Nov 22, 2023 09:09
6 mos ago
27 viewers *
French term
fréquence harmonique de la fréquence de modulation
French to English
Science
Physics
Spectrometry
Context:
Selon un mode de réalisation, l’ensemble modulation est configuré pour utiliser une fréquence harmonique de la fréquence de modulation du rayonnement optique émis par la source de rayonnement optique comme fréquence de commande fm, de telle sorte que le spectre d’amplitude (R(λ)) et le spectre de phase (θ(λ)) caractérisent la non-linéarité d’un milieu se trouvant entre la source de rayonnement optique et l’ensemble collecte.
This has been translated as:
harmonic frequency of the modulation frequency
Should this be harmonic frequency of the frequency modulation?
TIA Chris.
Selon un mode de réalisation, l’ensemble modulation est configuré pour utiliser une fréquence harmonique de la fréquence de modulation du rayonnement optique émis par la source de rayonnement optique comme fréquence de commande fm, de telle sorte que le spectre d’amplitude (R(λ)) et le spectre de phase (θ(λ)) caractérisent la non-linéarité d’un milieu se trouvant entre la source de rayonnement optique et l’ensemble collecte.
This has been translated as:
harmonic frequency of the modulation frequency
Should this be harmonic frequency of the frequency modulation?
TIA Chris.
Proposed translations
(English)
| 4 +1 | harmonic frequency of the modulation frequency |
Kartik Isaac
|
| 5 | harmonic (frequency) of the (optical) modulating frequency |
Johannes Gleim
|
Proposed translations
+1
6 mins
Kartik Isaac
Switzerland
Switzerland
Native in English
Works in field
Switzerland
The Translating Engineer
Native in: English (Variants: US, UK) 
Works in: German to English, French to English
Related KudoZ points
:
8
Selected
harmonic frequency of the modulation frequency
See this article on modulation frequency from ScienceDirect: https://www.sciencedirect.com/topics/engineering/modulation-...
Peer comment(s):
| neutral |
Johannes Gleim
: automatic translation! And references do not support "spectrometry"
2 hrs
|
| agree |
Kim Metzger
: harmonic order of the modulation frequency https://iopscience.iop.org/article/10.1088/0022-3727/29/3/00...
5 hrs
|
4 KudoZ points awarded for this answer.
Comment: "Thank you."
3 hrs
Johannes Gleim
Works in field
40 years Engineer, 20 years translations
Native in: German
Works in: English to German, German to English, French to German, and 6 more.
Related KudoZ points
:
2
harmonic (frequency) of the (optical) modulating frequency
In this study, we propose and demonstrate the use of a multiple harmonics of sinusoidal modulation as an intermediate alternative to the widely used modulation methods: sinusoidal and square-wave modulation.
:
Consequently, a further increase in the modulation frequency will result in a negligible improvement in the ARW. On the other hand, RIN is still the dominant source of noise. In principle, increasing the number of harmonics in the modulation to 𝑁ℎ=4 or more can decrease the RIN.
https://www.mdpi.com/1424-8220/23/9/4442
Experimental Study on Variation of Signal Amplitude in Radio-Over-Fiber Transmission Induced by Harmonics of Modulation Sidebands Through Fiber Dispersion
https://ieeexplore.ieee.org/document/6832426
Signals at the modulation frequency and its harmonics were calculated by digital phase-sensitive detection. The number of harmonics with signal intensity greater than noise increases as the ratio of the modulation amplitude to the narrowest peak increases.
:
The multiharmonic reconstruction methodology means that the selection of the modulation amplitude that can be used without spectral distortion is no longer tightly tied to the linewidth of the narrowest line.
https://www.sciencedirect.com/science/article/abs/pii/S10907...
Various reflected and transmitted waves at different Floquet frequencies are determined by rigorously formulating the temporal dynamics and are found to give multiharmonic resonances.
https://journals.aps.org/prapplied/abstract/10.1103/PhysRevA...
Quantum systems with multiharmonic dressing have been extensively investigated and exhibited various novel phenomena and technologies by virtue of their robust electromagnetic response.
