“analyser”的概念、定义、翻译、参考文献-科学参考

analyser

Physics

A device, used in the polarization of light, that is placed in the eyepiece of a polarimeter to observe plane-polarized light. The analyser, which may be a Nicol prism or Polaroid, can be oriented in different directions to investigate in which plane an incoming wave is polarized or if the light is plane polarized. If there is one direction from which light does not emerge from the analyser when it is rotated, the incoming wave is plane polarized. If the analyser is horizontal when extinction of light takes place, the polarization of light must have been in the vertical plane. The intensity of a beam of light transmitted through an analyser is proportional to cos²θ‎, where θ‎ is the angle between the plane of polarization and the plane of the analyser. Extinction is said to be produced by ‘crossing’ the polarizer and analyser.

Chemistry

A device, used in the polarization of light, that is placed in the eyepiece of a polarimeter to observe plane-polarized light. The analyser, which may be a Nicol prism or Polaroid, can be oriented in different directions to investigate in which plane an incoming wave is polarized or if the light is plane polarized. If there is one direction from which light does not emerge from the analyser when it is rotated, the incoming wave is plane polarized. If the analyser is horizontal when extinction of light takes place, the polarization of light must have been in the vertical plane. The intensity of a beam of light transmitted through an analyser is proportional to cos²θ‎, where θ‎ is the angle between the plane of polarization and the plane of the analyser. Extinction is said to be produced by ‘crossing’ the polarizer and analyser.

Computer

A program, such as a parser, that determines constituents in a string; the word is rarely used except in the combinations syntax analyser and lexical analyser. See also static analysis.

Geology and Earth Sciences

A piece of Polaroid in a transmitted- or reflected-light microscope which may be inserted into the light path above the mineral section. When the analyser is out of the path of light through the microscope observations are made in plane-polarized light (PPL); when the analyser is in the path of light, observations are made in crossed polarized light, or crossed polars (crossed nicols, xpols, or XPL). See nicol prism.

单词	analyser
释义	analyser Physics A device, used in the polarization of light, that is placed in the eyepiece of a polarimeter to observe plane-polarized light. The analyser, which may be a Nicol prism or Polaroid, can be oriented in different directions to investigate in which plane an incoming wave is polarized or if the light is plane polarized. If there is one direction from which light does not emerge from the analyser when it is rotated, the incoming wave is plane polarized. If the analyser is horizontal when extinction of light takes place, the polarization of light must have been in the vertical plane. The intensity of a beam of light transmitted through an analyser is proportional to cos²θ‎, where θ‎ is the angle between the plane of polarization and the plane of the analyser. Extinction is said to be produced by ‘crossing’ the polarizer and analyser. Chemistry A device, used in the polarization of light, that is placed in the eyepiece of a polarimeter to observe plane-polarized light. The analyser, which may be a Nicol prism or Polaroid, can be oriented in different directions to investigate in which plane an incoming wave is polarized or if the light is plane polarized. If there is one direction from which light does not emerge from the analyser when it is rotated, the incoming wave is plane polarized. If the analyser is horizontal when extinction of light takes place, the polarization of light must have been in the vertical plane. The intensity of a beam of light transmitted through an analyser is proportional to cos²θ‎, where θ‎ is the angle between the plane of polarization and the plane of the analyser. Extinction is said to be produced by ‘crossing’ the polarizer and analyser. Computer A program, such as a parser, that determines constituents in a string; the word is rarely used except in the combinations syntax analyser and lexical analyser. See also static analysis. Geology and Earth Sciences A piece of Polaroid in a transmitted- or reflected-light microscope which may be inserted into the light path above the mineral section. When the analyser is out of the path of light through the microscope observations are made in plane-polarized light (PPL); when the analyser is in the path of light, observations are made in crossed polarized light, or crossed polars (crossed nicols, xpols, or XPL). See nicol prism.
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