Torque is an important factor in much of the equipment on a
factory floor. Measuring torque is often something that's
misunderstood, which can lead to over- under-designing of
measurement systems. This article addresses the many techniques
and tradeoff of torque measurement techniques. Torque can be
divided into two major categories, either static or dynamic. The
methods used to measure torque can be further divided into two
more categories, either reaction or in-line. Understanding the
type of torque to be measured, as well as the different types of
torque sensors that are available, will have a profound impact
on the accuracy of the resulting data, as well as the cost of
the measurement. In a discussion of static vs. dynamic torque,
it is often easiest start with an understanding of the
difference between a static and dynamic force. To put it simply,
a dynamic force involves acceleration, were a static force does
not. The relationship between dynamic force and acceleration is
described by Newton’s second la