DE952823C - Attachment of carbon electrodes to metal or plastic membranes for carbon core microphones - Google Patents

Attachment of carbon electrodes to metal or plastic membranes for carbon core microphones

Info

Publication number
DE952823C
DE952823C DET8723A DET0008723A DE952823C DE 952823 C DE952823 C DE 952823C DE T8723 A DET8723 A DE T8723A DE T0008723 A DET0008723 A DE T0008723A DE 952823 C DE952823 C DE 952823C
Authority
DE
Germany
Prior art keywords
carbon
attachment
metal
microphones
electrodes
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
DET8723A
Other languages
German (de)
Inventor
Dipl-Ing Walter Gademann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DET8723A priority Critical patent/DE952823C/en
Application granted granted Critical
Publication of DE952823C publication Critical patent/DE952823C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R21/00—Variable-resistance transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)

Description

Bei den bekannten Befestigungsarten von Kohleelektroden an Metall- oder Kunststoffmembranen für Kolilekörnermikrofone war es üblich, die Verbindung durch Nieten oder leitendes Kleben an der Stirnfläche der Kohleelektrode vorzunehmen. Diese Verbindungsarten bedingen eine Vollelektrode.With the known types of attachment of carbon electrodes to metal or plastic diaphragms for colile grain microphones it was common to make the connection by riveting or conductive gluing on the end face of the carbon electrode. These types of connection require a full electrode.

Das hohe Gewicht einer Vollelektrode wirkt sich jedoch nachteilig auf die Schwingungseigenschaften des Systems aus.However, the high weight of a full electrode has a disadvantageous effect on the vibration properties of the system.

Im folgenden wird eine andere Befestigungsart einer Kohleelektrode an einer Metall- oder Kunststoffmembran beschrieben, bei der hohle Kohleelektroden verwendet werden, die durch ihr geringeres Gewicht die Schwingungseigenschaften des Systems weniger nachteilig beeinflussen. Außerdem können bei dieser Art der Befestigung Fabrikationstoleranzen dem Membran und der Kohleelektrode bei der Montage nachträglich ausgeglichen werden.Another way of attaching a carbon electrode is described below described on a metal or plastic membrane, with the hollow carbon electrodes are used, which due to their lower weight, the vibration properties affect the system less adversely. In addition, this type of Fastening manufacturing tolerances to the membrane and the carbon electrode during assembly can be compensated retrospectively.

Die Erfindung ist an Hand der Fig. I_ und II erläutert, die zwei Ausführungsformen im Schnitt zeigen. Die Befestigung einer hohlen Kohleelektrode i an dem an sich bekannten kragenartig ausgeführten Mittelteile der Membran erfolgt erfindungsgemäß dadurch, daß ein ringförmiges federndes Glied 3 vorgesehen ist, durch welches der Mittelteil 2 der Membran innen (Fig. I) oder _ußen (Fig.II) gegen den Mantel der becherförmigen Kohleelektrode i gedrückt wird. Hierdurch werden sowohl die Membran und die Kohleelektrode mechanisch miteinander verbunden; als auch ein guter Kontakt zwischen diesen Teilen erzielt. Außerdem kann die Abmessung H in Fig. I bei der Montage genau eingestellt werden.The invention is explained with reference to FIGS. I_ and II, the two embodiments show in section. The attachment of a hollow carbon electrode i to the per se known, collar-like central parts of the membrane are carried out according to the invention in that an annular resilient member 3 is provided through which the Middle part 2 of the membrane inside (Fig. I) or _ußen (Fig.II) against the jacket of the cup-shaped carbon electrode i is pressed. This causes both the membrane and the carbon electrode mechanically connected to one another; as well as a good contact achieved between these parts. In addition, the dimension H in FIG Assembly can be set precisely.

Claims (1)

PATFINTAIVSPRUCH: Befestigung von Kohleelektroden an Metall-oder Kunststoffmembranen für Kohlekörnermikrofone, dadurch gekennzeichnet, daß ein ringförmiges federndes Glied vorgesehen ist, durch welches der mittlere kragenartig ausgebildete Teil der Membran innen oder außen gegen den Mantel der becherförmigen Kohleelektrode gedrückt wird. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 884 825; österreichische Patentschrift Nr. 173 165; schweizerische Patentschrift Nr. 277 o63.PATFINTAIVSPRUCH: Attachment of carbon electrodes to metal or plastic diaphragms for carbon grain microphones, characterized in that an annular resilient member is provided, through which the middle, collar-like part of the diaphragm is pressed inside or outside against the jacket of the cup-shaped carbon electrode. Documents considered: German Patent No. 884 825; Austrian Patent No. 173 165; Swiss patent specification No. 277 063.
DET8723A 1953-12-02 1953-12-02 Attachment of carbon electrodes to metal or plastic membranes for carbon core microphones Expired DE952823C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DET8723A DE952823C (en) 1953-12-02 1953-12-02 Attachment of carbon electrodes to metal or plastic membranes for carbon core microphones

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET8723A DE952823C (en) 1953-12-02 1953-12-02 Attachment of carbon electrodes to metal or plastic membranes for carbon core microphones

Publications (1)

Publication Number Publication Date
DE952823C true DE952823C (en) 1956-11-22

Family

ID=7545921

Family Applications (1)

Application Number Title Priority Date Filing Date
DET8723A Expired DE952823C (en) 1953-12-02 1953-12-02 Attachment of carbon electrodes to metal or plastic membranes for carbon core microphones

Country Status (1)

Country Link
DE (1) DE952823C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1166268B (en) * 1961-07-27 1964-03-26 Krone Kg Membrane for carbon microphones

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH277063A (en) * 1948-04-23 1951-08-15 Standard Telephon & Radio Ag Electroacoustic converter.
AT173165B (en) * 1952-11-25
DE884825C (en) * 1937-10-21 1953-07-30 Lorenz C Ag Microphone capsule for use in moisture-filled rooms

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT173165B (en) * 1952-11-25
DE884825C (en) * 1937-10-21 1953-07-30 Lorenz C Ag Microphone capsule for use in moisture-filled rooms
CH277063A (en) * 1948-04-23 1951-08-15 Standard Telephon & Radio Ag Electroacoustic converter.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1166268B (en) * 1961-07-27 1964-03-26 Krone Kg Membrane for carbon microphones

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