Investigation of the Stability of Thermistor Based Sensors for High-Precision Marine Temperature Measurement

Published: Jan. 1, 2025

The ocean covers approximately 71% of the Earth's surface, acting as largest heat reservoir with abundant natural resources and a complex ecosystem. As fundamental hydrological parameter, temperature fluctuations not only affect measurement other parameters but also profoundly impact climate, ecosystems, land-ocean interactions. Therefore, long-term precise monitoring seawater is essential. This study evaluates stability NTC thermistor sensors, which are widely used for marine measurements. sensor performance was systematically studied under conditions annealing pre-treatment, thermal shock, constant-temperature aging. Experimental results show that 140 hours high-temperature treatment can accelerate newly manufactured sensors to more stable operating state. Glass-encapsulated exhibited minimal drift cycling, no noticeable caused by stress, while epoxy resin-encapsulated showed marginal shifts within millikelvin range. After pre-aging, rate exhibits piecewise linear trend, rapid initial change followed gradual deceleration, ultimately stabilizing. Notably, activation energy in environment 0.3 eV. acceleration effect on aging significant at higher temperatures negligible lower temperatures. Our research provides both theoretical foundations practical guidance selecting high-precision offering insights into optimization. work contributes accurate parameters, providing reliable foundational support oceanic physics, chemistry, global climate research.

Language: Английский

Microplastic contamination in deep-sea sediments and polymetallic nodules: Insights from the Clarion-Clipperton Zone, Pacific Ocean

Marine Pollution Bulletin, Journal Year: 2025, Volume and Issue: 216, P. 117945 - 117945

Published: April 15, 2025

Language: Английский