Supersonic deformeter

A strain gauge and ultrasonic technology, applied in the field of ultrasonic strain gauges, can solve the problems of difficulty in judging the change of sound velocity, short life of resistance strain gauges, and limited ray penetration depth, etc., and achieve easy installation, no electromagnetic interference, and low cost Effect
CN1529133AInactive Publication Date: 2004-09-15WUHAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
WUHAN UNIV OF TECH
Publication Date
2004-09-15
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention is a kind of ultrasonic deformeter, which is mainly made up of emission piezo-electric, sound insulating material, metal shell, transmitting end power outgoing line, receiving end power outgoing line. It has merits of high accuracy, low cost, no electromagnetism interference, no loose, adjustable strain absolute magnitude, small size. It especially is suitable for long time strain measurement and the rheopectic measurement of construction structure safe monitoring, hill arpon.
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Description

technical field

[0001] The invention relates to an instrument for stress and strain measurement of materials and structures. Background technique

[0002] Large-scale engineering structures and infrastructure, such as bridges, super high-rise buildings, large-span space structures, large dams, nuclear power plants, offshore oil production platforms, and pipeline systems for oil, water, and gas supply, all have a service life of several decades , even hundreds of years. During its service, due to adverse factors such as environmental load, fatigue effect, corrosion peeling and material aging, the structure will inevitably produce damage accumulation, which will reduce the resistance and even lead to sudden accidents. If the damage of the structure cannot be timely and correctly evaluated, it is impossible to understand the health of the structure and make correct decisions; once an accident occurs, it will bring huge losses. In recent years, people pay...

Claims

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