Novel bending element for measuring shear wave velocity and manufacturing method thereof

• Main Authors: MENG LONGLONG, BA TE, TAN RONGJIAN, CHEN JIAKAI
• Format: Patent
• Language: Chinese; English
• Published: 26.07.2024
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES; MEASURING; PERFORMING OPERATIONS; PHYSICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TESTING; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The invention discloses a novel bending element structure for measuring shear wave velocity and a manufacturing method thereof. The front end and the rear end of the bending element sleeve are sleeved with the two sealing rings used for damping and sealing, the piezoelectric ceramic plate is completely installed in the sleeve, epoxy resin is used in the sleeve for sealing, the cylindrical sleeve is uniform in stress distribution, and the situations of cracks, short circuits and the like are not prone to occurring. Good signal quality and high signal-to-noise ratio during shear wave velocity testing are guaranteed, and testing requirements in various environments are met due to the simple structure. 本发明公开了一种用于测量剪切波速的新型弯曲元结构及其制作方法。弯曲元套筒前后端套有两个密封环用于减震和密封，压电陶瓷板完全装入套筒内部，套筒内使用环氧树脂进行密封，圆柱形的套筒应力分布均匀，不易出现裂缝、短路等情况。保证了剪切波速测试时良好的信号质量，较高的信噪比，简单的结构满足了多种环境下测试的需求。