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heterodyne measurement

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heterodyne measurement [′hed·ə·rə‚dīn ′mezh·ər·mənt]
(electronics)
A measurement carried out by a type of harmonic analyzer which employs a highly selective filter, at a frequency well above the highest frequency to be measured, and a heterodyning oscillator.
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Statistical methods will be developed to evaluate the overall uncertainty of the estimated power and phase spectrum of the oscilloscope and photodiode impulse response functions, and time domain measurements will be compared to heterodyne measurements.
Statistics and measurements by Croarkin, M. Carroll / Journal of Research of the National Institute of Standards and Technology
Based on proprietary MEMs technology, the PHOENIX[TM] 1400 product offers best-in-class wavelength precision and tuning linearity, making it ideal for telecommunications test and measurement as well as a variety of other applications including optical frequency domain reflectometry (OFDR) systems, FIBER-BRAGG sensing, metrology, near-infrared spectroscopy and tomography, heterodyne measurements and fiber component characterization for dense wavelength division multiplexing (DWDM).
Luna Announces PHOENIX 1400 Benchtop Tunable Laser by Business Wire
 
 
 
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