SELVIANA, DINA (2016) APLIKASI SENSOR ULTRASONIK HC-SR04 PADA ALAT PENYORTIR BUAH BERDASARKAN WARNA DAN UKURAN BERBASIS MIKROKONTROLER ATMEGA 32. Other thesis, POLITEKNIK NEGERI SRIWIJAYA.
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Abstract
Fruit sorter tool based ATMega 32 of microcontroller is designed to sort the pieces by color and size. One of the sensors used are ultrasonic sensors. Ultrasonic sensor is a sensor that works on the principle of reflection of sound waves and is used to detect the presence of a particular object in front of him. In this type of tool HC-SR04 ultrasonic sensor is used to detect the presence of fruit in the sorting process. An ultrasonic sensor distance ranges between 2 cm - 400 cm with long a pulse output proportional to the object. Each ultrasonic sensor detects the distance to objects with the speed of light intensity sensor 344 m / s, so that would be obtained travel time. The farther the distance sensor to the object (fruit), then the longer the travel time of the ultrasonic waves. Retrieved on red fruit at a distance of 3.3 cm wave propagation time change to the distance sensor that is for 180 μs, at a distance of 4.4 cm wave propagation time change to the distance sensor that is over 235 μs and at a distance of 5.1 cm change in travel time wave to the distance sensor that is over 280 μs. The farther the distance sensor to the object (fruit) then the frequency will decrease. For red fruit at a distance of 3.3 cm change in frequency of the sensor distance is equal to 5555 Hz, at a distance of 4.4 cm change in frequency of the sensor distance is equal to 4255 Hz and at a distance of 5.1 cm change in frequency of the sensor distance is equal to 3571 Hz.
| Item Type: | Thesis (Other) |
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| Uncontrolled Keywords: | Penyortir buah, Mikrokontroler ATMega 32, Sensor ultrasonik HC-SR04 |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Electronic Engineering > Undergraduate Theses |
| Depositing User: | Mrs Trisni Handayani |
| Date Deposited: | 26 Jan 2017 04:04 |
| Last Modified: | 26 Jan 2017 07:23 |
| URI: | http://eprints.polsri.ac.id/id/eprint/3238 |
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