The application of manganin wire pressure gauges in a large volume press under high-temperature conditions

摘要

The in-situ observation of pressure inside a sample chamber was made by exploiting the piezoelectric effect in manganin wire. This was done by considering temperatures of room temperature (±1°C), 600°C (±3°C), and 900°C (±3°C), pressure range of 0-2.4 GPa (±0.1 GPa), and the inferring a relationship between the relative resistance of manganin wire and the pressure inside the sample chamber for the different temperatures, allowing the pressure to be found.