密度的测量作为一个经典物理实验,在普通物理实验中常用流体静力称衡法或比重瓶法来测量。在介绍用测高仪来测量固体密度的基础上,对测量原理公式做了较详尽的推导。用测量结果和理论值与流体静力称衡法测量值进行比较,发现用测高仪测量固体密度比较准确。 Density measurement as a classic physical experiment, commonly used in ordinary physical experiments hydrostatic weighing method or pyknometer method to measure. Based on the introduction of the altimeter to measure the density of the solid body, a detailed derivation of the measurement principle formula is made. The measured results and theoretical values ​​are compared with hydrostatic weighing method. It is found that the measurement of solid density by altimeter is more accurate.