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Title:
PORTABLE MICROWAVE MEASUREMENT DEVICE
Document Type and Number:
Japanese Patent JP2013174566
Kind Code:
A
Abstract:

To provide a portable microwave measurement device which receives thermal noise in a microwave band radiated from a measurement target and measures the signal level thereof, and which offers improved measurement-based object detection accuracy obtained by increasing the amount of thermal noise from the measurement target entering a receiver element.

A portable microwave measurement device includes a millimeter wave sensor 12 and a millimeter wave lens 14 for directing thermal noise in a millimeter waveband radiated from a measurement target to the millimeter wave sensor 12, which are both located in a cylindrical case 10, and detects an object hidden in the measurement target by measuring the reception level of the thermal noise received by the millimeter wave sensor 12 using a control circuit located behind the millimeter wave sensor 12. Provided around the millimeter wave lens 14 are a metallic plate 16, a radiowave absorption member 18, and a temperature control section 22 which generates thermal noise from the radiowave absorption member 18 by heating the metallic plate 16. Thus, the thermal noise from the radiowave absorption member 18 is radiated toward the measurement target and the object is accurately detected using the reflection wave thereof.


Inventors:
TAKEDA MASAMUNE
ARAKAWA TAKASHI
TAKAHASHI JUNICHI
TOCHIKA DAISUKE
OKAMOTO YOSHIYUKI
HIRAI HARUYUKI
NIIKURA HIROTAKA
NAKADA ATSUSHI
SATO HIROYASU
SAWAYA KUNIO
MIZUNO KOJI
Application Number:
JP2012040524A
Publication Date:
September 05, 2013
Filing Date:
February 27, 2012
Export Citation:
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Assignee:
MASPRO DENKO KK
CHUO ELECTRONICS
UNIV TOHOKU
International Classes:
G01S3/20; G01V3/12; G01S7/03; G01S13/89
Domestic Patent References:
JP2007502415A2007-02-08
JPS6444808A1989-02-17
JPS6249208A1987-03-03
JP2010008272A2010-01-14
JP2009036731A2009-02-19
JP2008241352A2008-10-09
JP2008145289A2008-06-26
JP2005127868A2005-05-19
JPH1183996A1999-03-26
JPH0862324A1996-03-08
JPH03120487A1991-05-22
JPS63124670U1988-08-15
Foreign References:
US20090195435A12009-08-06
US4521861A1985-06-04
US20040178916A12004-09-16
Other References:
澤谷邦男、外２名: "“ミリ波パッシブイメージング技術のセキュリティ応用”", 計測技術, vol. 38, no. 12, JPN6015050401, 5 November 2010 (2010-11-05), pages 13 - 16, ISSN: 0003219238
栗山弘平、外２名: "“冷却管とパラボラ反射鏡によるミリ波パッシブイメージングの物体検知特性の改善”", 電子情報通信学会技術研究報告, vol. 111, no. 429, JPN6015050403, 2 February 2012 (2012-02-02), pages 123 - 128, ISSN: 0003219239
Attorney, Agent or Firm:
Nagoya International Patent Service Corporation



 
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