a technique to increase the angular resolution of telescopes that are impaired by atmospheric turbulence, in which the information from a number of exposures of very short duration is combined
speckle interferometry in American English
noun
Astronomy
a photographic technique for clarifying the telescopic images of a star by taking short exposures of the electronic images of the star's speckle pattern and extrapolating properties of the starlight to create a more accurate composite image
Word origin
[1965–70; interfere + -o- + -metry]This word is first recorded in the period 1965–70. Other words that entered Englishat around the same time include: Finlandization, genetic engineering, hired gun, red-eye, stun gun-o- is the typical ending of the first element of compounds of Greek origin (as -i- is, in compounds of Latin origin), used regularly in forming new compounds with elementsof Greek origin and often used in English as a connective irrespective of etymology(Franco-Italian; geography; seriocomic; speedometer); -metry is a combining form with the meaning “the process of measuring” that specified bythe initial element. Other words that use the affix -metry include: allometry, archaeometry, coulometry, psychometry, trigonometry
Examples of 'speckle interferometry' in a sentence
speckle interferometry
Different arrangements for double-pulsed holographic and speckle interferometry for vibration analysis will be described.
H.J. Tiziani, G. Pedrini 1996, 'Digital Double-Pulse Holographic Interferometry for Vibration Analysis', Shock and Vibrationhttp://dx.doi.org/10.3233/SAV-1996-3205. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Size and shape of micro crack zone were measured with electronic laser speckle interferometry.
Jörn Rathke, Johannes Konnerth, Ulrich Müller, Gerhard Sinn 2012, 'Strain Measurements within Fibre Boards. Part II: Strain Concentrations at the CrackTip of MDF Specimens Tested by the Wedge Splitting Method', Materialshttp://www.mdpi.com/1996-1944/5/8/1495. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)