NO! This is not a rant about the world coming to an end due to global warming. In this column I’ll discuss the conditions required for dimensional measurement and let environmental types sort out the rest of the universe.
These two choices for bore measurement come into play when close tolerances are the order of the day and speedy, repeatable measurements are required in a production environment. Keeping these requirements in mind, instrument makers usually offer options such as hard chromed bodies or carbide pads and contacts where needed to keep wear at a minimum.
Any article on dimensional measurement will usually get around to micrometers in one form or another. This series on bore measurement is no exception even though I am only offering a brief look at the application.
In my last column I beat up on the calibration of adjustable thread ring gages. Since I’m a nice guy, I thought it only fair that non-adjustable or solid thread ring gage calibration get similar treatment.