Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A Method for Measuring Liquid Viscosity Coefficient Using Spring Ball System

A viscosity coefficient, small ball technology, applied in the field of physical experiments, can solve the problems such as the inability to effectively guarantee the falling angle and posture of the needle drop, the declination in the vertical direction of the needle drop, and the complicated equipment and equipment, so as to achieve a convenient and fast measurement method. Simple instrument and the effect of improving experimental efficiency

Inactive Publication Date: 2018-10-19
QIQIHAR UNIVERSITY
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the equipment of the needle drop method is complicated, and because before launching, the permanent magnet of the transmitter and the falling needle are magnetically attracted, and the upper end of the falling needle is spherical, which cannot be completely sealed with the horizontal end surface of the transmitter magnet, causing the needle to fall before launching. There is a deflection angle with the vertical direction, and the gravity of the falling needle is much smaller than the magnetic force, so it cannot be corrected by gravity
When launching, the transmitter forcibly distances itself from the falling needle, causing the falling needle to fall under gravity. At this moment, the entire instrument is under force, which interferes with the falling direction of the falling needle, and cannot effectively guarantee the falling angle and posture of the falling needle.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A Method for Measuring Liquid Viscosity Coefficient Using Spring Ball System
  • A Method for Measuring Liquid Viscosity Coefficient Using Spring Ball System
  • A Method for Measuring Liquid Viscosity Coefficient Using Spring Ball System

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] The present invention will be further described below in conjunction with the accompanying drawings and a specific embodiment.

[0045] like figure 1 As shown, the spring ball system that the method for measuring the viscosity coefficient of liquid described in this embodiment relies on consists of three small balls 6

[0046] It is composed of two springs 7 cross-connected. The three small balls 6 have smooth surfaces and similar diameters, and the diameters from top to bottom are d 1 、d 2 、d 3 , with a mass of m 1 、m2 、m 3 , and m 1 2 3 ; The spring 7 is a light and uniform spring, and the lengths of the two springs 7 are close to each other, and the lengths from the top to the bottom are L respectively 1 , L 2 .

[0047] like figure 2 and image 3 As shown, it is the photoelectric falling ball viscometer used in this embodiment. The measuring cylinder 1 is a plexiglass measuring cylinder with an experimental liquid 8 inside. Two lasers 3 are installed on ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for measuring the viscosity coefficient of a liquid by using a small spring ball system. In the method, small balls with similar diameters and successively increasing densities are connected with light springs with similar length and rigidity to form a spring small ball system. Immerse the system in the experimental liquid whose viscosity coefficient is to be tested, release it twice at the center of the liquid surface, and measure the falling time of the spring ball system as a whole passing through the two measuring points in the liquid to be tested. The internal action of the ball system and the external load balance relationship are used to obtain the viscosity coefficient of the liquid. Compared with the existing method, the present invention is convenient and quick, easy to judge whether the ball has reached the stage of uniform falling, easy to control the falling shape of the system, simple equipment required, suitable for theoretical research on liquid viscosity coefficient, and also suitable for physical experiment teaching.

Description

technical field [0001] The invention relates to a physical experiment method, in particular to a method for measuring the viscosity coefficient of a liquid by using a small spring ball system. Background technique [0002] The measurement experiment of liquid viscosity coefficient is one of the important confirmatory experiments in university physics. The measurement methods mainly include falling ball method, falling needle method, capillary method and rotation method. Intuitive, easy for students to understand the physical meaning of liquid viscosity coefficient, and become a widely used measurement method of liquid viscosity coefficient. [0003] The advantage of the falling ball method is that it is easy to operate, but the disadvantage is that the error of the measurement result is relatively large. According to the research in the literature "Research on the Error of Measuring Liquid Viscosity Coefficient by Falling Ball Method" ("Laboratory Science", Volume 17, Issue...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01N11/12G09B23/08
CPCG01N11/12G09B23/08
Inventor 刘相梅
Owner QIQIHAR UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products