Planar Multijunction Thermal Converters with Increased Sensitivity Operated in Hermetically Sealed Housings Filled with Noble Gas
- Resource Type
- Conference
- Authors
- Funck, Torsten; Spiegel, Thomas; Ihring, Andreas
- Source
- 2018 Conference on Precision Electromagnetic Measurements (CPEM 2018) Precision Electromagnetic Measurements (CPEM 2018), 2018 Conference on. :1-2 Jul, 2018
- Subject
- Fields, Waves and Electromagnetics
Thermal conductivity
Sensitivity
Krypton
Xenon
Resistance heating
Thermal resistance
AC-DC transfer
housing
krypton
noble gas
sensitivity
thermal converter
xenon
- Language
- ISSN
- 2160-0171
The sensitivity of planar multijunction thermal converters (PMJTCs) was significantly increased by filling the housing with noble gases, preferably xenon or krypton. The performance was observed for more than one year and no degradation of sensitivity was found. Also the frequency response of the AC-DC transfer difference remains unchanged at high frequencies and even improves below 40 Hz. Using the lowest at present manufacturable heater resistance of $90 \ \Omega$ with the noble gas filling, AC-DC transfer down to less than 70 mV compared to about 100 mV in air becomes possible.