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ABCは都度調整する。
安全知識循環型社会構築事業
Feb 17, 2007 15:31
17 yrs ago
Japanese term

9次成分によるノイズと判定され

Japanese to English Tech/Engineering Automotive / Cars & Trucks defective tires
refering to noise rating for car tires
Proposed translations (English)
5 +2 We have determined that it is 9th order noise
4 We have determined it to be a noise due to the 9th degree harmonic distortion ...
2 We have determined it to be a noise due to the 9th order component

Discussion

Roger Johnson (asker) Feb 17, 2007:
Hi Paul thanks for the help. I think this has to do with the sound the tire pattern makes on the road/surface?? any help?
paul_b Feb 17, 2007:
Are you sure that is literal noise in that sentence and not noise as in 'background level' / 'non-significant'? I'm thinking something like "judged to be noise after constituent analysis with nine-degrees of freedom" but that's mostly guesswork.

Proposed translations

+2
2 days 1 hr
Selected

We have determined that it is 9th order noise

I work for a customer who uses this exact same phrasing in this context (automotive acoustic analysis), in Japanese and English. There is 4th order, 2nd order, etc etc. A lot of times it is talking about where certain peaks and dips occur on graphs, and they describe the type of noise by the order. They will also say things like 'We want to increase the acoustic attenuation by modifying 2nd order noise..." etc.

Good luck!
Peer comment(s):
agree KathyT
28 mins
Thanks Kathy.
agree RieM : and thank you, conejo-san. Very nice description; it cleared my mind!
9 hrs
Thanks!
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4 KudoZ points awarded for this answer. Comment: "Selected automatically based on peer agreement."
1 hr

We have determined it to be a noise due to the 9th degree harmonic distortion ...

I think 9次 refers to the nineth degree harmonic distortion of the fundamental frequency. Perhaps this is an analysis of the noise using a spectrum analyzer? Typically, however, harmonic distortion components get smaller for higher degrees and at the 9th it is almost negligible. So, if it is large, either I am mistaken, or the author is???

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Note added at 9 hrs (2007-02-18 00:32:39 GMT)
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Sorry, but please replace "degree" with "order." Also it's ninth.
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19 hrs

We have determined it to be a noise due to the 9th order component

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