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The Surface Force Apparatus (SFA) is a sci … The Surface Force Apparatus (SFA) is a scientific instrument which measures the interaction force of two surfaces as they are brought together and retracted using multiple beam interferometry to monitor surface separation and directly measure contact area and observe any surface deformations occurring in the contact zone. One surface is held by a cantilevered spring, and the deflection of the spring is used to calculate the force being exerted. The technique was pioneered by David Tabor and R.H.S. Winterton in the late 1960s at Cambridge University. By the mid-1970s, J.N. Israelachvili had adapted the original design to operate in liquids, notably aqueous solutions, while at the Australian National University, and further advanced the technique to support friction and electro-chemical surface studies while at the University of California Santa Barbara.he University of California Santa Barbara.
, La machine à force de surface (SFA) est un … La machine à force de surface (SFA) est un appareil de mesure de forces de surface qui a été initialement imaginée par D. Tabor, R.H.S. Winterton, J.N. Israelachvili à l'Université de Cambridge. Cet appareil permet de mesurer les interactions (statiques et dynamiques) entre deux surfaces séparées par un liquide, un gaz ou en contact. Le SFA offre notamment la possibilité de déterminer de façon fiable et précise les conditions aux limites de l'écoulement d'un fluide. Cet article est construit autour de l'étude de l'appareil à force de surface développé par Frédéric Restagno, Jérôme Crassous et Élisabeth Charlaix au LPMCN (Laboratoire de Physique de la Matière Condensée et Nanostructures).e la Matière Condensée et Nanostructures).
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La machine à force de surface (SFA) est un … La machine à force de surface (SFA) est un appareil de mesure de forces de surface qui a été initialement imaginée par D. Tabor, R.H.S. Winterton, J.N. Israelachvili à l'Université de Cambridge. Cet appareil permet de mesurer les interactions (statiques et dynamiques) entre deux surfaces séparées par un liquide, un gaz ou en contact. Le SFA offre notamment la possibilité de déterminer de façon fiable et précise les conditions aux limites de l'écoulement d'un fluide.s aux limites de l'écoulement d'un fluide.
, The Surface Force Apparatus (SFA) is a sci … The Surface Force Apparatus (SFA) is a scientific instrument which measures the interaction force of two surfaces as they are brought together and retracted using multiple beam interferometry to monitor surface separation and directly measure contact area and observe any surface deformations occurring in the contact zone. One surface is held by a cantilevered spring, and the deflection of the spring is used to calculate the force being exerted. The technique was pioneered by David Tabor and R.H.S. Winterton in the late 1960s at Cambridge University. By the mid-1970s, J.N. Israelachvili had adapted the original design to operate in liquids, notably aqueous solutions, while at the Australian National University, and further advanced the technique to support friction and electro-chemical surfsupport friction and electro-chemical surf
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Surface forces apparatus
, Appareil à force de surface
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