YULIANTO, TONY (1997) RANCANG BANGUN PENGUKUR KECEPATAN ALIR DOPPLER LASER DENGAN METODE VISUALISASI OPTIK. Documentation. fakultas matematika dan ilmu pengetahuan alam.
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Abstract
Telah dilakukan uji coba alat tuttuk mengukur kecepatan aliran dengan menggunakan prinsip Doppler. Ada perubahan frekuensi pemancaran akibat gerakan relatif antara sumber dan penerima pemancaran radiasi yang disebabkan pick efek Doppler. Pergeseran Frekuensi Doppler ditentukan dengan membandingkan pergeseran sinar pada sebuah sinar referensi ( koheren ) dari sumber laser yang sama. Jika dua berkas sinar koheren mengenai foto detektor, hasil yang terukur adalah frekuensi yang nilainya sama dengan perbedaan frekuensi kedua berkas sinar yang terjadi.Sinar referensi adalah sinar langsung dari laser. Has been examined apparatus used even for liquid flow by Doppler effect. There is a change in frequency of radiation associated with relative motion between a source and a receiver of radiation due to the Doppler effect. The Doppler frequency shift is determined by comparing the shifted beam to a reference (coherent) beam from the same laser source. If the two coherent beams are incident on a photodetector, the output current of photodetector has a component whose frequency has a value equal to the difference of the frequencies of two beam. Reference beam is the direct beam from the laser.
Item Type: | Monograph (Documentation) |
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Subjects: | Q Science > QC Physics |
Divisions: | Faculty of Science and Mathematics > Department of Physics |
ID Code: | 20043 |
Deposited By: | Ms upt perpus3 |
Deposited On: | 11 Aug 2010 08:55 |
Last Modified: | 11 Aug 2010 08:55 |
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