-
公开(公告)号：US09816937B2
公开(公告)日：2017-11-14
申请号：US15309876
申请日：2015-04-20
Applicant: Aktiebolaget SKF
Inventor： Florin Tatar , Jozef Maria Storken
CPC classification number: G01N21/8507 , G01N33/2847
Abstract: A system for detecting the presence of water in oil, provides a detection head including a gap in which oil to be monitored may be received; at least a first optical fiber having a first end, optically coupled to transmit light across the gap; a micro electro-opto-mechanical (MEOM) device, the MEOM device comprising a photo-emitter and a photo-detector integrated onto a silicon based substrate, the photo-emitter being optically coupled to transmit light into a second end of the first optical fiber and the photo-detector being arranged to receive transmitted light that has been transmitted across the gap; and an electronic interface to the MEOM device for communicating therewith. A processor may be provided to analyze and compare the respective light signals to determine an amount of water present in the oil. By observing variations in absorption, the presence of water can be identified.
-
公开(公告)号：US09702816B2
公开(公告)日：2017-07-11
申请号：US15105397
申请日：2013-12-17
Applicant: AKTIEBOLAGET SKF
Inventor： Florin Tatar , Defeng Lang
IPC: G01N21/3577 , G01J3/42 , G01N33/28 , G01N21/3554 , G01N21/359 , G01N21/45 , G01N21/85 , G01J3/02
CPC classification number: G01N21/3577 , G01J3/0218 , G01J3/42 , G01J3/45 , G01J3/4531 , G01N21/3554 , G01N21/359 , G01N21/45 , G01N21/8507 , G01N33/2847 , G01N33/2888 , G01N2201/0846
Abstract: A detector for oil condition monitoring includes an optical fiber having a first end and a second end having an end face. A sensor body has a gap in which a sample of the oil may be received and a reflecting surface, the second end of the optical fiber being embedded in the sensor body and having an end face spaced from the reflecting surface across the gap. Light emitted from the optical fiber can pass through the sample of oil and be reflected by the reflecting surface back into the optical fiber. By interferometry of the respective signals, the condition of the oil can be determined.
-
公开(公告)号：US20190310163A1
公开(公告)日：2019-10-10
申请号：US16375960
申请日：2019-04-05
Applicant: Aktiebolaget SKF
Inventor： Defeng Lang , Hendrik Anne Mol , Florin Tatar
Abstract: Condition monitoring a cage to detect cage damage by detecting if a conducting material applied to a cage is unbroken or broken. The basic principle of the invention is to integrate a completely passive LC circuit, having the conductive material, on the cage. The LC circuit is magnetically activated and it is externally detectable when conducting material is unbroken or broken. The conducting material of the passive LC circuit is easily broken or worn, being weaker than the cage material. The cage material is non-metallic, such as a polymer material or other suitable synthetic materials.
-
公开(公告)号：US11320446B2
公开(公告)日：2022-05-03
申请号：US16423350
申请日：2019-05-28
Applicant: Aktiebolaget SKF
Inventor： Florin Tatar , Victor Martinez , Hendrik Anne Mol , Feng Qiu
IPC: G01M13/045 , G01P3/44 , B61L15/00 , F16C41/00 , G01M13/04
Abstract: A condition monitoring system for monitoring a rolling element bearing. The system includes a signal processing unit and a vibration energy harvester. The vibration energy harvester provides an electromagnetic transducer. When vibrated, a coil moves relative to a static electromagnetic field to create power. To create a compact and efficient condition monitoring system, it uses the electromagnetic transducer also as a vibration sensor, a velocity sensor. The signal processing unit determines if the bearing has been damaged and in some embodiments also the extent of the damage. The electromagnetic transducer is attached directly or indirectly to the rolling element bearing.
-
公开(公告)号：US20190391174A1
公开(公告)日：2019-12-26
申请号：US16423350
申请日：2019-05-28
Applicant: Aktiebolaget SKF
Inventor： Florin Tatar , Victor Martinez , Hendrik Anne Mol , Feng Qiu
Abstract: A condition monitoring system for monitoring a rolling element bearing. The system includes a signal processing unit and a vibration energy harvester. The vibration energy harvester provides an electromagnetic transducer. When vibrated, a coil moves relative to a static electromagnetic field to create power. To create a compact and efficient condition monitoring system, it uses the electromagnetic transducer also as a vibration sensor, a velocity sensor. The signal processing unit determines if the bearing has been damaged and in some embodiments also the extent of the damage. The electromagnetic transducer is attached directly or indirectly to the rolling element bearing.
