Ultrasound materials testing – principle
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From the delay differences of the echoes recorded, layer thicknesses, errors and consistency can be calculated with oscilloscope graphs.
English, German
2018-04-22
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In engineering the checking of the quality of materials is an important task. A cheap way of testing materials where the material to be tested is not destroyed is based on the reflection of sound on interfaces.
Information and ideas:
These tasks are good for showing how behaviour of sound is used in practice.
Furthermore, internet research is good for explorative learning.
Relevant for teaching:
Sound/acoustics: parameters
Vibration and waves
Information and ideas:
These tasks are good for showing how behaviour of sound is used in practice.
Furthermore, internet research is good for explorative learning.
Relevant for teaching:
Sound/acoustics: parameters
Vibration and waves
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Illustration
Physics; Technology
Grade 5 to 6; Grade 7 to 9; Grade 10 to 13
Middle/high school; Vocational training
Electroacoustics; Sound; Wave (physics); Echo; Electroacoustics; Sound field; Sound wave
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