7 results about "Linear loss" patented technology

The invention relates to the technical field of hydraulic power plant operation management, and discloses a hydraulic power plant operation management system and method, and the system comprises a static damage mapping module which stores a grid equivalent loss matrix representing the mechanical life loss rate of a unit; the fatigue debt accumulation module accumulates fatigue debt numerical values according to the loss penalty coefficient and the residence duration of the real-time working condition point and a nonlinear rule; the value-oriented arbitration module is used for calculating a net income expected value and generating a dynamic output instruction based on the external value signal and the loss cost when the fatigue debt is lower than a threshold value; according to the invention, a fatigue debt closed-loop control mechanism is established, so that the problem of space-time mismatch between mechanical life nonlinear loss and high-frequency scheduling requirements is solved, and maximized release of stock asset regulation value is realized on the premise of ensuring physical safety of equipment.

The application relates to a waveguide loss measurement method based on double-channel detection, which is used for accurately obtaining the linear loss coefficient of a nonlinear waveguide to be measured. Pump light, probe light and auxiliary laser are combined and injected into the waveguide to be measured to trigger a four-wave mixing effect to generate idler light; then, the waveguide output light is split into two paths through a light splitting element, and the idler light signal and the auxiliary laser signal are extracted as a measurement channel and a reference channel; the waveguide temperature is adjusted to stabilize the idler light power, and a linear interval of the probe light and the idler light power is obtained through fitting; the probe light power is fixed in the interval, a noise compensation factor is generated by using the average power and the instantaneous power of the auxiliary laser, the idler light power is corrected in real time, and finally the waveguide loss is calculated based on the corrected data. The method realizes real-time noise cancellation through double channels, combines parameter locking and linear interval screening, greatly improves the measurement stability and precision, and adapts to the loss detection requirements of various nonlinear waveguides.

Methods of deconvolving a feature profile of a physical system are provided herein. The present method may include: optimizing a regression between a) a feature profile of a first plurality of distinct components and b) a reference matrix of feature signatures for a second plurality of distinct components, wherein the feature profile is modeled as a linear combination of the reference matrix, and wherein the optimizing includes solving a set of regression coefficients of the regression, wherein the solution minimizes 1) a linear loss function and 2) an L2-norm penalty function; and estimating the fractional representation of one or more distinct components among the second plurality of distinct components present in the sample based on the set of regression coefficients. Systems and computer readable media for performing the subject methods are also provided.

This invention relates to the field of transformer measurement and testing, specifically to a method and system for detecting core loosening in amorphous alloy transformers. First, vibration, current, and temperature data are simultaneously acquired, and wavelet packet decomposition is used to extract the vibration energy characteristics of fine frequency bands. Then, a magnetostrictive model is constructed by combining the load current and its rate of change to obtain the equivalent excitation potential energy, and the nonlinear effects of load and temperature are decoupled by calculating the structural response impedance spectrum. Based on this, the trapezoidal integral method is used to calculate the hysteresis loop area of ​​impedance changing with temperature, quantifying the thermo-mechanical nonlinear loss of the core, and finally obtaining normalized detection indicators for graded early warning. This invention can effectively eliminate interference from varying operating conditions, accurately capture the loosening characteristics of the core caused by thermal accumulation effects, and significantly improve the robustness and accuracy of monitoring.

This invention discloses a magnetic clipping antenna based on nonlinear loss effects, belonging to the field of electromagnetic protection technology. The antenna includes a ferrite substrate, a ground layer, a permanent magnet, and a microstrip structure. The ferrite substrate exhibits tensor permeability characteristics under a DC bias magnetic field, utilizing the spin wave nonlinear loss effect to achieve adaptive attenuation of high-power signals. The microstrip structure employs a helical radiator, which enhances the local radio frequency magnetic field, reduces the nonlinear effect trigger threshold, and improves clipping efficiency. This invention integrates antenna radiation functionality with high-power microwave clipping protection functionality, featuring simple structure, high power capacity, low small-signal transmission loss, and high-power adaptive clipping, effectively achieving electromagnetic protection at the front end of electronic systems.

The invention discloses a control method for generating pulse laser and a pulse laser. The control method comprises the following steps: continuously pumping a gain medium; in the inversion population accumulation process in the gain medium, the linear loss modulator is controlled to work in a first state, the loss of the resonant cavity is reduced to a first loss level through the first state, the pulse laser is driven by the first loss level to enter and undergo a relaxation oscillation process, and the inversion population is stabilized to a steady-state value; the steady-state value corresponds to a laser threshold value under the first loss level; and after the reversal particle number reaches a steady-state value, the linear loss modulator is controlled to be switched to a second state, the loss of the resonant cavity is reduced to a second loss level by the second state, and the resonant cavity is driven to emit pulse laser by the second loss level. According to the invention, relaxation oscillation is introduced into a laser generation process through active guidance of the linear loss modulator, and time domain noise is suppressed, so that a pulse with high peak power and high energy stability is formed.

Methods of deconvolving a feature profile of a physical system are provided herein. The present method may include: optimizing a regression between a) a feature profile of a first plurality of distinct components and b) a reference matrix of feature signatures for a second plurality of distinct components, wherein the feature profile is modeled as a linear combination of the reference matrix, and wherein the optimizing includes solving a set of regression coefficients of the regression, wherein the solution minimizes 1) a linear loss function and 2) an L2-norm penalty function; and estimating the fractional representation of one or more distinct components among the second plurality of distinct components present in the sample based on the set of regression coefficients. Systems and computer readable media for performing the subject methods are also provided.