DE121959C - - Google Patents
Info
- Publication number
- DE121959C DE121959C DENDAT121959D DE121959DA DE121959C DE 121959 C DE121959 C DE 121959C DE NDAT121959 D DENDAT121959 D DE NDAT121959D DE 121959D A DE121959D A DE 121959DA DE 121959 C DE121959 C DE 121959C
- Authority
- DE
- Germany
- Prior art keywords
- contact
- aluminum
- graphite
- electrical
- resistance
- 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/41—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
- H01L29/417—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions carrying the current to be rectified, amplified or switched
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Conductive Materials (AREA)
- Adjustable Resistors (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Die Erfindung beruht auf der bekannten Beobachtung, dafs die Berührungsstelle leitender Körper unter Einwirkung elektrischer Wellen ihren Widerstand ändert. Solche Berührungswiderstände . hat man zum Nachweis elektrischer Störungen, bezw. zur Herstellung eines Empfangsapparates für elektrische Schwingungen benutzt.The invention is based on the known observation that the point of contact is more conductive Body changes its resistance under the influence of electrical waves. Such contact resistances. one has to prove electrical Disturbances, respectively. for the production of a receiving apparatus for electrical vibrations used.
Am vortheilhaftesten hat sich nach den Versuchen des Erfinders Aluminium in Verbindung mit Graphit erwiesen.According to the inventor's experiments, aluminum has been found to be the most advantageous in combination proven with graphite.
In der Zeichnung ist eine derartige Anordnung dargestellt.Such an arrangement is shown in the drawing.
A A sind die Aluminiumstäbe, gegen welche das Graphitstäbchen C durch eine Feder F regelbar angedrückt wird. Die Batterie B wird durch diesen Berührungswiderstand und die primäre Spule P geschlossen, während ein . secundärer Kreis durch die Spule S und das Telephon T gebildet wird. AA are the aluminum rods against which the graphite rod C is pressed in a controllable manner by a spring F. The battery B is closed by this touch resistor and the primary coil P while on. secondary circuit is formed by the coil S and the telephone T.
Verbindet man nun z. B. den Berührungswiderstand mit der Luftleitung und der Erdleitung einer Empfangsstation für Funkentelegraphie, so hört man selbst auf beträchtliche Entfernungen das Spielen des Inductoriums auf der Abgabestation.If you now connect z. B. the contact resistance with the air line and the earth line a receiving station for radio telegraphy, one hears even a considerable amount Distances playing the inductorium on the delivery station.
Man erhält so einen Empfangsapparat, welcher vor dem gebräuchlichen Fritter unter Anderem den Vorzug hat, keinen Klopfer zu benöthigen.This gives a receiving apparatus which is placed in front of the common fritter Another has the advantage of not requiring a knocker.
Die Anordnung dieser Berührungswiderstände läfst sich in verschiedene Ausführungsformen bringen, ohne dafs es nöthig wäre, dieselben des Weiteren zu erläutern.The arrangement of these contact resistors can be in various embodiments without it being necessary to explain them further.
Immer aber werden die Vorzüge des Apparates, in jeder Stellung und ohne weitere Hülfsapparate (Klopfer, Relais u. s. w.) leicht und sicher zu wirken, hervortreten.But always the advantages of the apparatus, in every position and without further auxiliary apparatus (Knockers, relays, etc.) to work easily and safely, to emerge.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE121959T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE121959C true DE121959C (en) |
Family
ID=5657153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT121959D Active DE121959C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE121959C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5793830A (en) * | 1995-07-03 | 1998-08-11 | General Electric Company | Metal alloy coating for mitigation of stress corrosion cracking of metal components in high-temperature water |
-
0
- DE DENDAT121959D patent/DE121959C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5793830A (en) * | 1995-07-03 | 1998-08-11 | General Electric Company | Metal alloy coating for mitigation of stress corrosion cracking of metal components in high-temperature water |
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