Abstract: Provided is a welding management system that appropriately manages welding. The welding management system (100) includes a plurality of local magnetic sensors (10a to 10f) provided around a target joining position (K) and a correction magnetic sensor (20) curved to surround the target joining position (K). A data processing unit (30) generates information of a joining state of the target joining position (K) based on a difference between a detection value of each of the plurality of the local magnetic sensors (10a to 10f) and a detection value of the correction magnetic sensor (20).

Abstract: A radar sensor for motor vehicles, having a signal generator that is configured to generate a radar signal that contains a cyclically repeating sequence of N wave trains, where j=1, . . . , N, which are transmitted successively at time intervals T?c,j and which occupy respective frequency bands that differ from one another in terms of their center frequencies fc,j, wherein the relationship applicable to the time intervals T?c,j and the center frequencies fc,j is: T?c,j*fc,j=X, where the parameter X is constant.

Abstract: This patent pertains to a new technique of maximizing the power transferred from a signal source. It accomplishes this by increasing the ratio of the electric to magnetic field and creating a high field impedance on the receiving end of the signal.

Abstract: A system for heating a hydrocarbon resource in a subterranean formation having a wellbore extending therein is provided. The system includes a radio frequency (RF) source, an RF antenna to be positioned within the wellbore, and a magnetic amplifier to be positioned in the wellbore and configured to couple the RF source to the RF antenna so that the RF antenna supplies RF power to the hydrocarbon resource in the subterranean formation.

Abstract: An apparatus includes a circuit and a field line. The circuit includes a magnetic tunnel junction including a storage layer and a sense layer. The field line is configured to generate a magnetic field based on an input signal, where the magnetic tunnel junction is configured such that a magnetization direction of the sense layer and a resistance of the magnetic tunnel junction vary based on the magnetic field. The circuit is configured to amplify the input signal to generate an output signal that varies in response to the resistance of the magnetic tunnel junction.

Abstract: This patent pertains to a new technique of increasing the amount of energy absorbed by an antenna. It accomplishes this by broadcasting a spike that attracts the signal when the fields of its oscillating charge are at their strongest.

Abstract: This invention relates to an amplifier, especially an amplifier having electrical and magnetic input excitations.

Abstract: This patent pertains to a new technique of increasing the amount of energy absorbed by an antenna. It accomplishes this by broadcasting a spike that attracts the signal when the fields of its oscillating charge are at their strongest.

Abstract: The present invention uses an electromagnetic device for amplifying an input signal without the use of amplifiers, power supplies, and inverter/converter circuits. The present invention routes an input signal through an electromagnetic device for amplification of the input signal for later use by various loads.

Abstract: A magnetic amplifier switch is connected to a transmitter and antenna of a LF transmitting system. The transmitter is operable to produce a signal which is modulated to first and second frequencies, for example "mark" and "space" frequencies, at different times. The magnetic switch is connected with inductors which are also connected with the transmitter and antenna. Opening and closing of the magnetic amplifier switch changes the inductance of the antenna such that the antenna is automatically tuned to resonance at the one or the other of the modulated frequencies being transmitted at a given time.

Abstract: A single Josephson junction device is arranged in a single branch which comprises an external source resistor connected in series with an output resistor and a Josephson junction device. An input node and an input resistor are in series and connected to the node between the output resistor and the Josephson junction device. Voltage signals applied to the input voltage node are amplified by connecting a high gain voltage output in parallel with the output resistor and providing sensing means for sensing the voltage output across the output resistor only when the Josephson junction device is switching from its low impedance state to its high impedance state.

Abstract: In accordance with the Hall effect, a magnetic field applied perpendicular to the direction of current flow through a conductor causes an electric field perpendicular to both the direction of the current flow and the direction of the magnetic field established in the conductor. This effect has been used to produce magnetic field and current detectors, modulators and frequency doublers. In accordance with the present disclosure a portion of the magnetic field is reversed to produce squaring of or obtaining the square root of the amplitude of the voltage used to produce the conductor current.

Abstract: Magnetic signal mixing amplifier comprises a saturable core having a rectangular magnetization characteristic, at least one D.C. input winding, and a D.C. driven oscillator connected to receive the output, said amplifier being supplied with an asymmetrical waveform so that a difference between the mean values of the positive and negative halfwaves of the oscillatory output results.