DE403728C - Device for generating or reproducing sounds - Google Patents
Device for generating or reproducing soundsInfo
- Publication number
- DE403728C DE403728C DES63041D DES0063041D DE403728C DE 403728 C DE403728 C DE 403728C DE S63041 D DES63041 D DE S63041D DE S0063041 D DES0063041 D DE S0063041D DE 403728 C DE403728 C DE 403728C
- Authority
- DE
- Germany
- Prior art keywords
- membrane
- cone
- wire
- generating
- ring
- 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
Links
- 239000012528 membrane Substances 0.000 claims description 21
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 241000237942 Conidae Species 0.000 claims 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/046—Construction
- H04R9/047—Construction in which the windings of the moving coil lay in the same plane
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
- H04R7/14—Non-planar diaphragms or cones corrugated, pleated or ribbed
Description
In dem Hauptpatent hat die Erfinderin eine Vorrichtung zur Erzeugung von L'äuten beschrieben, die im wesentlichen aus einer mit einer stromleitenden Wicklung ein Ganzes bildenden schwingenden Membran besteht. Die vorliegende Erfindung betrifft eine Verbesserung dieser Membran, mittels deren bei einer Maximalstärke des erzeugten Tones die genaue Klangfarbe erzielt wird.In the main patent, the inventor has described a device for the production of L'äuten, which essentially consists of a vibrating membrane that forms a whole with a conductive winding. The present invention relates to an improvement of this membrane, by means of which in a maximum strength of the generated tone the exact timbre is achieved.
Die Verschiebungen der Membran, die von der Ordnung von Hundertsteln Millimetern sind, müssen ohne Dämpfung erfolgen, aber andererseits darf die Membran nicht unter der Wirkung der großen Amplituden in eigentliche Schwingungen geraten und so eine Resonanzerscheinung zeigen.The displacements of the diaphragm, on the order of hundredths of a millimeter must be done without damping, but on the other hand the membrane must not be under the effect of the large amplitudes get into actual oscillations and so on Show resonance.
Zu diesem Zweck ordnet man die Membran nach der Anmeldung auf Keilen an und gibt ihr eine genau bestimmte Spannung.For this purpose, the membrane is arranged on wedges after registration and given her a precisely determined tension.
Auf der Zeichnung ist eine beispielsweise Ausführungsform dargestellt,An example embodiment is shown in the drawing,
Abb. ι zeigt den Querschnitt eines Keils. Abb. 2 zeigt die Anordnung der Keile auf dem Kegel.Fig. Ι shows the cross section of a wedge. Fig. 2 shows the arrangement of the wedges the cone.
Abb. 3 ist ein Achsialschnirt durch Kegel und Membran.Fig. 3 is an axial section through the cone and membrane.
Abb. 4 zeigt schematisch die Anschlußstellen der Leitungsdrähte an die Membran.Fig. 4 shows schematically the connection points of the lead wires to the membrane.
Die Membran wird über Keile α gespannt. Diese Keile sind elastische Ringe von dreieckigem Querschnitt mit oberem spitzen Winkel (s. Abb. 1). Die Ringe sind konzentrisch zur Achse des Kegels b und in gleichen Abständen voneinander angeordnet, so daß sie die Membran in der Weise stützen- wie der Steg die Violinsaiten (Abb. 2 und 3). Die auf den Keilkanten aufliegende Membran leistet nur einen minimalen Widerstand gegen sehr schwache Verschiebungen. Der Widerstand; wächst aber sehr schnell mit der Amplitude der Schwingung. Die Dicke der Keile kann sich von der Spitze nach der Grundfläche des Kegels zu ändern. Der Abstand der einzelnen Keile voneinander ist je nach der Gesamtoberfläche der Membran verschieden.The membrane is stretched over α wedges. These wedges are elastic rings of triangular cross-section with an acute angle at the top (see Fig. 1). The rings are arranged concentrically to the axis of the cone b and at equal distances from one another, so that they support the membrane in the same way as the bridge supports the violin strings (Figs. 2 and 3). The membrane resting on the edge of the wedge offers only a minimal resistance to very slight displacement. The resistance; but grows very quickly with the amplitude of the oscillation. The thickness of the wedges can change from the tip to the base of the cone. The distance between the individual wedges is different depending on the total surface area of the membrane.
