Abstract：In order to explore the influence of compression heat effect on the temperature of DSL-2329 liquid, the ratio of constant temperature compression coefficient to constant entropy compression coefficient of DSL-2329 liquid can be calculated by combining theoretical deduction with experimental results. The higher the ratio, the more sensitive the temperature of liquid to pressure. In a constant temperature liquid measuring environment of (+0.1mK), three specific suspension states of single crystal silicon sphere are realized by micro-adjustment of liquid temperature and pressure. The three states include the change of liquid density under constant temperature and constant entropy conditions respectively. The ratio of liquid isothermal compression coefficient to isentropic compression coefficient is calculated by using the pressure relationship between the three specific suspension states value. The experimental data show that the smaller the pressure change is, the closer the ratio of constant temperature compression coefficient to constant entropy compression coefficient is to the theoretical value of 0.72.
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2020, Vol. 41 
