Patent application number | Description | Published |
20080284417 | INCREMENTAL DISPLACEMENT TRANSDUCER AND METHOD FOR DETERMINING A DISPLACEMENT OF A FIRST OBJECT RELATIVE TO A SECOND OBJECT - The invention relates to an incremental displacement transducer for determining a displacement of a first object relative to a second object with a scanning unit linked with the first object for scanning a division track linked with the second object having first areas and second areas alternately arranged with a period length, the first areas having a first physical property and the second areas a second physical property differing therefrom. The scanning unit has a plurality of sensors for scanning the first areas and second areas on the basis of the first and/or second physical property. An evaluating unit is linked with the scanning unit for determining the displacement on the basis of the measuring signals of the sensors. | 11-20-2008 |
20090160434 | INCREMENTAL DISPLACEMENT TRANSDUCER AND METHOD FOR DETERMINING A DISPLACEMENT OF A FIRST OBJECT RELATIVE TO A SECOND OBJECT - The present invention relates to an incremental displacement transducer for determining a displacement of a first object relative to a second object having a scanning unit linked or to be linked with the first object for scanning a spacing or division track linked or to be linked with the second object having first areas and second areas arranged in alternating manner with a period length, the first areas having a first physical property and the second areas a second physical property differing therefrom, and where the scanning unit has a plurality of sensors for scanning the first areas and the second areas on the basis of the first and/or second physical property, and having an evaluation unit linked with the scanning unit for determining the displacement on the basis of measuring signals of the sensors. The incremental displacement transducer is characterized in that the scanning unit has at least four sensors which are mutually spaced from one another over at least one period length of the spacing track, that at least one first signal can be generated from the measuring signals of the sensors in the evaluation unit for determining the displacement, that the first switching signal assumes a first value if the measuring signal of a first selected sensor of a first subgroup of sensors assumes a maximum value within the first subgroup and simultaneously the measuring signal of a second selected sensor of a second subgroup of sensors assumes a maximum value within the second subgroup and/or that the first switching signal assumes a first value if the measuring signal of a third selected sensor of a third subgroup of sensors assumes a maximum value within the third subgroup and simultaneously the measuring signal of a fourth selected sensor of a fourth subgroup of sensors assumes a maximum value within the fourth subgroup, and that the first switching signal otherwise assumes a second value, each subgroup comprising at least two sensors. The invention also relates to a method for determining a displacement of a first object relative to a second object. | 06-25-2009 |
20100188104 | INDUCTIVE INCREMENTAL DISPLACEMENT SENSOR, METHOD FOR DETERMINING THE DISPLACEMENT OF A FIRST OBJECT RELATIVE TO A SECOND OBJECT, AND INDUCTIVE SENSOR UNIT - The present invention relates to an inductive incremental displacement sensor for determining a displacement of a first object relative to a second object, comprising at least one graduated track mountable on the first object and having periodically alternating conductive regions and insulating regions, and having at least one scanning unit mountable on the second object for scanning the graduated track with a first sensor unit and a second sensor unit, which are laterally spaced from each other by a distance d=n*(p/2)+q, wherein n is an integer or zero, p is the pitch of the graduated track and 0 is <|q| | 07-29-2010 |
20100308803 | INDUCTIVE DISPLACEMENT TRANSDUCER, CODING DEVICE, AND METHOD FOR DETECTING A POSITION OF A FIRST OBJECT IN RELATION TO A SECOND OBJECT - The invention relates to an inductive displacement sensor for determining a position of a first object relative to a second object having a coding device to be attached to the first object, having a sensor unit to be attached to the second object, said sensor unit comprising a plurality of inductive sensors for scanning the coding device. The inductive displacement sensor according to the invention is characterized in that the coding device comprises a plurality of marking sections separated from one another by measurement sections, at least the measurement sections having variable widths, in that the marking sections and the measurement sections have different physical properties to aid differentiation by the sensor unit, in that identification regions are formed by the measurement sections or by the measurement sections along with adjacent marking sections, in that the sensor unit is at least long enough in the extension direction of the coding device and the number of inductive sensors is at least great enough that at least one identification region may be detected in every measurement situation, and in that, in order to distinctly associate an identification region with an absolute position of the sensor unit relative to the coding device, each identification region occurs precisely once on the coding device. The invention further relates to a coding bar and a method for determining a position of a first object relative to a second object. | 12-09-2010 |
Patent application number | Description | Published |
20090309762 | Method of and Apparatus for Monitoring the Condition of Structural Components - The present invention relates to a method of monitoring the condition of structural components, in which an optical sensor in conjunction with a computing unit ascertains image deviations from successive images of the structural components to be monitored, and therefrom ascertains changes in shape of the structure. Robust three-dimensional scanning of the structural components is possible when using two or more sensors. The invention further relates to an apparatus for monitoring the condition of structural components having an optical sensor and an apparatus having two or more sensors. Finally the invention relates to an aircraft in which the methods or apparatuses according to the invention are used. | 12-17-2009 |
20110071770 | SYSTEM AND METHOD FOR MONITORING THE STATE OF STRUCTURAL COMPONENTS - The invention relates to a structural component, to a system and to a method for monitoring the integrity of a structure or a structural component. The structural component according to the invention has at least one elongated air duct which can be connected to a vacuum source and to a device for detecting the volumetric flow of air and/or the air pressure in the air duct, wherein, when the structure is intact in the region of the air duct, the air pressure in the air duct essentially corresponds to the air pressure of the vacuum source and there is essentially no volumetric flow of air through the air duct but, when a structural defect occurs in the region of the air duct, air from the region surrounding the structure or structural component enters the air duct and increases the air pressure and volumetric flow of air in the air duct in an identifiable manner. | 03-24-2011 |
20120179414 | REMOTE MEASURING SYSTEM AND METHOD FOR TESTING A REMOTELY PLACED OBJECT - A remote measuring system includes a test apparatus connected to a sensor for testing an object, a communication unit, and a remoteoperating unit. Control signals may be sent from this operating unit to the communication unit to operate the test apparatus. A data processing unit performs a compression process of a first flow of test data emanating from the test apparatus and sends a second flow of test data to the operating unit. The data processing unit performs a quantisation process, which may be controlled through control signals at the operating unit. A remotely located expert may thus receive a direct and qualified impression of the procedure and the inspection results and give advice on correct procedures or on changing the manner of the recording. By obtaining support from experts, time is saved and the transfer of know-how and the use of experts is improved. | 07-12-2012 |