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1. (WO2015045266) MEASUREMENT DEVICE

Pub. No.:    WO/2015/045266    International Application No.:    PCT/JP2014/004314
Publication Date: Fri Apr 03 01:59:59 CEST 2015 International Filing Date: Fri Aug 22 01:59:59 CEST 2014
IPC: G01N 21/27
Applicants: NATIONAL UNIVERSITY CORPORATION TOKYO UNIVERSITY OF AGRICULTURE AND TECHNOLOGY
国立大学法人東京農工大学
NATIONAL UNIVERSITY CORPORATION SAITAMA UNIVERSITY
国立大学法人埼玉大学
Inventors: KUROKAWA, Takashi
黒川 隆志
KASHIWAGI, Ken
柏木 謙
TANAKA, Yosuke
田中 洋介
SHIODA, Tatsutoshi
塩田 達俊
Title: MEASUREMENT DEVICE
Abstract:
The present invention expands the measurement band of a measurement device having a spectroscopic optical system, simplifies a control system for the measurement device, and reduces the cost of the measurement device. Provided is a measurement device for measuring the transmission characteristics or reflection characteristics of a sample to be measured, wherein: the measurement device is provided with a frequency comb light source for outputting comb light including a plurality of light modes having a constant frequency interval, a spectroscopic optical system that receives the comb light and decomposes the plurality of light modes in the comb light into individual frequencies, and a photodetector for detecting the intensity of at least one light mode from among the plurality of light modes extracted from the spectroscopic optical system; a single light mode having the intensity thereof detected by the photodetector passes through or is reflected by the sample to be measured, which is disposed between the comb light source output and the photodetector input; and the frequency interval between the comb light modes is larger than the optical frequency resolution of the spectroscopic optical system.