calibrate a standard

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• Standard candle — A standard candle is an astronomical object that has a known luminosity. Standard candles are the basis for several important methods of deriving distances in extragalactic astronomy and cosmology in the cosmic distance ladder.TheoryComparing its …   Wikipedia

• calibrate — ► VERB 1) mark (a gauge or instrument) with a standard scale of readings. 2) compare the readings of (an instrument) with those of a standard. 3) adjust (experimental results) to take external factors into account or to allow comparison with… …   English terms dictionary

• standard candle — noun the basic unit of luminous intensity adopted under the Systeme International d Unites; equal to 1/60 of the luminous intensity per square centimeter of a black body radiating at the temperature of 2,046 degrees Kelvin • Syn: ↑candle,… …   Useful english dictionary

• calibrate — transitive verb ( brated; brating) Date: circa 1864 1. to ascertain the caliber of (as a thermometer tube) 2. to determine, rectify, or mark the graduations of (as a thermometer tube) 3. to standardize (as a measuring instrument) by determining… …   New Collegiate Dictionary

• calibrate — [ kalɪbreɪt] verb 1》 mark (a gauge or instrument) with a standard scale of readings. 2》 correlate the readings of (an instrument) with those of a standard. 3》 adjust (experimental results) to take external factors into account or to allow… …   English new terms dictionary

• calibrate — v.tr. 1 mark (a gauge) with a standard scale of readings. 2 correlate the readings of (an instrument) with a standard. 3 determine the calibre of (a gun). 4 determine the correct capacity or value of. Derivatives: calibration n. calibrator n.… …   Useful english dictionary

• calibrate — verb a) To check or adjust by comparison with a standard. b) To mark the scale of a measuring instrument. See Also: caliber, calibre, calib …   Wiktionary

• calibrate — 1. To graduate or standardize any measuring instrument. 2. To measure the diameter of a tubular structure. * * * cal·i·brate kal ə .brāt vt, brat·ed; brat·ing 1) to ascertain the caliber of (as a thermometer tube) 2) …   Medical dictionary

• calibrate —    To determine, by measurement or comparison with a standard, the correct value of each scale reading on a meter or other device, or the correct value for each setting of a control knob …   Forensic science glossary

• Diffraction standard — In crystallography, a diffraction standard, or calibration crystal, is a crystal used to calibrate an X ray spectrometer to an absolute X ray energy scale. Quartz or silicon crystals are typically used. There are also reports of crystals of… …   Wikipedia

• Cosmic distance ladder — * Light green boxes: Technique applicable to star forming galaxies. * Light blue boxes: Technique applicable to Population II galaxies. * Light Purple boxes: Geometric distance technique. * Light Red box: The planetary nebula luminosity function… …   Wikipedia