The value of the first reflection coefficient is larger than the second reflection coefficient plus 0.2 times the difference between 1 and the second reflection coefficient.
Property: α – normal incidence sound absorption coefficient; R – complex reflection coefficient; |R|² – energetic reflection coefficient
Property: α – normal incidence sound absorption coefficient; R – complex reflection coefficient; |R|² – energetic reflection coefficient
An impedance measurement is calculated from the reflection coefficient.
A reflection coefficient calculation unit (12) calculates a parameter (reflection coefficient) which represents a gradient of a spectrum distribution of an input acoustic signal for each frame.
The inner surface (5) of the upper portion (2) displays a high reflection factor.
The inventive device provides a reflection factor R in the order of 0.3 within a filtration bandwidth ranging from 1 to 10 kHz.
The factory light-level setting is 600 lux at a reflection factor of 0.3.
A glass surface with a low reflectance opaque aperture coating (12).
If the instrument-indicating meter indicates ne divisions with a standard mirror of E per cent reflectance, then, with a mirror of unknown reflectance, nx divisions will correspond to a reflectance of X per cent, in accordance with the formula:
If the instrument indicating meter indicates ne divisions with a reference standard mirror of E per cent reflectance, then, with a mirror of unknown reflectance, nx divisions will correspond to a reflectance of X per cent, given by the formula:
If the instrument-indicating meter indicates ne divisions with a standard mirror of E % reflectance, then, with a mirror of unknown reflectance, nx divisions will correspond to a reflectance of X %, in accordance with the formula:
The reflectance of the infrared reflecting layer to infrared radiation in the wavelength range from 800 to 1600 nm is more than 60% and the transmittance is less than 25%.
Station to test reflective devices (to measure the reflection coefficient of CIL)
The geometry of the mirrors of said cavity and the reflection coefficient at the signal wavelength enable to oscillate the signal beam on its fundamental mode.
Reflecting surface and coefficient of reflection
The link between the complex reflection coefficient and the sound absorption coefficient is α=1-|R|², where |R|² is the energetic reflection coefficient.
The sound absorption coefficient of a surface is α = 1 - r, where r is the energy reflection coefficient.
The first impedance creating device is configured to produce a first reflection signal that corresponds to a first reflection coefficient.
The reflection coefficient of the antenna may be used to determine the input impedance of the antenna.
The reflective layer (13) has a reflection coefficient of less than 4 % for the wavelength of the excitation signal and a reflection coefficient higher than 40 % for the wavelength of the fluorescent signal.
The second impedance creating device is configured to produce a second reflection signal that corresponds to a second reflection coefficient.
The barrier rib and the PDP exhibits desired values of the reflection coefficient for a visible light, mechanical strength and thermal expansion coefficient.
being S11 the reflection coefficient of the antenna.
A reflection coefficient comparator (13) calculates the magnitude of a change in the reflection coefficient between adjacent frames over a plurality of frames adjacent to each other and compares the result of the calculation with a threshold value.
The resulting substrates have advantageously a light reflection coefficient (R) less than 10 Cd/m2.
In the BCA, the low reflection ratio areas are formed by rows of pits.
The measurement unit measures the output power of a synthesizer, and the reflection coefficient.
One obtains the TOS while multiplying by 100 the coefficient of reflection
In such a surface acoustic wave device, the electrode can have a sufficiently large reflection coefficient.
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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