Digital measurement of current flow

Τίτλος

Digital measurement of current flow

Θέμα

Ammeters

Electrical engineering

Δημιουργός

Koufalides, Christos

Πηγή

Higher Technical Institute

Εκδότης

Library of Cyprus University of Technology

Το πλήρες κείμενο είναι διαθέσιμο από το Υπουργείο Ενέργειας, Εμπορίου Βιομηχανίας και Τουρισμού

Ημερομηνία

1990

Συνεισφέρων

Elia, Andreas

Δικαιώματα

Απαγορεύεται η δημοσίευση ή αναπαραγωγή, ηλεκτρονική ή άλλη χωρίς τη γραπτή συγκατάθεση του δημιουργού και κάτοχου των πνευματικών δικαιωμάτων.

Μορφή

pdf

Γλώσσα

eng

Τύπος

text

Αναγνωριστικό

EED0087

Σύνοψη

The main objective of this project was the design and
construction of a Digital Clip-on Ammeter.
The Clip-on Ammeter was designed and constructed part by part. The AC/DC Converter was constructed on a separate PCB but the other parts for practical reasons were incorporated on the same PCB.
An ERROM was used for the Binary to BCD Conversion which was programmed to convert each binary number applied to its Address Inputs into BCD.
Testing of the project was carried out part by part on a
protoboard in association with the use of an oscilloscope
and/or a logic probe.
After ensuring the correct operation of each part of the
instrument, a circuit was implemented to simulate the
function of the Current Transformer (Sensor) since the price of it was too high.
Finally the procedure of constructing the PCB that would
accept as input the DC output of the AC/DC Converter and give as output the value of the current under
measurement on three 7-segment displays was initiated. The PCB of the AC/DC Converter was constructed and tested succesfully.