The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 02, 1993
Filed:
May. 09, 1991
Christoph B Burckhardt, Muttenz, CH;
Kontron Instruments Holdings NV, Curacao, AN;
Abstract
Doppler Flow Velocity Meter for the irradiation of a fluid with pulses of ultrasonic waves which are fed at a predetermined pulse repetition frequency, and for the reception of echo waves reflected by fluid particles and to emit corresponding echo signals; and having receiver connected to an ultrasonic transducer for the reception and processing of echo signals which correspond to at least two different echo waves, which are reflected by the particles in a fixed point of the flow path in response to a first and a second wave pulse emitted, in which the adjacent but separate frequency bands of the echo signal are each processed in a separate signal processing channel;