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公开(公告)号：US20240272251A1
公开(公告)日：2024-08-15
申请号：US18631958
申请日：2024-04-10
申请人： Twinleaf LLC
IPC分类号： G01R33/26
CPC分类号： G01R33/26
摘要： Aspects of a pulsed pump magnetometer improve upon previous pulsed pump magnetometers and gradiometers with the following features: the pumping is aided with a pulsed field coil parallel to the pump light, the pump laser module uses a pulse driver circuit integrated into the sensor, the pump laser module uses a wavelength selective element integrated in the laser module but separate from the emitter, and the sensor geometry is arranged so that the dead axis can be easily reoriented by rotating the long axis of the sensor. A preferred sensor geometry, with the pump axis perpendicular to the long edge of the sensor, allows a sensor to be easily rotated to avoid a low signal condition.
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公开(公告)号：US20240268739A1
公开(公告)日：2024-08-15
申请号：US18631976
申请日：2024-04-10
申请人： Twinleaf LLC
CPC分类号： A61B5/243 , A61B5/245 , A61B2560/0431 , A61B2560/0462 , A61B2562/0223 , A61B2562/046
摘要： The pulsed pump magnetometer (PPM) is a new type of magnetometer with much higher dynamic range, linearity, and sensitivity than all other types of magnetometers. These features allow more faithful subtracting and cancelling sources of magnetic noise, enabling high quality biomagnetic measurements. Using an array of PPM sensors enables high quality measurements of biomagnetic signals even in magnetically noisy, real-world conditions like medical offices. Arrays of PPM sensors improve upon pulsed magnetic gradiometers in providing higher sensitivity per sensor and superior noise rejection through noise decorrelation and covariance modeling. Arrays of PPM sensors enable localization and imaging of biomagnetic sources.
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公开(公告)号：US20240201288A1
公开(公告)日：2024-06-20
申请号：US18389420
申请日：2023-11-14
申请人： Twinleaf LLC
IPC分类号： G01R33/26
CPC分类号： G01R33/26
摘要： Aspects of a pulsed pump magnetometer improve upon previous pulsed pump magnetometers and gradiometers with the following features: the pumping is aided with a pulsed field coil parallel to the pump light, the pump laser module uses a pulse driver circuit integrated into the sensor, the pump laser module uses a wavelength selective element integrated in the laser module but separate from the emitter, and the sensor geometry is arranged so that the dead axis can be easily reoriented by rotating the long axis of the sensor. A preferred sensor geometry, with the pump axis perpendicular to the long edge of the sensor, allows a sensor to be easily rotated to avoid a low signal condition.
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公开(公告)号：US20240197227A1
公开(公告)日：2024-06-20
申请号：US18389433
申请日：2023-11-14
申请人： Twinleaf LLC
CPC分类号： A61B5/243 , A61B5/245 , A61B2560/0431 , A61B2560/0462 , A61B2562/0223 , A61B2562/046
摘要： The pulsed pump magnetometer (PPM) is a new type of magnetometer with much higher dynamic range, linearity, and sensitivity than all other types of magnetometers. These features allow more faithful subtracting and cancelling sources of magnetic noise, enabling high quality biomagnetic measurements. Using an array of PPM sensors enables high quality measurements of biomagnetic signals even in magnetically noisy, real-world conditions like medical offices. Arrays of PPM sensors improve upon pulsed magnetic gradiometers in providing higher sensitivity per sensor and superior noise rejection through noise decorrelation and covariance modeling. Arrays of PPM sensors enable localization and imaging of biomagnetic sources.
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