13 results about "Em coupling" patented technology

The utility model discloses a coupling machine for TOSA production, which comprises a coupling machine body, one side of the coupling machine body is provided with an anti-collision device, the anti-collision device comprises a frame body, a first shock absorber, a push rod, a vertical plate, a supporting block, a second shock absorber and an inclined rod, the frame body is arranged on one side of the coupling machine body, and the first shock absorber is arranged on the frame body. One end of a first shock absorber is welded to each of the upper end and the lower end of the inner wall of the frame body, one end of a push rod is welded to the other end of each first shock absorber, a vertical plate is welded to the other end of each push rod, a supporting block is welded to the center of an inner cavity of the frame body, and one end of a second shock absorber is welded to each of the upper end and the lower end of the supporting block. According to the coupling machine for TOSA production, through the coupling machine body, the gear motor, the shell, the first gear, the second gear, the rotating shaft, the blades and other structures, the coupling machine can effectively conduct heat dissipation treatment on the machine body, the machine body does not need to be kept in a high-temperature state for a long time, and the use quality cannot be affected.

An embodiment of the present invention discloses an inverter with separable-phase output and a design method for its coupled inductor. By regarding the sine modulation signal of the inverter topology circuit and the coupling coefficient as variables, a first functional relationship is obtained, and the first functional relationship is analyzed to obtain a second functional relationship between the coupled inductor and the maximum value of the first ripple current and the coupling coefficient under the selected connection mode of the inverter topology circuit. Based on the maximum value of the first ripple current determined by the second functional relationship and the maximum value of the second ripple current on the discrete inductor under the condition that the inverter topology circuit is connected with a discrete inductor, a target coupling coefficient that satisfies the maximum value of the first ripple current corresponding to each inductor coil being less than the maximum value of the second ripple current is determined, so that the self-inductance of the coupled inductor can be smaller relative to the inverter connected with a discrete inductor by the inverter topology circuit, and further the volume and weight of the coupled inductor can be smaller, which is beneficial to reducing the core loss.

This application relates to the technical field of current transformer measurement, and specifically relates to a method for suppressing measurement interference of a current transformer under high-voltage strong electromagnetic interference. The method includes: collecting relevant signals for analyzing the interference impact on the current transformer measurement; for the high-frequency interference generated by pulse noise and instantaneous surges, analyzing the composite degree of the high-frequency interference caused by the two factors, and analyzing its coupling characteristics to quantify the measurement interference intensity characteristics of the high-frequency noise received by the current transformer at historical moments; using the measurement interference intensity characteristics to improve the step size parameter in the LMS adaptive filtering algorithm to obtain the measured current signal after interference suppression. The purpose of this application is to accurately quantify the spatio-temporal correlation characteristics of pulse-surges, so that the improved LMS algorithm can establish a dynamic mapping relationship of interference intensity and reduce the risk of measurement interference of the current transformer.

The invention discloses a butterfly coil current mode-based coil decoupling method and a butterfly coil current mode-based model construction method. The butterfly coil current mode-based coil decoupling method comprises the following steps of: setting two butterfly coils to be in an initial overlapping state that middle conductors are collinear and partially overlapped in a collinear direction; the relative spatial poses of the two coils are adjusted, and the resonant frequency of the coupling part of the two coils is monitored in real time; and when it is monitored that the common-mode resonant frequency and the differential-mode resonant frequency in the resonant frequencies tend to be consistent, determining the current pose as a target decoupling pose. The coupling problem of the butterfly coil array is solved, an additional decoupling circuit is not needed, efficient decoupling can be achieved only through pure structure adjustment, and the channel isolation and parallel imaging performance are remarkably improved while the near-field advantage of the butterfly coil is kept.

