Move the fluid level detector to the simulation well or well site for development and testing not only has high cost and low efficiency,but also seriously affect the development progress of the instrument.To solve this problem,a solution of multi-purpose storage acoustic signal simulator is proposed in this paper.The signal simulator takes FPGA as the main control module and completely reproduces the characteristics of infrasonic signal in oil well dynamic liquid level detection through direct digital frequency synthesis(DDS).The acoustic signal source can be either from the acoustic data of the oil well site or from the arbitrary waveform data edited and synthesized by the user.Experimental results show that the multi-purpose storage acoustic signal simulator designed can not only simulate various field infrasound signals of oil Wells to meet the needs of self-inspection and testing of dynamic liquid level detector,but also can be used as a general signal generator.
关键词
声波信号模拟器/多用途/存储式/直接数字频率合成/信号发生器
Key words
acoustic signal simulator/multipurpose/storage type/direct digital frequency synthesis/signal generator
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