基于光纤传感器的石油井下压力测试仪的设计-Perforation and fracture is a key technology in the process of oil exploration and development, perforation and fracture instantaneous dynamic pressure parameters provide a theoretical basis for evaluating of perforating and fracturing effecting, deepen the mechanism of perforation and fracture process and new perforation product development. In order to test the dynamic pressure signal when perforation and fracture, developed a dynamic pressure tester (P～t tester)