GB1497809A - Angular positional sensing devices - Google Patents
Angular positional sensing devicesInfo
- Publication number
- GB1497809A GB1497809A GB349475A GB349475A GB1497809A GB 1497809 A GB1497809 A GB 1497809A GB 349475 A GB349475 A GB 349475A GB 349475 A GB349475 A GB 349475A GB 1497809 A GB1497809 A GB 1497809A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pendulum
- housing
- shaft
- wheel
- angular
- 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
- 238000013016 damping Methods 0.000 abstract 2
- 239000012530 fluid Substances 0.000 abstract 2
- 230000001413 cellular effect Effects 0.000 abstract 1
- 230000000717 retained effect Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/12—Measuring inclination, e.g. by clinometers, by levels by using a single pendulum plumb lines G01C15/10
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/02—Determining slope or direction
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/043—Directional drilling for underwater installations
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
1497809 Clinometers BP TRADING Ltd 23 Dec 1975 [27 Jan 1975 9 April 1975] 3494/75 and 14513/75 Headings G1F and G1N An angular-position sensor comprises a housing 10 in which is mounted a rotation-sensing device 11 having a freely rotatable shaft 14 carrying a pendulum 17, such that angular movement of the housing about the shaft axis causes rotation of the device relative to the shaft, which is retained stationary by the pendulum, to produce a signal. The device 11 is screwed 12 to the housing with its sensing shaft 14 rigidly secured to and coaxial with a cylindrical pendulum 17 having a weight 18. The pendulum is light both in mass and inertia compared with a balanced wheel 24 rotatably mounted on the housing and circumferentially surrounding the pendulum; the housing including the space between the pendulum and wheel is filled with a damping fluid, a cellular member 29 accommodating any expansion of the fluid. To increase damping between the wheel and pendulum these may have interfitting cylindrical portions (17a, 24a), Fig. 1B (not shown). Two such sensors are shown installed at right angles to each other on the outside of a riser pipe, and their output signals are displayed on a CRT and also to an alarm system which operates progressively as predetermined angles of deviation from the vertical or other chosen reference are exceeded.
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB349475A GB1497809A (en) | 1975-01-27 | 1975-01-27 | Angular positional sensing devices |
US05/646,985 US4027399A (en) | 1975-01-27 | 1976-01-07 | Positional sensing |
CA243,386A CA1063696A (en) | 1975-01-27 | 1976-01-09 | Damped pendulum angular position |
DE19762601177 DE2601177A1 (en) | 1975-01-27 | 1976-01-14 | POSITION SENSATION |
NO760217A NO760217L (en) | 1975-01-27 | 1976-01-23 | |
FR7601994A FR2298785A1 (en) | 1975-01-27 | 1976-01-26 | ANGULAR POSITION CONTROL PERFECTIONS |
JP51007402A JPS5199559A (en) | 1975-01-27 | 1976-01-26 | |
NLAANVRAGE7600814,A NL183907C (en) | 1975-01-27 | 1976-01-27 | ANGLE SENSOR. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB349475A GB1497809A (en) | 1975-01-27 | 1975-01-27 | Angular positional sensing devices |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1497809A true GB1497809A (en) | 1978-01-12 |
Family
ID=9759396
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB349475A Expired GB1497809A (en) | 1975-01-27 | 1975-01-27 | Angular positional sensing devices |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1497809A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2129945A (en) * | 1982-11-10 | 1984-05-23 | Takraf Schwermasch | Measuring inclinations in mobile load lifting machines using pendulum electronic inclinometers |
GB2146773A (en) * | 1983-09-20 | 1985-04-24 | Volvo Penta Ab | Trim indicator for boats with outboard propeller drive units |
GB2170006A (en) * | 1985-01-22 | 1986-07-23 | Penny & Giles Potentiometers L | Inclinometers |
EP1126238A2 (en) * | 2000-02-15 | 2001-08-22 | Fernsteuergeräte Kurt Oelsch GmbH | Inclination sensor |
WO2003068339A1 (en) * | 2002-02-12 | 2003-08-21 | Christopher Worrall | Movement detection apparatus and method of use thereof |
-
1975
- 1975-01-27 GB GB349475A patent/GB1497809A/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2129945A (en) * | 1982-11-10 | 1984-05-23 | Takraf Schwermasch | Measuring inclinations in mobile load lifting machines using pendulum electronic inclinometers |
GB2146773A (en) * | 1983-09-20 | 1985-04-24 | Volvo Penta Ab | Trim indicator for boats with outboard propeller drive units |
AU572186B2 (en) * | 1983-09-20 | 1988-05-05 | Volvo Penta A.B. | Trim indicator for outboard drive unit |
GB2170006A (en) * | 1985-01-22 | 1986-07-23 | Penny & Giles Potentiometers L | Inclinometers |
US4667413A (en) * | 1985-01-22 | 1987-05-26 | Penny & Giles Potentiometers Limited | Inclinometers |
EP1126238A2 (en) * | 2000-02-15 | 2001-08-22 | Fernsteuergeräte Kurt Oelsch GmbH | Inclination sensor |
EP1126238A3 (en) * | 2000-02-15 | 2002-07-17 | Fernsteuergeräte Kurt Oelsch GmbH | Inclination sensor |
WO2003068339A1 (en) * | 2002-02-12 | 2003-08-21 | Christopher Worrall | Movement detection apparatus and method of use thereof |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4490724A (en) | Gimbal system with case mounted drives | |
GB1479182A (en) | Inclination measuring instrument | |
US3584513A (en) | Self-calibrating system for navigational instruments | |
SE8304215L (en) | TRANSDUCTOR FOR SENSING THE ANGLE POSITION OF A SURVEILLANCE MONITORING INSTRUMENT | |
CA2089089A1 (en) | Blast gauge | |
US4262528A (en) | Apparatus for measuring the torque applied to a wrench | |
GB1497809A (en) | Angular positional sensing devices | |
GB890264A (en) | Rotatable antenna assembly | |
US4027399A (en) | Positional sensing | |
GB1175863A (en) | Improvements relating to meridian seeking instruments | |
US2942864A (en) | Device for measuring horizontal acceleration | |
US4144574A (en) | Multi-axis position determining system | |
ES454369A1 (en) | High resolution and wide range shaft position transducer systems | |
US4163325A (en) | Verticality sensors | |
GB818708A (en) | Improvements in acceleration-responsive devices | |
US2709922A (en) | Mechanically integrating rate gyro | |
GB1149164A (en) | A viewing device | |
GB1396163A (en) | Gyrocompasses | |
US3224281A (en) | Base motion compensator for rate integral gyro | |
GB1228468A (en) | ||
GB1330910A (en) | Optical aiming device for the rapid locating and tracking of a target | |
GB1013271A (en) | Improvements in or relating to accelerometers | |
SU678184A1 (en) | Ferroprobe transmitter of an inclination meter | |
GB1114094A (en) | Improvements in or relating to stabilized aiming sights | |
SU115818A1 (en) | Device for measuring the path traveled by a moving body |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19931223 |