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|Title: ||DEVELOPMENT OF AN INTERNET-BASED SYSTEM FOR CALIBRATION OF INSTRUMENTS|
|Authors: ||Yong, En Haur|
|Keywords: ||Internet Calibration System|
|Issue Date: ||Dec-2005 |
|Abstract: ||In a conventional calibration service, the clients send their instruments to a laboratory
for routine calibration. During the service time, the clients are not able to use their
instruments due to downtime. Some of their instruments are huge and heavy such as
power source transformer which is difficult to be transported.
One of the solutions for these problems is to send an engineer together with a standard
measurement instrument to a client site to perform the calibrations. Another way of
solving the problem is to send only the measurement instrument to a client site where
the instrument and the unit under test are controlled by a computer that links with the
laboratory computer over the internet. The calibration engineer can monitor the
calibration progress remotely from his laboratory without going to the site. This can
improve the calibration service and bring satisfaction to the client.
The research project conducted as described here is to develop a calibration system
that allows the client instruments to be calibrated at the remote location. The existing
internet facility and its advancement pave the way for development of internet
calibration system. The methodology of internet calibration is based on the
technology of client-server applications. It is distinguished by the connected online
calibration service that it provides.
Most of the instruments are equipped with communication interfaces such as RS-232
port, network interface or IEEE-488 interface. When these instruments are connected
to the computer, their operations can be controlled by the computer. A software
system is needed to control the calibration process. The system has to extend its
capability over the internet to gather the calibration information from the national
laboratory. In other words, the national laboratory provides a server system that
contains the calibration information waiting for client’s computer to connect from a
remote area. Upon the connection, client’s computer is able to automate the
calibration via the instruments communication interfaces. The calibration data is then
sent back to the system server for process.
Customers from various industries and services will benefit from this implementation.
This system can reduce their instruments downtime. Their instruments performances
are directly traceable to national laboratory. Experts from national laboratory can
share their skills and knowledge with the customers.
The internet calibration which follows through a pipeline of stages is realized in this
|Description: ||Master of Information Technology|
|Appears in Collections:||Masters Dissertations: Computer Science|