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.
The ambient temperature sensor is a variable resistor that works on a five-volt reference signal that is delivered to it by the Body Control Module (BCM). The resistance in the sensor adjusts to the change in temperature, changing the temperature sensor signal circuit voltage to the BCM. Depending on the resistance in the sensor, the BCM senses a certain voltage on the temperature sensor signal circuit, which it is programmed to match a certain temperature.