Hall-type bridge vibration detection sensor

Abstract

A Hall-type bridge vibration detection sensor comprises a glass tube, a magnetic steel column, a damping disc, a first hoop, an upper part spring, screw holes, sawtooth patterns, an upper clamping plate, an upper part sleeve, glass cement, a shielding cover, a circuit board, a Hall sensor, tin soldering corners, a four-core shielded wire, a wire clamp, a lower clamping plate, a lower part spring, a lower part sleeve and a second loop, wherein the magnetic steel column, the damping disc, the upper part spring and the lower part spring form a sensor movable portion; the glass tube, the circuit board and the Hall sensor form a sensor fixed portion; the first hoop, the upper clamping plate, the upper part sleeve, the shielding cover, the wire clamp, the lower clamping plate, the lower part sleeve and the second loop form a subsidiary portion. The Hall-type bridge vibration detection sensor has the advantages of being easy in manufacturing, simple in structure, low in cost and high in sensitivity, free from the need of additionally arranging a pre-amplification circuit and the like, and can be applied to vibration signal detection of wood bridge, cement bridge and iron bridge.

Description

technical field [0001] The invention relates to a vibration sensor, in particular to a Hall-type bridge vibration detection sensor, which belongs to the technical field of bridge detection. Background technique [0002] Bridge vibration detection is a routine parameter detection, which plays an important role in the quality evaluation of bridges. At present, the commonly used technical methods include capacitive, inductive, piezoelectric, photoelectric, laser, optical fiber and GPS. , the first four methods are relatively traditional, and a preamplifier circuit needs to be set up to offset the interference signal, while the latter three methods are more advanced, but the system is more complicated, the manufacturing cost is higher, and the instrument or sensor accessories are more expensive. Contents of the invention [0003] The object of the present invention is to provide a Hall-type bridge vibration detection sensor which is easy to manufacture, simple in structure, lo...

AI Technical Summary

Problems solved by technology

[0002] Bridge vibration detection is a routine parameter detection, which plays a very important role in the quality evaluation of bridges. At present, the commonly used technical methods include capacitive, inductive, piezoelectric, photoelectric, laser, optical fiber and GPS. , the first four methods are relatively traditional, and a preamplifier circuit needs to be set up to offset the interference signal, while the latter three methods are more advanced, but the system is more complicated, the manufacturing cost is higher, and the instrument or sensor accessories are more expensive

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