2-D MEMS tribometer with comb drives
A microelectromechanical (MEMS) nanoindenter transducer including a body, a probe coupled to and moveable relative to the body, the probe holding a removeable indenter tip, a first micromachined comb drive and a second micromachined comb drive. The first micromachined comb drive includes an actuator...
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| creator | WARREN ODEN L OH YUNJE SYED ASIF SYED AMANULA |
| description | A microelectromechanical (MEMS) nanoindenter transducer including a body, a probe coupled to and moveable relative to the body, the probe holding a removeable indenter tip, a first micromachined comb drive and a second micromachined comb drive. The first micromachined comb drive includes an actuator comprising a plurality of electrostatic capacitive actuators configured to drive the probe along a first axis, including in an indentation direction, in response to an applied bias voltage, and a displacement sensor comprising a plurality of differential capacitive sensors having capacitance levels which together are representative of a position of the probe relative to the first axis. The second micromachined comb drive includes an actuator comprising a plurality of electrostatic capacitive actuators configured to drive the probe along a second axis, which is perpendicular to the first axis, in response to an applied bias voltage, and a displacement sensor comprising a plurality of differential capacitive sensors having capacitance levels which together are representative of a position of the probe relative to the second axis. Each of the electrostatic capacitive actuators and the differential capacitive sensors comprises an electrode comb pair, each electrode comb pair including a fixed electrode comb coupled to the body and a moveable electrode comb coupled to the probe. |
| format | Patent |
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The first micromachined comb drive includes an actuator comprising a plurality of electrostatic capacitive actuators configured to drive the probe along a first axis, including in an indentation direction, in response to an applied bias voltage, and a displacement sensor comprising a plurality of differential capacitive sensors having capacitance levels which together are representative of a position of the probe relative to the first axis. The second micromachined comb drive includes an actuator comprising a plurality of electrostatic capacitive actuators configured to drive the probe along a second axis, which is perpendicular to the first axis, in response to an applied bias voltage, and a displacement sensor comprising a plurality of differential capacitive sensors having capacitance levels which together are representative of a position of the probe relative to the second axis. Each of the electrostatic capacitive actuators and the differential capacitive sensors comprises an electrode comb pair, each electrode comb pair including a fixed electrode comb coupled to the body and a moveable electrode comb coupled to the probe.</description><language>eng</language><subject>APPLICATIONS OF SCANNING-PROBE TECHNIQUES, e.g. SCANNING PROBEMICROSCOPY [SPM] ; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES ; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES ; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES ; MEASURING ; NANOTECHNOLOGY ; PERFORMING OPERATIONS ; PHYSICS ; SCANNING-PROBE TECHNIQUES OR APPARATUS ; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES ; TESTING ; TRANSPORTING</subject><creationdate>2015</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=20151013&DB=EPODOC&CC=US&NR=9157845B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20151013&DB=EPODOC&CC=US&NR=9157845B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>WARREN ODEN L</creatorcontrib><creatorcontrib>OH YUNJE</creatorcontrib><creatorcontrib>SYED ASIF SYED AMANULA</creatorcontrib><title>2-D MEMS tribometer with comb drives</title><description>A microelectromechanical (MEMS) nanoindenter transducer including a body, a probe coupled to and moveable relative to the body, the probe holding a removeable indenter tip, a first micromachined comb drive and a second micromachined comb drive. The first micromachined comb drive includes an actuator comprising a plurality of electrostatic capacitive actuators configured to drive the probe along a first axis, including in an indentation direction, in response to an applied bias voltage, and a displacement sensor comprising a plurality of differential capacitive sensors having capacitance levels which together are representative of a position of the probe relative to the first axis. The second micromachined comb drive includes an actuator comprising a plurality of electrostatic capacitive actuators configured to drive the probe along a second axis, which is perpendicular to the first axis, in response to an applied bias voltage, and a displacement sensor comprising a plurality of differential capacitive sensors having capacitance levels which together are representative of a position of the probe relative to the second axis. 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The first micromachined comb drive includes an actuator comprising a plurality of electrostatic capacitive actuators configured to drive the probe along a first axis, including in an indentation direction, in response to an applied bias voltage, and a displacement sensor comprising a plurality of differential capacitive sensors having capacitance levels which together are representative of a position of the probe relative to the first axis. The second micromachined comb drive includes an actuator comprising a plurality of electrostatic capacitive actuators configured to drive the probe along a second axis, which is perpendicular to the first axis, in response to an applied bias voltage, and a displacement sensor comprising a plurality of differential capacitive sensors having capacitance levels which together are representative of a position of the probe relative to the second axis. Each of the electrostatic capacitive actuators and the differential capacitive sensors comprises an electrode comb pair, each electrode comb pair including a fixed electrode comb coupled to the body and a moveable electrode comb coupled to the probe.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | APPLICATIONS OF SCANNING-PROBE TECHNIQUES, e.g. SCANNING PROBEMICROSCOPY [SPM] INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MANUFACTURE OR TREATMENT OF NANOSTRUCTURES MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES MEASURING NANOTECHNOLOGY PERFORMING OPERATIONS PHYSICS SCANNING-PROBE TECHNIQUES OR APPARATUS SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES TESTING TRANSPORTING |
| title | 2-D MEMS tribometer with comb drives |
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