Force measurement device applied to anti-seismic vibration test

Abstract

The invention discloses a force measurement device applied to an anti-seismic vibration test. The device comprises an acceleration sensor, a battery arranged around the acceleration sensor and a circuit module arranged in the battery; at least one storage card is detachably connected into the circuit module, and the acceleration sensor is powered by the battery and a measurement signal of the acceleration sensor is transmitted and stored into the storage card in the circuit module. According to the force measurement device provided by the invention, the acceleration sensor, a power supply andthe storage card used for storing test data are combined to form a structural component running independently, cables such as a power line and a data line stretching to the outside can be omitted, thedamage of a cable outlet to structure leakproofness is avoided, the additional weight is reduced, configuration of multiple expensive data collection devices cannot be needed, configuration of the additional power supply adapter is not needed, the debugging work such as impedance matching on the site is not needed either, a common card reader can be used after the storage card is taken down afterdata collection, and a quantity of capital and time can be saved.

Description

technical field [0001] The invention relates to a detection device used in the anti-seismic vibration test of a building, in particular to a test device used in the anti-seismic vibration test of a building to detect the force of the structural components of the building in the process of simulating the seismic vibration. force device. Background technique [0002] Earthquake is a sudden natural disaster. A destructive earthquake often causes very serious economic losses and casualties in a very short period of time. Governments of various countries have taken active and effective measures to reduce earthquake disasters. In earthquakes, damaged or collapsed buildings are the main cause of heavy casualties. Due to the huge destructive effect of earthquakes, many countries, especially earthquake-prone countries, have invested huge manpower and material resources to carry out earthquake-resistant research on buildings such as houses, bridges, elevated highways, and nuclear pow...

AI Technical Summary

Problems solved by technology

In particular, the buildings in the test process are usually reduced models, and their weight is not large, but the force measuring device is installed on its local structural components, and the additional weight is already close to the weight of the local structural components of the tested building. , it will obviously affect the vibration condition of its local structural components, which may cause test errors

[0005] In addition, during the building destruction test, additional data cables, power cables and other cables are wound on the surface of the structural components, which will restrict the damaged structural components from the main body of the building and interfere with the accuracy of the measurement results

Therefore, it often takes a lot of labor to design the layout of cables during the test, but the accidental influence of cables on the measurement results is still unavoidable

[0006] Moreover, with the increase of the additional weight brought by the cable, it is also necessary to consider the influence of the resonance frequency of the entire test device on the test results. The excessive weight limits the force measuring device to be connected to the building by rigid screws to ensure Connection strength, it is difficult to flexibly adjust the frequency of use to avoid interference

[0007] In addition, additional cables need to be provided with additional cable outlets on the force measuring device, which destroys the sealing of the structure, is not conducive to waterproof, high temperature resistance, and electromagnetic interference, and affects the sensitivity and accuracy of the force measuring device.

more importantly, figure 1 The force-measuring device shown in this existing method requires impedance matching with the data acquisition device connected to it to eliminate signal interference, which often requires an additional constant-current adapter for the force-measuring device, or a stable power supply provided by the data acquisition device. It even needs to be equipped with dual power supply, which undoubtedly increases the equipment cost a lot, and also requires a lot of on-site debugging work, which is time-consuming, laborious and expensive, and very inconvenient

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