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AN AUTOMATION SYSTEM BASED ON LABVIEW TO
CONTROL THE TEST OF MECHANICAL FLOW METERS
Mechanism to characterize flow measurers
Javier Martínez (1), Ricardo Alvarez (3), Petronilo Cortez (4), Víctor Mejia (5)
Mexican Institute of Water Technology (IMTA) Paseo Cuauhnahuac No. 8532,Cuernavaca, Morelos,
México:
Victor Hugo Zárate Silva(2)
Institute Tecnologico and of Superior Studies of Monterrey - Campus Morelos,
Mexico: victor hugo zarate silva.
Abstract: A mechanical flow meter is a device used mainly to measure and calculates velocity of weater´s
flow on rivers and open channels. These devices, as the time of use pass trough, suffer
mechanical imperfections, that are why it is important to calibrate them twice a year, depending
of its time of use. At the Mexican Institute of Water Technology (IMTA in Spanish) was
designed and developed a circular water tank for propose of test of these meters. The present
paper shows the automation systems designed to control the tests to calibrate these mechanical
meters. The system is based on LabVIEW. LabVIEW is a general purpose programming tool
with extensive libraries for data acquisition instrument control, data analysis, and data
presentation. With this tool and a special hardware interface, it was possible to automate the
process to test these meters. The system is called SCM (System of characterization of
mechanical meters). SCM control the test of two mechanical meters simultaneously, and has
some user's control features that permit the Operator a easy to use human machine interface.
1 INTRODUCTION
Before that disappear the installation where
himself towards the Calibration of the mechanical
meter flow the Mexican institute Technology water
builds a circular water tank for purpose apart the
test calibration those meters.
This circular water tank have 12m of diameter,
80cm
. Cross section and 1.40m of depth with a
motor is of 15 kV. for move the arm of 12m the
mechanical flow meter are device use for
Measurement the speed in river and open channel,
the which testing needs depending on your use.
This measurements it are carry with the help of
a hea
dphone and a battery, himself submerge the
device in the water flow and himself count the turn
that get your cops a the open or close a circuit each
revolution in a period of time give and with this
date and know the area is possible calculate the
expense.
In the channel in the beginning himself
produce
r the characterizations in form manual:
before the apocopated demand, himself use the
tool the computation for produces the
characterizations of the measurement of flow.
2 PERIPHERY AT CONSIDERS.
For carry at handle the development of software
was necessary take in count the information that
drive each a of the mechanics, list the parts that
will be in the system and in consequence define the
software.
CONCEPT
a) The measurement flow are system mechanics
of m
easurement of flow of water, consist of a
system of six cones or cup, the as are impulse
for the flow of water.
In of mechanism have platinum that himself close
for each t
our complete that gives the disc o cups.
530
Martínez J., Hugo Zárate Silva V., Alvarez R., Cortez P. and Mejia V. (2004).
AN AUTOMATION SYSTEM BASED ON LABVIEW TO CONTROL THE TEST OF MECHANICAL FLOW METERS - Mechanism to characterize flow
measurers.
In Proceedings of the Sixth International Conference on Enterprise Information Systems, pages 530-535
DOI: 10.5220/0002607705300535
Copyright
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SciTePress