知搜-全球专利检索

  1. 登录
  2. 注册
发明公开
CN104865161A 一种用毛细管测量液体粘度的方法以及用于该方法的装置 无效 - 驳回

一种用毛细管测量液体粘度的方法以及用于该方法的装置
摘要：
本发明公开了一种用毛细管测量液体粘度的方法以及用于该方法的装置，该方法为：在一定温度条件下，对毛细管液体两端施压，测定液体界面的运动速率，作v(ΔP)关系直线得出直线的斜率，再根据已知的毛细管半径和液柱长度计算出液体的粘度。本发明方法能够测量单一一种液体的粘度，还能够在两种不相溶液体共存时，其中一种液体的粘度已知的情况下，测量另一种液体的粘度。本发明方法测量中所用的毛细管在微米级别，测量液体的粘度范围在5×10-4～10Pa·s。本测量方法测量装置结构简单、设计合理，参数方便控制，结果可靠。
摘要（英）：

The invention discloses a method for measuring a liquid viscosity by utilization of a capillary and a device used for the method. The method is as follows: at a certain temperature, two ends of a capillary liquid are applied with pressure, a liquid interfacial movement rate is measured, a v(delta P) relation straight line is constructed, a gradient of the straight line is obtained, and the liquid viscosity is calculated according to a known capillary radius and a known liquid column length. Through the method, a viscosity of a single liquid can be measured. When two immiscible liquids are coexistent and the viscosity of one liquid is known, the viscosity of the other liquid can be measured through the method. The capillary employed for measurement in the method is in a micrometer level, and the viscosity scope of a liquid to be measured is 5*10<-4>-10Pa.s. The measuring device in the measuring method is simple in structure and is reasonable in design, parameters are convenient to control and results are reliable.

0/0