论文部分内容阅读
日本工业技术院计量研究所开发了磁浮式密度计,该密度计利用磁力,可以长时间自动地测定液体的密度。这种新式密度计在测定时,首先将试样液体注入管中,并在管内投入预先于真空中测量了质量与体积的磁铁,然后封闭试管。最后,将天平上用线悬挂的电磁线圈落放到管的外侧,见附图。线圈上如通以电流,则管中的
Japan Institute of Metrology Institute of Metrology developed a magnetic floating densimeter, the densitometer using magnetic force, you can automatically determine the liquid density for a long time. In the measurement of this new type of densitometer, the sample liquid was first injected into the tube, and a magnet in which the mass and volume were previously measured in a vacuum was introduced into the tube, and then the tube was closed. Finally, drop the balance with a wire suspension coil to the outside of the tube, see the photo. If the current through the coil, then the tube