GB654649A - Improvements in or relating to electrical devices for measuring small intervals of time - Google Patents
Improvements in or relating to electrical devices for measuring small intervals of timeInfo
- Publication number
- GB654649A GB654649A GB1038047A GB1038047A GB654649A GB 654649 A GB654649 A GB 654649A GB 1038047 A GB1038047 A GB 1038047A GB 1038047 A GB1038047 A GB 1038047A GB 654649 A GB654649 A GB 654649A
- Authority
- GB
- United Kingdom
- Prior art keywords
- condenser
- current
- circuit
- time
- small intervals
- 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
- G04—HOROLOGY
- G04F—TIME-INTERVAL MEASURING
- G04F10/00—Apparatus for measuring unknown time intervals by electric means
- G04F10/10—Apparatus for measuring unknown time intervals by electric means by measuring electric or magnetic quantities changing in proportion to time
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Unknown Time Intervals (AREA)
Abstract
654,649. Duration meters. HITCHCOX, G. I. April 18, 1947, No. 10380. [Class 37] [Also in Group XXXVIII] In apparatus for measuring small intervals of time consisting of means for measuring the potential of a condenser C which is charged by a known current during the said interval of time, leakage current in the condenser circuit due to the leakage resistance R1 of the trigger device T is neutralized by the addition of an appropriate current in the opposite direction from an auxiliary supply E2. A balancing resistance R2 is placed in the auxiliary supply circuit, and the condition for no current flow into the condenser from either source is R1/R2=E1/E2, where E1 is the main supply source. The value of E2 is made slightly larger than this to allow for variations in R1. A diode D is placed in the path of the condenser to prevent dissipation of the accumulated potential during charge through the auxiliary circuit when the trigger circuit is re-opened. The charging current is preferably kept constant. Specification 654,675 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1038047A GB654649A (en) | 1947-04-18 | 1947-04-18 | Improvements in or relating to electrical devices for measuring small intervals of time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1038047A GB654649A (en) | 1947-04-18 | 1947-04-18 | Improvements in or relating to electrical devices for measuring small intervals of time |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB654649A true GB654649A (en) | 1951-06-27 |
Family
ID=9966773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1038047A Expired GB654649A (en) | 1947-04-18 | 1947-04-18 | Improvements in or relating to electrical devices for measuring small intervals of time |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB654649A (en) |
-
1947
- 1947-04-18 GB GB1038047A patent/GB654649A/en not_active Expired
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