Hasil Pencarian  ::  Simpan CSV :: Kembali

Hasil Pencarian

Ditemukan 6 dokumen yang sesuai dengan query
cover
Deti Nurdiawati
Measurement of angular velocity of a diffuse surface using speckel photography
" ABSTRACT
We propose a method for measuring the angular velocity of a rotating diffuser by speckle photography employing a simple optical system and single exposure. The information is extracted by pointwise and Fourier filtering techniques.

A speckle pattern occurs when a ground glass for transmission and aluminum for reflection as a diffuse object is illuminated by coherent light and recorded on a negative film. To measure the angular velocity during the exposure, as the diffuser ... "
1995
T-Pdf
UI - Tesis Membership  Universitas Indonesia Library
cover
Andi Muhammad Natsir Amal
Temperature measurement by using Mach-Zehnder interferometer
" ABSTRACT
We proposed a method for measuring the temperature by using Mach - Zehnder Interferometer, one arms of Mach - Zehnder Interferometer was used as a test arms which was disturbed by an object, it's temperature was to be measured. In our experiment, we used a combustion flame and a heated welder with temperature variation as a testing object.

System, contains He - Ne laser source, two beams splatters and two mirrors which form two ... "
1992
T-Pdf
UI - Tesis Membership  Universitas Indonesia Library
cover
Endang Juliastuti
Information multiplexing with theta modulation technique
" Multiplexing is meant to record a number of different information in a piece of film. The multiplexing is conducted by giving a code to each information prior to the recording. In this research the multiplexing is done with the theta modulation technique, i.e. using a rotated grating so that each information is coded by a certain angular direction of the spatial frequency of the grating. To recover the original information, the demultiplexing is done by ... "
Depok: Fakultas Teknik Universitas Indonesia, 1989
T-Pdf
UI - Tesis Membership  Universitas Indonesia Library
cover
Finita Textiani
Properties of fourier intensity filter for optical diferentiation
" Optical differentiation is one of many methods in the optical data processing that is useful for, e.g. image contouring. In this thesis, the differentiation filter is caried out based on the spatial filtering techniques. The ob ject is transformed with a Fourier lens to obtain the spatial frequency spectrum of the object at the Fourier plane. A spatial differentiation filter is placed at the Fourier plane. And finally, with another lens the filtered spectrum is ... "
Depok: Fakultas Teknik Universitas Indonesia, 1990
T-Pdf
UI - Tesis Membership  Universitas Indonesia Library
cover
Hari S. Soediro
Measurement of elastic modulus of optical fiber by acoustic vibration method
1982
D-Pdf
UI - Disertasi Membership  Universitas Indonesia Library
cover
Retno Wigajatri Purnamaningsih
Light scattering technique for measuring air pollutant particle concentration
" In this research a scattering technique employing f or war dscatter of a He-Ne C0,5328 pm, 30 mw) laser beam together with a 1024 x 1024 arrays CCD-V11 video camera as a detector was used for determining both particle size distribution and concentration. For determining the size distribution the "Differential Fourier Transform Technique" is chosen because it does not require matrix inversion or a priori knowledge of functional forms of size and it takes advantage ... "
Depok: Fakultas Teknik Universitas Indonesia, 1992
T-Pdf
UI - Tesis Membership  Universitas Indonesia Library