Abstract: A device for measuring torque applied through a rotating member. A first torsion reference member is fixedly coupled to the rotating member at a first axial position and a second torsion reference member is fixedly coupled to the rotating member at a second axial position. A first detector detects the passage of the first torsion reference member past the first detector upon each full rotation of the rotating member and to generate a first signal upon each passage of the first torsion reference member. A second detector detects the passage of the second torsion reference member past the second detector upon each full rotation of the rotating member and to generate a second signal upon each passage of the second torsion reference member. A controller calculates a phase difference between the first signal and the second signal relative during rotation of the rotating member under a torsional load.

Abstract: A method, and a system employing the method, for determining a position of a rotational part in a reciprocating machine. The system includes a quadrature encoder and an interrupter coupled to the rotational element. As the interrupter rotates with the wrist pin, the quadrature encoder generates some binary signals based on the rotation of the wrist pin. A digital-to-analog converter then converts the binary signals into a single analog signal. The system then wirelessly transmits the single analog signal for processing by other remote components.

Abstract: A device for measuring torque applied through a rotating member. A first torsion reference member is fixedly coupled to the rotating member at a first axial position and a second torsion reference member is fixedly coupled to the rotating member at a second axial position. A first detector detects the passage of the first torsion reference member past the first detector upon each full rotation of the rotating member and to generate a first signal upon each passage of the first torsion reference member. A second detector detects the passage of the second torsion reference member past the second detector upon each full rotation of the rotating member and to generate a second signal upon each passage of the second torsion reference member. A controller calculates a phase difference between the first signal and the second signal relative during rotation of the rotating member under a torsional load.

Abstract: A method, and a system employing the method, for determining a position of a rotational part in a reciprocating machine. The system includes a quadrature encoder and an interrupter coupled to the rotational element. As the interrupter rotates with the wrist pin, the quadrature encoder generates some binary signals based on the rotation of the wrist pin. A digital-to-analog converter then converts the binary signals into a single analog signal. The system then wirelessly transmits the single analog signal for processing by other remote components.