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Lake Shore Temperature Sensors, Negative Temperature Coefficient RTD's

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Lake Shore Temperature Sensors, Negative Temperature Coefficient RTD's

LakeShore

CernoxTM
Cernox sensors can be used from 100mK to 420K with good sensitivity over the whole range. They have a low magnetoresistance, and are the best choice for applications with magnetic fields up to 30T (for temperatures greater than 2K). Cernox are resistant to ionising radiation, and are available in robust mounting packages and probes.

Because of their versatility, they are used in a wide variety of applications, such as particle accelerators, space satellites, MRI systems, cryogenic systems, and research science.

Germanium
Germanium RTD's have the highest accuracy, reproducibility, and sensitivity from 0.05K to 30K (some models useful up to 100K). They are resistant to ionising radiation, but are not recommended for use in magnetic fields. Germanium RTD's are used mostly in research settings when the best accuracy and sensitivity are required. Germanium and Ruthenium Oxide are the only two sensors that can be used below 100mK.

Ruthenium Oxide
Ruthenium Oxide RTD's can be used to below 50mK. Their unique advantage is that they have a low magnetoresistance and follow a standard curve. Their upper temperature range is limited to 40K, and CernoxTM are better in magnetic fields above 2K. Ruthenium Oxide sensors are used for applications that require a standard curve in magnetic fields, such as MRI systems. Along with Germanium, they are the only sensors that can be used below 100mK.

Read more on Lake Shore's website