: It covers any system that records values proportional to length changes, including traditional clip-on gauges and modern non-contacting optical systems. Limitations

Critical for optical devices where camera alignment and lighting impact data. Variable Management:

is the most common requirement for determining the modulus of elasticity in metals.

ASTM E83 is a standard test method for verifying the linearity of a measuring instrument. Here are some key features related to ASTM E83: