CHAPTER 5: TEMPERATURE MEASUREMENT Click on any of the links below to download high resolution pdfs of any figure FIG. 5.1: Metallic resistance thermometers: resistance vs. temperature characteristics FIG. 5.2: Semiconductor-like resistance thermometers: resistance vs. temperature curves FIG. 5.3: Voltage-thermometer characterisitics: diode sensors and thermocouples FIG. 5.4: Capacitance thermometers FIG. 5.5: Comparison of dimensionless sensitivity of various commercial cryogenic thermometers FIG. 5.6: Normalized temperature resolution of commercial cryogenic thermometers, deltaT/T FIG. 5.7: Temperature errors from magnetic field: comparison of various sensors FIG. 5.8: Detailed temperature error curves at different magnetic fields for various zirconiumÐoxynitride thermometers FIG. 5.9: Detailed temperature error curves at different magnetic fields for a range of carbon-glass-resistance thermometers FIG. 5.10: Detailed temperature error curves at different magnetic fields for platinum-resistance thermometers FIG. 5.11: Arrangement for removing thermometer canisters greased in place without damage FIG. 5.12: Bolt-on copper bobbin and copper block for thermally anchoring thermometers and leads FIG. 5.13: Ideal arrangement for thermometer location FIG. 5.14: Schematic diagram of a four-lead thermometer measurement FIG. 5.15: OnÐoff temperature controller operation FIG. 5.16: Proportional controller operation FIG. 5.17: Typical packaging for wire-wound platinum or rhodiumÐiron resistance thermometers FIG. 5.18: Typical strain-free mounting for carbonÐglass and germanium resistance thermometers References: Listing of all References for Chapter 5 Figures
