Phased-array equipment

US4829491A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Ulrich Saugeon · Nuremberg, DE
• Gert Hetzel
• Dietmar Hiller · Zürich, CH

Key dates

• Filing date: Jun 17, 1985
• Grant date: May 9, 1989
• Expiry date: Jun 17, 2005

Classification

• Technology area (CPC G): Physics
• CPC primary: G10K11/346
• WIPO field: Other consumer goods
• WIPO sector: Other fields

Abstract

Phased-array apparatus has a number of ultrasonic transducer elements (E1 to E64) to which are associated delay line elements (M1, T1 to M64, T64, W1-1, W1-2, N1 to W16-1, W16-2, N16; W1 to W16; VL1 to VL64, VR1 to VR16) to provide reception. In order that the control angle may be adjusted with high accuracy, according to the inventive principles delay line elements are provided for the received signals with a short and with a long delay, and several adjacent channels are combined for signal processing. Due to this arrangement, economical constructions of embodiments of the invention are realized.