In order to measure the density of cryogenic fluids in different states,an experimental setup for density measurement of cryogenic fluids by dielectric constant method has been designed and fabricated to measure the ensity of deuterium and oxygen,with a two-stage G-M cryocooler as the cold source. The system is applicable for the temperature range of 15~300 K,and pressure range of 0.01~0.3 MPa. The experimental liquid is obtained through liquefaction of the gas by the cryocooler and then stored in the sampl...
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