microwelding torch. A thermocouple consists of t

---

Welding the junctions of a platinum/rhodium- platinum alloy thermocouple, using a specially- designed microwelding torch. A thermocouple consists of two lengths of dissimilar metals joined at each end to form an electric circuit. If the two junctions are kept at different temperatures a voltage flows between them. This thermoelectric effect allow a thermocouple to be used as a thermometer when coupled to a suitable meter. Photographed at a Johnson Matthey location in Sunnyvale, California, USA. THIS PHOTOGRAPH IS THE COPYRIGHT OF JOHNSON MATTHEY PLC.

---

Size: 4096px × 3333px
Photo credit: © MALCOLM FIELDING, JOHNSON MATTHEY PLC/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: bonding, microwelding, technology, thermocouple, weld