Pendulum mass of seismometer needed not to adjust level

Abstract

The invention provides a pendulum mass of a seismometer needed not to adjust level. The pendulum mass comprises a pendulum mass bracket, a pendulum hammer, a zero-adjusting mechanism, a zero-positiondetection and control circuit and a magnetic steel assembly, wherein the magnetic steel assembly is arranged in the pendulum bracket; and the pendulum hammer is connected to the pendulum bracket through a pendulum mass reed, a reed mounting plate and the zero-adjusting mechanism. The pendulum mass reed comprises two groups of reeds (totally four) which are arranged on the left and right sides of the pendulum mass bracket, the upper ends of the two groups of reeds are fixedly connected to fixed ends on the left and right sides of the pendulum hammer, separately, and the lower ends of the two groups of reeds are connected to the pendulum mass bracket through the reed mounting plate and the zero-adjusting mechanism. According to the pendulum mass provided by the invention, a leveling device needs not to be configured additionally, the pendulum mass can be mounted at any angle, is adjusted to a normal working state automatically, is simple in structure, can guarantee the detection precision of the seismometer and is wide in application range.

Description

technical field [0001] The invention relates to a pendulum body of a seismometer, in particular to a pendulum body of a seismometer without level adjustment. Background technique [0002] After the existing seismometer is installed in the working environment, it generally needs to be leveled and zeroed before work, so as to adjust the seismometer to a horizontal normal working state. Among them, leveling refers to adjusting the pendulum body to the installation horizontal direction of the original installation of the seismometer, and the seismometer is placed on the horizontal plane for original installation; zero adjustment is to adjust the zero position of the pendulum body of the seismometer, that is, adjust the capacitor plate to zero state. [0003] For seismometers installed in working environments that are easy to operate manually, the leveling can generally be achieved by manually adjusting the feet; for seismometers installed in working environments such as deep we...

AI Technical Summary

Problems solved by technology

[0003] For seismometers installed in working environments that are easy to operate manually, the leveling can generally be achieved by manually adjusting the feet; for seismometers installed in working environments such as deep wells and seabeds, manual adjustment is difficult and impossible. Making special leveling devices such as gimbals and leveling bases for seismometers to achieve leveling is not only complex in structure, bulky, limited in leveling range, high in cost, but also high in power consumption, which increases the difficulty of designing the whole seismometer This reduces the working reliability of the seismometer. At the same time, the structure of the leveling device will cause additional high-frequency parasitic resonance and coupling problems to the seismometer, which directly affects the detection accuracy of the seismometer.

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