In this paper, we proposed a method to determine the flow rate characteristic parameters directly by using an integral algorithm which is not needed to calculate the flow rate. In the isothermal discharge method discussed by ISO, the flow rate characteristics of pneumatic components can be obtained by pressure response and flow rate. The pressure response is measured in an isothermal tank and the flow rate can be given by differentiating the measured pressure response. Because of using the differential algorithm, calculation precision for measurement error and distribution is much poorer. By integrating pressure experimental result with least error method, characteristics can be obtained easily with Excel tool. Some experimental results are given to show that the proposed calculation method in this paper is more effective than the conversational method by using pressure sensors with different precision.

References

1.
ISO 6358: 1989
,
1989
,
Pneumatic Fluid Power-Components Using Compressible Fluids-Determination of Flow Rate Characteristics
,
International Organization for Standardization
,
Geneva
.
2.
Oneyama
,
K.
,
Takahashi
,
T.
,
Terashiona
,
Y.
,
Kuroshita
,
K.
, and
Kagawa
,
T.
,
2003
, “
Study and Suggestion on Flow-Rate Characteristics of Pneumatic Components
,”
Proc.7th Triennial International Symposium on Fluid Control, Measurements and Visualization, Sorrento, Italy (CD-ROM)
.
3.
Kawashima
,
K.
,
Kagawa
,
T.
, and
Fujita
,
T.
,
2000
, “
Instantaneous Flow Rate Measurement of Ideal Gases
,”
ASME J. Dyn. Syst., Meas., Control
,
122
(
1
),
pp.
174
178
.10.1115/1.482439
4.
Kurosita
,
K.
,
Sekiguchi
,
Y.
,
Oshiki
,
K.
, and
Oneyama
,
N.
,
2004
, “
Development of New Test Method for Flow-Rate Characteristics of Pneumatic Components
,”
Bath Workshop on Power Transmission and Motion Control
,
pp.
243
256
.
5.
Kagawa
,
T.
,
Cai
,
M.
, and
Kawashima
,
K.
,
2004
, “
Extend Representation of Flow-Rate Characteristics for Pneumatic Components and Its Measurement Using Isothermal Discharge Method
,”
Bath Workshop on Power Transmission and Motion Control
,
pp.
271
282
.
6.
Kawashima
,
K.
,
Ishii
,
Y.
,
Funaki
,
T.
, and
Kagawa
,
T.
,
2004
, “
Determination of Flow Rate Characteristics of Pneumatic Solenoid Valves Using an Isothermal Tank
,”
ASME J. Fluid Eng.
,
126
(
2
),
pp.
273
279
.10.1115/1.1667888
7.
ISO/DIS 6358-2.3
,
2011
,
Pneumatic Fluid Power – Determination of Flow-Rate Characteristics of Components – Part 2: Alternative Test Methods, International Organization for Standardization
,
Geneva
.
8.
ISO/DIS 6358-1.3
,
2011
,
Pneumatic Fluid Power—Determination of Flow-Rate Characteristics of Components—Part 1: General Rules and Test Methods for Steady-State Flow, International Organization for Standardization,
Geneva
.
9.
Fan
,
W.
,
Zhang
,
H.
,
Wang
,
T.
,
Peng
,
G.
, and
Oneyama
,
N.
,
2009
, “
Flow-Rate Characteristic Measurement of Regulators Based on the Pressure Response
,”
Chin. J. Mech. Eng.
,
22
(
5
),
pp.
214
249
.10.3901/CJME.2009.05.633
10.
Bernard
,
V. L.
,
2009
,
A Guide to Microsoft Excel 2007 for Scientists and Engineers
,
Academic Press
,
London, UK
,
pp.
633
638
.
11.
Xu
,
W.
, and
Xie
,
F.
,
1988
, “
Measuring Mass Flow-Rate Characteristic of Pneumatic Components in Series-Mounting Using Sonic Velocity Exhaust Method
,”
J. North China Univ. Technol.
,
4
(
1
),
pp.
23
31
(
in Chinese
).
You do not currently have access to this content.