What is Dimensional Metrology?

Metrology is the science of measurement. Dimensional metrology, a mechanism of metrology, is the science of calibrating and using physical measurement equipment to quantify the physical size of or distance from any given object.

The dimensional metrology processes and considerations are as numerable as there are man made components on earth. There are several factors to consider when developing the metrology process.

1. 1. Determine what dimensional information is required. What is the main purpose of this measurement?
2. 2. Ascertain the required level of accuracy and the best suited equipment for the project.
3. 3. What are the time allowances and working conditions at the time of the inspection?
4. 4. Consider the outside influences such as physical stresses, thermal variations, and the stability of the component.
5. 5. Plan a dimensional orientation and control system which:
   1. A. Will remain constant despite alignment adjustments and environmental influences?
   2. B. Is dimensionally repeatable?
   3. C. Will incorporate data verifications and prove the data gathered in the process?

Return on Investment
A note from Schaeffer Precision Alignment president, Michael Schaeffer

In the past 35 years of providing dimensional metrology one of the things that have amazed me the most is the number of machines installed without the benefit of professional measurement only to perform poorly due to alignment error. I have found components that were installed and never aligned properly always cause unscheduled down time, excessive vibration, habitual wear of bearings and couplings.

The truth is that alignment of the these machines at the time of installation or during regularly scheduled down time could have saved these companies hundreds of thousands of dollars in maintenance cost. Well engineered gas and steam turbines, boiler feed pumps, rolling mills, overhead cranes, electric motors, gear boxes, and rotating equipment always provide a higher return on investment when they are well maintained and properly aligned.

If you have any questions about how our alignment services could help your company's manufacturing process increase its return on investment give me a call.

Michael Schaeffer
President of Schaeffer Precision Alignment