describe the characteristics of 4 instruments to measure time
Answers
Static Characteristics
The static characteristics and parameters of measuring instruments describe the performance of the instruments related to the steady-state input/output variables only. The various static characteristics and parameters are destined for quantitative description of the instrument�s perfections and they are well presented in the manufacturer's manuals and data sheets.
Dynamic Characteristics
Previous characteristics assume a steady state conditions. The time response shows the behavior of the sensor or the instrument at system to the changes in the magnitude of interest by observing the signal output with time. The step response is used as a basic test and for characterizing the system. The dynamic characteristics of an instrument are:
� Speed of response
� Dynamic error: The difference between the true and measured value with no static error.
� Lag � response delay
� Fidelity � the degree to which an instrument indicates the changes in the measured variable without dynamic error (faithful reproduction).
Explanation:
Answer:
Resistance Temperature Detector (RTD)
Accuracy.
Characteristics of an Measuring Instrument.
Dead Zone Dead time.
Drift.
Dynamic Characteristics.
Dynamic error.
Error.
Linearity.