What is defined as the number of revolutions of the gear meshing with the worm on the rotor shaft per rotation of the fastest dial pointer?

The definition provided in the question refers specifically to the relationship between the gear that interacts with the worm and the movement of the dial indicator. The register ratio is the term that encapsulates this relationship, quantifying how many revolutions of the gear correspond to one complete rotation of the fastest dial pointer. This is crucial in measurement verification as it directly affects the accuracy and resolution of the readings displayed by the instrumentation.

In practical terms, understanding the register ratio is essential for calibrating measurement equipment, ensuring that the output data reflects the true input measurements. The register ratio can thus be seen as a key parameter in the functioning of devices that utilize a combination of gears and dials for measurement purposes.