RADIO FREQUENCY PARTICULATE SENSING SYSTEM

A particulate sensing system (28) for a particulate trap (19) including a radio frequency transmit circuit (32) and a radio frequency receive circuit (34) is disclosed. The transmit circuit may include a wideband signal generator (62) configured to produce a wideband radio frequency signal and a wid...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	KNITT, ANDREW, A, DECOU, MARK, T
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES LIGHTING MACHINES OR ENGINES IN GENERAL MEASURING MECHANICAL ENGINEERING PHYSICS STEAM ENGINES TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TESTING WEAPONS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A particulate sensing system (28) for a particulate trap (19) including a radio frequency transmit circuit (32) and a radio frequency receive circuit (34) is disclosed. The transmit circuit may include a wideband signal generator (62) configured to produce a wideband radio frequency signal and a wideband radio frequency amplifier (48), coupled to the wideband signal generator. The transmit circuit may include a transmit antenna (36) coupled to the wideband radio frequency amplifier and configured to propagate the wideband radio frequency signal through a filter medium (24). The receive circuit may include a receive antenna (38) configured to receive the wideband radio frequency signal that has been propagated through the filter medium, and a bandpass filter (56) coupled to the receive antenna and configured to limit a frequency range of the received wideband radio frequency signal. The receive circuit may include a radio frequency power sensing device (58) coupled to the bandpass filter and configured to sense a power level of the received wideband radio frequency signal and configured to output a direct current voltage proportional to the total power received across an operating frequency range of the radio frequency power sensing device. L'invention concerne un système de détection de particules (28) pour un piège à particules (19) comprenant un circuit de transmission radio-fréquences (32) et un circuit de réception radio-fréquences (34). Le circuit de transmission peut comporter un générateur de signaux large bande (62) configuré pour produire un signal de radio-fréquences large bande et un amplificateur radio-fréquences large bande (48) couplé au générateur de signaux large bande. Le circuit de transmission peut comporter une antenne de transmission (36) couplée à l'amplificateur radio-fréquences large bande et configurée pour propager le signal radio-fréquences large bande à travers un milieu de filtre (24). Le circuit de réception peut comporter une antenne de réception (38) configurée pour recevoir le signal de radio-fréquences large bande qui a été propagé à travers le milieu de filtre, et un filtre passe bande (56) couplé à l'antenne de réception et configuré pour limiter une gamme de fréquences du signal radio-fréquences large bande reçu. Le circuit de réception peut comprendre un dispositif de détection de puissance radio-fréquences (58) couplé au filtre passe bande et configuré pour détecter un niveau de puissance du signal de radio-fréquences