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Absorbed dose calorimetry: Bridge nulling and voltage analysis techniques
Author(s) -
Kubo Hideo,
Brown Dennis E.
Publication year - 1986
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.595904
Subject(s) - wheatstone bridge , thermistor , calorimeter (particle physics) , calorimetry , bridge (graph theory) , computer science , voltage , electrical engineering , electronic engineering , physics , materials science , engineering , resistor , detector , thermodynamics , medicine
A theoretical analysis is made of the conventional calorimeter approach utilizing a two‐thermistor Wheatstone bridge—an approach which requires balancing the bridge by adjusting variable resistances. However, with the current availability of computers and digital precision measuring instruments, the conventional calorimeter approach can now be readily replaced by an automated, nonmechanical, electrical systems approach called differential calorimetry. The analytical theory outlining such an approach is also presented.