Please log in

Paper / Information search system

日本語

ENGLISH

Help

Please log in

  • Summary & Details

Molecular Gas Thermometry with Laser Spectroscopy─Non-contact Temperature Measurement using Optical Frequency Comb─

光を用いた非接触・高精度な気体温度測定─分子の運動を新たな光源「光周波数コム」ではかる─

Detailed Information

Category(J)ホットトピックス

Translation

Category(E)Hot Topics
Author(J)1) 清水 祐公子, 2) 稲場 肇, 3) 大久保 章, 4) 入松川 知也
Author(E)1) Yukiko Shimizu, 2) Hajime Inaba, 3) Sho Okubo, 4) Tomoya Irimatsugawa
Affiliation(J)1) 産業技術総合研究所, 2) 産業技術総合研究所, 3) 産業技術総合研究所, 4) 産業技術総合研究所
Abstract(J)ボルツマン定数を利用した新しい熱力学温度測定法の一つとして、デュアルコムによる気体温度の計測法を紹介する。この手法は、気体分子が特定の周波数の光を吸収する性質を利用したレーザ分光法の一種で高精度・高速・広帯域といった特徴を持つ。測定光を気体分子に照射するだけであるため、現場計測への高い適用性も期待できる。

Translation

Abstract(E)A gas temperature measurement method using dual optical frequency comb system, which is one of the new thermometry directly linked to Boltzmann’s constant(new definition of Kelvin since 2019), is introduced. This method is a type of laser spectroscopy that utilizes the resonant absorption line of gas molecules, and has features of high accuracy, high speed, and wide measurement range. In this method, since it just irradiates gas molecules with measurement light, it can be expected to be highly applicable to on-site and non-contact measurement.

About search

close

How to use the search box

You can enter up to 5 search conditions. The number of search boxes can be increased or decreased with the "+" and "-" buttons on the right.
If you enter multiple words separated by spaces in one search box, the data that "contains all" of the entered words will be searched (AND search).
Example) X (space) Y → "X and Y (including)"

How to use "AND" and "OR" pull-down

If "AND" is specified, the "contains both" data of the phrase entered in the previous and next search boxes will be searched. If you specify "OR", the data that "contains" any of the words entered in the search boxes before and after is searched.
Example) X AND Y → "X and Y (including)"  X OR Z → "X or Z (including)"
If AND and OR searches are mixed, OR search has priority.
Example) X AND Y OR Z → X AND (Y OR Z)
If AND search and multiple OR search are mixed, OR search has priority.
Example) W AND X OR Y OR Z → W AND (X OR Y OR Z)

How to use the search filters

Use the "search filters" when you want to narrow down the search results, such as when there are too many search results. If you check each item, the search results will be narrowed down to only the data that includes that item.
The number in "()" after each item is the number of data that includes that item.

Search tips

When searching by author name, enter the first and last name separated by a space, such as "Taro Jidosha".