摘要:
Disclosed herein is a non-contact MCG is anticipated as one embodiment. Additionally, a non-contact stethoscope, thermal sensor, or MCG could be utilized singly or in combination with each other, or included singly or together in other medical devices such as a fluoroscope, For example, a handheld, portable instrument comprising a non-contact stethoscope without a magnetometer or thermal sensor can provide a measure of acoustic signals without contacting a subject, while a non-contact thermal sensor as a single device can provide a rapid contactless temperature of a subject
摘要:
Devices disclosed according to various embodiments use one or more arrays of atomic magnetometers to directly detection of relaxation of magnetic field induced subatomic precession within a target specimen. The disclosed devices and methods relate to application of utilization of a magnetic sensor with unique properties requiring changes in design, allowing new functions, and requiring alternative analysis methodologies. Various embodiments are also directed to methods for obtaining and processing magnetic signals. These methods may take advantage of the unique spatial arrangement of the atomic magnetometers and the capacity sensors to be used in either a scalar or a vector mode. Various embodiments have advantages over current techniques utilized for imaging of anatomical and non-anatomical structures. Such advantages may include, for example: development of a wearable, portable array, lower power consumption, potential wafer-level fabrication, the potential for development of a more rapid signal, decreased need for development of strong magnetic fields, and lower cost allowing wider availability.
摘要:
Devices disclosed according to various embodiments use one or more arrays of atomic magnetometers to directly detection of relaxation of magnetic field induced subatomic precession within a target specimen. The disclosed devices and methods relate to application of utilization of a magnetic sensor with unique properties requiring changes in design, allowing new functions, and requiring alternative analysis methodologies. Various embodiments are also directed to methods for obtaining and processing magnetic signals. These methods may take advantage of the unique spatial arrangement of the atomic magnetometers and the capacity sensors to be used in either a scalar or a vector mode. Various embodiments have advantages over current techniques utilized for imaging of anatomical and non-anatomical structures. Such advantages may include, for example: development of a wearable, portable array, lower power consumption, potential wafer-level fabrication, the potential for development of a more rapid signal, decreased need for development of strong magnetic fields, and lower cost allowing wider availability.
摘要:
Devices disclosed according to various embodiments use one or more arrays of atomic magnetometers to detect biologically derived magnetic fields. The disclosed devices and methods relate to application of utilization of a magnetic sensor with unique properties requiring changes in design, allowing new functions, and requiring alternative analysis methodologies. Various embodiments are also directed to methods for obtaining and processing biological magnetic signals. These methods may take advantage of the unique spatial arrangement of the atomic magnetometers and the capacity sensors to he used in either a scalar or a vector mode. Various embodiments have advantages over current magnetometer arrays for the purpose of detecting biological magnetic fields. Such advantages may include, for example: smaller size, lower power consumption, no necessity for cryogenic cooling, potential wafer-level fabrication, and/or the potential of better localization biological signals. In addition, various embodiments may allow increased target or subject mobility.
摘要:
An administration server in a database management system retrieves log files in a plurality of formats from a plurality of clients through helper programs running on the clients. The plurality of clients can include Web servers, application servers, and database servers. The log files can be generated by software modules on the clients. An administration engine converts log entries in the log files into a unified format for display. The converted log entries can be stored in a log database. Upon a user request, the administration server presents the log entries to the user in a log viewer. The log viewer can display log entries originated from heterogeneous software modules in a unified view.
摘要:
An electronic receiver array for detecting microwave signals. Ultra-small resonant devices resonate at a frequency higher than the microwave frequency (for example, the optical frequencies) when the microwave energy is incident to the receiver. A microwave antenna couples the microwave energy and excites the ultra-small resonant structures to produce Plasmon activity on the surfaces of the resonant structures. The Plasmon activity produces detectable electromagnetic radiation at the resonant frequency.
摘要:
In certain aspects, interferometry methods are disclosed that include providing one or more interferometry signals for a test object, wherein the interferometry signals correspond to a sequence of optical path difference (OPD) values which are not all equally spaced from one another because of noise, providing information about the unequal spacing of the sequence of OPD values, decomposing each of the interferometry signals into a contribution from a plurality of basis functions each corresponding to a different frequency and sampled at the unequally spaced OPD values, and using information about the contribution from each of the multiple basis functions to each of the interferometry signals to determine information about the test object.
摘要:
A multi-frequency receiver for receiving plural frequencies of electromagnetic radiation (e.g., light) using a beam of charged particles shared between plural resonant structures. The direction of the beam of charged particles is selectively controlled by at least one deflector. The beam of charged particles passing near the resonant structure is altered on at least one characteristic as a result the presence of the electric field induced on the corresponding resonant structure. Alterations in the beam of charged particles are thus correlated to data values encoded by the electromagnetic radiation.
摘要:
A detector system for performing at least one of transmitting and receiving electromagnetic radiation at a low-terahertz frequency. The detection of electromagnetic radiation at low-terahertz frequencies can be useful in the detection of various chemicals. Preferably a detector includes a microresonant structure that is caused to resonate by electromagnetic radiation at a low-terahertz frequency. The resonance is detected by detecting an altered path of a charged particle beam.
摘要:
A charged particle beam including charged particles (e.g., electrons) is generated from a charged particle source (e.g., a cathode or scanning electron beam). As the beam is projected, it passes between plural alternating electric fields. The attraction of the charged particles to their oppositely charged fields accelerates the charged particles, thereby increasing their velocities in the corresponding (positive or negative) direction. The charged particles therefore follow an oscillating trajectory. When the electric fields are selected to produce oscillating trajectories having the same (or nearly the same) frequency as the emitted radiation, the resulting photons can be made to constructively interfere with each other to produce a coherent radiation source.