METHOD FOR GENERATING ULTRASOUND TRANSMISSION WAVES AND ULTRASOUND SYSTEM FOR CARRYING OUT THE SAID METHOD

A method for generating ultrasound transmission waves comprising the steps of:a) providing an array of electroacoustic transducer each one being connected to an electric excitation signal generator by a dedicated feeding channel;b) feeding at least a part of the electroacoustic transducers with a pu...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	PELLEGRETTI, PAOLO, CROCCO, MARCO, BIORDI, FULVIO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES FOR PERFORMING MECHANICAL WORK IN GENERAL GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PERFORMING OPERATIONS PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION SOUND-PRODUCING DEVICES TESTING TRANSPORTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A method for generating ultrasound transmission waves comprising the steps of:a) providing an array of electroacoustic transducer each one being connected to an electric excitation signal generator by a dedicated feeding channel;b) feeding at least a part of the electroacoustic transducers with a pulsed electric signal having a predetermined frequency, a predetermined amplitude, a predetermined length or duration and a predetermined phase or a predefined delay with respect to the pulsed electric signals fed to the adjacent transducer elements, the said pulsed electric excitation signals comprising a sequence of pulses;c) modulating each or at least part of the pulsed electric signals by feeding to the transducer elements only a predetermined portion of the pulses of the said pulsed electric signals.The step c) is carried out by cutting the duration of each pulse of the pulsed electric excitation signal according to a predetermined time period.