difference sweep

Russian translation: разность уровней [эхо-]сигналов в дефектной области и в бездефектной области...

14:00 Jan 15, 2008

English to Russian translations [PRO]
Tech/Engineering - Engineering (general) / дефектоскопия

English term or phrase: difference sweep

Описывается режим MIA (mechanical impedance analysis) для дефектоскопии композитных материалов.

Occasionally, the dot in the RUN mode will behave as if it were attached to the top of the display. It will not drop when the probe is moved over the section of the test sample containing the flaw. This is a result of a condition that occurs during the setup procedure. Normally during setup, the amplitude of the resonant frequency through the section of the good part will be higher than the amplitude of the resonant frequency through the section of the bad part. This condition will cause the dot to drop to a lower level on the display when the probe passes over a flaw. If the dot tries to deflect “up” when the probe passes over the bad part, instead of the desired “down” deflection toward the alarm box, a different procedure is required.

Method 1 (preferred)
Choose another operating frequency. The peak automatically chosen by the instrument may be caused by the bad part having a greater signal at that particular frequency. Usually a lower frequency will solve the problem. The new software will not select a large negative peak. In rare instances, the ***difference sweep*** may never be positive. If this is the case, try methods 2 or 3 below.

Спасибо

yanadeni (X) KudoZ activity Questions: 1061 (4 open) (1 without valid answers) (91 closed without grading) Answers: 883 Canada
Local time: 03:37

Russian translation:разность уровней [эхо-]сигналов в дефектной области и в бездефектной области...

Explanation:
В данном случае, ИМО, можно написать примерно так:

разность уровней [эхо-]сигналов в дефектной области и в бездефектной области
ИЛИ
[эхо-]сигнал в дефектной области сильнее [эхо-]сигнала в бездефектной области во всем диапазоне частоты

Описана ситуация, противоположная рисунку 17 на странице http://www.olympusndt.com/ru/applications-and-solutions/ndt-... : кривая для BAD выше кривой для GOOD во всем диапазоне частот, т.е. разность уровней сигналов GOOD-BAD всегда < 0.

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ingeniero
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Local time: 10:37

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разность уровней [эхо-]сигналов в дефектной области и в бездефектной области...

ingeniero

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разность уровней [эхо-]сигналов в дефектной области и в бездефектной области...

ingeniero
Ukraine
Local time: 10:37
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difference sweep

Russian translation: разность уровней [эхо-]сигналов в дефектной области и в бездефектной области...

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difference sweep

Russian translation: разность уровней [эхо-]сигналов в дефектной области и в бездефектной области...

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