scholarly journals A new measuring method of displacement by means of variations of sound frequency and the length of air column in a small pipe. Theoretical analysis by means of electrical analogous circuit and velocity distribution.

1990 ◽  
Vol 56 (522) ◽  
pp. 435-441
Author(s):  
Syuichi SAKAMOTO ◽  
Ryoichi ICHIMIYA
Keyword(s):  
Theoretical Analysis ◽  
Velocity Distribution ◽  
Measuring Method ◽  
Sound Frequency ◽  
Air Column

Development of a New Continuous Monitor for Nonvolatile Solute in Ultrapure Water by Atomization

1987 ◽  
Vol 30 (4) ◽  
pp. 39-42
Author(s):  
Y. Kousaka ◽  
T. Niida ◽  
Y. Tanaka ◽  
Y. Sato ◽  
H. Kano ◽  
...  
Keyword(s):  
Theoretical Analysis ◽  
Fine Particle ◽  
Particle Deposition ◽  
Aerosol Particles ◽  
Condensation Nucleus ◽  
Measuring Method ◽  
Number Concentration ◽  
Ultrapure Water ◽  
Particle Counter ◽  
Continuous Monitor

A new monitoring system has been developed for continuously measuring the concentration of total nonvolatile impurities in ultrapure water. The measuring method is based on the principle of determining the Residue After Evaporation (RAE) of atomized droplets, taking account of the particle deposition loss. The system consists of a water atomizing unit, a droplet evaporating and drying unit, an air diluter, a fine particle counter, etc. For the particle counter, a Condensation Nucleus Counter (CMC) is used; this counter is a mixing type, able to detect particles larger than 0.01 μm. It is verified from both the theoretical analysis and the experimental results that this monitor can rapidly detect very low impurity concentrations by counting the number concentration of aerosol particles.

Researches on Relationship between Dynamic Radius and Slip Ratio of Driving Wheel

2012 ◽  
Vol 159 ◽  
pp. 249-252
Author(s):  
Xi Qin Li
Keyword(s):  
Theoretical Analysis ◽  
Measuring Method ◽  
Measuring Error ◽  
Road Vehicles ◽  
Slip Ratio ◽  
Movement Characteristics ◽  
Driving Wheel ◽  
Experimental Researches

The dynamic radius of a driving wheel, especially for the off-road vehicles, has not been identified clear so far. This article reveals the relationships between the dynamic radius and the slip ratio of a driving wheel by theoretical analysis and experimental researches. The movement characteristics of a rigid driving wheel and an elastic pneumatic driving tire on soft roads are explained. There are many kinds of methods to measure the dynamic radius, and the magnitude of the dynamic radius is not the same according to the methods. A certain measuring method should be chosen for each kind of road conditions in order to reduce the measuring error.

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