Difference temperature-to-time electronic interface based on a thermistor-to-generalized impedance converter
✍ Scribed by D. Ramírez Muñoz; E. Castro Montero; J. Sánchez Moreno; S. Casans Berga; A.E. Navarro Antón; J. Fong Barrio; A. Salazar Mustelier
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 839 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0263-2241
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✦ Synopsis
In this work a difference temperature-to-time converter is shown using two thermistors working in a DC generalized impedance converter. Voltage drop in one of the thermistors depends on the temperature difference between them. This voltage is compared with a time varying exponential reference voltage obtaining a time interval at the output circuit with good linear dependence with respect to the input temperature difference. Experimental results are obtained showing a new generalized impedance converter application. The implemented circuit was characterized by a repeatability of 1.0%, a reproducibility of 4.5% and a relative accuracy of 1.3%.
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