Distance of Auxiliary Spring from Mid of Lever is the length of the spring from the midpoint of the governor’s lever, affecting the governor’s sensitivity. And is denoted by b. Distance of Auxiliary Spring from Mid of Lever is usually measured using the Meter for Length. Note that the value of Distance of Auxiliary Spring from Mid of Lever is always positive. Typically, the value of Distance of Auxiliary Spring from Mid of Lever is greater than 0.