HIGH PRESSURE MEASUREMENT

摘要

PURPOSE:To enable highly accurate measurement of a high pressure value applied, by applying a high pressure to material composed of an organic charge- transfer salt to measure the electric resistance or electric conductivity of the material. CONSTITUTION:A high voltage is applied to material composed of an organic charge-transfer salt and the high voltage value applied is determined by measuring changes in the electric resistance and changes in the electric conductivity of material. The organic charge-transfer salt herein used can be a (BEDT-TTF) aXb based salt or the like. The accurately measurable range is about 0.5 kbar-20kbar. The rate of change in the electric resistance and electric conductivity with respect to the pressure of the organic charge-transfer salt can be 500 times higher than those of the manganese wire used traditionally thereby enabling the measurement with a extremely high accuracy. The material composed of the organic charge-transfer salt is limited in the hysteresis due to pressurization or depression while it can provide the same results of measurement regardless of difference in the sample.