Ultrasonic transducer array with a reduced number of transducer elements

An ultrasonic transducer array in which distances between the array's transducer elements (Tij) increase in the direction of the rows (x direction) and in the direction of the columns (y direction) from a center of symmetry (S) outward. The integral over a straight-line function f(x) and/or g(y...

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Bibliographische Detailangaben
Hauptverfasser:	BARTOSCH, EKKERT, BARTELT, HARTMUT, KRAEMMER, PETER
Format:	Patent
Sprache:	eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DEAF-AID SETS DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES DIAGNOSIS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY FOR PERFORMING MECHANICAL WORK IN GENERAL GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL HUMAN NECESSITIES HYGIENE IDENTIFICATION LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS MEASURING MEDICAL OR VETERINARY SCIENCE METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY PERFORMING OPERATIONS PHYSICS PUBLIC ADDRESS SYSTEMS RADIO DIRECTION-FINDING RADIO NAVIGATION SURGERY TESTING TRANSPORTING
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Beschreibung
Zusammenfassung:	An ultrasonic transducer array in which distances between the array's transducer elements (Tij) increase in the direction of the rows (x direction) and in the direction of the columns (y direction) from a center of symmetry (S) outward. The integral over a straight-line function f(x) and/or g(y), which steeply decreases on either side of a center of symmetry (S) between the center points (Mij) of adjacent transducer elements (Tij), is constant for each row and/or column. Thus, the number of transducer elements (Tij) is reduced without considerable deterioration of the beam characteristic of the transducer array.