AT38770B - Device for measuring the relative strengths of noises and tones. - Google Patents

Device for measuring the relative strengths of noises and tones.

Info

Publication number
AT38770B
AT38770B AT38770DA AT38770B AT 38770 B AT38770 B AT 38770B AT 38770D A AT38770D A AT 38770DA AT 38770 B AT38770 B AT 38770B
Authority
AT
Austria
Prior art keywords
noises
tones
measuring
relative strengths
wall
Prior art date
Application number
Other languages
German (de)
Inventor
Heinrich Dr Bock
Hans Thoma
Original Assignee
Heinrich Dr Bock
Hans Thoma
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 Heinrich Dr Bock, Hans Thoma filed Critical Heinrich Dr Bock
Application granted granted Critical
Publication of AT38770B publication Critical patent/AT38770B/en

Links

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  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Description

  

   <Desc/Clms Page number 1> 
 
 EMI1.1 
 



   Gegenstand vorliegender Erfindung ist eine Vorrichtung zum Messen der relativen Stärkenverhältnisse verschiedener Geräusche und Töne und besteht dieselbe im Wesentlichen aus einem schalldichten Raum, der durch eine schallstarre Wand in zwei Abteilungen geteilt wird. In das eine Abteil gelangen durch eine Öffnung die zu untersuchenden Schallschwingungen.   Die schallstarre   Wand ist mit einer kleinen Öffnung versehen, welche durch einen Schieber oder dgl. allmählig verschlossen werden kann. 



   Das Verfahren, die Stärkeverhältnisse von Geräuschen zu bestimmen, beruht nun darauf, dass je nach der Stärke eines in das erste Abteil gelangenden Geräusches jedesmal eine andere Stellung des Schiebers u. dgl. notwendig ist, um dasselbe soweit abzudämpfen, dass es vermittelt einer an das zweite Abteil angeschlossenen Schalleitung nicht mehr wahrnehmbar ist. Bei stärkeren Geräuschen wird der Schieber mehr geschlossen sein müssen, bei schwächeren Geräuschen wird er eine grössere Öffnung in der schallstarren Wand offen lassen können. 



   Die Zeichnung zeigt ein Ausführungsbeispiel der Vorrichtung im Schnitt. 



   In dem Gehäuse b befindet sich die schallstarre Wand e, den Innenraum in zwei 
 EMI1.2 
 dem Abteil d führt ein Loch   m   die in diesem Raume auftretende Schallschwingung zwecks Wahrnehmung in geeignete Apparate. Die Wand e besitzt ein   Loch h, welches dadurch     allmähiig   verschlossen werden kann, dass man den in einer mit Gewinde versehenen Ausbohrung f der Wand e eingeschraubten, vorne konisch gespitzten Stift   allmählig   in das konische Ende der Ausbohrung f einschraubt. Der Stift g ist mit einem Kopf k versehen, 
 EMI1.3 
 grades ermöglicht. 

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



   <Desc / Clms Page number 1>
 
 EMI1.1
 



   The subject of the present invention is a device for measuring the relative strengths of various noises and tones and consists essentially of a soundproof room which is divided into two compartments by a soundproof wall. The sound vibrations to be examined enter one compartment through an opening. The acoustically rigid wall is provided with a small opening which can be closed gradually by a slide or the like.



   The method of determining the strength ratios of noises is based on the fact that, depending on the strength of a sound coming into the first compartment, a different position of the slider u Like. Is necessary to attenuate the same to such an extent that it is no longer perceptible through a sound line connected to the second compartment. With stronger noises the slide will have to be closed more, with weaker noises it will be able to leave a larger opening in the soundproof wall open.



   The drawing shows an embodiment of the device in section.



   In the housing b is the soundproof wall e, the interior in two
 EMI1.2
 In compartment d, a hole m leads the sound oscillation occurring in this space into suitable apparatus for the purpose of perception. The wall e has a hole h, which can be gradually closed by gradually screwing the conically pointed pin screwed into a threaded bore f in the wall e into the conical end of the bore f. The pin g is provided with a head k,
 EMI1.3
 degree enables.

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

 

Claims (1)

PATENT-ANSPRUCH : Vorrichtung zur Messung der relativen Stärkcnverhältnisse von Geräuschen und Tönen, gekennzeichnet durch zwei mit Schalleintritts- und -austrittsöffnungen versehene. im übrigen schalldichte Räume, welche durch eine mit einer regulierbaren Offnung ausgestattete Wand von einander getrennt sind. EMI1.4 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Device for measuring the relative strengths of noises and tones, characterized by two openings for sound entry and exit. otherwise soundproof rooms, which are separated from each other by a wall equipped with an adjustable opening. EMI1.4 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT38770D 1909-01-06 1909-01-06 Device for measuring the relative strengths of noises and tones. AT38770B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT38770T 1909-01-06

Publications (1)

Publication Number Publication Date
AT38770B true AT38770B (en) 1909-09-10

Family

ID=3556639

Family Applications (1)

Application Number Title Priority Date Filing Date
AT38770D AT38770B (en) 1909-01-06 1909-01-06 Device for measuring the relative strengths of noises and tones.

Country Status (1)

Country Link
AT (1) AT38770B (en)

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