ULTRASONIC DISTANCE SENSOR WITH WIDE BEAM DIRECTIVITY
An ultrasonic distance sensor with a wide directional angle is provided to secure the radiation angle of ultrasonic waves over 180 degrees by properly adjusting a diameter of a sound emission aperture, thereby increasing a sensing range in using the ultrasonic distance sensor for a moving robot and...
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| creator | KIM, BYUNG GEUK |
| description | An ultrasonic distance sensor with a wide directional angle is provided to secure the radiation angle of ultrasonic waves over 180 degrees by properly adjusting a diameter of a sound emission aperture, thereby increasing a sensing range in using the ultrasonic distance sensor for a moving robot and a range finder. An ultrasonic distance sensor with a wide directional angle is composed of a unimorph-type vibration plate(200) comprising a circular metal plate(10) and electrodes arranged in a cylindrical plastic housing(90), and a circular or square piezo-electric ceramic plate(20) formed by attaching one of the electrodes to the metal plate; a cone-shaped resonator(30) attached on the upside of the metal plate; and an aperture(80) formed at one spot in a sound emission screen(81). The radiation angle of the ultrasonic wave toward an upper end of the vibration plate is widened by adjusting the width of the aperture. |
| format | Patent |
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An ultrasonic distance sensor with a wide directional angle is composed of a unimorph-type vibration plate(200) comprising a circular metal plate(10) and electrodes arranged in a cylindrical plastic housing(90), and a circular or square piezo-electric ceramic plate(20) formed by attaching one of the electrodes to the metal plate; a cone-shaped resonator(30) attached on the upside of the metal plate; and an aperture(80) formed at one spot in a sound emission screen(81). The radiation angle of the ultrasonic wave toward an upper end of the vibration plate is widened by adjusting the width of the aperture.</description><language>eng</language><subject>ANALOGOUS ARRANGEMENTS USING OTHER WAVES ; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ; FOR PERFORMING MECHANICAL WORK IN GENERAL ; GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL ; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES ; MEASURING ; METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY ; PERFORMING OPERATIONS ; PHYSICS ; RADIO DIRECTION-FINDING ; RADIO NAVIGATION ; TESTING ; TRANSPORTING</subject><creationdate>2007</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20070704&DB=EPODOC&CC=KR&NR=20070071203A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20070704&DB=EPODOC&CC=KR&NR=20070071203A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KIM, BYUNG GEUK</creatorcontrib><title>ULTRASONIC DISTANCE SENSOR WITH WIDE BEAM DIRECTIVITY</title><description>An ultrasonic distance sensor with a wide directional angle is provided to secure the radiation angle of ultrasonic waves over 180 degrees by properly adjusting a diameter of a sound emission aperture, thereby increasing a sensing range in using the ultrasonic distance sensor for a moving robot and a range finder. An ultrasonic distance sensor with a wide directional angle is composed of a unimorph-type vibration plate(200) comprising a circular metal plate(10) and electrodes arranged in a cylindrical plastic housing(90), and a circular or square piezo-electric ceramic plate(20) formed by attaching one of the electrodes to the metal plate; a cone-shaped resonator(30) attached on the upside of the metal plate; and an aperture(80) formed at one spot in a sound emission screen(81). The radiation angle of the ultrasonic wave toward an upper end of the vibration plate is widened by adjusting the width of the aperture.</description><subject>ANALOGOUS ARRANGEMENTS USING OTHER WAVES</subject><subject>DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES</subject><subject>FOR PERFORMING MECHANICAL WORK IN GENERAL</subject><subject>GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL</subject><subject>LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES</subject><subject>MEASURING</subject><subject>METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY</subject><subject>PERFORMING OPERATIONS</subject><subject>PHYSICS</subject><subject>RADIO DIRECTION-FINDING</subject><subject>RADIO NAVIGATION</subject><subject>TESTING</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2007</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDAN9QkJcgz29_N0VnDxDA5x9HN2VQh29Qv2D1II9wzxABIurgpOro6-QOkgV-cQzzDPkEgeBta0xJziVF4ozc2g7OYa4uyhm1qQH59aXJCYnJqXWhLvHWRkYGAORIZGBsaOxsSpAgCeLyiX</recordid><startdate>20070704</startdate><enddate>20070704</enddate><creator>KIM, BYUNG GEUK</creator><scope>EVB</scope></search><sort><creationdate>20070704</creationdate><title>ULTRASONIC DISTANCE SENSOR WITH WIDE BEAM DIRECTIVITY</title><author>KIM, BYUNG GEUK</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_KR20070071203A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2007</creationdate><topic>ANALOGOUS ARRANGEMENTS USING OTHER WAVES</topic><topic>DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES</topic><topic>FOR PERFORMING MECHANICAL WORK IN GENERAL</topic><topic>GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL</topic><topic>LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES</topic><topic>MEASURING</topic><topic>METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY</topic><topic>PERFORMING OPERATIONS</topic><topic>PHYSICS</topic><topic>RADIO DIRECTION-FINDING</topic><topic>RADIO NAVIGATION</topic><topic>TESTING</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>KIM, BYUNG GEUK</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KIM, BYUNG GEUK</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>ULTRASONIC DISTANCE SENSOR WITH WIDE BEAM DIRECTIVITY</title><date>2007-07-04</date><risdate>2007</risdate><abstract>An ultrasonic distance sensor with a wide directional angle is provided to secure the radiation angle of ultrasonic waves over 180 degrees by properly adjusting a diameter of a sound emission aperture, thereby increasing a sensing range in using the ultrasonic distance sensor for a moving robot and a range finder. An ultrasonic distance sensor with a wide directional angle is composed of a unimorph-type vibration plate(200) comprising a circular metal plate(10) and electrodes arranged in a cylindrical plastic housing(90), and a circular or square piezo-electric ceramic plate(20) formed by attaching one of the electrodes to the metal plate; a cone-shaped resonator(30) attached on the upside of the metal plate; and an aperture(80) formed at one spot in a sound emission screen(81). The radiation angle of the ultrasonic wave toward an upper end of the vibration plate is widened by adjusting the width of the aperture.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES FOR PERFORMING MECHANICAL WORK IN GENERAL GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY PERFORMING OPERATIONS PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING TRANSPORTING |
| title | ULTRASONIC DISTANCE SENSOR WITH WIDE BEAM DIRECTIVITY |
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