Sensitivity
The sensitivity is an important specification for a spirit level. The overall accuracy of the device depends on its sensitivity. The sensitivity of a level is defined as the change of angle or gradient required to move the bubble by unit distance. If the bubble housing has graduated divisions then the sensitivity refers to the angle or gradient change required to move the bubble by one of these divisions. Sensitivity of a spirit level is expressed in mm/m. 2mm is the standard spacing for graduations. The standard sensitivity for a machinst level is .0005 inch per 2mm division (10 seconds arc).
Read more about this topic: Spirit Level
Famous quotes containing the word sensitivity:
“...some small boys came out of the city and jeered at him, saying, “Go away, baldhead! Go away, baldhead!””
—Bible: Hebrew, 2 Kings 2:23.
Elisha--proving that baldness has been a source of sensitivity for centuries, Elisha cursed them and they died.
“The vanity of men, a constant insult to women, is also the ground for the implicit feminine claim of superior sensitivity and morality.”
—Patricia Meyer Spacks (b. 1929)
“The sensitivity of men to small matters, and their indifference to great ones, indicates a strange inversion.”
—Blaise Pascal (1623–1662)