Sound operated lamps system

Τίτλος

Sound operated lamps system

Θέμα

Electronic systems

Electric lamps

Telephone switching systems, Electronic

Acoustical engineering

Sound engineers

Δημιουργός

Hatzipanagi, Christakis

Πηγή

Higher Technical Institute

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

Εκδότης

Library of Cyprus University of Technology

Ημερομηνία

1990

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

EED0090

Σύνοψη

The purpose of the project is to design, construct and test an electronic system which will activate by sound a lamp from a distance.
This electronic system incorporates a timer so that the
lamp will remain ON for several hours before returning to OFF position.
The constructed unit is actually a sound activated switch
which is activated by the ringing sound of a telephone. The system finds several applications apart from activating and controlling a lamp.
In order for the lamp not to be activated by spurious
noises and before the sound level exceeds a pr~determined level the sensitivity of the unit is externally controlled.
Another feature of the unit is that it provides the facility
of selecting the duration the lamp will stay on after
it has been activated.