Patent · US Active

Resonator length measurement

US8134714B2 · kind B2 · utility

0Cited by

11References

15Claims

0Family size

Assignee

Acreo AB and System 3R International AB · SE

Inventors

Anders G. Djupsjobacka · Solna, SE
Hakan Dahlquist · Hässelby, SE

Key dates

Filing date	Oct 9, 2009
Grant date	Mar 13, 2012
Priority date	—
Expiry date	Oct 9, 2029

Classification

Technology area (CPC G)Physics
CPC primaryG01B9/0209
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention provides a method and system for measuring the length of a reflective resonator, by analyzing an electromagnetic spectrum emitted therefrom. The emitted spectrum is used for estimating a first cavity length. This estimation is thereafter improved, by first computing at least one interference number for the spectrum, adjust this value to e.g. an integer or half-integer depending on the configuration of the resonator, and thereafter re-calculating the length of the resonator using the adjusted value of the interference number. The above is an efficient way of improving the accuracy in the determination of a physical property of a resonator.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.