NBS Technical NoteU.S. Government Printing Office, 1981 |
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Page 1
... sensor for measuring the total E - field magnitude of complicated electromagnetic fields . Several prototype units of an advanced instrument have been fabricated and tested . This instrument , the EFM - 5 Electric Field Monitor , has ...
... sensor for measuring the total E - field magnitude of complicated electromagnetic fields . Several prototype units of an advanced instrument have been fabricated and tested . This instrument , the EFM - 5 Electric Field Monitor , has ...
Page 3
... sensor of EM fields of complicated structure . Most of the early attempts revealed severe limitations for designing a general - purpose probe . For example , thermal rf sensors based on absorbed heat energy or temperature rise in a ...
... sensor of EM fields of complicated structure . Most of the early attempts revealed severe limitations for designing a general - purpose probe . For example , thermal rf sensors based on absorbed heat energy or temperature rise in a ...
Page 5
... sensor functions in terms of the short - circuit current developed at the center of a receiving dipole . In tests at NBS , the dipole was center - loaded with a miniature incandescent bulb having approximate dimensions 2 mm long by 1 mm ...
... sensor functions in terms of the short - circuit current developed at the center of a receiving dipole . In tests at NBS , the dipole was center - loaded with a miniature incandescent bulb having approximate dimensions 2 mm long by 1 mm ...
Page 6
... sensor response time was quite slow . The radiation protection guide recommended by the American National Standards Institute ( ANSI ) for exposure to rf radiation is 10 mW / cm2 , in the 10 MHz to 100 GHz frequency range [ 3 ] . This ...
... sensor response time was quite slow . The radiation protection guide recommended by the American National Standards Institute ( ANSI ) for exposure to rf radiation is 10 mW / cm2 , in the 10 MHz to 100 GHz frequency range [ 3 ] . This ...
Page 8
... sensor having isotropic response [ 2 ] , in which the rf pickup is independent of field polarization and arrival direction for the incoming EM wave . Thus it is not necessary to determine experimentally the antenna orientation giving ...
... sensor having isotropic response [ 2 ] , in which the rf pickup is independent of field polarization and arrival direction for the incoming EM wave . Thus it is not necessary to determine experimentally the antenna orientation giving ...
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Common terms and phrases
antenna attenuation Backscatter response backscatter signal backscatter signature beam beam divergence Bureau of Standards C3Hg calculated calibration capture fractions components coupling loss dBV/m densimeter DEPARTMENT OF COMMERCE detector diameter diode dipole electric field electronic engineering equation experimental far-field fault signature Federal field distortion due field intensity field strength Figure frequency function graded-index fiber Haynes Hiza IEEE Trans index fibers input instrument isotropic Laboratory laser laser diode leaky modes lens logarithmic Magnetic field distortion measurement metering unit methane microbending MIXTURE mode filter mole fraction N₂ National Bureau near-field numerical aperture optical fiber OTDR output parameters peak percent perfectly conducting cylinder potentiometer pulse radiation angle radiation monitor range Rayleigh scattering Report Resistor scan Science sensor step-index fiber switch Table Tech technical Technology temperature transverse electromagnetic cell U.S. DEPARTMENT voltage waveguide wavelength ZERO
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