JP4378607B2 - 測定装置 - Google Patents
測定装置 Download PDFInfo
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- JP4378607B2 JP4378607B2 JP2003308153A JP2003308153A JP4378607B2 JP 4378607 B2 JP4378607 B2 JP 4378607B2 JP 2003308153 A JP2003308153 A JP 2003308153A JP 2003308153 A JP2003308153 A JP 2003308153A JP 4378607 B2 JP4378607 B2 JP 4378607B2
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
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- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
Description
Tomography)、MRI(Magnetic Resonance
Imaging)、超音波エコー法、ドップラー法(例えば特許文献1参照)、誘電分光法(例えば特許文献2参照)、NIRS(near-infrared spectroscopy)と呼ばれる近赤外線分光法(例えば非特許文献1参照)などがある。
これら図1〜図3は、電界を発生するための2つの電極EDa及びEDbを人体外部の近傍に配置し、当該各電極EDから電圧を印加して準静電界を発生させた際のシミュレーション結果である。但し、このシミュレーションでは、人体の比誘電率が一様に50であるものと仮定して取り扱った。
電界は、発生源からの距離に線形に反比例する放射電界と、発生源からの距離の2乗に反比例する誘導電磁界と、発生源からの距離の3乗に反比例する準静電界との合成電界として発生している。
内方までの間における生体反応による作用を検出する場合に、当該表面から0.01[m]
内方までの間を0.001[m]間隔で検出するための準静電界スケールを発生するための手法について説明する。
図6に示したように、人体の表面から最小の生体反応検出エリアである0.001[m]に10[MHz]でなる周波数を基準周波数として割り当て、順次0.001[m]ごとに広くなる生体反応検出エリア(即ち人体の表面からの深度)に対応する周波数を順次割り当てるようにする。このようにすれば周波数によって検出対象までの深度に準静電界の生体反応検出エリアを制御することができることとなる。
0.006[m], 0.008[m], 0.01[m])に対応する準静電界のみを示し、また図7(A)では縦軸(電界強度)を、図7(B)では縦軸(電界強度)及び横軸(距離)を対数尺度により示している。この図7からも明らかなように、準静電界の電界強度を所定の基準である例えば強度境界点に一定にすると、周波数によって検出対象までの深度に準静電界の生体反応検出エリア(距離)を正確に制御することができるようになることが分かる。
図8は、上述の準静電界発生手段及び準静電界検出手段を有する本実施の形態による測定装置1を示すものである。すなわち、この測定装置1では、複数の周波数にそれぞれ対応する複数の正弦波電圧 (以下、これを交番電圧と呼ぶ)を出力する出力源(以下、これを交番電圧出力源と呼ぶ)2と、当該交番電圧出力源2に接続され、空気に近い誘電率に選定された薄厚の絶縁シート3を介して人体表面の所定位置に配置された1対の電界発生用電極4a及び4bと、当該交番電圧出力源2の出力を制御する出力調整部5によって準静電界発生手段が構成される。
ここで、上述した出力制御部5及び測定部20からなる制御部40における測定処理は、図11に示す測定処理手順RT1に従って実行される。
以上の構成において、測定装置1は、交番電圧出力源2から所定の周波数でなる複数の正弦波電圧を周波数の小さい正弦波電圧から順次単位時間ごとに電界発生用電極4a及び4bに出力することにより、当該周波数に応じて振動する準静電界を誘導電磁界よりも強度が優位な状態として時分割で発生する。
Claims (7)
- 放射電界及び誘導電磁界に比して大きい強度の準静電界を発生する準静電界発生手段と、
上記準静電界発生手段から発生され、測定対象に印加される上記準静電界と、上記測定対象の内方における動的反応により生じる電位変化に応じた電界との相互作用結果を検出する準静電界検出手段と、
上記準静電界検出手段により検出された上記相互作用結果から上記電位変化を抽出する抽出手段と
を具えることを特徴とする測定装置。 - 上記測定対象は生体であり、
上記準静電界検出手段は、
上記生体の内方における生体反応により生じる上記電位変化に応じた上記電界との上記相互作用結果を検出する
ことを特徴とする請求項1に記載の測定装置。 - 上記準静電界発生手段は、
複数の上記周波数にそれぞれ対応する各上記距離において上記誘導電磁界に比して大きい上記強度が得られる上記準静電界を発生する
ことを特徴とする請求項1に記載の測定装置。 - 上記準静電界発生手段は、
複数の上記周波数にそれぞれ対応する各上記距離において上記誘導電磁界に比して大きい上記強度が得られる上記準静電界を、上記距離ごとに時分割で発生する
ことを特徴とする請求項1に記載の測定装置。 - 上記準静電界発生手段は、
各上記周波数にそれぞれ対応する各上記距離において発生される各上記準静電界の強度が所定の基準強度となるように、当該各周波数にそれぞれ対応する各電圧の所定の電極への出力を調整し、当該調整後の各上記電圧の合成結果を出力する出力調整手段
を具えることを特徴とする請求項3に記載の測定装置。 - 上記準静電界発生手段は、
各上記周波数にそれぞれ対応する各上記距離において発生される各上記準静電界の強度が所定の基準強度となるように、当該各周波数にそれぞれ対応する各電圧の所定の電極への出力を調整する出力調整手段
を具えることを特徴とする請求項4に記載の測定装置。 - 上記準静電界発生手段は、上記準静電界を発生するための1対の発生用電極を有し、
上記準静電界検出手段は、上記相互作用結果を検出するための1対の検出用電極を有し、
上記1対の発生用電極と上記1対の検出用電極とが単位電極として形成され、複数の上記単位電極が同一面上に形成された
ことを特徴とする請求項1に記載の測定装置。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003308153A JP4378607B2 (ja) | 2003-08-29 | 2003-08-29 | 測定装置 |
