Measurement of a physical quantity that cannot be directly observed, such as cutting force in machining, proceeds through a three-stage instrumentation chain: transducing (conversion of the variable into a detectable signal), conditioning (amplification, filtering, and stabilization of that signal), and readout (display, recording, or storage). Force-measuring devices called dynamometers apply this chain by exploiting one of three physical effects proportional to the applied force — elastic deflection, elastic strain, or induced pressure — using mechanical, electrical (resistive, capacitive, inductive), or piezoelectric transducers, with the proportionality constant established through calibration against known loads. This belongs to the domain of manufacturing/mechanical measurement engineering, specifically the instrumentation sub-field concerned with force and stress sensing in machine tool processes.
Measurement of a physical quantity that cannot be directly observed, such as cutting force in machining, proceeds through a three-stage instrumentation chain: transducing (conversion of the variable …