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Diodes as sensors in solution thermochemistry

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Abstract

The advantages of using diodes as thermal sensors in solution thermochemistry are discussed and a simple, low-cost circuit for the use of diodes as temperature sensors is reported. In preliminary studies, the titration of TRIS and hydrochloric acid is used to compare the precision of thermistors and diodes in thermometric titrimetry. Several systems are assayed at various temperatures by enthalpimetric methods to illustrate the advantages of diodes as sensors for monitoring thermal methods capable of being used in quality control system.

Zusammenfassung

Es werden die Vorteile der Verwendung von Dioden als Thermosensoren in der Thermochemie von Lösungen diskutiert und ein einfacher, kostengünstiger Stromkreis für die Verwendung von Dioden als Temperaturfühler beschrieben. In vorangehenden Studien wurde die Titration von TRIS und Salzsäure zum Vergleich der Genauigkeit von Thermistoren und Dioden in der thermometrischen Titrimetrie verwendet. Einige Systeme wurden bei verschiedenen Temperaturen mittels enthalpimetrischen Methoden geprüft, um die Vorteile von Dioden als Sensoren für das Monitoring thermischer Methoden zu demonstrieren, die zur Anwendung in Qualitätsprüfungssystemen fähig sind.

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Bark, L.S., Bowmer, C., Kershaw, L. et al. Diodes as sensors in solution thermochemistry. Journal of Thermal Analysis 42, 595–606 (1994). https://doi.org/10.1007/BF02548537

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