| 摘要 |
<p>A thermocouple cable (10) has a positive and negative thermoelement (14) conforming to the standard emf - temperature specification for type K thermocouples, a sheath (12) and compacted ceramic (16) insulating the thermoelements (14) from each other and from the sheath (12). The sheath comprises an oxidation resistant alloy having a thermal coefficient substantially the same as that of the negative thermoelement and a melting point in excess of 1300° C; the sheath preferably being formed from nickel based alloy, such as a nickel-chromium alloy. The positive and negative thermoelements preferably also comprise nickel-based alloys.</p> |