EP04771608A EP1658809A4 (en) | 2003-08-29 | 2004-08-06 | MEASURING DEVICE AND MEASURING PROCEDURE |
PCT/JP2004/011633 WO2005020811A1 (ja) | 2003-08-29 | 2004-08-06 | 測定装置及びその方法 |
KR1020067003926A KR101083897B1 (ko) | 2003-08-29 | 2004-08-06 | 측정 장치 및 그 방법 |
US10/569,953 US20070055123A1 (en) | 2003-08-29 | 2004-08-06 | Measuring apparatus and its method |
CNB2004800249485A CN100457024C (zh) | 2003-08-29 | 2004-08-06 | 测量装置 |
US14/340,296 US20150065845A1 (en) | 2003-08-29 | 2014-07-24 | Measuring apparatus and its method |
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JP2003308153A JP4378607B2 (ja) | 2003-08-29 | 2003-08-29 | 測定装置 |
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JP2005073974A JP2005073974A (ja) | 2005-03-24 |
JP4378607B2 true JP4378607B2 (ja) | 2009-12-09 |
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JP2003308153A Expired - Fee Related JP4378607B2 (ja) | 2003-08-29 | 2003-08-29 | 測定装置 |
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US (2) | US20070055123A1 (ja) |
EP (1) | EP1658809A4 (ja) |
JP (1) | JP4378607B2 (ja) |
KR (1) | KR101083897B1 (ja) |
CN (1) | CN100457024C (ja) |
WO (1) | WO2005020811A1 (ja) |
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JP4640608B2 (ja) | 2005-12-12 | 2011-03-02 | ソニー株式会社 | 検出装置及び検出方法 |
JP4210953B2 (ja) | 2006-04-14 | 2009-01-21 | ソニー株式会社 | 電界制御装置及び検出装置 |
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JP2008287436A (ja) * | 2007-05-16 | 2008-11-27 | Sony Corp | 静脈パターン管理システム、静脈パターン登録装置、静脈パターン認証装置、静脈パターン登録方法、静脈パターン認証方法、プログラムおよび静脈データ構造 |
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US7312788B2 (en) * | 2003-03-11 | 2007-12-25 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Gesture-based input device for a user interface of a computer |
WO2005065090A2 (en) * | 2003-12-30 | 2005-07-21 | The Mitre Corporation | Techniques for building-scale electrostatic tomography |
US8547248B2 (en) * | 2005-09-01 | 2013-10-01 | Proteus Digital Health, Inc. | Implantable zero-wire communications system |
JP2007134998A (ja) * | 2005-11-10 | 2007-05-31 | Sony Corp | 電子機器及びその制御方法 |
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2003
- 2003-08-29 JP JP2003308153A patent/JP4378607B2/ja not_active Expired - Fee Related
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- 2004-08-06 US US10/569,953 patent/US20070055123A1/en not_active Abandoned
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JP2005073974A (ja) | 2005-03-24 |
US20070055123A1 (en) | 2007-03-08 |
EP1658809A1 (en) | 2006-05-24 |
WO2005020811A1 (ja) | 2005-03-10 |
KR101083897B1 (ko) | 2011-11-15 |
KR20060069476A (ko) | 2006-06-21 |
EP1658809A4 (en) | 2009-08-26 |
US20150065845A1 (en) | 2015-03-05 |
CN100457024C (zh) | 2009-02-04 |
CN1845701A (zh) | 2006-10-11 |
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