34.
    发明专利
    未知

    公开(公告)号:FR2428830A1

    公开(公告)日:1980-01-11

    申请号:FR7911216

    申请日:1979-04-26

    Applicant: IBM

    Abstract: A pressure sensing device having applicability as a simple pressure sensor and which is particularly adapted for use as a pen in a Signature Verification System, said device including a unique mounting structure for the pressure sensing stylus by flexible support means mounted on a substantially rigid base. The support means has a pressure sensing element mounted thereon. The flexible support means comprises two spaced members so disposed that their deflections and the output of the pressure sensing element are substantially independent of the angle of pressure on the stylus. In the special purpose embodiment useful for Signature Verification the stylus comprises a pen and the device further includes two orthogonally disposed accelerometers for sensing accelerations of said pen during the writing of a signature.

    PROGRAMMABLE AIR PRESSURE COUNTERBALANCE SYSTEM FOR A MANIPULATOR

    公开(公告)号:CA1120142A

    公开(公告)日:1982-03-16

    申请号:CA343749

    申请日:1980-01-16

    Applicant: IBM

    Inventor: PANISSIDI HUGO A

    Abstract: An air pressure counterbalance system is provided for an X Y Z orthogonal manipulator wherein the effect of gravity on a manipulator arm joint is counterbalanced both while hydraulic pressure is supplied to the hydraulic motors and also when the motive power is suspended. The air pressure counterbalance force is produced by a piston operating in an air cylinder in the direction of the gravity axis as the manipulator hand is raised or lowered. A selected constant air pressure is supplied to the counterbalance cylinder through an air pressure regulating system. In a preferred embodiment, a program-controlled counterbalance system is provided wherein the weights of various tools to be grasped by the manipulator fingers during a program are stored in CPU memory. The manipulator program selects the appropriate counterbalancing force to compensate for the predetermined tool weight and adjusts an air pressure regulator accordingly.

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