摘要:
A receiver includes a circuit designed to process, based on a plurality of timed waveform reference locations, a waveform signal, the waveform signal comprising a message. The circuit may include a clock source, an input configured to receive the waveform signal, a time location reference circuit coupled to the clock source, the time location reference circuit designed to output the plurality of timed waveform reference locations, each timed waveform reference location being set by the clock, and a signal processing circuit coupled to the time location reference circuit, the signal processing circuit designed to generate an output voltage in a response to the waveform signal being inputted into the signal processing circuit through the input and processed at each timed waveform reference location from the series of timed waveform reference locations. A transmitter that generates the waveform signal can be also provided where the clocks are matched.
摘要:
An apparatus and system to nondestructively analyze 2D and 3D cell cultures for cell health using a combination of RF spectroscopy and a radio tomography. The apparatus acquires a signal using a low noise, highly sensitive detector. The signals are combined and compared to the signal of healthy cells.
摘要:
A method and apparatus is provided for the analysis of gaseous compounds, especially for determining the concentration of a gas or gases in a gas mixture by microwave spectroscopy. Microwave radiation is generated at one or more frequencies the gas is most responsive to, transmitted by antenna, passed through the gas under test, received by antenna, and the absorption and/or reflection of the microwave radiation is measured by means such as digitization and analysis using the FFT spectrum versus energy response generated, the response subsequently used to calculate the gas concentration.
摘要:
A receiver includes a circuit designed to process, based on a plurality of timed waveform reference locations, a waveform signal, the waveform signal comprising a message. The circuit may include a clock source, an input configured to receive the waveform signal, a time location reference circuit coupled to the clock source, the time location reference circuit designed to output the plurality of timed waveform reference locations, each timed waveform reference location being set by the clock, and a signal processing circuit coupled to the time location reference circuit, the signal processing circuit designed to generate an output voltage in a response to the waveform signal being inputted into the signal processing circuit through the input and processed at each timed waveform reference location from the series of timed waveform reference locations. A transmitter that generates the waveform signal can be also provided where the clocks are matched.
摘要:
A method and system for measuring steam mass flow in a conduit by simultaneously measuring absorbance and variable steam patterns by light detectors receiving coherent light.
摘要:
An apparatus for detecting a condition or authenticity of one or more electronic devices includes an enclosure having an antenna integrated therewithin, a fixture mounted within a hollow interior of the enclosure, the fixture being configured to receive the one or more electronic devices and connect one or more signals to each of the one or more electronic devices and a sensor and controller assembly connected to the antenna and configured to process a signature of an emission of a radiofrequency (RF) energy from of one or more electronic devices having the one or more signals connected thereto.
摘要:
A device and a method for monitoring and analysis utilize unintended electromagnetic emissions of electrically powered components, devices or systems. The emissions are received at the antenna and a receiver. A processor processes and measures change or changes in a signature of the unintended electromagnetic emissions. The measurement are analyzed to both record a baseline score for future measurements and to be used in determining status and/or health of the analyzed system or component.
摘要:
A system for determining structural characteristics of an electromagnetic energy shielding material during a manufacturing process includes a transmitting antenna device mounted for a reciprocal linear movement across a width thereof, the transmitting antenna device being connected to a source of the electromagnetic energy and operable to transmit waves of the electromagnetic energy through the thickness of the electromagnetic energy shielding material during the reciprocal linear movement. A receiving antenna device is also mounted for the reciprocal linear movement in an alignment with the transmitting antenna device and operable to receive, during the reciprocal linear movement, the waves of electromagnetic energy being absorbed and attenuated by the electromagnetic energy shielding material. Power actuators are also provided to move the transmitting and the receiving antenna devices while the electromagnetic energy shielding material is moving in a linear direction being transverse to the reciprocal linear movement.
摘要:
A nonaqueous battery cell includes a casing, a negative electrode provided in the casing, the negative electrode including lithium ions intercalated into a single crystal of a titanium dioxide (TiO2), in the rutile phase, with concentration on the order of 1016 cm−3, a positive electrode provided in the casing, a separator separating the negative electrode from the positive electrode, and an electrolyte disposed in the casing.A method of manufacturing a negative electrode material to be used in a nonaqueous battery cell includes the steps of burying a titanium dioxide (TiO2) into a lithium hydroxide powder, heating, in a furnace, the titanium dioxide buried in the lithium hydroxide powder at about 450° Celsius for 6 or more hours, and isolating a single lithium ion within a C-axis channels aligned along the crystallographic direction of the single TiO2 crystal.
摘要:
A high power RF energy device component is disclosed that is exposed to high power RF energy in a vacuum environment, and includes a multipactor-inhibiting carbon nanofilm covering at least one surface of the component. A secondary electron efficiency (SEE) coefficient of the multipactor inhibiting carbon nanofilm is desirably less than a SEE coefficient of the underlying surface of the component.