Properties of thermistors used in geothermal investigations; Preparation of thermistor cables used in geothermal investigations
| Autor: | Rudolph Raspet, J. H. Swartz, Eugene C. Robertson, M.E. Lillard |
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| Rok vydání: | 1966 |
| Předmět: | |
| DOI: | 10.3133/b1203bc |
| Popis: | ________-________-___-___________________--__---_--___Bl Introduction. _____________________________________________________ 2 Characteristics of thermistors_____________---______----_--------__-4 Manufacture. _________________________________________________ 4 Dependence of resistance on temperature.________________________ 6 Dependence of resistance on pressure___________________________ 9 Temperature measurements with thermistors________________________ 10 Precision of measurement_____________________________________ 10 Temperature of ice baths for thermistor cables____________________ 12 Thermistor stability.______________________________________________ 14 Drift of thermistors in cables_________________________-_--_-----14 Laboratory studies of thermistor drift___-___________-----_-_---_19 Drift of thermistors held at constant temperature ___-_____---__-21 Drift rates at various temperatures_________________---------___22 Possible explanations of thermistor drift.__________________---__-23 Simplified method for conversion of resistance to temperature.__________ 26 References _ _____________________________________________________ 32 |
| Databáze: | OpenAIRE |
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