VW compact soil displacement meter

摘要

The present invention relates to a compact VW soil displacement meter (MINIATURE VIBRATING WIRE ROD EXTENSOMETER) that are used to accurately and precisely measure the surrounding deformation state such as a Public movement of one ground needle of construction-site rock locations, the hollow housing a plurality of springs installed a vibrating wire bonded integrally provided with a respective transformer therein and installed to extend the protected wire each length a spring coupled to the respective vibrating wire to another protective tube bar fixed to the respective ends integral to a tension change of the vibrating wire after ultra hayeoseo configure VW soil displacement gauge, to magnetize the vibrating wire of the tension is changed by an external force generated by applying a pulse to the coil of the transformer applied to a bar fixed to the output resonant frequency installed as measuring the change in the resonance frequency due to an output device of a civil engineering construction site Sanaa As it is an object to be measured accurately than a half of the resin layer or the behavior state.