Question 2 A process instrument reading Z (volts) is thought to be related to a process stream flow rate V (L/s) and pressure P (kPa) by the expression: A Z = aýÞpc. Using the three data points shown in the table above, calculate the constants a, b and c and indicate their units. In this particular case there is no regression to be performed, but only 3 equations in 3 unknowns to solve. 1 3. 1.20 1.75 1.02 ý (L/s) P (kPa) Z (volts) 11.2 10.2 9.1 2.58 3.72 3.50
Theory and Design for Mechanical Measurements
Measurement is a term that refers to analyzing a manufactured component regarding the degree of accuracy for dimensions, tolerances, geometric profile, roundness, flatness, smoothness, etc. Measurement always involves comparing the manufactured component or the prototype with a standard specimen whose dimensions and other parameters are assumed to be perfect and do not undergo changes with respect to time.Precisely in mechanical engineering the branch that deals with the application of scientific principles for measurements is known as metrology. The domain of metrology in general deals with various measurements like mechanical, chemical, thermodynamic, physical, and biological measurements. In mechanical engineering, the measurements are limited to mechanical specific such as length, mass, surface profile, flatness, roundness, viscosity, heat transfer, etc.
Basic principles of engineering metrology
Metrology is described as the science of measurement, precision, and accuracy. In other words, it is a method of measurement based on units and predefined standards.
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