Low power signal processing and measurement apparatus

Details Low power signal processing and measurement apparatus Low power signal processing and measurement apparatus

G - Physics

01

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G01P 5/18 (2006.01) G01F 1/66 (2006.01) G01F 1/708 (2006.01) G01F 1/712 (2006.01) G01F 23/296 (2006.01) G01N 29/024 (2006.01) G01N 29/40 (2006.01) G01N 29/50 (2006.01) G01S 15/10 (2006.01)

Patent

CA 2213335

A low power apparatus for measuring various process parameters and/or physical properties of a fluid or gas medium by measuring the change of a wave signal or time dependent signal as it traverses the fluid or gas medium, the apparatus comprising; at least one transmission transducer for providing a transmitted wave or time dependent signal for injection into the fluid or gas medium; at least one reception transducer displaced from the transmission transducer for receiving a received wave or time dependent signal from the fluid or gas medium; and an analog signal processor, coupled to the reception transducer, for procession of the received wave or time dependent signal such that a short interval of the processed received wave or time dependent signal is extracted.

L'invention est un appareil à faible consommation d'énergie servant à mesurer divers paramètres d'un processus et/ou diverses propriétés physiques d'un fluide ou d'un gaz en mesurant la variation d'un signal ondulatoire ou d'un signal variable avec le temps quand ce signal traverse le fluide ou le gaz en question. Cet appareil comprend les éléments suivants : au moins un transducteur de transmission servant à produire une onde ou un signal variable avec le temps qui est introduit dans le fluide ou le gaz; au moins un transducteur de réception placé à une certaine distance du transducteur d'émission et servant à recevoir l'onde ou le signal variable avec le temps transmis par le fluide ou le gaz; et un processeur à signaux analogiques couplé au transducteur de réception pour extraire un bref échantillon de l'onde ou du signal variable avec le temps reçu.

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