weak detection

[/wiːk dɪˈtɛkʃən/]
nounpl: weak detections
detecção fraca
1. The identification or discovery of a signal, object, or phenomenon that is barely perceptible, has low intensity, or is at the threshold of measurement capability
The radar system achieved weak detection of the small aircraft at maximum range.
O sistema de radar alcançou detecção fraca da pequena aeronave no alcance máximo.
2. In scientific and technical contexts, the ability to identify something with low confidence or marginal signal-to-noise ratio
Weak detection of gravitational waves required extremely sensitive instrumentation.
A detecção fraca de ondas gravitacionais exigiu instrumentação extremamente sensível.
3. A result or finding that is inconclusive or marginally significant due to insufficient signal strength
The researchers reported only weak detection of the biomarker in the patient samples.
Os pesquisadores relataram apenas detecção fraca do biomarcador nas amostras do paciente.
This is primarily technical terminology used in scientific, engineering, and technological fields in both Brazil and the United States. It is not colloquial language and appears predominantly in academic papers, technical reports, and specialized professional contexts such as physics, astronomy, electronics, and medical diagnostics.
Synonyms / Sinônimos
marginal detectionfaint detectionlow-intensity detectionthreshold detectionborderline detection
Antonyms / Antônimos
strong detectionclear detectionrobust detectiondefinitive detectionhigh-confidence detection

Regional Variations

General Brazilian Portuguese
detecção fraca
Standard technical term used in scientific and engineering contexts
São Paulo
detecção fraca
Common in technical and scientific communities; identical to general usage
Rio de Janeiro
detecção fraca
Standard usage in academic and industrial settings
Portugal
detecção fraca
European Portuguese uses identical terminology in scientific contexts

Related Words

signal-to-noise ratiosensitivity thresholddetection limitmeasurement uncertaintysensor resolutionbackground noise

Related Idioms & Phrases

barely detectable signal
on the edge of detection
below the detection threshold
marginal signal
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