1 / 15

Ultrasonic Investigations of Glass Samples: Velocity Measurements and Waveform Analysis

This study presents ultrasonic investigations of glass samples conducted at the University of Houston. Utilizing a pulser-receiver setup with 1MHz transducers, both compression and shear wave velocities were measured via pulse transmission and echo techniques. The research includes a detailed comparison of shear waveforms in three orthogonal directions for a blank glass sample and a glass sample (GS1) with laser bubble inclusions. Key findings discuss variations in wave velocity depending on the sample orientation and presence of inclusions. Visual data, including sample diagrams and waveforms, support the analysis.

kimi
Download Presentation

Ultrasonic Investigations of Glass Samples: Velocity Measurements and Waveform Analysis

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. University of Houston Ultrasonic investigations of Glasssamples By N. Dyaur June 7, 2010

  2. Ultrasonic pulls transmission technique for Velocity measurements. Transducers: Central frequency of P- and S-wave - 1MHz Device: Transducer and specimen holder Digital Oscilloscope Pulser-receiver Waveform on computer monitor Specimen

  3. Pulse-transmission technique Pulse-echo technique

  4. Shear waveform for Blank Glass sample

  5. CV CV Comparison of Waveforms of Shear wave for three orthogonal directions of blank glass sample. G1 is the shortest distance and G3 is the largest distance. S-G-arrow show first point of arrival of S-wave.

  6. Glass sample 1 (GS1) with inclusion of layered laser bubbles Inclusion: 26 x 48 x 48 mm Glass : 79 x 149 x209 mm 1 mm

  7. Spectrum of Shear wave . Blank Glass.

  8. Pictures of Glass sample 1 (GS1) 48 mm 209 mm 1 mm

  9. Velocity of Compressional wave in the Glass sample 1 with included layered zone. Position of transducers and related velocity of p-wave (f= 1.MHz) CV CV

  10. Comparison of measured velocity and estimated velocity for glass inclusion and inclusion zone. Sample GS1. CV CV Difference in velocity for layered zone depending on direction CV Zone Changes in velocity in % CV

  11. CV Comparison of maximum Amplitude in first arrival Amplitude in Glass and Glass +Inclusion Zone . CV CV

  12. Glass sample GS1 Layers in zone on laser bubbles inclusion. Orientation of laser bubbles in layer (red arrow) 1 mm

  13. View in direction of orientation of laser bubbles. Glass sample GS1. 1 mm

  14. Structure of laser bubble Layer. Glass sample GS1. 1 mm

  15. Thank you!

More Related