Impulse Excitation Technique
A small mechanical impulse causes a solid sample to vibrate. The vibration depends on elastic properties, density, geometry and inner structures (lattice or fissures). Some of these properties may be quantified others detected.
Read more about this topic: Measuring Principle
Famous quotes containing the words impulse and/or technique:
“Experience was to be taken as showing that one might get a five-pound note as one got a light for a cigarette; but one had to check the friendly impulse to ask for it in the same way.”
—Henry James (1843–1916)
“The mere mechanical technique of acting can be taught, but the spirit that is to give life to lifeless forms must be born in a man. No dramatic college can teach its pupils to think or to feel. It is Nature who makes our artists for us, though it may be Art who taught them their right mode of expression.”
—Oscar Wilde (1854–1900)