Radio detector for seismic exploration or vibration test

Abstract

The invention discloses a radio detector for seismic exploration or vibration test. At least a pair of paired radio detector core bodies with consistent performance are installed in a rigid outer shell (2) made of magnetic materials in the form of head-to-head or bottom-to-bottom, a tail cone (5) or a tail base (12) is rigidly connected with the rigid outer shell (2); when a pair of radio detector cores are formed, two pairs of output signals are linked in parallel or in series reversely to form a pair of output signals as the output signal; when there are more than two pairs of radio detector cores, same-phase output signals of the radio detector cores at one side are linked in series or in parallel to form a pair of output signals; two pairs of output signals at both sides are linked in series or in parallel reversely to form a pair of output signals as the output signal. By using magneto-electrical type radio detector cores with matured technology and low cost, the radio detector basically removes the interference or false frequency of cross vibration on the radio detector; the radio detector is applicable to the analyzing field of the seismic exploration including slot wave exploration and various vibration tests.

Description

technical field [0001] The patent of the invention relates to a geophone for seismic exploration or vibration testing, which can eliminate the interference effect or aliasing phenomenon of lateral vibration on the geophone, and is mainly used in the field of seismic exploration in resource and engineering surveys or non-destructive testing that requires vibration testing. technical background [0002] Magnetoelectric geophones or moving coil geophones commonly used in geophysical exploration or vibration testing have good stability, mature technology and low price, and tens of thousands of them are produced and used every year around the world. Each core of the magnetoelectric detector has its inherent coupling direction, and the vibration from this direction is received by the core of the magnetoelectric detector; however, in practical applications, the core of the magnetoelectric detector is from the vertical The lateral vibration due to its inherent coupling direction wil...

AI Technical Summary

Problems solved by technology

Due to the special interference signal, it can only be improved to a certain extent by improving the performance of the core structure such as the internal leaf spring. However, due to the necessity of the spring, it is impossible to eliminate this interference at all, and it is difficult to solve it with a single core detector. This problem has always troubled engineers and technicians in the geophysics community

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