Title :
High resolution thermometers based on Pd(Mn) for studies of critical phenomena aboard the ISS
Author :
Day, Peter ; Adriaans, Mary Jayne ; Klemme, Beverly ; Sergatskov, Dmitri ; Duncan, Robert
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
Abstract :
A high resolution thermometer (HRT) was developed using a dilute alloy of Mn in Pd as the magnetic sensing element instead of the traditional paramagnetic salt. Use of the alloy material facilitated a significant decrease in the total mass of the device to about 3.5 g. The noise and drift of the device were measured and found to be comparable with that of the larger HRTs used on past flight experiments. The origin of the noise observed in state-of-the-art HRTs and the potential of the new thermometric material for achieving lower noise figures is discussed
Keywords :
critical phenomena; manganese alloys; noise; palladium alloys; thermometers; 3.5 g; ISS; International Space Station; Pd-Mn; Pd-Mn alloy material; critical phenomena; drift; flight experiments; high resolution thermometers; magnetic alloy; magnetic sensing element; noise figure; thermometric material; Extraterrestrial measurements; Helium; Impurities; Laboratories; Magnetic flux; Magnetic materials; Noise figure; Paramagnetic materials; Superconducting magnets; Superconducting transition temperature;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1999. IMTC/99. Proceedings of the 16th IEEE
Conference_Location :
Venice
Print_ISBN :
0-7803-5276-9
DOI :
10.1109/IMTC.1999.776785
