摘要: Presents an experiment using an absorption spectrophotometer to measure the wavelength dependence of light scattering. Use of Rayleigh and Mie theories; Measurement on the angular distribution of light scattered; Discussion on the concept of scattering cross-section and beam attenuation....
It is introduced that how to improve the ME99C to accurately measure the bandwidth of large NA multimode fibers at 850nm 1300nm wavelength. Comparing to the measurement results of PK2500, we discussed the influence of the launch condition to the measurement of multimode fibers bandwidth. Finely...
Consequently, the discrimination by viscosity of the oil tested was not possible. In this study a new approach is developed. The sensitivity of the ultrasonic reflectance method is enhanced with a quarter wavelength matching layer material. This material is interleaved between metal and lubricant to ...
The nondimensional transfer functions are plotted versus the non-dimensional wavelength, defined as λ/Lpp, where λ is the wavelength, while Lpp is the ship length between perpendiculars. Figure 5 shows the non-dimensional heave, pitch, and vertical relative motions, whereas Figure 6, Figure 7,...
5G mmWave base stations use millimeter waves in which the wavelength is very short. Due to this reason, the volume of the near field region is wide compared with that of the other base stations under 6 GHz. When the PD is measured in the near-field region, the E- and H-fields should...
Results indicate that the EPB group developed from the bottomside large-scale wave-like structure (LSWS) at about 195-210 km height with a characteristic zonal wavelength and longitudinal extension of about 450 km and 2250 km, respectively. The EPB group also caused periodic bottomside type ...