GB708892A - Improvements in or relating to circuit arrangements for the measurement of very small electric conducting values - Google Patents
Improvements in or relating to circuit arrangements for the measurement of very small electric conducting valuesInfo
- Publication number
- GB708892A GB708892A GB17095/52A GB1709552A GB708892A GB 708892 A GB708892 A GB 708892A GB 17095/52 A GB17095/52 A GB 17095/52A GB 1709552 A GB1709552 A GB 1709552A GB 708892 A GB708892 A GB 708892A
- Authority
- GB
- United Kingdom
- Prior art keywords
- condenser
- source
- switch
- plate
- earthed
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/30—Structural combination of electric measuring instruments with basic electronic circuits, e.g. with amplifier
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
708,892. Voltage and resistance measurements. LUFTTECHNISCHE GES. July 7, 1952 [July 6, 1951], No. 17095/52. Class 37. The resistance between the plates of a condenser is measured by charging from a source of high potential in series with a second condenser and measuring the alteration of the charge on the first condenser when the charging potential is removed. Ionization of atmospheric air is measured by passing the air between the plates 1a, 1b of a measuring condenser 1 in the direction of the arrow. The lower plate 1 a is earthed and potential is applied to the upper plate 1b from a source 2 in series with a condenser 3 and a two-way switch 6, which has its upper contact 6b connected to the source 2 and its lower contact 6a earthed. Ganged with the switch 6 is a switch 4 which in its lower position connects the plate 1b through a conductor 5 to a measuring instrument (not shown). The source 2 is earthed at its centre and a reversing switch 7 enables the polarity of the voltage applied to the plate 1 b to be reversed.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE708892X | 1951-07-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB708892A true GB708892A (en) | 1954-05-12 |
Family
ID=6617733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB17095/52A Expired GB708892A (en) | 1951-07-06 | 1952-07-07 | Improvements in or relating to circuit arrangements for the measurement of very small electric conducting values |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB708892A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3222523A (en) * | 1961-05-19 | 1965-12-07 | Landis & Gyr Ag | Ionization chamber type radiation dosimeter |
-
1952
- 1952-07-07 GB GB17095/52A patent/GB708892A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3222523A (en) * | 1961-05-19 | 1965-12-07 | Landis & Gyr Ag | Ionization chamber type radiation dosimeter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2659861A (en) | Apparatus for electrical thickness measurement | |
| GB708892A (en) | Improvements in or relating to circuit arrangements for the measurement of very small electric conducting values | |
| GB804323A (en) | Improvements relating to the detection of surface cracks in electrically conducting materials | |
| US2764737A (en) | Peak voltage meter | |
| GB731133A (en) | Means for measurement by electrical condenser of characteristics and conditions of material | |
| GB797399A (en) | Improvements in or relating to apparatus for making electrical measurements upon coated conductors | |
| US2872642A (en) | Measurement of very small electric potential changes | |
| GB771459A (en) | Electrical charge transfer system | |
| GB858193A (en) | Improvements in or relating to electrical apparatus for the remote reading of meters | |
| GB636048A (en) | Improvements in electrical measuring methods and apparatus | |
| GB643336A (en) | Improvements in or relating to apparatus for electrolytic investigation of solutions | |
| GB647990A (en) | Improvements in or relating to apparatus for use in determining the moisture contentof textile materials | |
| GB678975A (en) | Electrical insulation resistance measuring apparatus | |
| FR972618A (en) | Improvements in electrical detection and identification devices for electrically conductive or magnetic masses | |
| GB602738A (en) | Improvements relating to electrical measuring instruments | |
| GB634912A (en) | Improvements in electric battery testing apparatus | |
| GB580772A (en) | Improved means for testing sparking plugs in situ | |
| FR933043A (en) | Improvements to self-balancing electrical, measuring, recording, indicating and control devices | |
| GB680914A (en) | Improvements in or relating to instruments for testing the polarity of current in anelectrical circuit | |
| CA494689A (en) | Electrical precipitator including an electrode washing device | |
| GB724769A (en) | Improvements in or relating to devices for measuring very weak currents | |
| GB804724A (en) | Improvements in or relating to devices for measuring pressures | |
| AU131969B2 (en) | Improvements in electrical apparatus for measuring electrostatic voltage | |
| GB951482A (en) | Improved circuit arrangement responsive to loss in dielectric material | |
| GB587459A (en) | Improvements in or relating to electric measuring systems |