Measuring and testing – Vibration – Resonance – frequency – or amplitude study
Patent
1979-08-10
1981-11-03
Gill, James J.
Measuring and testing
Vibration
Resonance, frequency, or amplitude study
73789, 128774, G01N 338, G01N 3348
Patent
active
042978840
ABSTRACT:
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.
REFERENCES:
patent: 2960862 (1960-11-01), Spurr et al.
patent: 3313148 (1967-04-01), Dautreppe et al.
patent: 4034602 (1977-07-01), Woo et al.
patent: 4107775 (1978-08-01), Ott
patent: 4170141 (1979-10-01), Woo
"The Review of Scientific Instruments", vol. 43, No. 12, Dec. 1972, pp. 1786-1788.
Med. & Biol. Engng., vol. 8, pp. 389-393, Jul. 1970.
"23rd Annual Conference on Engineering in Medicine & Biology", Transducer for Studies of Active Muscles, by Kronick et al., Nov. 1970.
De Rigal Jean P.
Gras Gilbert
Leveque Jean-Luc
Rasseneur Laurent
"L'Oreal"
Gill James J.
LandOfFree
Method of and apparatus for the measurement of at least one mech does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of and apparatus for the measurement of at least one mech, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of and apparatus for the measurement of at least one mech will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1058880