DE345453C - - Google Patents
Info
- Publication number
- DE345453C DE345453C DENDAT345453D DE345453DA DE345453C DE 345453 C DE345453 C DE 345453C DE NDAT345453 D DENDAT345453 D DE NDAT345453D DE 345453D A DE345453D A DE 345453DA DE 345453 C DE345453 C DE 345453C
- Authority
- DE
- Germany
- Prior art keywords
- tuning fork
- receiver
- sound
- box
- plane
- 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.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/72—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using ultrasonic, sonic or infrasonic waves
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Description
Schallempfänger mit einem zwischen den Zinken einer Stimmgabel angeordneten Mikrophon sind bereits bekannt. Der neue Schallempfänger ist dadurch gekennzeichnet, daß zwei Scheiben mit der Stimmgabel so verbunden sind, daß die Ebene der vorderen Scheibe den Brennpunkt eines vorderen parabolischen Reflektors des Empfängerkastens enthält, während der Brennpunkt eines an der to inneren Wandung des Empfängerkastens angeordneten parabolischen Reflektors in der Ebene der zweiten Scheibe liegt.Sound receiver with a microphone arranged between the prongs of a tuning fork are already known. The new sound receiver is characterized in that two discs with the tuning fork so connected are that the plane of the front disk is the focal point of a front parabolic Contains reflector of the receiver box, while the focal point is arranged on the inner wall of the receiver box parabolic reflector lies in the plane of the second disc.
Der Erfindungsgegenstand ist in der Zeichnung in einer beispielsweisen Ausführungsform dargestellt. Es zeigt:The subject of the invention is shown in the drawing in an exemplary embodiment shown. It shows:
Abb. ι eine Stimmgabel in Verbindung mit einem Mikrophon,Fig. Ι a tuning fork in connection with a microphone,
Abb. 2 einen Schnitt durch den Empfängerkasten mit der Stimmgabel, Abb. 3 eine Vorderansicht zu Abb. 2.Fig. 2 a section through the receiver box with the tuning fork, Fig. 3 is a front view of Fig. 2.
Es wird ein schwerer Empfängerkasten a verwendet, der an der vorderen Seite mit einer nach innen verlaufenden parabolischen Fläche U1 versehen ist. Hinter dieser Fläche hat der Kasten eine zylindrische Ausbohrung a2, während die hintere Wand a., so gestaltet ist, daß sie die aufgefangenen Wellen gegen die rückwärtige Scheibe zurückwirft. Die Stimmgabel l·, die auf die verlangte Frequenz abgestimmt ist, hat einen geeigneten Stiel Jb1, der an der Wand des Kastens \ mittels Schraubenmuttern o. dgl. in senkrech- j ter Lage befestigt ist. Die Muttern können j versenkt sein. Die äußeren Enden der Stimm- ι gabel b sind durchbohrt und tragen Scheiben c aus Mika o. dgl. Isolierende Büchsen d sind sn die Bohrung der Scheiben eingepaßt. Die Gewindebolzen e halten das Mikrophon zwischen den Zinken der Stimmgabel.A heavy receiver box a is used, which is provided on the front side with an inwardly extending parabolic surface U 1 . Behind this surface, the box has a cylindrical bore a 2 , while the rear wall a., Is designed so that it throws the captured waves back against the rear disc. The tuning fork length, which is tuned to the required frequency has is a suitable handle Jb 1, the o on the wall of the box \ means of screws nuts. Like. Senkrech- in j th position fixed. The nuts can be countersunk. The outer ends of the tuning fork b are drilled through and carry disks c made of mica or the like. Insulating bushings d are fitted sn the bore of the disks. The threaded bolts e hold the microphone between the prongs of the tuning fork.
Zwischen den Scheiben c und den Schrau- 4" benmuttern sind Unterlagsscheiben g aus Mika angeordnet. Zur Einführung der Leitungsdrähte i, i dient nötigenfalls, wie z. B. bei Unterwasserschallempfängern, eine Büchse /. Washer g made of mica are arranged between the washers c and the screw nuts. If necessary, a bushing / serves to insert the lead wires i, i, for example in the case of underwater sound receivers.
Der Empfänger kasten wird verschieden eingerichtet je nachdem, ob es sich um Unterwasserempfänger auf Schiffen oder um Schallempfänger für andere Zwecke handelt. An Stelle der Stimmgabel kann man auch abgestimmte Drähte verwenden. ,The receiver box is set up differently depending on whether they are underwater receivers on ships or sound receivers for other purposes. Instead of the tuning fork, you can also use matched wires. ,
Nach der Erfindung kann man Empfänger herstellen, die für Schallwellen bestimmter Frequenz besonders empfindlich sind.According to the invention, receivers can be produced which are specific for sound waves Frequency are particularly sensitive.
Der-Apparat kann auch zur Aufnahme des Echos verwendet werden, um die Entdeckung von Eisbergen zu ermöglichen. Ferner ist es für die Bestimmung der Schallrichtung von Wert.The apparatus can also be used to record the echo in order to make the discovery of icebergs to enable. It is also used to determine the direction of sound from Value.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB299019A GB144345A (en) | 1919-02-07 | 1919-02-07 | Receiving or collecting devices or mechanism for sound waves or vibrations |
Publications (1)
Publication Number | Publication Date |
---|---|
DE345453C true DE345453C (en) |
Family
ID=9749822
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT345453D Active DE345453C (en) | 1919-02-07 |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE345453C (en) |
GB (1) | GB144345A (en) |
-
0
- DE DENDAT345453D patent/DE345453C/de active Active
-
1919
- 1919-02-07 GB GB299019A patent/GB144345A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB144345A (en) | 1920-06-07 |
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