Multifunctional seismic hydrophone tester

Abstract

The invention relates to a multifunctional seismic hydrophone tester, which is characterized in that a signal generator consists of a wave detector function test signal source generator and a frequency controller which is connected with a sine wave signal source generator; a simulation / digital conversion circuit is sequentially connected with a signal regulating circuit and a duplex sensor matching and testing relay to form a data collection plate; the signal generator and the data collection plate are connected with a PC104 embedded-type computer through an FIFO bus interface and a PC104 bus, the sine wave signal source generator is connected with a loudspeaker through a power amplifier, the wave detector function test signal source generator is connected with the duplex sensor matching and testing relay, and the duplex sensor matching and testing relay is connected with a reference crystal or a standard wave detector and a wave detector to be tested which is arranged inside a resonance test box; and the loudspeaker is arranged on one end of the resonance test box. The multifunctional seismic hydrophone tester can thoroughly test and analyze the natural frequency, sensitivity, polarity, DC resistance, AC impedance and the leakage current index of the electric wave detector.

Description

technical field [0001] The invention relates to a multifunctional testing and analyzing instrument for piezoelectric detectors in seismic field data acquisition components. Background technique [0002] In the construction of seismic exploration, the geophone is responsible for picking up the weak signal of seismic exploration. The performance of the geophone is directly related to the quality of seismic data acquisition, so it is particularly important to test the geophone. As the oil exploration area continues to expand from land to water, piezoelectric geophones are used more and more as sensors in seismic exploration water. It is very necessary to conduct comprehensive testing and analysis of the performance of piezoelectric geophones on a regular basis. The currently used piezoelectric detector testing equipment can only test the sensitivity of the piezoelectric detector (some can test the polarity at the same time), and cannot test and analyze other performance and ind...

AI Technical Summary

Problems solved by technology

The currently used piezoelectric detector testing equipment can only test the sensitivity of the piezoelectric detector (some can test the polarity at the same time), and cannot test and analyze other performance and indicators (such as frequency, DC resistance, AC impedance, leakage) , the test parameters are single, which cannot meet the requirements of seismic exploration quality control

Moreover, the test methods of each test equipment are commercial secrets and have not been made public.

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