Title:
TIME DOMAIN SPECTROSCOPIC DEVICE AND TIME DOMAIN SPECTROSCOPIC ANALYSIS SYSTEM
Document Type and Number:
WIPO Patent Application WO/2013/145020
Kind Code:
A1
Abstract:
Disclosed are a time domain spectroscopic device and time domain spectroscopic analysis system whereby high-speed analysis can be achieved with improved SN ratio and without reducing the number of integrations. A time domain spectroscopic device comprises: a branching section that branches an input pulse beam; a variable delay element that delays the timing of one of these pulse beams branched by the branching section; an electromagnetic wave generator that converts the other aforementioned pulse beam branched by the branching section to an electromagnetic wave; a detector that detects measurement data from the pulses transmitted through a measurement subject that receives electromagnetic waves directed thereon from the electromagnetic wave generator and the pulses that are output from the variable delay element; and a comparator that compares the phase difference of the pulse beam prior to input to the electromagnetic wave generator and the pulse beam that was output from the variable delay element. The result obtained by the comparator is fed back to the variable delay element.
More Like This:
Inventors:
NAKAMURA TAKAHIRO (JP)
SHIRAMIZU NOBUHIRO (JP)
SHIRAMIZU NOBUHIRO (JP)
Application Number:
PCT/JP2012/002221
Publication Date:
October 03, 2013
Filing Date:
March 30, 2012
Export Citation:
Assignee:
HITACHI LTD (JP)
NAKAMURA TAKAHIRO (JP)
SHIRAMIZU NOBUHIRO (JP)
NAKAMURA TAKAHIRO (JP)
SHIRAMIZU NOBUHIRO (JP)
International Classes:
G01N21/35
Domestic Patent References:
| WO2006092874A1 | 2006-09-08 |
Foreign References:
| JP2009150811A | 2009-07-09 |
Other References:
MASAHIKO TANI ET AL.: "Ultratast Terahertz Wave Measurement Based on a New Asynchronous Sampling Method", IEICE TECHNICAL REPORT, 21 May 2010 (2010-05-21), pages 7 - 8
MASAHIKO TANI ET AL.: "Research and development for ultrafast terahertz time-domain spectroscopy system", ENSEKIGAI RYOIKI KAIHATSU KENKYU, July 2010 (2010-07-01), pages 99 - 106
MASAHIKO TANI ET AL.: "Research and development for ultrafast terahertz time-domain spectroscopy system", ENSEKIGAI RYOIKI KAIHATSU KENKYU, July 2010 (2010-07-01), pages 99 - 106
Attorney, Agent or Firm:
INOUE, Manabu et al. (JP)
Manabu Inoue (JP)
Manabu Inoue (JP)
Download PDF:
Previous Patent: INSULATED TRANSMISSION MEDIUM AND INSULATED TRANSMISSION APPARATUS
Next Patent: IMAGE DECODING METHOD AND IMAGE DECODING APPARATUS
Next Patent: IMAGE DECODING METHOD AND IMAGE DECODING APPARATUS