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我们已研制出一种高效压电传感器。在油井和其它井眼中。它既可以用作震源,也可用作地震检波器。该传感器的设计是新颖的,其结构是将一个圆柱形空心压电陶瓷材料紧紧地装在一个紧贴在外的钢管内表面上,此压电陶瓷柱的长度/半径比率相对较大,从而组成一个圆柱形压电陶瓷与金属材料弯曲机。这种压电圆柱形组合结构为传感器设计带来了许多灵活性,为用于井到间震源和检波器探头的研制带来很大便利。最近,应用两个相匹配的圆柱形弯曲机震源与检波器进行了野外实验测试,震源与检波器工作范围在500-5000Hz,这种圆柱形弯曲机震源具有非常好的波形重复性,其可靠性
We have developed a highly efficient piezoelectric sensor. In wells and other boreholes. It can be used as both a source and a geophone. The design of the sensor is novel and its construction is such that a cylindrical hollow piezoceramic material is tightly attached to the inner surface of a steel pipe in close contact with it and the length / radius ratio of the piezoelectric ceramic column is relatively large so that Composed of a cylindrical piezoelectric ceramic and metal bending machine. This piezo-electric cylindrical combination gives the sensor design a lot of flexibility and is great for the development of well-to-ground sources and detector probes. Recently, field experiments were performed using two matched cylindrical bender sources and receivers. The working range of the source and detector was 500-5000 Hz. The cylindrical bender source has very good waveform repeatability and is reliable Sex