Ultrasonic Velocity and Properties of Wood-based Materials
碩士 === 國立屏東科技大學 === 木材工業系 === 92 === The purpose of this study was to investigate the ultrasonic wave velocities in wood and particleboard by the nondestructive testing method with ultrasonic. Five probes with different ultrasonic frequencies (40kHz, 100kHz, 250kHz, 500kHz and 1MHz) were used to eva...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Others |
| Language: | zh-TW |
| Published: |
2004
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| Online Access: | http://ndltd.ncl.edu.tw/handle/89441327874644164121 |