Akustisches Entfernungsmessungssystem
In acoustic level sensing apparatus, in which pulses of acoustic energy are transmitted by an electrically energized transducer towards a surface to be sensed, and the electrical output from the transducer following the pulse is digitized and analyzed to detect a return echo from the surface, variou...
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| creator | WOODWARD, STEVEN J., PORT HOPE ONTARIO L1A 3R2, CA |
| description | In acoustic level sensing apparatus, in which pulses of acoustic energy are transmitted by an electrically energized transducer towards a surface to be sensed, and the electrical output from the transducer following the pulse is digitized and analyzed to detect a return echo from the surface, various techniques of analysis of the digital data so produced are disclosed, so as variously to detect echoes more reliably, to enable echoes to be detected at shorter ranges, and so as to detect open or short circuited transducers, based on extending digitization of the electrical output of the transducer so as to include an initial portion of the transducer response during which the transducer is ringing at high amplitude as a result of excitation of the transducer during transmission. |
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electrical output from the transducer following the pulse is digitized and analyzed to detect a return echo from the surface, various techniques of analysis of the digital data so produced are disclosed, so as variously to detect echoes more reliably, to enable echoes to be detected at shorter ranges, and so as to detect open or short circuited transducers, based on extending digitization of the electrical output of the transducer so as to include an initial portion of the transducer response during which the transducer is ringing at high amplitude as a result of excitation of the transducer during transmission.</description><edition>5</edition><language>ger</language><subject>ANALOGOUS ARRANGEMENTS USING OTHER WAVES ; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES ; MEASURING ; MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL ; METERING BY VOLUME ; PHYSICS ; RADIO DIRECTION-FINDING ; 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energy are transmitted by an electrically energized transducer towards a surface to be sensed, and the electrical output from the transducer following the pulse is digitized and analyzed to detect a return echo from the surface, various techniques of analysis of the digital data so produced are disclosed, so as variously to detect echoes more reliably, to enable echoes to be detected at shorter ranges, and so as to detect open or short circuited transducers, based on extending digitization of the electrical output of the transducer so as to include an initial portion of the transducer response during which the transducer is ringing at high amplitude as a result of excitation of the transducer during transmission.</description><subject>ANALOGOUS ARRANGEMENTS USING OTHER WAVES</subject><subject>DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES</subject><subject>LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES</subject><subject>MEASURING</subject><subject>MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL</subject><subject>METERING BY VOLUME</subject><subject>PHYSICS</subject><subject>RADIO DIRECTION-FINDING</subject><subject>RADIO NAVIGATION</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1994</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFB1zC4tLsksTs5ILVZwzStJSy3KK81LL85NLS4G0cWVxSWpuTwMrGmJOcWpvFCam0HRzTXE2UM3tSA_PrW4IDE5NS-1JN7F1djcwtLU0jAkxMiYGDUAw_Ao0g</recordid><startdate>19940825</startdate><enddate>19940825</enddate><creator>WOODWARD, STEVEN J., PORT HOPE ONTARIO L1A 3R2, CA</creator><scope>EVB</scope></search><sort><creationdate>19940825</creationdate><title>Akustisches Entfernungsmessungssystem</title><author>WOODWARD, STEVEN J., PORT HOPE ONTARIO L1A 3R2, 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transmission.</abstract><edition>5</edition><oa>free_for_read</oa></addata></record> |
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| language | ger |
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| subjects | ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL METERING BY VOLUME PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING |
| title | Akustisches Entfernungsmessungssystem |
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