Young's modulus measuring instrument based on transient excitation

The invention discloses a Young's modulus measuring instrument based on transient excitation. The Young's modulus measuring instrument is composed of a sample fixing and stress wave excitation device and a data acquisition and processing system, and comprises a tripod, a support rod, alumi...

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Bibliographic Details
Main Authors XIONG ZHONGLONG, CHENG YONGJIN, TANG HUIMING, CAO XIAOFENG, MA CHONG
Format Patent
LanguageChinese
English
Published 25.08.2017
Subjects
ADVERTISING
APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE
CRYPTOGRAPHY
DIAGRAMS
DISPLAY
EDUCATION
EDUCATIONAL OR DEMONSTRATION APPLIANCES
GLOBES
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
PLANETARIA
SEALS
TESTING
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Summary:The invention discloses a Young's modulus measuring instrument based on transient excitation. The Young's modulus measuring instrument is composed of a sample fixing and stress wave excitation device and a data acquisition and processing system, and comprises a tripod, a support rod, aluminum fixing rings, a solid sample column, resonant extension frames, velocity sensors, a small nylon round-head hammer, vibration signal transmission lines and a data acquisition and processing system case. The principle of the Young's modulus measuring instrument is that the hammer is adopted to strike the sample column to produce transient broadband vibration signals, multi-mode standing waves are formed in a sample, the velocity sensors installed on different positions of the sample are adopted to measure the vibration signals, and through spectral analysis and vibration mode recognition, sample vibration frequency, sound velocity in solids and Young's modulus can be obtained; compared with an existing steady-state ultraso
Bibliography:Application Number: CN201710285836