Patent · US Expired

Ultrasonic apparatus for sector scanning

US4385521A · kind A · utility

5Cited by

3References

7Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Jürgen Hagen · Erlangen, DE
Walter Hetz · Erlangen, DE
Gert Hetzel
Dirk Schroeder · Eckental, DE

Key dates

Filing date	Sep 29, 1980
Grant date	May 31, 1983
Priority date	—
Expiry date	Sep 29, 2000

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B8/543
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

In the exemplary embodiments, the apparatus comprises: an ultrasonic transducer arrangement; a drive arranged to pivotably displace the transducer arrangement within a predetermined angular range; an actual-value generator for supplying a signal (F.sub.I (.rho.) dependent upon the angular position of the transducer arrangement within the said range; a desired-value generator for supplying a signal (F.sub.S (.rho.)) representing a desired angular position of the transducer arrangement within the said range; and a control for controlling the drive in dependence upon such signals from the actual-value and desired-value generators. The actual-value and desired-value generators are adapted to supply respective signals having the same or similar forms over a relatively large signal range within the said range.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.