Patent ID: 7616009
Filing Date: 2009-11-10
Classification: G01B,G01N

Abstract:
1. A method for measuring an object to be measured by means of microwave radiation, comprising producing oscillation energy for an oscillator by means of an active feedback coupled unit, said method further comprising: generating resonance to at least one oscillator, each oscillator comprising at least one open resonator with a mirror, each resonator being coupled to at least one active unit, by using the object to be measured to reflect the microwave radiation directed from the mirror to the object back to the mirror of the resonator, whereby the object to be measured causes a resonance frequency between the mirror and the object dependent on the location of a surface of the object to be measured; and determining at least one characteristic of the object to be measured on the basis of the oscillator resonance frequency by using a measurement part without requiring sweeping or scanning microwave radiation.