Scientific Instruments
The Series RO-600 Ruthenium Oxide Sensors are thick film resistors which adhere to a single resistance temperature curve, and have a nominal resistance 1,000 Ohms at ambient temperature. They offer excellent performance characteristics in magnetic field environments. These sensors exhibit an initial small negative magnetoresistance at temperatures below 250 mK at low fields (less than about 1.5 Tesla). The magnetoresistance then becomes positive at larger fields and increases at lower temperatures. This magnetoresistance is repeatable. For example, a resistance change of 8% induced by an 8 Tesla field at a temperature of 80 mK corresponds to a temperature error of 7 mK.
No orientation dependence of sensor mounting to field direction has been observed. Ruthenium Oxide sensors are available as uncalibrated, grouping, or calibrated units and feature good reproducibility, fast thermal response time and miniature size, all at a reasonable cost.
The Series RO-105 Ruthenium Oxide Sensors are thick-film resistors which adhere to a single resistanceversus-temperature curve. They offer excellent performance characteristics in magnetic field environments. These sensors do not exhibit magnetoresistance in fields up to 2 T over their range. A small positive (but negligible) magnetoresistance may be present at larger fields. No orientation dependence of sensor mounting to field direction has been observed. Ruthenium oxide sensors are available as uncalibrated, grouping, or calibrated units and feature good reproducibility, fast response time and miniature size, all at a reasonable cost.