DE900428C - Winding for underwater sound transducers - Google Patents

Winding for underwater sound transducers

Info

Publication number
DE900428C
DE900428C DEE2545D DEE0002545D DE900428C DE 900428 C DE900428 C DE 900428C DE E2545 D DEE2545 D DE E2545D DE E0002545 D DEE0002545 D DE E0002545D DE 900428 C DE900428 C DE 900428C
Authority
DE
Germany
Prior art keywords
winding
underwater sound
sound transducers
transducers
arrangement according
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
DEE2545D
Other languages
German (de)
Inventor
Dr Dr H C Heinrich Hecht
Dr Ulrich John
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.)
ELAC Electroacustic GmbH
Original Assignee
ELAC Electroacustic GmbH
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 ELAC Electroacustic GmbH filed Critical ELAC Electroacustic GmbH
Priority to DEE2545D priority Critical patent/DE900428C/en
Application granted granted Critical
Publication of DE900428C publication Critical patent/DE900428C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/08—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with magnetostriction

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Description

Bei den bekannten Unterwasserschallschwingern, und zwar vorzugsweiise bei( dien nach dem magnetostrikbiven Prilnzi'p arbeitenden Unterwassenschallschwingern, treten vielfach die Wicklungen unmittelbar mit dem Seewasser in Berührung. Bei, derartigen.Schwingern, hat sieh nun der Nachteil herausgestellt, daß die Dämpfung der Schwiingungsgeblilde und infolgedessen der Wirkungsgrad nicht konstant sind. Nachdem nämlich Jve Schwinger mit einem besten Wirkungsgrad hergestellt sind, zeigen; sie, sobald sie ins. Wasser gelegt werden, ein allmähliches Zunehmen der Dämpfung. Dies liegt daran, daß die Oberfläche desi Wicklungsdrahtes unter dem Einfluß des! eindringendem Seewas@siers gewilsse Veränderungen durchmacht, welche die Dämpfung vergrößern, und zwar einen Zuwachs an reiner Verlustdämpfung bewirken.With the known underwater sound transducers, preferably with (serve according to the magnetostrictive prilnzi'p working underwater sound transducers, often the windings come into direct contact with the seawater. At, Such.Schwingern has now shown the disadvantage that the damping the oscillation structures and, as a result, the efficiency are not constant. Namely, after Jve transducers are manufactured with the best efficiency, show; as soon as she ins. Water, a gradual increase in damping. This is because the surface of the winding wire is under the influence of the! penetrating seawater @ sier undergoes certain changes, which the attenuation increase, and indeed cause an increase in pure loss attenuation.

Gemäß der Erfindung wird die nachträgliche Erhöhung der Verlustdämpfung eines. mit Wicklungen versehenen Unterwaseerschallschwingers dadurch vermieden, daß in der unmittelbaren Nähe der Wicklung schallfeldzerstörende Mittel angeordhet sind.According to the invention, the subsequent increase in loss attenuation one. underwater sound transducers provided with windings thereby avoided, that arranged in the immediate vicinity of the winding sound field destroying means are.

Gemäß der Erfindung werden die schallfeldzerstörenden Mittel, welche aus irgendwelchen luftr halbigen, porösen Stoffen:, benspmelswedlse Schaumgummi, bestehen, in dem Schwinger angeordnet, bevor er mit dem Seewasser in, Berührung kommt. Es hab sich ergeben, da:B hierdurch die erwähnten Mängel vermieden werden.According to the invention, the sound field destroying means, which from any air-drained, porous materials :, benspmelswedlse foam rubber, exist, arranged in the transducer before it comes into contact with the seawater comes. It turned out that: B this avoids the deficiencies mentioned.

In der Zeichnung ist eine Ausführungsform der Anordnung nach der Erfindung beispielsweise dargestellt. i bedeutet einen an siech bekannten: Unrterwasiserscha.llsender oder -empfänger aus magnetostriktivem Stoff, beispielsweise Nickel, in dem zwei Aussparungen a und 3 vorgesehen sind zur Aufnahme einer Wicklung q.. Erfindungsgemäß sind zwischen einzelnen: Windungen der Drahtwicklung schallfeldzerstörende Stoffe 5, 6, 7 '.ein Gesitalt von Schaumgummistückchen eingefügt.In the drawing is an embodiment of the arrangement according to the invention for example shown. i means a well-known: Unrterwasiserscha.llsender or receiver made of magnetostrictive material such as nickel in which two Recesses a and 3 are provided for receiving a winding q .. According to the invention are between the individual: turns of the wire winding substances that destroy sound fields 5, 6, 7 '. A shape of foam rubber pieces inserted.

Claims (1)

PATENTANSPRÜCHE: i. Wicklung für Unterwassertschallschwinger, vorzugsweilse magnetositlriktive Unterwvasiserschallsichwinger, dadurch gtAennzeichnet, daß in ihrer unmittelbaren Nähe schallfeldzerstörende Miiittel angeordnet sind. a. Anordnung nach Anspruch i, dadurch gekennzeichnet, daß die schallfeldzers.törenden Mittel ganz oder teilweilse zwilschen den eimzelnem: Windungen angeordnet sind. 3. Anordnung nach Anspruch i oder z, gekennzeichnet durch die Anwendung von Schaumgummi. PATENT CLAIMS: i. Winding for underwater sound transducers, preferably magneto-restrictive underwater sound transducers, characterized in that sound field-destroying means are arranged in their immediate vicinity. a. Arrangement according to claim i, characterized in that the sound field disruptive means are wholly or partly arranged between the individual windings. 3. Arrangement according to claim i or z, characterized by the use of foam rubber.
DEE2545D 1937-10-15 1937-10-15 Winding for underwater sound transducers Expired DE900428C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEE2545D DE900428C (en) 1937-10-15 1937-10-15 Winding for underwater sound transducers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE2545D DE900428C (en) 1937-10-15 1937-10-15 Winding for underwater sound transducers

Publications (1)

Publication Number Publication Date
DE900428C true DE900428C (en) 1953-12-28

Family

ID=7065556

Family Applications (1)

Application Number Title Priority Date Filing Date
DEE2545D Expired DE900428C (en) 1937-10-15 1937-10-15 Winding for underwater sound transducers

Country Status (1)

Country Link
DE (1) DE900428C (en)

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