:
The self-generated Floquet modulation includes first and second harmonics, which are contributed to by linear and nonlinear processes from the weak-dressed field, respectively. The self-generated Floquet modulation dresses the alignment absorption spectra into two continua.
https://journals.aps.org/pra/abstract/10.1103/PhysRevA.106.0...
Two multi-harmonic detection methods for wavelength modulation spectroscopy (WMS) systems are presented and compared. The two possibilities discussed in this paper are: simultaneous curve fitting of multiple harmonic spectra, and reconstruction of the transmission from harmonic coefficients.
https://www.researchgate.net/publication/233855511_Multi-har...
In order to smooth the clumsy clause, I suggest reordering the particles as follows: "... configured to use a harmonic frequency of the optical modulating frequency ..."
:
Consequently, a further increase in the modulation frequency will result in a negligible improvement in the ARW. On the other hand, RIN is still the dominant source of noise. In principle, increasing the number of harmonics in the modulation to 𝑁ℎ=4 or more can decrease the RIN.
https://www.mdpi.com/1424-8220/23/9/4442
Experimental Study on Variation of Signal Amplitude in Radio-Over-Fiber Transmission Induced by Harmonics of Modulation Sidebands Through Fiber Dispersion
https://ieeexplore.ieee.org/document/6832426
Signals at the modulation frequency and its harmonics were calculated by digital phase-sensitive detection. The number of harmonics with signal intensity greater than noise increases as the ratio of the modulation amplitude to the narrowest peak increases.
:
The multiharmonic reconstruction methodology means that the selection of the modulation amplitude that can be used without spectral distortion is no longer tightly tied to the linewidth of the narrowest line.
https://www.sciencedirect.com/science/article/abs/pii/S10907...
Various reflected and transmitted waves at different Floquet frequencies are determined by rigorously formulating the temporal dynamics and are found to give multiharmonic resonances.
https://journals.aps.org/prapplied/abstract/10.1103/PhysRevA...
Quantum systems with multiharmonic dressing have been extensively investigated and exhibited various novel phenomena and technologies by virtue of their robust electromagnetic response.
:
The self-generated Floquet modulation includes first and second harmonics, which are contributed to by linear and nonlinear processes from the weak-dressed field, respectively. The self-generated Floquet modulation dresses the alignment absorption spectra into two continua.
https://journals.aps.org/pra/abstract/10.1103/PhysRevA.106.0...
Two multi-harmonic detection methods for wavelength modulation spectroscopy (WMS) systems are presented and compared. The two possibilities discussed in this paper are: simultaneous curve fitting of multiple harmonic spectra, and reconstruction of the transmission from harmonic coefficients.
https://www.researchgate.net/publication/233855511_Multi-har...
In order to smooth the clumsy clause, I suggest reordering the particles as follows: "... configured to use a harmonic frequency of the optical modulating frequency ..."
Peer comment(s):
| neutral |
philgoddard
: "Harmonic of the modulation frequency" is probably correct, but then you contradict this in your last sentence. I'm no physicist, but you can't say "frequency of the frequency". And your last five references aren't relevant.
1 hr
|
Discussion
The fundamental frequency is also called the 1st harmonic; the other harmonics are known as higher harmonics. As all harmonics are periodic at the fundamental frequency, the sum of harmonics is also periodic at that frequency. The set of harmonics forms a harmonic series.
:
The nodes of a vibrating string are harmonics.
:
Harmonics may also be called "overtones", "partials" or "upper partials". The difference between "harmonic" and "overtone" is that the term "harmonic" includes all of the notes in a series, including the fundamental frequency (e.g., the open string of a guitar) while the term "overtone" only includes the pitches above the fundamental.
https://en.wikipedia.org/wiki/Harmonic
The best way to compare the harmonics is with a string in which both the fundamental and the higher octaves, e.g. c', c'', c''', resonate.
These can be analysed by Fourier analysis
See:
Fourier transform of bass guitar time signal of open string A note (55 Hz).
https://en.wikipedia.org/wiki/Fourier_analysis
As a graduate in electrical engineering, I also had to study Fourier analysis.