The temperature of an ice bath is measured numerous times with a digital thermometer. The true temperature of the ice bath is 0.07202C. The sample mean temperature is T = -0.0008C. The sample standard deviation of all the readings is 0.02529C. We assume that the precision errors in the readings are purely random. In the standard engineering format, calculate the tolerance for 95%."
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.
|
"The temperature of an ice bath is measured numerous times with a digital thermometer. The true temperature of the ice bath is 0.07202C. The sample mean temperature is T = -0.0008C. The sample standard deviation of all the readings is 0.02529C. We assume that the precision errors in the readings are purely random. In the standard engineering format, calculate the tolerance for 95%." |
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 4 images
