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Highway Addressable Remote Transducer

Highway Addressable Remote Transducer (HART) est un protocole de communication utilisé en contrôle industriel pour communiquer numériquement avec des capteurs ou actionneurs dits intelligents.

Il consiste à enrichir une boucle de courant 4-20 mA, classiquement utilisée de manière analogique, en y superposant un courant alternatif de valeur moyenne nulle, dont la modulation de fréquence véhicule des informations de manière numérique[1].

Le WirelessHART est une version sans fil de ce protocole.

Références

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  1. GT 18-4 CIAME SEE, Mireille Bayart, Blaise Conrard, André Chovin et Michel Robert, « Capteurs et actionneurs intelligents », Techniques de l'ingénieur, no S 7 520,‎ , p. 8 (ISSN 1632-3831).

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Highway Addressable Remote Transducer
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