JP6484538B2 - 力測定方法、及び力測定装置 - Google Patents
力測定方法、及び力測定装置 Download PDFInfo
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- JP6484538B2 JP6484538B2 JP2015201253A JP2015201253A JP6484538B2 JP 6484538 B2 JP6484538 B2 JP 6484538B2 JP 2015201253 A JP2015201253 A JP 2015201253A JP 2015201253 A JP2015201253 A JP 2015201253A JP 6484538 B2 JP6484538 B2 JP 6484538B2
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Description
Fy=Fcos(dθ)=F・dL/R …(2)
F:光渦で与えた駆動力
E:ヤング率
ν:ポアソン比(縦ひずみと横ひずみの比)
R:ビーズの半径
σ:ビーズが細胞に沈んだ距離
Claims (8)
- 測定対象物に作用する力に関わる情報の測定を行う力測定方法であって、
軌道角運動量を有する光である光渦の周方向における少なくとも一部の領域を駆動対象物に集光照射する集光照射工程と、
前記光渦によって前記駆動対象物に付与される駆動力の方向と、前記測定対象物に作用する前記力の方向を位置合わせする位置合わせ工程と、
前記駆動力と前記光渦の光強度との関係を示す情報を取得する情報取得工程と、
前記光渦を集光照射された前記駆動対象物の動作と、前記情報取得工程で取得された前記情報とに基づいて、前記測定対象物に作用する前記力に関わる情報を測定する測定工程と、を備える力測定方法。 - 前記駆動対象物と前記測定対象物とが同一物である、請求項1に記載の力測定方法。
- 前記測定対象物は、所定の方向へ進行するものであり、
前記測定工程では、前記測定対象物に作用する前記力として、前記測定対象物の進行力を測定する、請求項1又は2に記載の力測定方法。 - 前記測定工程では、前記測定対象物が停止する時における前記駆動力を前記進行力として測定する、請求項3に記載の力測定方法。
- 前記測定対象物は、結合部材と結合されるものであり、
前記測定工程では、前記測定対象物に作用する前記力として、前記結合部材との結合力を測定する、請求項1又は2に記載の力測定方法。 - 前記測定工程では、前記測定対象物が前記結合部材から離れる時における前記駆動力を前記結合力として測定する、請求項5に記載の力測定方法。
- 前記光渦は、ラゲール・ガウシアンビームである、請求項1〜6の何れか一項に記載の力測定方法。
- 測定対象物に作用する力に関わる情報の測定を行う力測定装置であって、
軌道角運動量を有する光である光渦の周方向における少なくとも一部の領域を駆動対象物に集光照射する集光照射部と、
前記光渦によって前記駆動対象物に付与される駆動力の方向と、前記測定対象物に作用する前記力の方向を位置合わせする位置合わせ部と、
前記駆動力と、前記光渦の光強度との関係を示す情報を取得する情報取得部と、
前記光渦を集光照射された前記駆動対象物の動作と、前記情報取得部で取得された前記情報とに基づいて、前記測定対象物に作用する前記力に関わる情報を測定する測定部と、を備える力測定装置。
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