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Some Contents:-
• Significance of Mechanical Measurements
• Classification of measuring instruments
• Generalized measurement system
• Types of inputs: Desired, interfering and modifying inputs.
• Static characteristics: Static calibration, Linearity, Static
Sensitivity, Accuracy, Static error, Precision, Reproducibility,
Threshold, Resolution, Hysteresis, Drift, Span & Range etc.
• Errors in measurement: Types of errors, Effect of component
errors, Probable errors.
Mechanical Measurement:
• Measurement means determination of anything that exist in
some amount.
• If those things that exist are related to mechanical engineering,
then the determination of such amount are referred to as
mechanical measurement.
• An Engineer is not only interested in the measurement of
physical variable but also concerned with their control.
• These two functions are closely related because one must be
able to measure a variable such as tempt or flow in order to
control it.
• The accuracy of control is essentially dependent on the accuracy
of measurement. Hence, a good knowledge of measurement
techniques is necessary for the design of control system.
• Definition of Measurement:
Measurement is defines as the process or the act of obtaining a
quantitative comparison between predefined standard and an
unknown magnitude
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