公开(公告)号：US5900547A

公开(公告)日：1999-05-04

申请号：US928650

申请日：1997-09-12

申请人： Luke Bartkiewicz

发明人： Luke Bartkiewicz

IPC分类号： G01N9/18 ,  G01N9/10

CPC分类号： G01N9/18

摘要： A differential level hydrometer reduces the possibility for user error and provides an accurate, predictable, easy to use, reliable instrument for measuring the density (specific gravity) of a liquid. The differential level hydrometer works by automatically measuring the level of a liquid within a vessel and floating, in the liquid, a calibrated float having a precisely known volume and density. The instrument automatically measures the level of the liquid within the vessel while the float is floating in the liquid, and automatically calculates the density (specific gravity) of the liquid based on the two measured levels and the volume and density of the float. Temperature and meniscus correction may be used to improve repeatability and accuracy.

摘要翻译： 差分液位计减少了用户错误的可能性，并提供了准确，可预测，易于使用，可靠的仪器来测量液体的密度（比重）。 差压液位计通过自动测量容器内液体的液位并在液体中漂浮具有精确已知体积和密度的校准浮子来工作。 当浮子浮在液体中时，仪器会自动测量容器内液体的液位，并根据两个测量值和浮子的体积和密度自动计算液体的密度（比重）。 可以使用温度和弯液面校正来提高重复性和精度。