New micro-displacement measurement system for large object in long distance;

A novel optical method and a nanometer laser system are introduced for micro displacement measurement.

Put forward making use of the piezoelectric element at the condition of electrify producing micro displacement principle to design piezoelectric actuator,the paper utilized the piezoelectric actuator to design the cell micro injection device which achieved its orientation and injection by the piezoelectric actuator.

On the basis of the conception, a micro displacement experiment system is developed.

Curate control for tiny displacement system of detecting apparatus based on white-light interference technique;

Detecting this tiny displacement by using optical fiber micro-displacement detector with lamp-house, the relation between temperature and displacement is found.

Choosing Y type reflection fiber optic detector, this thesis create a tiny displacement-detecting sensor that is made up of LED (Light Emitting diode), fiber optic detector, electric eye, lock-in amplifier, display and other electro circuits.

Measuring micro-displacement of metal bar using laser holographic interferometry;

According to the principle of inductance transducer,an installation of measuring micro-displacement was made.

A micro-displacement measurement instrument equipped with light-pointer is presented.

Determination of the trauma location in compressive neuropathy by inching test;