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Adaptive Control Technology

  • Overview +

    Advancing the state-of-the-art…

    Ametek Precitech is proud to introduce Adaptive Control Technology (ACT) to the machine tool industry.

    Adaptive Control technology, also known as Adaptive State Control, was developed in the 1970’s for mission-critical military applications. Its first use in the commercial sector occurred in the 1990’s in the disk drive industry. Now Ametek Precitech has deployed this enabling technology for the first time to the machine tool industry.

    Bottom-line Benefits of ACT
    • More accurate surfaces:
      • Improved form accuracy and surface finishes (even at higher processing speeds) over traditional PID controls.
      • Repetitive errors are actively cancelled and reduced to levels below the noise floor of the system.

    • Faster part cutting & Lower production costs:
      • ACT is inherently insensitive to system noise and able to maintain the same level of control accuracy over widely varying processing conditions (ex. ramping spindle RPM)
      • ACT automatically optimizes the control system for changes in weight and geometry of fixtures and work pieces.


  • What is ACT ? +

    ACT is an adaptive-learning, real-time, closed-loop servo control system available exclusively on the Ametek Precitech UPX control. ACT is superior to traditional PID control methods in use by other machine tool controllers. ACT is also a “foundation technology” that Ametek Precitech will continue to build on moving forward.

  • How does ACT work ? +

    ACT is based on the latest developments in control system theory generally referred to as “State Control”. The concept of “state” is central to understanding ACT. In machine controls the “state” of the system consists of a vector, or interrelated group, of signals. The most obvious states include position and velocity. There are additional “states” that can be considered to improve control performance such as acceleration, or a “disturbance state” (to capture the effect of disturbing forces acting on the system) and “system state models” to account for, for example, motor dynamics and structural modes within an axis.

  • Brochures +