Mass moment of inertia for a particle: The mass moment of inertia is one measure of the distribution of the mass of an object relative to a given axis. where O-O is the axis around which one is evaluating the mass moment of inertia, and r is the perpendicular distance between the mass and the axis O-O.
Differential Pressure DP Sensor The differential pressure sensor is used for flowmeasurement of the Diesel Particulate Filter (DPF). Thissensor has two pressure ports and senses the differencein pressure between the two ports.
Torque sensor pedal assist systems. A much more recent system which has improved on the older pedal assist system is a torque sensor PAS. The torque sensor is usually mounted on either the pedal crank or near the rear dropout and measures the amount of torque being applied during pedaling.