ES172515A1 - Mejoras en o relativas a dispositivos contadores de frecuencia eléctrica - Google Patents
Mejoras en o relativas a dispositivos contadores de frecuencia eléctricaInfo
- Publication number
- ES172515A1 ES172515A1 ES0172515A ES172515A ES172515A1 ES 172515 A1 ES172515 A1 ES 172515A1 ES 0172515 A ES0172515 A ES 0172515A ES 172515 A ES172515 A ES 172515A ES 172515 A1 ES172515 A1 ES 172515A1
- Authority
- ES
- Spain
- Prior art keywords
- electrical frequency
- countering
- devices
- bridge
- capacitors
- 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
- 239000003990 capacitor Substances 0.000 abstract 3
- 241000269350 Anura Species 0.000 abstract 1
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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
- G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
- G01S13/34—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
-
- 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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
- G01S13/585—Velocity or trajectory determination systems; Sense-of-movement determination systems processing the video signal in order to evaluate or display the velocity value
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Measurement Of Current Or Voltage (AREA)
- Rectifiers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2373244A GB583752A (en) | 1944-11-28 | 1944-11-28 | Improvements in or relating to electric frequency counting arrangements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES172515A1 true ES172515A1 (es) | 1946-03-16 |
Family
ID=10200387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0172515A Expired ES172515A1 (es) | 1944-11-28 | 1946-02-09 | Mejoras en o relativas a dispositivos contadores de frecuencia eléctrica |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE471307A (enrdf_load_stackoverflow) |
| ES (1) | ES172515A1 (enrdf_load_stackoverflow) |
| FR (1) | FR939201A (enrdf_load_stackoverflow) |
| GB (1) | GB583752A (enrdf_load_stackoverflow) |
-
0
- BE BE471307D patent/BE471307A/xx unknown
-
1944
- 1944-11-28 GB GB2373244A patent/GB583752A/en not_active Expired
-
1946
- 1946-02-09 ES ES0172515A patent/ES172515A1/es not_active Expired
- 1946-07-06 FR FR939201D patent/FR939201A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE471307A (enrdf_load_stackoverflow) | |
| GB583752A (en) | 1946-12-30 |
| FR939201A (fr) | 1948-11-08 |
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