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The resolution of sensors

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The resolution of sensors

Resolution refers to the ability of the sensor to sense the small changes that are measured. In other words, if the input quantity changes slowly from a certain non-zero value, when the input change value does not exceed a certain value, the output of the sensor will not change, that is, the sensor cannot distinguish the change of this input quantity. Only when the input change exceeds the resolution, the output will change.  

 

Generally, the resolution of each point in the full-scale range of the sensor is not the same, so the larger change in the input that can cause the output to produce a step change in the full-scale range is commonly used as an index to measure the resolution. If the above index is expressed as a percentage of full scale, it is called resolution. The resolution has a negative correlation with the sensor's intactness.