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公开(公告)号：US20070210786A1
公开(公告)日：2007-09-13
申请号：US11748053
申请日：2007-05-14
申请人： Mark Allen , Michael Ellis , Jason Kroh , Donald Miller
发明人： Mark Allen , Michael Ellis , Jason Kroh , Donald Miller
IPC分类号： G01R23/12
CPC分类号： G01R23/145 , A61B5/0002 , A61B5/0031 , A61B5/05 , A61B5/076 , A61B2560/0219 , A61B2560/0223 , G01F15/066 , G01R23/12 , H04L2027/0028 , H04L2027/0055 , H04L2027/0067
摘要： The present invention determines the resonant frequency of a sensor by adjusting the phase and frequency of an energizing signal until the frequency of the energizing signal matches the resonant frequency of the sensor. The system energizes the sensor with a low duty cycle, gated burst of RF energy having a predetermined frequency or set of frequencies and a predetermined amplitude. The energizing signal is coupled to the sensor via magnetic coupling and induces a current in the sensor which oscillates at the resonant frequency of the sensor. The system receives the ring down response of the sensor via magnetic coupling and determines the resonant frequency of the sensor, which is used to calculate the measured physical parameter. The system uses a pair of phase locked loops to adjust the phase and the frequency of the energizing signal.
摘要翻译： 本发明通过调节激励信号的相位和频率直到激励信号的频率与传感器的谐振频率相匹配来确定传感器的谐振频率。 该系统以低占空比激励传感器，具有预定频率或一组频率和预定幅度的RF能量门控突发。 激励信号通过磁耦合耦合到传感器，并且感应传感器中的电流，其以传感器的谐振频率振荡。 系统通过磁耦合接收传感器的响铃响应，并确定传感器的谐振频率，用于计算测量的物理参数。 该系统使用一对锁相环来调节激励信号的相位和频率。
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公开(公告)号：US20060196277A1
公开(公告)日：2006-09-07
申请号：US11276571
申请日：2006-03-06
申请人： Mark Allen , Michael Ellis , Jason Kroh , Donald Miller
发明人： Mark Allen , Michael Ellis , Jason Kroh , Donald Miller
IPC分类号： G01F1/58
CPC分类号： G01R23/12 , A61B5/0002 , A61B5/0031 , A61B5/05 , A61B5/076 , A61B2560/0219 , A61B2560/0223 , G01D21/00 , G01F15/066 , G01R23/145
摘要： The present invention determines the resonant frequency of a sensor by adjusting the phase and frequency of an energizing signal until the frequency of the energizing signal matches the resonant frequency of the sensor. The system energizes the sensor with a low duty cycle, gated burst of RF energy having a predetermined frequency or set of frequencies and a predetermined amplitude. The energizing signal is coupled to the sensor via magnetic coupling and induces a current in the sensor which oscillates at the resonant frequency of the sensor. The system receives the ring down response of the sensor via magnetic coupling and determines the resonant frequency of the sensor, which is used to calculate the measured physical parameter. The system uses a pair of phase locked loops to adjust the phase and the frequency of the energizing signal.
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公开(公告)号：US20070247138A1
公开(公告)日：2007-10-25
申请号：US11717967
申请日：2007-03-14
申请人： Donald Miller , Michael Ellis , Mark Allen
发明人： Donald Miller , Michael Ellis , Mark Allen
IPC分类号： G01R35/00
CPC分类号： A61B5/0031 , A61B5/02014 , A61B5/073 , A61B5/076 , A61B2560/0219
摘要： Aspects of the present invention determine the resonant frequency of a sensor by obtain sensor signals in response to three energizing signals, measure the phase of each sensor signal, and using a group phase delay to determine the resonant frequency. The phase difference between the first and second signal is determined as a first group phase delay. The phase difference between the second and third signal is determined as a second group phase delay. The first group phase delay and second group phase delay are compared. Based on the comparison, the system may lock on the resonant frequency of the sensor or adjust a subsequent set of three energizing signals.
