choleretic
发表于 2025-3-27 00:37:05
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驳船
发表于 2025-3-27 02:43:02
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连锁,连串
发表于 2025-3-27 06:53:09
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Grandstand
发表于 2025-3-27 12:51:38
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intention
发表于 2025-3-27 16:59:38
Laser-Ultrasonics with a Single Laser for Generation and Detectiongeometry can be readily tested without any need for transducer orientation. This unique feature is important for numerous industrial applications since parts made of metals, polymers or composites of various kinds have often curved surfaces and complex shapes.
凌辱
发表于 2025-3-27 19:29:21
Measurements of Sound Velocities at High Temperatures by using Laser Generated Ultrasoundo overcome the problem.. In the method, a distorted optical beam from the rough surface is changed to a well collimated beam, thereby a conventional interferometer can be used retaining the sensitivity.
Visual-Acuity
发表于 2025-3-27 23:40:41
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追逐
发表于 2025-3-28 04:55:41
Sagnac Interferometer for Ultrasound Detection on Rough Surfaceserferences that may occur with long coherence sources. A random speckle modulation scheme has been incorporated to overcome the “speckle problem” that arises when the test object is rough. Examples of applications are also reported in this paper.
Thyroid-Gland
发表于 2025-3-28 07:57:44
Laser-Ultrasound Tissue Characterisation Methods for Potential Use in Laser Angioplasty Procedureson in the case of total or near total occlusions. More recently lasers have been used to ablate arterial blockages. However successful treatment is dependent on adequate guidance in order to ensure both precise alignment and correct identification of diseased areas.
奴才
发表于 2025-3-28 13:05:21
Pulse Parameter Influence on the Laser Generation of Acoustic Wavestection systems. The work focuses on the laser/materials interaction that occurs during the generation of ultrasonic waves, and considers a number of methods by which laser ultrasonic systems can achieve greater sensitivity through control of the laser generation source.