Interlayer displacement angle measurement apparatus

Abstract

The invention provides an interlayer displacement angle measurement apparatus. The apparatus comprises a transmission rod, a first-stage coaxial disc, a second-stage coaxial disc and a rotating shaft type angle sensor, wherein the upper end of the transmission rod is connected with an upper-layer beam through a first fixation member and can vertically slide relative to the first fixation member; the lower end of the transmission rod is fixedly connected with the first-stage coaxial disc; the first-stage coaxial disc is fixedly connected with a local-layer beam through a second fixation member and can rotate relative to the second fixation member; the second-stage coaxial disc and the rotating shaft type angle sensor are fixed on the local-layer beam; the diameter of the first-stage coaxial disc is greater than the diameter of the second-stage coaxial disc; the diameter of the second-stage coaxial disc is greater than the diameter of a rotating shaft on the rotating shaft type angle sensor; and the first-stage coaxial disc, the second-stage coaxial disc and the rotating shaft on the rotating shaft type angle sensor are connected through a belt transmission mode or a gear transmission mode. By using the apparatus provided by the invention, high-precision direct measurement can be carried out on an interlayer displacement angle, and the measurement precision of the interlayer displacement angle is improved.

Description

technical field [0001] The invention relates to the technical field of engineering measurement, in particular to a device for measuring interlayer displacement angles. Background technique [0002] The interstory displacement angle of the structure is an important index to measure the dynamic response of the structure, and it is an important factor in judging whether the structural model conforms to the specification during the structural shaking table test. However, the prior art lacks a method for real-time measurement of the interstory displacement angle in the structural shaking table model test. [0003] At present, the sensors for measuring angles in real time are mainly rotating shaft angle sensors. However, regardless of the structure as a whole or the structural model, the interstory displacement angle is generally very small (generally <2°), therefore, the interstory displacement angle cannot be accurately measured by using a rotating shaft angle sensor. There...

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Problems solved by technology

[0004] It can be seen that in the prior art, it is difficult to guarantee the accuracy of small angle measurement by the angle sensor usually used, so it can only be measured in an indirect way, but cannot directly measure the interlayer displacement angle with high precision

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