JP7411329B2 - 超音波信号をテスト材料に放射しテスト材料から超音波信号を受信するための装置、システム、および方法 - Google Patents
超音波信号をテスト材料に放射しテスト材料から超音波信号を受信するための装置、システム、および方法 Download PDFInfo
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Description
変換器は、複数の可変の周波数で使用するために選択されてもよい。実行制度の例は、異なるビーム形成手法を含み得るものの、それに限定されない。実行制度の一例は、SAFT(Synthetic Aperture Focusing Technique:開口合成法)であってもよい。
Claims (25)
- 超音波信号をテスト材料(15)に放射し前記テスト材料(15)から超音波信号を受信するための装置であって、前記装置は2つ以上のホイールアセンブリ(1)を備え、
各ホイールアセンブリ(1)はさらに、部分または完全内輪(52,21)の中に一部が配置されたもしくは完全に埋め込まれた、または前記部分または完全内輪(52,21)に装着された、1つ以上の変換器(20)を含み、前記ホイールアセンブリはさらに、軌道外輪(23)を含み、
前記部分または完全内輪(52,21)は、回転しない態様で心棒(22)に接続され、
前記1つ以上の変換器(20)は、固定的に前記テスト材料(15)の方向に向いており、
前記軌道外輪(23)の内向き面(26)および/または前記部分または完全内輪(52,21)の外向き面の間の界面は、前記軌道外輪(23)の音響インピーダンスと同一オーダの音響インピーダンスを有する低摩擦材料を含み、前記低摩擦材料は、低摩擦流体の適用されたフィルムまたはコーティング層である、または、前記低摩擦材料は、前記軌道外輪(23)および/または前記部分または完全内輪(52,21)に埋め込まれている、装置。 - 前記変換器は、ビームフォーカスまたはビームデフォーカスのより高い適合性を提供するように形成され、前記変換器の形状は、凹状、凸状、円形、または正方形のうちの1つ以上である、請求項1に記載の装置。
- 前記部分または完全内輪(52,21)は、円筒形、球形、または円錐形のうちの1つの外向き形状を有することにより、音響信号に対するレンズ機能を提供する、請求項1または2に記載の装置。
- 前記2つ以上のホイールアセンブリ(1)は1つ以上の心棒(22)上に配置されている、請求項1に記載の装置。
- 前記低摩擦材料は、前記軌道外輪(23)の内向き面(26)および/または前記部分または完全内輪(52,21)の外向き面の中に埋め込まれている、請求項1に記載の装置。
- 前記低摩擦材料は、いずれかの種類のポリマーまたはポリテトラフルオロエチレン(PTFE)、黒鉛、六方晶系窒化ホウ素、二硫化モリブデン、二硫化タングステン、金属合金、PVDF、または高水和ブラシポリマーのうちの1つである、請求項1に記載の装置。
- 前記2つ以上のホイールアセンブリ(1)は各々、個々のサスペンションを各ホイールアセンブリ(1)に提供するように配置されたサスペンション装置(51)を含む、請求項1に記載の装置。
- 前記サスペンション装置(51)は、前記心棒(22)と前記軌道外輪(23)との間に配置され、よって、前記軌道外輪(23)および前記部分または完全内輪(52,21)は、前記心棒(22)の位置から独立して変位することができる、請求項7に記載の装置。
- 前記軌道外輪および/または前記部分または完全内輪(52,21)は、前記テスト材料の表面の凹凸に適合させた弾性係数を有し、よって、より多くのホイールアセンブリ(1)が同一の前記心棒(22)上に配置されている場合に1つのホイールアセンブリが凹凸に遭遇したとき、前記凹凸の上を転がるホイールのみが、前記凹凸の影響を受け前記凹凸によって変位させられる、請求項1に記載の装置。
- 前記軌道外輪(23)は、前記テスト材料の音響インピーダンスと同一オーダの音響インピーダンスを有する材料で構成されている、請求項1に記載の装置。
- 前記変換器へのおよび前記変換器からの信号を制御するためのコントローラと、
