Densities in the liquid phase for molten refractory metals (Re, Os, and Ir) whose values are over 18,000 kg/m³ have been re-measured using an electrostatic levitator. The sample position control of electrostatically levitated sample was revised to suppress sample oscillations and to reduce measurement errors on the volume calculation by image analysis. Therefore, the measured density data showed a clearer temperature dependence compared to our previous measurements. The measured density of Re, Os, and Ir can be respectively expressed as ρ_Re(T) = 18.9 × 10³–0.62 × (T-T_m) kg/m³, ρ_Os(T) = 19.4 × 10³–0.92 × (T-T_m)kg/m³, and ρ_Ir(T) = 19.6–0.83 × (T-T_m) kg/m³, where T_m is the melting temperature of each metal.

已经使用静电悬浮仪重新测量了其值超过18,000 kg / m ^3的熔融难熔金属（Re，Os和Ir）的液相密度。修改了静电悬浮样品的样品位置控制，以抑制样品振荡并减少通过图像分析进行体积计算时的测量误差。因此，与我们之前的测量相比，测得的密度数据显示出更清晰的温度依赖性。铼，锇，和Ir的测量的密度可分别表示为ρ_回复（Ť）= 18.9×10 ³ -0.62×（Ť - Ť_米）千克/米³，ρ_锇（Ť）= 19.4×10 ³ -0.92×（Ť - Ť_米）千克/米³，和ρ_的Ir（Ť）= 19.6-0.83×（Ť - Ť_米）千克/米³，其中Ť_米是熔化温度每种金属。