摘要翻译： 本发明的方面通过响应于三个激励信号获得传感器信号来确定传感器的谐振频率，测量每个传感器信号的相位，并且使用组相位延迟来确定谐振频率。 第一和第二信号之间的相位差被确定为第一组相位延迟。 第二和第三信号之间的相位差被确定为第二组相位延迟。 比较第一组相位延迟和第二组相位延迟。 基于比较，系统可以锁定传感器的谐振频率或调整后续的一组三个通电信号。
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公开(公告)号：US20070096715A1
公开(公告)日：2007-05-03
申请号：US11613645
申请日：2006-12-20
申请人： James Joy , Jason Kroh , Michael Ellis , Mark Allen , Wilton Pyle
发明人： James Joy , Jason Kroh , Michael Ellis , Mark Allen , Wilton Pyle
IPC分类号： G01R23/12
CPC分类号： G01R23/12 , A61B5/0002 , A61B5/0031 , A61B5/05 , A61B5/076 , A61B2560/0219 , A61B2560/0223 , G01D21/00 , G01F15/066 , G01R23/145
摘要： The present invention determines the resonant frequency of a sensor by adjusting the phase and frequency of an energizing signal until the frequency of the energizing signal matches the resonant frequency of the sensor. The system energizes the sensor with a low duty cycle, gated burst of RF energy having a predetermined frequency or set of frequencies and a predetermined amplitude. The energizing signal is coupled to the sensor via magnetic coupling and induces a current in the sensor which oscillates at the resonant frequency of the sensor. The system receives the ring down response of the sensor via magnetic coupling and determines the resonant frequency of the sensor, which is used to calculate the measured physical parameter. The system uses a pair of phase locked loops to adjust the phase and the frequency of the energizing signal.
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公开(公告)号：US20090224837A1
公开(公告)日：2009-09-10
申请号：US12466595
申请日：2009-05-15
申请人： James Joy , Jason Kroh , Michael Ellis , Mark Allen , Wilton Pyle
发明人： James Joy , Jason Kroh , Michael Ellis , Mark Allen , Wilton Pyle
IPC分类号： H03L7/099
CPC分类号： G01R23/12 , A61B5/0002 , A61B5/0031 , A61B5/05 , A61B5/076 , A61B2560/0219 , A61B2560/0223 , G01D21/00 , G01F15/066 , G01R23/145
摘要： The present invention determines the resonant frequency of a sensor by adjusting the phase and frequency of an energizing signal until the frequency of the energizing signal matches the resonant frequency of the sensor. The system energizes the sensor with a low duty cycle, gated burst of RF energy having a predetermined frequency or set of frequencies and a predetermined amplitude. The energizing signal is coupled to the sensor via magnetic coupling and induces a current in the sensor which oscillates at the resonant frequency of the sensor. The system receives the ring down response of the sensor via magnetic coupling and determines the resonant frequency of the sensor, which is used to calculate the measured physical parameter. The system uses a pair of phase locked loops to adjust the phase and the frequency of the energizing signal.
摘要翻译： 本发明通过调节激励信号的相位和频率直到激励信号的频率与传感器的谐振频率相匹配来确定传感器的谐振频率。 该系统以低占空比激励传感器，具有预定频率或一组频率和预定幅度的RF能量门控突发。 激励信号通过磁耦合耦合到传感器，并且感应传感器中的电流，其以传感器的谐振频率振荡。 系统通过磁耦合接收传感器的响铃响应，并确定传感器的谐振频率，用于计算测量的物理参数。 该系统使用一对锁相环来调节激励信号的相位和频率。
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公开(公告)号：US20110181297A1
公开(公告)日：2011-07-28
申请号：US13078091
申请日：2011-04-01
申请人： James Joy , Jason Kroh , Michael Ellis , Mark Allen , Wilton Pyle
发明人： James Joy , Jason Kroh , Michael Ellis , Mark Allen , Wilton Pyle
CPC分类号： G01R23/12 , A61B5/0002 , A61B5/0031 , A61B5/05 , A61B5/076 , A61B2560/0219 , A61B2560/0223 , G01D21/00 , G01F15/066 , G01R23/145
摘要： The present invention determines the resonant frequency of a sensor by adjusting the phase and frequency of an energizing signal until the frequency of the energizing signal matches the resonant frequency of the sensor. The system energizes the sensor with a low duty cycle, gated burst of RF energy having a predetermined frequency or set of frequencies and a predetermined amplitude. The energizing signal is coupled to the sensor via magnetic coupling and induces a current in the sensor which oscillates at the resonant frequency of the sensor. The system receives the ring down response of the sensor via magnetic coupling and determines the resonant frequency of the sensor, which is used to calculate the measured physical parameter. The system uses a pair of phase locked loops to adjust the phase and the frequency of the energizing signal.
