Measurement of instantaneous flow rate through estimation of velocity profiles

1983 ◽  
Vol 28 (3) ◽  
pp. 380-388 ◽  
Author(s):  
M. Uchiyama ◽  
K. Hakomori
Keyword(s):  
Flow Rate ◽  
Velocity Profiles ◽  
Instantaneous Flow ◽  
Instantaneous Flow Rate

The Electronic Part of the Metal Tube Rotameter

2013 ◽  
Vol 419 ◽  
pp. 661-666 ◽  
Author(s):  
Bo Mo ◽  
Fei Yu Jiang ◽  
Hui Xin Zhang
Keyword(s):  
Flow Rate ◽  
Electric Circuit ◽  
Magnetic Sensors ◽  
Metal Tube ◽  
Flow Signal ◽  
Instantaneous Flow ◽  
Electronic Part ◽  
Flow Rate Change ◽  
Fitting In ◽  
Instantaneous Flow Rate

The electronic part of the metal tube rotameter which is based on the magnetic sensors and microcontroller C8051F005 is studied. The flow rate change causes the change of the floats position in the metal tube and leads to rotation of the coupling magnet. Then the change of magnetic angle is detected by the magnetoresistive sensors, and a signal is generated. The signal is processed by the electric circuit and made available for the microcontroller for sampling. Then it will has linearization fitting in the microcontroller and finally has a output. This system could automatically sample the flow signal, calculate the instantaneous flow rate, and display them on the LCD screen.

A Measurement of Instantaneous Flow Rate of an Automotive Gaseous Fuel Injector

2007 ◽  
Author(s):  
Mikiya Araki ◽  
Yasuhiro Fujiwara ◽  
Seiichi Shiga ◽  
Hisao Nakamura ◽  
Tomio Obokata
Keyword(s):  
Flow Rate ◽  
Gaseous Fuel ◽  
Fuel Injector ◽  
Instantaneous Flow ◽  
Instantaneous Flow Rate

ENGINEERING ASPECTS OF MILKING MACHINE RESEARCH

1965 ◽  
Vol 28 (5) ◽  
pp. 166-169
Author(s):  
R. W. Guest ◽  
E. Stanley Shepardson ◽  
James S. Townsend
Keyword(s):  
Flow Rate ◽  
Instantaneous Flow ◽  
End Pressures ◽  
Milking Machine ◽  
Instantaneous Flow Rate ◽  
Error Limited

Summary Research was undertaken to learn more precisely the physical aspects of mechanical milking. Attempts to measure the instantaneous flow rate have not been successful. A technique to measure precisely the vacuum at the teat end was developed and several measurements made. The work indicates previous assumptions regarding teat end pressures may have been in error. Limited work to date indicates a need for continuing efforts.

2220 Instantaneous flow rate measurement of an automotive gaseous fuel injector

2008 ◽  
Vol 2008.7 (0) ◽  
pp. 67-68
Author(s):  
Mikiya ARAKI ◽  
Yasuhiro FUJIWARA ◽  
Seiichi SHIGA ◽  
Hisao NAKAMURA ◽  
Tomio OBOKATA
Keyword(s):  
Flow Rate ◽  
Gaseous Fuel ◽  
Fuel Injector ◽  
Rate Measurement ◽  
Flow Rate Measurement ◽  
Instantaneous Flow ◽  
Instantaneous Flow Rate

Instantaneous Flow Rate Measurement of Ideal Gases

1996 ◽  
Vol 122 (1) ◽  
pp. 174-178 ◽  
Author(s):  
Kenji Kawashima ◽  
Toshiharu Kagawa ◽  
Toshinori Fujita
Keyword(s):  
Heat Transfer ◽  
Flow Rate ◽  
Isothermal Condition ◽  
Flow Rate Measurement ◽  
Steel Wool ◽  
Simple Method ◽  
Flow Rates ◽  
Instantaneous Flow ◽  
Ideal Gases ◽  
Instantaneous Flow Rate

In this paper, a chamber called an “Isothermal Chamber” was developed. The isothermal chamber can almost realize isothermal condition due to larger heat transfer area and heat transfer coefficient by stuffing steel wool in it. Using this chamber, a simple method to measure flow rates of ideal gases was developed. As the process during charge or discharge is almost isothermal, instantaneous flow rates charged into or discharged from the chamber can be obtained measuring only pressure in the chamber. The steady and the unsteady flow rate of air were measured by the proposed method, and the effectiveness of the method was demonstrated. [S0022-0434(00)00301-4]

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