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公开(公告)号：US20220326183A1
公开(公告)日：2022-10-13
申请号：US17635118
申请日：2020-08-25
发明人： Raghujit Prasad KUNAPULI , Praveen THALLAPALLY , Peter B. MCGRAIL , Deng ZHIQUN , Jian LIU , Huidong LI , Jun LU , Debasis BANERJEE
IPC分类号： G01N29/02
摘要： A SAW sensor is optimized for detection of refrigerant leakage in a refrigerant system or other gases, vapors, explosives or chemicals of interest. The SAW sensor includes a piezoelectric substrate; an interdigitated transducer deposited on the piezoelectric substrate, the interdigitated transducer having an input portion that receives input surface acoustic waves and an output portion that emits output surface acoustic waves; and a refrigerant sensor film located between the input portion and the output portion of the interdigitated transducer, the refrigerant sensor film including a sorbent material that is selected for preferential adsorption of a target refrigerant over atmospheric gases. Adsorption of the target refrigerant by the sorbent material results in a frequency shift of a frequency of the output surface acoustic waves relative to a frequency of the input surface acoustic waves. The sorbent material may be a metal organic framework (MOF) material, a covalent organic framework (COF) material, a porous organic cage or organic macrocyles such as calix [n] arene and its related derivatives.
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公开(公告)号：US20160356637A1
公开(公告)日：2016-12-08
申请号：US15171038
申请日：2016-06-02
CPC分类号： G01F23/26 , A47F3/0439 , A47F3/0478 , E03C2001/2406 , F25D2700/00 , G01F23/0069 , G08B21/182
摘要： A drain sensor includes a support member for placement relative to a drain, the support member including a cage. A sensor is attached to the support member and arranged within the cage, the sensor operative to provide an inductance measurement corresponding to a fluid level relative to a reference level
摘要翻译： 排水传感器包括用于相对于排水口放置的支撑构件，所述支撑构件包括保持架。 传感器附接到支撑构件并且布置在保持架内，传感器可操作以提供对应于相对于参考水平的液位的电感测量
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