摘要翻译： 本发明通过调节激励信号的相位和频率直到激励信号的频率与传感器的谐振频率相匹配来确定传感器的谐振频率。 该系统以低占空比激励传感器，具有预定频率或一组频率和预定幅度的RF能量门控突发。 激励信号通过磁耦合耦合到传感器，并且感应传感器中的电流，其以传感器的谐振频率振荡。 系统通过磁耦合接收传感器的响铃响应，并确定传感器的谐振频率，用于计算测量的物理参数。 该系统使用一对锁相环来调节激励信号的相位和频率。
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公开(公告)号：US07245117B1
公开(公告)日：2007-07-17
申请号：US11105294
申请日：2005-04-13
申请人： James Joy , Jason Kroh , Michael Ellis , Mark Allen , Wilton Pyle
发明人： James Joy , Jason Kroh , Michael Ellis , Mark Allen , Wilton Pyle
CPC分类号： G01R23/12 , A61B5/0002 , A61B5/0031 , A61B5/05 , A61B5/076 , A61B2560/0219 , A61B2560/0223 , G01D21/00 , G01F15/066 , G01R23/145
摘要： The present invention determines the resonant frequency of a sensor by adjusting the phase and frequency of an energizing signal until the frequency of the energizing signal matches the resonant frequency of the sensor. The system energizes the sensor with a low duty cycle, gated burst of RF energy having a predetermined frequency or set of frequencies and a predetermined amplitude. The energizing signal is coupled to the sensor via magnetic coupling and induces a current in the sensor which oscillates at the resonant frequency of the sensor. The system receives the ring down response of the sensor via magnetic coupling and determines the resonant frequency of the sensor, which is used to calculate the measured physical parameter. The system uses a pair of phase locked loops to adjust the phase and the frequency of the energizing signal.
摘要翻译： 本发明通过调节激励信号的相位和频率直到激励信号的频率与传感器的谐振频率相匹配来确定传感器的谐振频率。 该系统以低占空比激励传感器，具有预定频率或一组频率和预定幅度的RF能量门控突发。 激励信号通过磁耦合耦合到传感器，并且感应传感器中的电流，其以传感器的谐振频率振荡。 系统通过磁耦合接收传感器的响铃响应，并确定传感器的谐振频率，用于计算测量的物理参数。 该系统使用一对锁相环来调节激励信号的相位和频率。
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公开(公告)号：US08237451B2
公开(公告)日：2012-08-07
申请号：US13078091
申请日：2011-04-01
申请人： James Joy , Jason Kroh , Michael Ellis , Mark Allen , Wilton Pyle
发明人： James Joy , Jason Kroh , Michael Ellis , Mark Allen , Wilton Pyle
CPC分类号： G01R23/12 , A61B5/0002 , A61B5/0031 , A61B5/05 , A61B5/076 , A61B2560/0219 , A61B2560/0223 , G01D21/00 , G01F15/066 , G01R23/145
摘要： The present invention determines the resonant frequency of a sensor by adjusting the phase and frequency of an energizing signal until the frequency of the energizing signal matches the resonant frequency of the sensor. The system energizes the sensor with a low duty cycle, gated burst of RF energy having a predetermined frequency or set of frequencies and a predetermined amplitude. The energizing signal is coupled to the sensor via magnetic coupling and induces a current in the sensor which oscillates at the resonant frequency of the sensor. The system receives the ring down response of the sensor via magnetic coupling and determines the resonant frequency of the sensor, which is used to calculate the measured physical parameter. The system uses a pair of phase locked loops to adjust the phase and the frequency of the energizing signal.
