AT81492B - Device for making low-frequency vibrations audible Device for making low-frequency vibrations audible. higher frequency. - Google Patents

Device for making low-frequency vibrations audible Device for making low-frequency vibrations audible. higher frequency.

Info

Publication number
AT81492B
AT81492B AT81492DA AT81492B AT 81492 B AT81492 B AT 81492B AT 81492D A AT81492D A AT 81492DA AT 81492 B AT81492 B AT 81492B
Authority
AT
Austria
Prior art keywords
frequency
making low
audible
frequency vibrations
vibrations audible
Prior art date
Application number
Other languages
German (de)
Original Assignee
Siemens & Halske Ag Siemens &
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens & Halske Ag Siemens & filed Critical Siemens & Halske Ag Siemens &
Application granted granted Critical
Publication of AT81492B publication Critical patent/AT81492B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Vorrichtung zum Hörbarmachen von Schwingungen niederer Frequenz. 



   Die Erfindung bezieht sich auf eine Vorrichtung zum Hörbarmachen von mit dem Ohre nicht vernehmbaren Schallschwingungen niederer Frequenz, die darauf beruht, dass die Schwingungen niederer Frequenz auf einen künstlich erzeugten   hörbare   n Ililfston von höherer Frequenz derart einwirken, dass im Hilfston periodische   Intensitätsschwankungen   entstehen, die dem Ton niederer Frequenz entsprechen. Es kann dies gescheben durch Zuhilfenahme eines   Wechselstromes,   durch den mittels bekannter   Vorrichtungen hörbare Töne   erzeugt werden. 



   Gemäss der Erfindung geschieht dies mit Hilfe eines magnetischen Kreises, der durch 
 EMI1.1 
 Frequenz beeinflusst wird. Die Schwirgungen der niederen Frequenz können dabei in be-   liebiger Weise,   beispielsweise mit Hilfe eines Mikrophones. erzeugt werden. Der magnetische Kreis kann beispielsweise der Eisenkern eines Transformators sein mit zwei Primär-   wicklungen.   durch die die beiden Schwingungen auf eine   Sekundärwicklung   übertragen werden. In der   Sekundäreinnchtung   entsteht ein Wechselstrom der höheren Frequenz, dessen Intensität unter dem Einflusse des durch die eine Primärwicklung hindurchtretenden Stromes der niederen Frequenz verändert wird.

   Indem man den Sekundärstrom auf einen 
 EMI1.2 
 Schwingungen der niederen Frequenz wahr. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Device for making vibrations of low frequency audible.



   The invention relates to a device for making audible low-frequency sound vibrations that cannot be heard with the ear, which is based on the fact that the low-frequency vibrations act on an artificially generated audible auxiliary tone of higher frequency in such a way that periodic intensity fluctuations arise in the auxiliary tone, which Lower frequency tone. This can be done with the aid of an alternating current, by means of which audible tones are generated by means of known devices.



   According to the invention, this is done with the help of a magnetic circuit through
 EMI1.1
 Frequency is influenced. The vibrations of the lower frequency can be done in any way, for example with the help of a microphone. be generated. The magnetic circuit can, for example, be the iron core of a transformer with two primary windings. through which the two vibrations are transmitted to a secondary winding. In the secondary device, an alternating current of the higher frequency arises, the intensity of which is changed under the influence of the current of the lower frequency passing through the primary winding.

   By having the secondary current on a
 EMI1.2
 Lower frequency vibrations true.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims (1)

PATIENT-ANSPRUCH : Vorrichtung zum Hörbarmachen von Schwingungen niederer Frequenz mit Hilte von EMI1.3 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATIENT CLAIM: Device for making vibrations of low frequency audible with the aid of EMI1.3 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT81492D 1915-09-03 1916-07-18 Device for making low-frequency vibrations audible Device for making low-frequency vibrations audible. higher frequency. AT81492B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE81492X 1915-09-03

Publications (1)

Publication Number Publication Date
AT81492B true AT81492B (en) 1920-10-11

Family

ID=5639526

Family Applications (1)

Application Number Title Priority Date Filing Date
AT81492D AT81492B (en) 1915-09-03 1916-07-18 Device for making low-frequency vibrations audible Device for making low-frequency vibrations audible. higher frequency.

Country Status (1)

Country Link
AT (1) AT81492B (en)

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