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Pubmed for Handhelds

PUBMED FOR HANDHELDS

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  • Title: Simple bridge detector for use with a low-temperature capacitance thermometer, and thermometer performance limits.
    Author: Prober DE.
    Journal: Rev Sci Instrum; 1979 Mar; 50(3):387. PubMed ID: 18699517.
    Abstract:
    A simple high-resolution bridge circuit for use with a glass-ceramic capacitance thermometer is described. This circuit allows a linear readout of capacitance changes and has better than 1 mK resolution and short-term stability. Performance limits of the thermometer itself are also reported. Irreproducibility of thermometer calibration upon thermal cycling can be as large as 0.3 K, and changes in the calibration slope dC/dT are also observed. The bridge circuit described partially compensates for these shifts in dC/dT.
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