closed loop

[kloʊzd luːp]
nounpl: closed loops
circuito fechado / malha fechada
1. A system in which output is monitored and fed back as input to maintain desired performance or correct deviations
The thermostat operates in a closed loop system to maintain constant temperature.
O termostato funciona em um sistema de circuito fechado para manter a temperatura constante.
2. In engineering and control systems, a feedback mechanism where the output influences the input
Modern aircraft use closed loop control systems for autopilot functions.
Aeronaves modernas usam sistemas de controle de malha fechada para funções de piloto automático.
3. In business and logistics, a circular process where materials or products are recycled back into the system
The company implemented a closed loop recycling program to reduce waste.
A empresa implementou um programa de reciclagem de circuito fechado para reduzir resíduos.
The term 'closed loop' is widely used in Brazilian technical and engineering sectors, particularly in manufacturing, quality control, and automation industries. In the USA, it's standard terminology in engineering, control systems, and increasingly in sustainability/circular economy discussions. The concept reflects modern industrial practices emphasizing efficiency and feedback mechanisms.
Synonyms / Sinônimos
feedback systemfeedback loopclosed-loop systemcircular system
Antonyms / Antônimos
open loopopen-loop systemfeedforward system

Regional Variations

General Brazilian
circuito fechado / malha fechada
Most common usage in technical and engineering contexts
São Paulo
sistema de malha fechada
Preferred in industrial and manufacturing sectors
Rio de Janeiro
circuito realimentado
Alternative technical terminology used in some contexts
Portugal
malha fechada / circuito fechado
European Portuguese uses same terminology as Brazilian with slight preference for 'malha fechada'

Related Words

feedbackcontrol systemautomationregulationcircular economymalha de controle

Related Idioms & Phrases

closed loop communication - ensuring message feedback
break the closed loop - to interrupt a feedback system
complete the closed loop - to finalize a cyclic process
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