GB659685A - Improvements in or relating to pulse radar apparatus - Google Patents
Improvements in or relating to pulse radar apparatusInfo
- Publication number
- GB659685A GB659685A GB2242349A GB2242349A GB659685A GB 659685 A GB659685 A GB 659685A GB 2242349 A GB2242349 A GB 2242349A GB 2242349 A GB2242349 A GB 2242349A GB 659685 A GB659685 A GB 659685A
- Authority
- GB
- United Kingdom
- Prior art keywords
- meter
- pulse
- diode
- see
- pulses
- 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
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/28—Details of pulse systems
- G01S7/282—Transmitters
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
659,685. Measuring the amplitude of pulse. DECCA RECORD CO., Ltd., TANNER, S. R., and WIERSMA, R. A. Aug. 29, 1949, No. 22423. [Class 37] [Also in Group XL (c)] In a radar apparatus test device (see Group XL (c)), the amplitude of received pulse signals of radio or intermediate frequency having a substantially constant pulse repetition rate is measured and indicated on a meter 24. The pulses, see Fig. 2A, fed in at A are rectified by diode 17 whose load comprises a small condenser 18, which charges to almost peak value for each pulse, and a leak resistor 19. The signal at B thus developed, see Fig. 2B, is applied to the control grid of valve 20 to produce positive voltage peaks in the anode circuit at C as shown at 2C. These positive peaks cause diode 22 to conduct for a short period, flattening the peaks as shown, and placing a negative charge on the plate of condenser 21 connected to the diode. Resistor 23 and meter 24 provide a leakage path for the negative charge and the time constant is made much greater than the period between successive pulses so that the waveform at the point D is as shown at 2D and the meter deflection is proportional to the shaded area. This area is approximately proportional to the peak value of the signal pulses and the meter may be calibrated for such values.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2242349A GB659685A (en) | 1949-08-29 | 1949-08-29 | Improvements in or relating to pulse radar apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2242349A GB659685A (en) | 1949-08-29 | 1949-08-29 | Improvements in or relating to pulse radar apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB659685A true GB659685A (en) | 1951-10-24 |
Family
ID=10179120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2242349A Expired GB659685A (en) | 1949-08-29 | 1949-08-29 | Improvements in or relating to pulse radar apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB659685A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115857027A (en) * | 2022-10-20 | 2023-03-28 | 东莞市森威电子有限公司 | Pipeline blockage measuring instrument |
-
1949
- 1949-08-29 GB GB2242349A patent/GB659685A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115857027A (en) * | 2022-10-20 | 2023-03-28 | 东莞市森威电子有限公司 | Pipeline blockage measuring instrument |
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