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040 _aCvSU-CCAT Campus Library.
_bEnglish.
_cCvSU-CCAT Campus Library.
_erda.
050 _aUM TK 5102.9
_bA33 2017
100 _aAdamos, Raeden H., author.
_96592
245 _aDevelopment of noise detector with sound alarm /
_cRaeden H. Adamos, Mhelvin P. Austria, and Bella Fe D. Sicam.
260 _aRosario, Cavite :
_bCavite State University-CCAT Campus,
_c2017.
300 _axviii, 67 leaves :
_billustrations ;
_c28 cm
500 _aProject Design Study (BSIT - Major in Electronics Technology) -- Cavite State University-CCAT Campus, 2017.
504 _aIncludes bibliographical references and appendices.
520 _aADAMOS, RAEDEN H., AUSTRIA, MHELVIN P. and SICAM, BELLA FE D., Development of Noise Detector with Sound Alarm Undergraduate Project Design. Bachelor of Science in Industrial Technology. Cavite State University Rosario Campus, Rosario, Cavite. April 2017. Adviser: Ms. Janice G. Dulce. Technical critic: Mr. Nonilo G. Evangelista. The study was conducted at Cavite State University Rosario Campus,Rosario, Cavite Electronics Building TVEP R-3 and Library from June 2015 to April 2017.The primary objective of the study was to develop and evaluate the noise detector with sound alarm. Specifically,the study aimed to 1) design a noise detector with sound alarm; 2) construct a noise detector with sound alarm from supply and materials available in the local market; 3) evaluate the performance of the prototype in terms of; a) sensitivity of sensor to detect any audible audio frequency within given distance, height of installation and time; b) safety of electronic circuitry with respect to change of temperature during its time of operation; and 4) conduct a cost analysis for the fabrication of noise detector with sound alarm. The prototype was composed of different parts which include the power supply, condenser microphone, Arduino, amplifier circuit and loudspeaker. The power supply, serve as the source power of the whole circuit. The whole circuit was supplied by 220v AC.; condenser microphone, used as an input device that converts the sound into electrical; Arduino, a programmable circuit board that consist the programmed data or the output sound; amplifier circuit, serve as the passage of input signal and amplify/strengthen the output signal; and loudspeaker, which converts electrical signal into sound. Measuring the distance, height of installation and the sensitivity of the microphone was done to evaluate the performance of the prototype.The sensitivity of the microphone can reach out the following source of sound like; falling book, pulling of chairs, normal conversation and phone ringing within the distance of 4 meters. The prescribe height of installation was in 2 meters above the ground. Within the given source of sound and height of instillation the prototype automatically alarm with an output sound of“Please Keep Quiet”. Testing and evaluation was conducted in 8 hours of operation. The accuracy of time was performed in three trials. Thermocouple was used to measure the temperature of the transformer in every hour.
546 _aIn English text.
650 _aNoise detector.
_99619
650 _aSound alarm.
_914695
650 _aDesign and development.
_914539
650 _aNoise monitoring.
_914696
650 _aNoise reduction.
_914697
650 _aSound detection.
_99621
700 _aAustria, Mhelvin P., author.
_96593
700 _aSicam, Bella Fe D., author.
_96594
700 _aDulce, Janice G., adviser.
_96548
700 _aEvangelista, Nonilo G., technical critic.
_96107
942 _2lcc
_cT/M/D
_hTK 5102.9 A33 2017
_kUM
999 _c1931
_d1931