制御信号を前記変換器との間で伝達するための通信手段とをさらに備え、前記1つ以上の変換器(20)は、電源に電気的に接続される、請求項1に記載の装置。 - 前記2つ以上のホイールアセンブリは、回転する前記軌道外輪(23)の片面または両面において、近隣のホイールアセンブリ(1)またはフレーム(71)に接続するための結合手段(31,67)を有し、
前記結合手段(31,67)は、電力および/または信号を、前記ホイールアセンブリ間で、または、前記ホイールアセンブリとフレームとの間で伝送するためのコネクタをさらに含む、請求項11に記載の装置。 - 前記心棒(22)の外端のうちの一方または双方は、前記装置をフレーム(71,120)に装着するための装着手段(72)を有する、請求項1に記載の装置。
- 前記装置は、制御データおよび受信信号データを無線送信するための手段を含む、請求項1に記載の装置。
- 個々の変換器(20)は各々、放射変換器、または受信変換器、または放射兼受信変換器として機能する、請求項1に記載の装置。
- 超音波信号を放射しテスト材料(15)から反射した超音波信号を受信するための装置であって、前記装置は2つ以上のホイールモジュール(100)を備え、各ホイールモジュール(100)は請求項1~15のうちいずれか1項に記載の1つ以上のホイールアセンブリ(1)を含み、前記ホイールモジュール(100)はフレーム(71,120)に装着されている、装置。
- 超音波信号を放射し超音波信号を受信するためのシステムであって、前記システムは、
請求項1に記載の装置を1つまたは複数備え、前記システムはさらに、
前記1つまたは複数のホイールアセンブリ(1)が搭載されたキャリッジ(120,200)と、
テスト材料(15)の表面上で径路(211)に沿って前記キャリッジを操縦するための制御機構と、
前記キャリッジ、前記変換器、ならびにデータの格納および伝達を制御するための制御ロジック(204)とを備える、システム。 - 前記システムは絶対位置を提供するためのナビゲーション手段(202)、および/または相対位置を提供するための追跡手段をさらに備える、請求項17に記載のシステム。
- 前記システムは表示手段(150,201)をさらに備える、請求項17に記載のシステム。
- 前記キャリッジは、遠隔操作車両ROVである、請求項17に記載のシステム。
- 前記キャリッジを操縦するための前記制御機構は、手で案内するためのハンドル(121,205)、または、前記キャリッジを移動させるための駆動手段に接続された遠隔制御モータである、請求項17に記載のシステム。
- 前記システムは、前記受信した超音波信号のデータを受け前記データを処理するためのコンピュータ手段をさらに備える、請求項17に記載のシステム。
- テスト材料(15)の解析を可能にするために超音波信号を放射し受信する方法であって、前記方法は、
請求項17に記載のシステムを1つまたは複数提供するステップと、
1つ以上の変換器(20)から超音波信号を放射するステップと、
1つ以上の変換器(20)を用いて前記放射した超音波信号の反射を前記テスト材料(15)から受信するステップと、
前記受信した超音波信号を格納し、コンピュータ手段に転送し、前記受信した超音波信号を解析するステップとを含む、方法。 - 前記方法は、
前記キャリッジ(120,200)を予め定められた径路(211)に沿って移動させるステップと、
予め定められた放射パターンに従って超音波信号を個々の変換器(20)から放射するステップと、
前記テスト材料(15)から反射した前記超音波信号を、放射された個々の超音波信号を受信して、テスト材料の一部分の解析結果を、前記テスト材料の同じ一部分の前回の解析と比較し、前記テスト材料における変化を特定する変換器として構成された1つまたは複数の変換器で受信するステップとを含む、請求項23に記載の方法。 - 前記方法は、テスト材料の一部分の解析結果を、前記テスト材料の同じ一部分の前回の解析と比較し、前記テスト材料における変化を特定することをさらに含む、請求項23に記載の方法。
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