Shear imaging and interferometric sensor with multi-directional dynamic phase shift and method of detecting and measuring vibration modes

• Main Authors: VIEIRA FANTIN, ANA LUCIA, ALBERTO GONCALVES JUNIOR ARMANDO, S ¨ ¢ NCHEZ BARRERA, ESTEVE, WILLEMAN DANIEL PEDRO, DA MARCINO SUAREZ SERGIO, BENEDET, MAURO EDUARDO, DIAZ FONSECA MARTINS FABIANA, VAN PASSEABRA DE ALMEIDA ANA LUCIA
• Format: Patent
• Language: Chinese; English
• Published: 23.12.2022
• Subjects: MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING

The invention relates to a shear imaging and interferometric sensor with multi-directional dynamic phase shift (DPSI). The present invention uses a configuration having three fixed prisms or a single fixed three-sided optical prism having the same effect as the three prisms to simultaneously obtain three images with phase shifts. The invention also relates to a method for detecting and measuring vibration modes using the sensor. 本发明涉及具有多方向动态相移(DPSI)的剪切成像和干涉测量传感器。本发明使用具有三个固定的棱镜或者单个固定的三面光学棱镜的配置，所述单个固定的三面光学棱镜具有与三个棱镜相同的效果，以同时获得具有相移的三个图像。本发明还涉及使用所述传感器检测和测量振动模式的方法。