Qualities of Measurement

Statistical Analysis of Measurement Data

Statistical Analysis of Measurement Data: The statistical analysis of measurement data is important because it allows an analytical determination of the uncertainty of the final test result. To make statistical analysis meaningful, a large number of measurements is usually required. Systematic errors should be small compared to random errors, because Statistical Analysis of Measurement Data

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Dynamic Characteristics in Qualities of Measurement

Dynamic Characteristics: Instruments rarely respond instantaneously to changes in the measured variables. Instead, they exhibit slowness or sluggishness due to such things as mass, thermal capacitance, fluid capacitance or electric capacitance. In addition to this, pure delay in time is often encountered where the instrument waits for some reaction to take place. Such industrial instruments

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Errors in Measurement

Errors in Measurement: Errors in Measurement is the process of comparing an unknown quantity with an accepted standard quantity. It involves connecting a measuring instrument into the system under consideration and observing the resulting response on the instrument. The measurement thus obtained is a quantitative measure of the so called “true value” (since it is very difficult

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Static Characteristics of Measuring Instruments

Static Characteristics of Measuring Instruments: The Static Characteristics of Measuring Instruments are, in general, considered for instruments which are used to measure an unvarying process condition. All the static performance characteristics are obtained by one form or another of a process called calibration. There are a number of related definitions (or characteristics), which are described

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