JP2013529790A - 温度非依存性圧力センサ及び関連する方法 - Google Patents
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- G—PHYSICS
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- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0098—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means using semiconductor body comprising at least one PN junction as detecting element
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
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Abstract
【選択図】 図2
Description
RFID圧力センサの複素インピーダンスの測定は、LabVIEWを用いたコンピュータ制御の下でネットワークアナライザ(カリフォルニア州サンタクララのAgilent Technologies社のModel E5062A)を用いて遂行した。周波数を対象の範囲(一般に約10MHzの走査範囲で中央が約13MHz)にわたって走査してRFID圧力センサからの複素インピーダンス応答を収集するために、ネットワークアナライザを使用した。収集された複素インピーダンスデータは、Excel(ワシントン州シアトル市のMicroSoft社)又はKaleidaGraph(ペンシルバニア州レディング市のSynergy Software)及びMatlab(マサチューセッツ州ネーティックのThe Mathworks社)で動作するPLS_Toolbox(ワシントン州マンソンのEigenvector Research社)を使用して解析した。
センサに、約10℃、33℃及び57℃の温度で、4つの別々の圧力(0psi、7psi、16psi及び24psi)を印加する、類似の実験を遂行した。図6Aは、主成分分析(PCA)を用いた、センサの多変数の応答を示しており、センサには、10℃、33℃及び57℃の3つの温度で、0psi、7psi、16psi及び24psiなど4つの別々の圧力を印加した。第1の2つの主成分のPCAグラフは、流体の圧力及び温度の同時の変化に関連したものである。図6Bは、これら2つの主成分を入力として用いて、実際の圧力対予測された圧力を測定することにより、生成されたセンサ応答パターンのグラフを示し、図6Cは、温度非依存性モデルに関して、センサを用いて実際の圧力対残留圧力を測定することによって生成された誤差分布を示す。結果として、この圧力センサは、同センサの別々の温度で圧力を定量化することができていた。
Claims (24)
- 共振回路式温度非依存性圧力センサであって、
共振センサ回路と、
前記共振センサ回路上に配置された圧力感応素子と、
前記センサ回路によって生成された電磁界を少なくとも部分的に変調するために、前記圧力感応素子に動作可能に結合された電磁界変調器と
を備えるセンサ。 - 前記共振センサ回路がインダクタ−キャパシタ−抵抗回路である、請求項1記載のセンサ。
- 前記共振センサ回路が無線周波数識別回路を備える、請求項1記載のセンサ。
- 前記無線周波数識別回路が無線周波数識別タグを備える、請求項3記載のセンサ。
- 前記電磁界変調器が電磁界を吸収するように構成される、請求項1記載のセンサ。
- 前記電磁界変調器が電磁界を反射するように構成される、請求項1記載のセンサ。
- 前記電磁界変調器上に配置された保護層をさらに備える、請求項1記載のセンサ。
- 前記保護層が、ポリマー又はシリコーンを含む可撓性誘電材料を含んでいる、請求項7記載のセンサ。
- 前記圧力感応素子が、可撓性メンブラン、ダイアフラム、機械的ばね又はそれらの組合せを備える、請求項1記載のセンサ。
- 前記圧力感応素子の構造が、球形、ドーム形、立方体、フラットシート又はそれらの組合せから選択される、請求項1記載のセンサ。
- 前記圧力感応素子の材料が、金属、ポリマー、発泡体、誘電材料又はそれらの組合せから選択される、請求項1記載のセンサ。
- 前記圧力感応素子が、導電材料で含浸されている、請求項1記載のセンサ。
- 前記導電材料が、カーボンブラック粒子、金属ナノ粒子、金属微粒子、カーボンナノチューブ、グラフェンシート又はそれらの組合せを含んでいる、請求項12記載のセンサ。
- 前記電磁界変調器が導電性膜を備える、請求項1記載のセンサ。
- 前記電磁界変調器が1つ以上の層を備える、請求項1記載のセンサ。
- 前記電磁界変調器が複数の層のスタックを備えており、前記複数の層の2つ以上が別々の材料を含む、請求項15記載のセンサ。
- 約100kHz〜20GHzの範囲内の周波数を有する電磁スペクトルで動作することができる、請求項1記載のセンサ。
- バイオプロセス素子の中へ組み込まれる、請求項1記載のセンサ。
- 共振回路式温度非依存性圧力センサシステムであって、
共振センサ回路と、
前記共振センサ回路上に配置された圧力感応素子と、
センサ応答パターンを生成するために、前記センサ回路によって生成された電磁界を少なくとも部分的に変調するように、前記圧力感応素子に動作可能に結合された電磁界変調器と、
前記センサ応答パターンに少なくとも部分的に基づく前記センサ応答パターンの多変量解析を生成するプロセッサとを備える温度非依存性圧力センサシステム。 - 前記共振センサ回路が、無線周波数識別回路を備える、請求項19記載のセンサシステム。
- 前記プロセッサが、前記センサ応答パターンを無線で受け取る、請求項19記載のセンサシステム。
- 供試体の温度非依存性圧力変化を測定する方法であって、
共振センサ回路、圧力感応素子及び電磁界変調器を備えるセンサを使用してインピーダンスデータを収集して、
少なくとも2つが、前記収集されたインピーダンスデータに基づくものである複数の共振パラメータに対して多変量解析を適用し、
少なくとも部分的に前記多変量解析に基づいて、いかなる温度変化とも無関係である何らかの圧力変化を定量化することを含んでいる方法。 - 前記多変量解析が、1つ以上のセンサ応答パターンを識別することを含む、請求項22記載の方法。
- 前記共振パラメータのうち少なくとも1つが測定され、前記共振パラメータのうち少なくとも1つが計算される、請求項22記載の方法。
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US12/824,436 | 2010-06-28 | ||
US12/824,436 US20110320142A1 (en) | 2010-06-28 | 2010-06-28 | Temperature independent pressure sensor and associated methods thereof |
PCT/SE2011/050748 WO2012002877A1 (en) | 2010-06-28 | 2011-06-16 | Temperature independent pressure sensor and associated methods thereof |
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JP2013529790A true JP2013529790A (ja) | 2013-07-22 |
JP5826263B2 JP5826263B2 (ja) | 2015-12-02 |
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US (1) | US20110320142A1 (ja) |
EP (1) | EP2585804A4 (ja) |
JP (1) | JP5826263B2 (ja) |
CN (1) | CN102959378B (ja) |
WO (1) | WO2012002877A1 (ja) |
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CN102959378B (zh) | 2014-10-22 |
US20110320142A1 (en) | 2011-12-29 |
EP2585804A1 (en) | 2013-05-01 |
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WO2012002877A1 (en) | 2012-01-05 |
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