Response to “Comment on ‘A versatile thermoelectric temperature controller with 10 mK reproducibility and 100 mK absolute accuracy”’ [Rev. Sci. Instrum. 80, 126107 (2009)] | Zendy

Kenneth G. Libbrecht | Zendy; A. W. Libbrecht | Zendy

Open Access

Response to “Comment on ‘A versatile thermoelectric temperature controller with 10 mK reproducibility and 100 mK absolute accuracy”’ [Rev. Sci. Instrum. 80, 126107 (2009)]

Author(s) -

Kenneth G. Libbrecht,

A. W. Libbrecht

Publication year - 2011

Publication title -

review of scientific instruments

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.605

H-Index - 165

eISSN - 1089-7623

pISSN - 0034-6748

DOI - 10.1063/1.3534860

Subject(s) - thermistor , controller (irrigation) , absolute zero , temperature control , reproducibility , temperature coefficient , materials science , mean absolute error , temperature measurement , transducer , control theory (sociology) , physics , computer science , thermodynamics , acoustics , mathematics , mean squared error , statistics , control (management) , quantum mechanics , artificial intelligence , agronomy , composite material , biology

The preceding comment by Sloman points out that the absolute accuracy of a temperature controller may be compromised by thermistor self-heating. We measured the self-heating of the thermistor used in our temperature controller, verifying a systematic error of nearly 200 mK. However, this error is reduced by over an order of magnitude with a slight change in our original circuit design. With this change, our controller does achieve an absolute temperature accuracy of 100 mK, limited mainly by the stated absolute accuracy of the thermistor used in the circuit.

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