DE1860216U - ELECTRIC RESISTANCE TESTER. - Google Patents
ELECTRIC RESISTANCE TESTER.Info
- Publication number
- DE1860216U DE1860216U DEM41827U DEM0041827U DE1860216U DE 1860216 U DE1860216 U DE 1860216U DE M41827 U DEM41827 U DE M41827U DE M0041827 U DEM0041827 U DE M0041827U DE 1860216 U DE1860216 U DE 1860216U
- Authority
- DE
- Germany
- Prior art keywords
- hollow cylinder
- incandescent lamp
- battery
- operated
- pushbutton switch
- 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
- 239000000523 sample Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 2
- 241000270728 Alligator Species 0.000 description 1
- 240000005561 Musa balbisiana Species 0.000 description 1
- 235000018290 Musa x paradisiaca Nutrition 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/44—Testing lamps
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Leads Or Probes (AREA)
Description
Elektrisches Widerstandsprüfgerät. Electrical resistance tester.
Beschreibung zur Gebrauchsmusteranmeldung.Description of the utility model registration.
Mit nachfolgend beschriebenem, einfachen Prüfgerät Kennen Widerstände
unter 1 Ohm, wie sie oft auch als unzulässige
Das zu schützende Prüfgerät geht von folgenden Voraussetzungen aus : Eine Glühlampe mit geringer Betriebsspannung (etwa 1 bis 1,5 Volt) jedoch mit möglichst hohem Strom (etwa 0,8 bis 1 A) dienb zur Anzeige und wird in Serie mit dem Stromkreis Batterie-zu prüfender Widerstand geschaltet. Durch die niedrige Spannung und den hohen Strom arbeitet die ganze Anordnung sehr niederohmig. Deswegen brennt die Glühlampe bereits merklich dunkler, wenn der im Stromkreis liegende zu prüfende Widerstand nur Bruchteile von einem Ohm hat.The test device to be protected is based on the following requirements : An incandescent lamp with a low operating voltage (approx. 1 to 1.5 volts) but with The highest possible current (about 0.8 to 1 A) is used for display and is in series with The battery-tested resistor is connected to the circuit. Because of the low voltage and the high current works the whole arrangement very low resistance. That's why it burns the incandescent lamp already noticeably darker when the one in the circuit to be tested Resistance is only a fraction of an ohm.
Um nun diesen Helligkeitsunterschied der Glühlampe feststellen zu
können, liegt noch ein Tastschalter parallel zu dem zu prüfenden Widerstand, mit
dem letzterer kurzgeschlossen
Das Prüfgerät selbst hat folgende technisch-körperlichen Merkmale
(siehe Abbildung) : In einem zylindrischen Hohlkörper aus Isoliermaterial 1 ist
am oberen Ende ein kegelförmiges Isolierstück 2 eingelassen, das in einer metallenen
Prüfspitze 3 endet. Unterhalb des kegelförmigen Isolierstückes ist in dem Hohlkörper
ein Fenster 4 vorgesehen, durch welches die dahinter angebrachte sofittenförmige
Glühlampe 5 beobachtet werden kann. Gegenüber dem Fenster ist in dem Hohlkörper
ein Tastschalter 6 einge-
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM41827U DE1860216U (en) | 1962-05-28 | 1962-05-28 | ELECTRIC RESISTANCE TESTER. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM41827U DE1860216U (en) | 1962-05-28 | 1962-05-28 | ELECTRIC RESISTANCE TESTER. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1860216U true DE1860216U (en) | 1962-10-18 |
Family
ID=33037544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEM41827U Expired DE1860216U (en) | 1962-05-28 | 1962-05-28 | ELECTRIC RESISTANCE TESTER. |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1860216U (en) |
-
1962
- 1962-05-28 DE DEM41827U patent/DE1860216U/en not_active Expired
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