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Spectral sensitivity
| Photo Chemical Glossary |
The rate of response of a photographic material to a particular range
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Sensibilidad espectral ., испанский
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Sensitivity, английский
- Change in the response of a measuring instrument divided by the corresponding change in the stimulus (1)
- The ratio of the output of an instrument to the input (i.e. -gain).
- Defines the smallest signal detectable in the presence of systems noise
- In television, a factor expressing the incident illumination upon a specified scene required to produce a specified picture signal at the output terminals of a television camera.
- For a camera usually specified in lux to provide indication of light level required to gain a full video signal from the camera.
- A measure of the amount of light required to provide a standard video signal. sensitivity values are stated in lux (see lux) or foot-candles.
- Lens iris aperture required to provide a video output signal of standard level at a specified light input. in general, sensitivity is measured using an 89.9% reflectance grey scale chart illuminated by a 3200? k illuminance at 2000 lux (color camera) or 400 lux (b/w camera), for a video output level of 100%.
- 1. the fact of being able to detect and respond to an outside stimulus 2. the rate of positive responses in a test from persons with a specific disease. a high rate of sensitivity means a low rate of people being incorrectly classed as negative. compare specificity
- Чувствительность; сенситивность; восприимчивость специфически измененная реактивность. вероятность возникновения реакции на введение антигенов. ср. susceptibility (восприимчивость (к болезни)).
- The sensitivity of classification rule is a measure of its ability to correctly classify observations into a particular category. it is defined to be the ratio of the number of true positives to the number of positives in a test set. this value is usually inversely related to the specificity of the test for a given set of data and a particular classification rule. note that this measure is different from the positive predictive value of a rule, which is a measure of the probability that a positive is a true positive. if multiple classification categories exist, each category will have its own sensitivity, specificity, and positive predictive value. see also: positive predictive value, specificity.
- Чувствительность: a) различие в концентрации аналита, соответствующее наименьшему обнару-живаемому различию в реакции метода. представляется наклоном калибровоч-ной кривой. иногда ошибочно используется для обозначения предела обнаружения. b) частота истинно положительных результатов, полученных при испытании проб, в которых, насколько известно, содержится аналит [55]. c) отношение изменения показаний измерительного прибора к соответствую-щему изменению измеряемой величины. измеряемой величиной может быть, например, количество исследуемого вещества, содержащееся в пробе.
- Чувствительность. в сенсорном анализе — способность различать, идентифицировать и/или дифференцировать (качественно и/или количественно) один или более раздражителей с помощью органов чувств (предварительный стандарт мос, 12). в аналитической химии — чувствительность метода, которая (для простого-метода)- характеризуется наклоном калибровочной кривой, т. е. является дифференциалом измеряемой величины по отношению к концентрации dx/dc. чувствительность не следует путать с наименьшим количеством или наиболее низкой концентрацией, которые можно обнаружить с помощью данного метода; правильный термин для обозначения этого понятия — предел чувствительности (см. limit of detection).
- The output of a microphone in volts for a given input in sound pressure level. sensitivity can also mean the sound pressure level (spl) a loudspeaker produces at one meter when driven with one watt of pink noise.
- The degree of confidentiality of an e-mail message or calendar item, ranging from normal to confidential.
- The significance level that must be reached before a notification is sent.
- Чувствительность:
- Measure of a sensor’s ability to detect small signals. see resolution.
- Ability of a sensor or system to distinguish a signal or indication from background noise. see also probability of detection.
- Ability of a sensor or system to distinguish a signal or indication from background noise. see also probability of detection. si (international system of units): international measurement system in which the following seven
- (1) performance characteristic of a penetrant system, of a developer, or of an entire penetrant process that provides a relative measure of the ability to detect discontinuities. (2) enumerated level of performance of a penetrant system determined by applying standardized processing procedures on reference standards with known defects. (3) ability of a sensor or system to distinguish a signal or indication from background noise. compare probability of detection.
- Probability of detection.
- Ability of signal to change with small changes of measured quantity.
Sensitivity (mt, et, rt, pt, ut), английский
The capacity or degree of responsiveness to magnetic particle inspection. the ability of an ultrasonic system to detect a very small discontinuity. the ability of a penetrant to detect surface defects. higher sensitivity indicates finer cracks can be detected.
Sensitivity (percentage), английский
A ratio of the smallest detectable thickness difference divided by the thickness of material being examined.
Sensitivity analysis, английский
- Examines how the results of a calculation or model vary as individual assumptions are changed.
- Sensitivity analysis is a general term used to refer to the process of varying key parameters or relationships in a model to determine how sensitive the conclusions are to the (assumed or estimated) values of the parameters or input.
- Analysis of the effect on a project`sprofitability of changes in sales, cost, and so on.
- Анализ чувствительности конъюнктуры
Sensitivity and specificity, английский
Sensitivity label, английский
Sensitivity labеl, английский
Sensitivity level, английский
The degree of confidentiality of an e-mail message or calendar item, ranging from normal to confidential.
Sensitivity of a directional element, английский
Sensitivity of water resources (global change hydrology program), английский
Sensitivity ratio, английский
Sensitivity scope, английский
Sensitivity slider, английский
A control in the ui that is used to indicate the sensitivity of a notification.
Sensitivity standard of radiation inspection, английский
Sensitivity testing, английский
Sensitivity threshold, английский
A threshold that applies to resource calls and are less than or equal to the alerting threshold, generally being set to approximately 100 milliseconds. the sensitivity threshold defines what is determined to be a ‘fast-function’, and those functions will not be included in the event call stacks to reduce the amount of data sent to the management server.
Sensitivity threshold of eddy current flaw detector, английский
Sensitivity time control, английский
Регулирование чувствительности по времени
Sensitivity to interference, английский
Sensitivity to propagation, английский
Sensitivity training, английский
- A type of emotional training designed to help people become more aware of their intrinsic judgement and prejudices
- Sensitivity training is a form of education and training that is generally conducted in a classroom setting that is meant to help people learn about themselves and others.
- A form of individual or group counseling geared toward increasing self-awareness of one’s own prejudices and sensitivity to others.
Photographic, английский
Particular, английский
A частный; конкретный grammar partitioned a разделённый на части sequence 1 одна из базовых операций компьютерной обработки текстов; в каче- стве данных берутся текст либо сегмент текста, грамматика и цель разбора, а на выходе получается удовлетворяющее цели множество значений категориальной отнесённости сегментов в виде, например, дерева разбора. 2 применяется запоминание также и гипотез, выдвигаемых при разбо- ре, и результатов их проверки – м. кэй. 3 используется, в частности, для разбора арифметических выражений. partitioning n членение sentence ~ членение предложений (напр., при переводе )
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Etch factor, английский
The ratio of the etched depth to the lateral etch, or undercut.
Exposure (e), английский
The quantity of light received per unit area of the layer. exposure may be
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