Mechanical Rotational Sensors Absolute Rotational Motion Sensor Torque Sensor Sources Angular Velocity Source Torque Source Elements Inertia Mechanical Rotational Reference Rotational Damper Rotational Free End Rotational Friction Rotational Hard Stop Rotational Inerter Rotational Spring Mechanisms Gear Box Lever Slider-Crank Wheel and Axle Translational Sensors Force Sensor Absolute Translational Motion Sensor Sources Force Source Translational Velocity Source Elements Mass Mechanical Translational Reference Translational Damper Translational Free End Translational Friction Translational Hard Stop Translational Inerter Translational Spring