PL227596A1 - - Google Patents
Info
- Publication number
- PL227596A1 PL227596A1 PL22759680A PL22759680A PL227596A1 PL 227596 A1 PL227596 A1 PL 227596A1 PL 22759680 A PL22759680 A PL 22759680A PL 22759680 A PL22759680 A PL 22759680A PL 227596 A1 PL227596 A1 PL 227596A1
- Authority
- PL
- Poland
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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
- Geophysics And Detection Of Objects (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US9058479A | 1979-11-02 | 1979-11-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL227596A1 true PL227596A1 (US20110009641A1-20110113-C00116.png) | 1981-06-19 |
| PL131681B1 PL131681B1 (en) | 1984-12-31 |
Family
ID=22223427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL1980227596A PL131681B1 (en) | 1979-11-02 | 1980-10-31 | Method of determination of condition and homogeneity of structure of coal beds and apparatus therefor |
Country Status (8)
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU580077B2 (en) * | 1985-04-03 | 1988-12-22 | Stolar, Inc. | Electromagnetic instruments and survey procedures for imaging structure in coal seams |
| GB2304483B (en) * | 1995-08-18 | 2000-03-29 | London Electricity Plc | System for and method of determining the location of an object in a medium |
| WO2000020891A1 (fr) * | 1998-10-06 | 2000-04-13 | Jury Vyacheslavovich Kislyakov | Dispositif de sondage pour radiolocalisation souterraine |
| CN103809205B (zh) * | 2014-02-27 | 2015-03-11 | 中国矿业大学(北京) | 一种地质雷达波速层析探测的走时数据快速采集方法 |
| CN103969691A (zh) * | 2014-04-30 | 2014-08-06 | 安徽理工大学 | 矿井工作面探测系统及方法 |
| CN113550791B (zh) * | 2021-07-15 | 2024-02-09 | 陕西麟北煤业开发有限责任公司 | 一种煤矿防治管理的煤层顶板离层水探测方法 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1200597A (fr) * | 1958-04-30 | 1959-12-22 | Procédé et dispositif pour l'exploration géologique et minéralogique des couchessuperficielles du sol | |
| DE1208090B (de) * | 1964-02-15 | 1965-12-30 | Dr Helmut Roeschlau | Verfahren und Anordnung zur kontinuierlichen Messung des Fuellstandes von Bunkern und Silos |
| US3440523A (en) * | 1965-04-02 | 1969-04-22 | Inst Francais Du Petrole | Method and apparatus for electromagnetic determination of the position of boundaries of and discontinuities in a geological formation |
| FR1519514A (fr) * | 1965-04-16 | 1968-04-05 | Inst Francais Du Petrole | Méthode de mesure de l'étendue latérale d'un gisement et sonde de diagraphie pour sa mise en oeuvre |
| FR2041016A1 (US20110009641A1-20110113-C00116.png) * | 1969-05-14 | 1971-01-29 | Inst Francais Du Petrole | |
| US3831173A (en) * | 1969-12-17 | 1974-08-20 | Massachusetts Inst Technology | Ground radar system |
| US3806795A (en) * | 1972-01-03 | 1974-04-23 | Geophysical Survey Sys Inc | Geophysical surveying system employing electromagnetic impulses |
| US4008469A (en) * | 1974-08-06 | 1977-02-15 | Terrestrial Systems, Incorporated | Signal processing in short-pulse geophysical radar system |
| US4072942A (en) * | 1976-02-20 | 1978-02-07 | Calspan Corporation | Apparatus for the detection of buried objects |
| US4150576A (en) * | 1977-10-25 | 1979-04-24 | Energy And Minerals Research Co. | Mine roof and wall inspection apparatus and method |
-
1980
- 1980-08-07 GB GB8025761A patent/GB2061658B/en not_active Expired
- 1980-08-12 CA CA000358129A patent/CA1182547A/en not_active Expired
- 1980-08-13 AU AU61412/80A patent/AU518913B2/en not_active Ceased
- 1980-08-26 ZA ZA00805261A patent/ZA805261B/xx unknown
- 1980-09-05 JP JP12246280A patent/JPS5667778A/ja active Pending
- 1980-09-05 FR FR8019297A patent/FR2468921B1/fr not_active Expired
- 1980-10-02 DE DE19803037325 patent/DE3037325A1/de active Granted
- 1980-10-31 PL PL1980227596A patent/PL131681B1/pl unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ZA805261B (en) | 1981-09-30 |
| GB2061658B (en) | 1984-08-22 |
| AU6141280A (en) | 1981-05-14 |
| DE3037325C2 (US20110009641A1-20110113-C00116.png) | 1987-05-07 |
| FR2468921A1 (fr) | 1981-05-08 |
| AU518913B2 (en) | 1981-10-29 |
| FR2468921B1 (fr) | 1985-08-23 |
| CA1182547A (en) | 1985-02-12 |
| JPS5667778A (en) | 1981-06-08 |
| DE3037325A1 (de) | 1981-05-07 |
| PL131681B1 (en) | 1984-12-31 |
| GB2061658A (en) | 1981-05-13 |
