EP 2622878 A1 20130807 - MICROPHONE USING A MAGNETO-ELASTIC EFFECT
Title (en)
MICROPHONE USING A MAGNETO-ELASTIC EFFECT
Title (de)
MIKROPHON UNTER VERWENDUNG EINES MAGNETOELASTISCHEN EFFEKTS
Title (fr)
MICROPHONE UTILISANT UN EFFET MAGNÉTO-ÉLASTIQUE
Publication
Application
Priority
- DE 102010043560 A 20101108
- EP 2011067247 W 20111004
Abstract (en)
[origin: WO2012062514A1] The present invention relates to a microphone and to a method for capturing sound. Such a microphone is intended to be able to be used particularly for low-frequency sound or pressure changes. Furthermore, ambient noise is intended to cause no interference. The invention is distinguished in that at least one ferromagnetic material (1) which is acoustically coupled to the sound waves and which is capable of vibration is provided, wherein at least one coil (3) inductively coupled to the material (1) is produced for the purpose of converting permeability changes in the material (1) into an electrical alternating quantity.
IPC 8 full level
H04R 15/00 (2006.01); H10N 35/00 (2023.01)
CPC (source: EP)
H04R 15/00 (2013.01)
Citation (examination)
DE 1115766 B 19611026 - SCHOEPS DR ING KARL
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DE 102010043560 A1 20120510; EP 2622878 A1 20130807; WO 2012062514 A1 20120518
DOCDB simple family (application)
DE 102010043560 A 20101108; EP 11770077 A 20111004; EP 2011067247 W 20111004