摘要翻译： 本发明通过调节激励信号的相位和频率直到激励信号的频率与传感器的谐振频率相匹配来确定传感器的谐振频率。 该系统以低占空比激励传感器，具有预定频率或一组频率和预定幅度的RF能量门控突发。 激励信号通过磁耦合耦合到传感器，并且感应传感器中的电流，其以传感器的谐振频率振荡。 系统通过磁耦合接收传感器的响铃响应，并确定传感器的谐振频率，用于计算测量的物理参数。 该系统使用一对锁相环来调节激励信号的相位和频率。
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公开(公告)号：US20090224773A1
公开(公告)日：2009-09-10
申请号：US12466541
申请日：2009-05-15
申请人： James Joy , Jason Kroh , Michael Ellis , Mark Allen , Wilton Pyle
发明人： James Joy , Jason Kroh , Michael Ellis , Mark Allen , Wilton Pyle
IPC分类号： G01R23/12
CPC分类号： G01R23/12 , A61B5/0002 , A61B5/0031 , A61B5/05 , A61B5/076 , A61B2560/0219 , A61B2560/0223 , G01D21/00 , G01F15/066 , G01R23/145
摘要： The present invention determines the resonant frequency of a sensor by adjusting the phase and frequency of an energizing signal until the frequency of the energizing signal matches the resonant frequency of the sensor. The system energizes the sensor with a low duty cycle, gated burst of RF energy having a predetermined frequency or set of frequencies and a predetermined amplitude. The energizing signal is coupled to the sensor via magnetic coupling and induces a current in the sensor which oscillates at the resonant frequency of the sensor. The system receives the ring down response of the sensor via magnetic coupling and determines the resonant frequency of the sensor, which is used to calculate the measured physical parameter. The system uses a pair of phase locked loops to adjust the phase and the frequency of the energizing signal.
摘要翻译： 本发明通过调节激励信号的相位和频率直到激励信号的频率与传感器的谐振频率相匹配来确定传感器的谐振频率。 该系统以低占空比激励传感器，具有预定频率或一组频率和预定幅度的RF能量门控突发。 激励信号通过磁耦合耦合到传感器，并且感应传感器中的电流，其以传感器的谐振频率振荡。 系统通过磁耦合接收传感器的响铃响应，并确定传感器的谐振频率，用于计算测量的物理参数。 该系统使用一对锁相环来调节激励信号的相位和频率。
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公开(公告)号：US07839153B2
公开(公告)日：2010-11-23
申请号：US12466541
申请日：2009-05-15
申请人： James Joy , Jason Kroh , Michael Ellis , Mark Allen , Wilton Pyle
发明人： James Joy , Jason Kroh , Michael Ellis , Mark Allen , Wilton Pyle
CPC分类号： G01R23/12 , A61B5/0002 , A61B5/0031 , A61B5/05 , A61B5/076 , A61B2560/0219 , A61B2560/0223 , G01D21/00 , G01F15/066 , G01R23/145
摘要： The present invention determines the resonant frequency of a sensor by adjusting the phase and frequency of an energizing signal until the frequency of the energizing signal matches the resonant frequency of the sensor. The system energizes the sensor with a low duty cycle, gated burst of RF energy having a predetermined frequency or set of frequencies and a predetermined amplitude. The energizing signal is coupled to the sensor via magnetic coupling and induces a current in the sensor which oscillates at the resonant frequency of the sensor. The system receives the ring down response of the sensor via magnetic coupling and determines the resonant frequency of the sensor, which is used to calculate the measured physical parameter. The system uses a pair of phase locked loops to adjust the phase and the frequency of the energizing signal.
摘要翻译： 本发明通过调节激励信号的相位和频率直到激励信号的频率与传感器的谐振频率相匹配来确定传感器的谐振频率。 该系统以低占空比激励传感器，具有预定频率或一组频率和预定幅度的RF能量门控突发。 激励信号通过磁耦合耦合到传感器，并且感应传感器中的电流，其以传感器的谐振频率振荡。 系统通过磁耦合接收传感器的响铃响应，并确定传感器的谐振频率，用于计算测量的物理参数。 该系统使用一对锁相环来调节激励信号的相位和频率。
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