发明名称 |
Method of and apparatus for the measurement of at least one mechanical property of an elastic material |
摘要 |
Young's modulus and/or the internal damping factor of an elastic material is obtained by subjecting an area of the material to a sustained vibration. The presence of the material being tested changes the resonance of a mechanical resonator and determination of the changed resonance peak enables the required elastic characteristics to be obtained. The sample may be subjected to varying tension during testing and can conveniently be vibrated by signals obtained from a variable frequency generator although, preferably, an electronic circuit for vibrating the resonator has a feed-back loop to operate as an electro-mechanical auto-oscillator. |
申请公布号 |
US4297884(A) |
申请公布日期 |
1981.11.03 |
申请号 |
US19790065443 |
申请日期 |
1979.08.10 |
申请人 |
L'OREAL |
发明人 |
LEVEQUE, JEAN-LUC;RASSENEUR, LAURENT;DE RIGAL, JEAN P.;GRAS, GILBERT |
分类号 |
A61B5/103;A61B5/11;G01N3/00;G01N3/38;(IPC1-7):G01N3/38;G01N33/48 |
主分类号 |
A61B5/103 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|