Die Membran sitzt mit ihrem äußeren Rand auf einem metallischen Ring c, der an der Grundfläche b des Kegels auf den Magnetpol aufgeschraubt wird. Mit Hilfe dieses Ringes kann man die Membran mit jeder gewünschten Empfindlichkeit über den elastischen Keilen einstellen. Die Feststellung desThe outer edge of the membrane sits on a metallic ring c, which is screwed onto the magnetic pole at the base b of the cone. With the help of this ring you can adjust the membrane with any desired sensitivity via the elastic wedges. The finding of the
Ringes c nach der Einstellung kann in einfacher Weise mittels eines Metallfingers d bewirkt werden, der sich unter der Wirkung einer Schraube e oder in anderer Weise auf den Ring auflegt (Abb. 3).Ring c after adjustment can easily be effected by means of a metal finger d , which rests on the ring under the action of a screw e or in some other way (Fig. 3).
Die Drahtverbindung, die die Membran C mit den zur Stromquelle führenden Drähten verbindet, ist der schwache Punkt der schwingenden Membran. Drähte von sehr geringem Durchmesser aus Aluminium oder Magnesium leisten zwar einen sehr geringen mechaniscHen Widerstand unter der Wirkung der Schwingungen von großer Amplitude, die die Membran beim Durchgang stärkerer Ströme ausführt, zerbrechen sie aber leicht.The wire connection that connects the diaphragm C to the wires leading to the power source is the weak point of the vibrating diaphragm. Wires of very small diameter made of aluminum or magnesium indeed offer very little mechanical resistance under the effect of the vibrations of great amplitude which the membrane executes when stronger currents pass, but they break easily.
Man kann diesem Übelstand abhelfen, indem man den Eintritt und Austritt des Stromes in die Membran in folgender Weise gestaltet: One can remedy this problem by allowing the stream to enter and exit shaped into the membrane in the following way:
Die drei oder vier ersten Drahtwindungen m sind von der Isolierung befreit und an drei oder mehr Stellen durch Kupferbänder g1, g2, gz verbunden. Die betreffenden Stellen sind durch biegsame Leiter h1, A2, h3 an die Telephonleitung angeschlossen (Abb. 4). Das Ganze stellt also eine dicke, kurzgeschlossene Windung dar, die nicht schwingt.The three or four first wire windings m are freed from the insulation and connected at three or more points by copper strips g 1 , g 2 , g z . The points concerned are connected to the telephone line by flexible conductors h 1 , A 2 , h 3 (Fig. 4). So the whole thing is a thick, short-circuited turn that does not oscillate.
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR558037T | 1922-02-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE403728C true DE403728C (en) | 1924-10-08 |
Family
ID=31898014
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES59483D Expired DE394012C (en) | 1922-02-17 | 1922-04-14 | Device that can be used as a sound transmitter or receiver in air or water |
DES63041D Expired DE403728C (en) | 1922-02-17 | 1923-06-07 | Device for generating or reproducing sounds |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES59483D Expired DE394012C (en) | 1922-02-17 | 1922-04-14 | Device that can be used as a sound transmitter or receiver in air or water |
Country Status (5)
Country | Link |
---|---|
US (2) | US1523262A (en) |
DE (2) | DE394012C (en) |
FR (2) | FR558037A (en) |
GB (2) | GB193339A (en) |
NL (1) | NL12262C (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3141071A (en) * | 1960-07-18 | 1964-07-14 | Rosen Alfred H | Full range electroacoustic transducers |
GB1563511A (en) * | 1976-03-19 | 1980-03-26 | Harwood H | Diaphragms for electroacoustic transducers |
NL8102572A (en) * | 1981-05-26 | 1982-12-16 | Philips Nv | BAND TYPE ELECTROACOUSTIC CONVERTER WITH LOW DISTORTION AND IMPROVED SENSITIVITY. |
-
1922
- 1922-02-17 FR FR558037D patent/FR558037A/en not_active Expired
- 1922-04-12 US US551802A patent/US1523262A/en not_active Expired - Lifetime
- 1922-04-14 DE DES59483D patent/DE394012C/en not_active Expired
- 1922-04-20 NL NL21892A patent/NL12262C/xx active
- 1922-06-30 GB GB18048/22A patent/GB193339A/en not_active Expired
- 1922-07-05 FR FR26807D patent/FR26807E/en not_active Expired
-
1923
- 1923-06-05 GB GB14761/23A patent/GB200490A/en not_active Expired
- 1923-06-07 DE DES63041D patent/DE403728C/en not_active Expired
- 1923-06-12 US US644985A patent/US1538319A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR558037A (en) | 1923-08-20 |
US1538319A (en) | 1925-05-19 |
FR26807E (en) | 1924-03-15 |
DE394012C (en) | 1924-04-11 |
NL12262C (en) | 1924-12-15 |
US1523262A (en) | 1925-01-13 |
GB193339A (en) | 1923-02-22 |
GB200490A (en) | 1924-07-10 |
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