-
Patent Agency Ranking
公开(公告)号：US10378585B2
公开(公告)日：2019-08-13
申请号：US15658718
申请日：2017-07-25
Applicant: Aktiebolaget SKF
Inventor： Defeng Lang , Phi Long Doan , Yoann Hebrard , Pierre Lemaître-Auger , Mariya Mansurova , Florin Tatar
Abstract: An assembly providing a bearing, a lubricant and a contamination sensor for determining a level of contamination in the lubricant. The sensor includes an EM wave generator for generating an EM signal, and an EM sensing element arranged in contact with the lubricant. The EM sensing element receives the generated EM signal and transmits an output signal whose properties are responsive to real and imaginary parts of a complex relative permittivity of the lubricant. The output signal is received by an EM measuring device that measures first and second parameters of the output signal, which are respectively representative of the real and imaginary parts of the complex relative permittivity. The EM measuring device determines a level of water contamination in the lubricant, based on the measured first parameter alone and determines a level of metal particle contamination in the grease, based on the measured first and second parameters.
-
公开(公告)号：US11054338B2
公开(公告)日：2021-07-06
申请号：US16375960
申请日：2019-04-05
Applicant: Aktiebolaget SKF
Inventor： Defeng Lang , Hendrik Anne Mol , Florin Tatar
Abstract: Condition monitoring a cage to detect cage damage by detecting if a conducting material applied to a cage is unbroken or broken. The basic principle of the invention is to integrate a completely passive LC circuit, having the conductive material, on the cage. The LC circuit is magnetically activated and it is externally detectable when conducting material is unbroken or broken. The conducting material of the passive LC circuit is easily broken or worn, being weaker than the cage material. The cage material is non-metallic, such as a polymer material or other suitable synthetic materials.
-
公开(公告)号：US20180038417A1
公开(公告)日：2018-02-08
申请号：US15658718
申请日：2017-07-25
Applicant: Aktiebolaget SKF
Inventor： Defeng Lang , Mariya Mansurova , Florin Tatar
CPC classification number: F16C33/6633 , F16C19/38 , F16C19/52 , F16C23/086 , F16C33/6625 , F16C41/008 , F16C43/04 , F16C2210/02 , F16C2233/00 , F16N29/00
Abstract: An assembly providing a bearing, a lubricant and a contamination sensor for determining a level of contamination in the lubricant. The sensor includes an EM wave generator for generating an EM signal, and an EM sensing element arranged in contact with the lubricant. The EM sensing element receives the generated EM signal and transmits an output signal whose properties are responsive to real and imaginary parts of a complex relative permittivity of the lubricant. The output signal is received by an EM measuring device that measures first and second parameters of the output signal, which are respectively representative of the real and imaginary parts of the complex relative permittivity. The EM measuring device determines a level of water contamination in the lubricant, based on the measured first parameter alone and determines a level of metal particle contamination in the grease, based on the measured first and second parameters.
-
公开(公告)号：US20170176340A1
公开(公告)日：2017-06-22
申请号：US15309876
申请日：2015-04-20
Applicant: AKTIEBOLAGET SKF
Inventor： Florin Tatar , Jozef Maria Storken
CPC classification number: G01N21/8507 , G01N33/2847
Abstract: A system for detecting the presence of water in oil, provides a detection head including a gap in which oil to be monitored may be received; at least a first optical fiber having a first end, optically coupled to transmit light across the gap; a micro electro-opto-mechanical (MEOM) device, the MEOM device comprising a photo-emitter and a photo-detector integrated onto a silicon based substrate, the photo-emitter being optically coupled to transmit light into a second end of the first optical fiber and the photo-detector being arranged to receive transmitted light that has been transmitted across the gap; and an electronic interface to the MEOM device for communicating therewith. A processor may be provided to analyze and compare the respective light signals to determine an amount of water present in the oil. By observing variations in absorption, the presence of water can be identified.
-
公开(公告)号：US20170045445A1
公开(公告)日：2017-02-16
申请号：US15105397
申请日：2013-12-17
Applicant: AKTIEBOLAGET SKF
Inventor： Florin Tatar , Defeng Lang
IPC: G01N21/3577 , G01N33/28 , G01N21/45
CPC classification number: G01N21/3577 , G01J3/0218 , G01J3/42 , G01J3/45 , G01J3/4531 , G01N21/3554 , G01N21/359 , G01N21/45 , G01N21/8507 , G01N33/2847 , G01N33/2888 , G01N2201/0846
Abstract: A detector for oil condition monitoring includes an optical fibre having a first end and a second end having an end face. A sensor body has a gap in which a sample of the oil may be received and a reflecting surface, the second end of the optical fibre being embedded in the sensor body and having an end face spaced from the reflecting surface across the gap. Light emitted from the optical fibre can pass through the sample of oil and be reflected by the reflecting surface back into the optical fibre. By interferometry of the respective signals, the condition of the oil can be determined.
Abstract translation: 用于油状态监测的检测器包括具有第一端和具有端面的第二端的光纤。 传感器体具有可容纳油的样品的间隙和反射表面，光纤的第二端嵌入传感器主体中，并且具有与穿过间隙的反射表面间隔开的端面。 从光纤发射的光可以通过油样并被反射面反射回光纤。 通过干涉测量各个信号，可以确定油的状态。
-
-
-
-
-
-
-
-
-
Search Results
10
records
(took 0.014 seconds)
