Performance Metrics in Basic Instrument Knowledge

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​Performance Metrics 1. What is the response time of a gauge? When measuring the parameter under test with a meter, it always takes some time for the meter to display the reading, and this time is known as the meter’s response time. 2. According to the way error values are expressed, what can errors be classified as? It can be divided into absolute error, relative error, and reference error. 3. When the selected unit is the same, does a greater number of decimal places in the measurement value result in more precise measurement? Yes. 4. What is backlash? Hysteresis, also known as variation, is the maximum difference between the corresponding output values for the same input during the forward and reverse strokes. (If otherwise specified, it refers to the full range of operation.) 5. What is the dead zone of a gauge? The dead zone is a limited range within which changes in the input value do not cause any noticeable change in the output value; it is expressed as a percentage of the input range.