Performance of instruments

All instrumentation systems are characterized by the system characteristics or system response.

It consists of two basic characteristics such as static and dynamic. If the instrument is required to measure a condition not varying with time characteristics are called static while for a time varying process variable measurement, the dynamic characteristics are more important.

Static response:

The static characteristics of an instrument are considered for instruments which are used   to measure an unvarying process conditions.

Dynamic response:

The behaviors of an instrument under such time varying input – output conditions called dynamic response of an instrument. The instrument analysis of such dynamic response is called

Dynamic analysis of the measurement system.

Dynamic quantities are two types

1.   Steady state periodic

2.   Transient

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