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Definition of "Sensitivity" |
Ratio of the output signal or response of the instrument to a change of input or measured variable. / For an ammeter, the amount of current that will cause full-scale deflection of the meter. For a voltmeter, the ratio of the voltmeter resistance divided by the full-scale reading of the meter; expressed in ohms per volt. The ability of a receiver to reproduce very weak signals. The greater the receiver sensitivity, the weaker the signal that can be reproduced. Efficiency of a microphone. Describes microphone power delivered to a matched-impedance load as compared to the sound level being converted. Usually expressed in terms of the electrical power level. / Sensitivity and specificity are statistical measures of the performance of a binary classification test, also known in statistics as classification function. Sensitivity also called the true positive rate, or the recall rate in some fields measures the proportion of actual positives which are correctly identified as such. / The sensitivity of an electronic device, such as a communications system receiver, or detection device, such as a PIN diode, is the minimum magnitude of input signal required to produce a specified output signal having a specified signal-to-noise ratio, or other specified criteria. / Displacement of signal transitions resulting from the persistence of transients caused. / a property of a system indicating the combined effect of component tolerances on overall system behavior, the effect of parameter variations on signal perturbations and the effect of model uncertainties on system performance and stability. For example, in radio technology, sensitivity is the minimum input signal required by the receiver to produce a discernible output. |
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