SE9601918D0 - Ways to decode and linearize the output of an interferometer - Google Patents

Ways to decode and linearize the output of an interferometer

Info

Publication number
SE9601918D0
SE9601918D0 SE9601918A SE9601918A SE9601918D0 SE 9601918 D0 SE9601918 D0 SE 9601918D0 SE 9601918 A SE9601918 A SE 9601918A SE 9601918 A SE9601918 A SE 9601918A SE 9601918 D0 SE9601918 D0 SE 9601918D0
Authority
SE
Sweden
Prior art keywords
branch
output signal
determined
interferometer
weighted
Prior art date
Application number
SE9601918A
Other languages
Swedish (sv)
Other versions
SE9601918L (en
SE506594C2 (en
Inventor
Fredrik Kullander
Claes Laurent
Stan Zyra
Original Assignee
Foersvarets Forskningsanstalt
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Foersvarets Forskningsanstalt filed Critical Foersvarets Forskningsanstalt
Priority to SE9601918A priority Critical patent/SE506594C2/en
Publication of SE9601918D0 publication Critical patent/SE9601918D0/en
Publication of SE9601918L publication Critical patent/SE9601918L/en
Publication of SE506594C2 publication Critical patent/SE506594C2/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B9/00—Measuring instruments characterised by the use of optical techniques
    • G01B9/02—Interferometers
    • G01B9/02001—Interferometers characterised by controlling or generating intrinsic radiation properties
    • G01B9/0201—Interferometers characterised by controlling or generating intrinsic radiation properties using temporal phase variation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Instruments For Measurement Of Length By Optical Means (AREA)

Abstract

In a first branch, via the first input, the output signal(s) is/are measured with, in comparison with what occurs in the second branch, relatively low resolution, and in a relatively low frequency range. A formation Psi rough is determined which is the principle forming of the interferometer phase. Also determined is the respective output signal main derivative with regard to the interferometer phase. In a second branch, via the second input, the output signal(s) is/are weighted as a function of its/their respective derivative, determined in the first branch, and, in the event that several output signals are concerned, are added. The weighted output signal or the sum of the weighted output signals Psi fine, with high resolution form the part of the interferometer phase which is not measured in the first branch.
SE9601918A 1996-05-21 1996-05-21 Decoding and linearising output signals from interferometer SE506594C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9601918A SE506594C2 (en) 1996-05-21 1996-05-21 Decoding and linearising output signals from interferometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9601918A SE506594C2 (en) 1996-05-21 1996-05-21 Decoding and linearising output signals from interferometer

Publications (3)

Publication Number Publication Date
SE9601918D0 true SE9601918D0 (en) 1996-05-21
SE9601918L SE9601918L (en) 1997-11-22
SE506594C2 SE506594C2 (en) 1998-01-19

Family

ID=20402630

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9601918A SE506594C2 (en) 1996-05-21 1996-05-21 Decoding and linearising output signals from interferometer

Country Status (1)

Country Link
SE (1) SE506594C2 (en)

Also Published As

Publication number Publication date
SE9601918L (en) 1997-11-22
SE506594C2 (en) 1998-01-19

Similar Documents

Publication Publication Date Title
KR920700521A (en) Stereo synthesizer
TW200505138A (en) Device and method to improve noise sensitivity of switching system
MY108184A (en) Feed forward amplifier network with frequency swept pilot tone.
CA2284220A1 (en) Method for signalling a noise substitution during audio signal coding
EP0353035A3 (en) Foreign matter detector
AU4308597A (en) Radar systems
ATE245817T1 (en) PHASE NOISE DETECTOR
DE60035872D1 (en) ELIMINATION OF POLARIZATION DAMPING IN UNSATURATED OPTICAL MEASURING INTERFEROMETERS
FR2768276B1 (en) ALEA GENERATOR
DE60132941D1 (en) 3R regeneration of an optical signal
SE9601918D0 (en) Ways to decode and linearize the output of an interferometer
KR910021177A (en) Acoustic additional circuit
KR920005458A (en) Amplification circuit
ATE198382T1 (en) FREQUENCY DETECTION
SE9600540L (en) Phase detector
FI916159A0 (en) DIGITAL FREQUENCY OF ORGANIZATION FOR FREQUENCY IN FREQUENCY AND IF SIGNAL.
ES2165386T3 (en) RADIO RECEIVER WITH DIGITAL SIGNAL PROCESSING.
ES2113925T3 (en) DEVICE TO GENERATE A SINUSOIDAL OUTPUT SIGNAL.
ES2152926T3 (en) METHOD AND APPARATUS FOR A / D AND D / A CONVERSION.
KR970031383A (en) METHOD FOR MUTING A DIGITAL SIGNAL AND A DIGITAL SIGNAL RECORDING APPARATUS AND A DIGITAL SIGNAL PROCESSING APPARATUS EMPLOYING THE DIGITAL SIGNAL MUTING METHOD
DE59912320D1 (en) Circuit for generating an output signal as a function of two input signals
KR930003579A (en) Radio system with automatic tuning
DE69028129D1 (en) Circuits for generating an interpolarized signal
SE9600541D0 (en) Counting circuit
JPS54162592A (en) Signal processing circuit

Legal Events

Date Code Title Description
NUG Patent has lapsed