Device and method for determining properties of a medium

US9689846B2 · kind B2 · utility

Assignee

• SENSACTION AG · DE

Inventors

• Hendrik Faustmann · Coburg, DE
• Michael Münch · Coburg, DE

Key dates

• Filing date: May 18, 2012
• Grant date: Jun 27, 2017
• Expiry date: Feb 22, 2034

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2291/0427
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A device for determining properties of a medium, comprising a carrier which can be brought in contact with the medium; at least one transmitter arranged on the carrier for exciting acoustic waves in the carrier; at least one receiver arranged on the carrier for receiving acoustic waves which originate from waves excited in the carrier by means of the transmitter; and first and second material regions arranged on the carrier, wherein the second material region absorbs sound waves with the frequency of the acoustic waves excited in the carrier more strongly than the first material region. The carrier has a first surface with which it is to be brought in con-tact with the medium and a second surface which faces away from the first surface, wherein the transmitter as well as the first and the second material region are arranged on the second surface.