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公开(公告)号：US10254217B2
公开(公告)日：2019-04-09
申请号：US15527278
申请日：2015-11-11
发明人： Bogdan Serban , Octavian Buiu , Mihai Brezeanu , Cornel Cobianu , Cazimir Gabriel Bostan , Cristian Diaconu
IPC分类号： G01N21/33 , G01N21/76 , G01N21/77 , G01N31/22 , G01N27/12 , G01N33/00 , G01N21/75 , G01N21/78 , G01N33/543
摘要： In an embodiment, a benzene sensor comprises a substrate having an iodine complex disposed thereon, a radiation source configured to project UV radiation onto the complex, and a UV detector configured to detect a UV reflection off of the substrate having the iodine complex. The iodine complex can include a cyclodextrine-iodine complex such as an alpha-cyclodextrine-iodine complex, a β-cyclodextrine iodine complex, or any combination thereof.
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公开(公告)号：US10168198B2
公开(公告)日：2019-01-01
申请号：US14577487
申请日：2014-12-19
IPC分类号： G01F23/296 , G01N29/036 , G01N29/22 , G01N29/44
摘要： A method for sensing at least one level parameter of at least one liquid in a tank. At least one bulk acoustic wave (BAW) sensor is positioned inside the tank. Electrodes of the BAW sensor are at least switchably connected to a positive feedback loop across an amplifier to provide an electronic oscillator. At least one acoustic viscosity measurement is determined from an output of the electronic oscillator, wherein the output of the electronic oscillator is different when the BAW sensor contacts the liquid as compared to when the BAW sensor contacts air. The level parameter is determined from the acoustic viscosity measurement.
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公开(公告)号：US10585058B2
公开(公告)日：2020-03-10
申请号：US15594184
申请日：2017-05-12
发明人： Cornel Cobianu , Alisa Stratulat , Bogdan Serban , Octavian Buiu , Cazimir Gabriel Bostan , Mihai Brezeanu , Stefan Dan Costea , Richard Davis
IPC分类号： G01N27/22 , G01N27/414 , H01L29/49 , H01L29/51
摘要： An illustrative humidity sensor may include a substrate having a source and a drain, wherein the drain is laterally spaced from the source. A gate stack is provided in the space between the source and the drain to form a transistor. The gate stack may include a gate insulator situated on the substrate to form a gate insulator/substrate interface. The gate stack may further include a barrier layer above the gate insulator. The barrier layer may be configured to act as a barrier to mobile charge, humidity and/or other contaminates, and may help prevent such contaminates from reaching the gate insulator/substrate interface. The gate stack may further include a humidity sensing layer above the barrier layer. The humidity sensing layer, when exposed to humidity, may modulate the conduction channel in the substrate under the gate insulator and between the source and the drain. In some cases, the humidity level may be determined by monitoring the current flowing between the source and drain.
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公开(公告)号：US10429333B2
公开(公告)日：2019-10-01
申请号：US15090075
申请日：2016-04-04
发明人： Bogdan-Catalin Serban , Cornel P. Cobianu , Mihai Brezeanu , Octavian Buiu , Cazimir Gabriel Bostan , Alisa Stratulat
IPC分类号： G01N27/22
摘要： A relative humidity sensor is disclosed. The relative humidity sensor includes a first electrode and a second electrode disposed above a dielectric substrate. A sensitive layer is disposed above at least one of the first electrode and the second electrode, where the sensitive layer is formed from a composition including a polyimide and a hydrophobic filler. A dust protection layer is disposed above the sensitive layer.
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公开(公告)号：US20170363539A1
公开(公告)日：2017-12-21
申请号：US15527278
申请日：2015-11-11
发明人： Bogdan Serban , Octavian Buiu , Mihai Brezeanu , Cornel Cobianu , Cazimir Gabriel Bostan , Cristian Diaconu
CPC分类号： G01N21/33 , G01N21/75 , G01N27/127 , G01N31/22 , G01N33/0047 , G01N33/54366 , G01N2021/7756 , G01N2021/7773
摘要： In an embodiment, a benzene sensor comprises a substrate having an iodine complex disposed thereon, a radiation source configured to project UV radiation onto the complex, and a UV detector configured to detect a UV reflection off of the substrate having the iodine complex. The iodine complex can include a cyclodextrine-iodine complex such as an alpha-cyclodextrine-iodine complex, a β-cyclodextrine iodine complex, or any combination thereof.
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公开(公告)号：US20170328855A1
公开(公告)日：2017-11-16
申请号：US15594184
申请日：2017-05-12
发明人： Cornel Cobianu , Alisa Stratulat , Bogdan Serban , Octavian Buiu , Cazimir Gabriel Bostan , Mihai Brezeanu , Stefan Dan Costea , Richard Davis
CPC分类号： G01N27/223 , G01N27/4141 , H01L29/4966 , H01L29/51
摘要： An illustrative humidity sensor may include a substrate having a source and a drain, wherein the drain is laterally spaced from the source. A gate stack is provided in the space between the source and the drain to form a transistor. The gate stack may include a gate insulator situated on the substrate to form a gate insulator/substrate interface. The gate stack may further include a barrier layer above the gate insulator. The barrier layer may be configured to act as a barrier to mobile charge, humidity and/or other contaminates, and may help prevent such contaminates from reaching the gate insulator/substrate interface. The gate stack may further include a humidity sensing layer above the barrier layer. The humidity sensing layer, when exposed to humidity, may modulate the conduction channel in the substrate under the gate insulator and between the source and the drain. In some cases, the humidity level may be determined by monitoring the current flowing between the source and drain.
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