Double cage (21) for a clamping element freewheel, comprising an inner cage ring (22) and an outer cage ring (23), wherein the inner cage ring (22) has a clamping element area (22a) for receiving clamping elements (24) and the outer cage ring (23) has a clamping element area (23a) for receiving the clamping elements (24), characterized in that at least one of the inner cage ring (22) and the outer cage ring (23) is actively adjustable relative to the other of the outer cage ring (23) and the inner cage ring (22), wherein the inner cage ring (22) has a coupling area (22b) via which the inner cage ring (22) can be coupled to an actuator (80), wherein the outer cage ring (23) has a coupling area (23b) via which the outer cage ring (23) can be coupled to the actuator (80), wherein the coupling area (22b) of the inner cage ring (22) and the coupling area (23b) of the outer cage ring (23) are designed such thatthat the inner cage ring (22) is rotatable relative to the outer cage ring (23) in response to an action on its coupling area (22b), wherein the coupling area (22b) of the inner cage ring (22) has an inner cage groove (22c) for receiving an engagement element (43, 93), wherein the inner cage groove (22c) extends along a path which runs at least partially obliquely to the circumferential direction of the inner cage ring (22).

Coupling device for a towing vehicle with an object detection means (10) attached thereto, wherein the coupling device has a coupling body (30) in the form of a fifth wheel coupling plate (40) and a locking mechanism (31) with which a coupling means (50) arranged on a trailer vehicle in the form of a kingpin (51) is detachably held in its end position (E) on the coupling body (30), and the coupling body (30) has a free installation space (33) bounded by a coupling means insertion contour (32) extending in a longitudinal axis (x), into which the coupling means (50) is at least partially immersed during coupling until its end position (E) is reached, characterized in thatthat the object recognition means (10) is movably mounted in the coupling means insertion contour (32) between a functional position (11) projecting into the free installation space (33) and an escape position (12) recessed in the coupling means insertion contour (32).

The invention relates to an electrical contact coupling (8) for an automatic central buffer coupling (1) of a track-guided vehicle, wherein the electrical contact coupling (8) has a housing (9) which, when required, is longitudinally displaceable in the longitudinal direction relative to a coupling head (2) of the central buffer coupling (1) between a first position, in which the electrical contact coupling (8) is in its inoperative position ready for coupling, and a second position, in which the electrical contact coupling (8) is in its coupled position. According to the invention, it is provided in particular that a movement mechanism of the housing (9) of the electrical contact coupling (8) is assigned a locking mechanism which is designed to lock the housing (9) of the electrical contact coupling (8) in the first position until the locking mechanism is mechanically released by a corresponding release element of a mating coupling and / or an electrical contact coupling of a mating coupling, in particular during a coupling operation between the electrical contact coupling (8) and the mating coupling or the electrical contact coupling of the mating coupling.

The utility model discloses a wide dynamic range power detection circuit, which relates to the field of radio communication detection circuits, aims to obtain a wide range and high precision detection circuit, and adopts the technical scheme that the wide dynamic range power detection circuit comprises a coupling circuit, the coupling circuit is connected with a detected signal, the output end of the coupling circuit is connected with an amplifying circuit and then connected with a filter circuit, and the amplifying circuit is connected with the filter circuit. A main path of the coupling circuit is in direct connection with a signal output end; the rear end of the filter circuit is connected with a level detection circuit, the level detection circuit adopts a logarithmic amplification level conversion circuit, the rear end of the level detection circuit is connected with a microprocessor with an ADC (Analog to Digital Converter) port, and the microprocessor is connected with a display screen. After the detected signal is coupled, amplified and filtered, the precision and accuracy of the detected signal can be better ensured, so that the precision meeting the requirement can be obtained while a wide dynamic range is obtained.

Table (1), comprising at least one tabletop (2) and a tabletop extension (3) with a first supplementary part (3a) and a second supplementary part (3b), the relative mobility of which to each other and to the tabletop (2) allows the tabletop extension (3) to be moved from a storage position (S1) to a working position (S2) that increases the table surface (F) of the tabletop (2) and back again, wherein the two supplementary parts (3a, 3b) are movably connected to a guide element (6), in particular a rod-shaped one, which is slidably supported on at least one rail element (7a, 7b) with respect to a displacement direction (V), preferably perpendicular to a longitudinal direction (X) of the guide element (6), and wherein a pivoting device (8) is articulated to the first supplementary part (3a), which is rotatably mounted on a holding device (9) such thatthat the first supplementary part (3a), which moves during a displacement of the tabletop extension (3) together with the guide means (6) which moves along the displacement direction (V), can be converted into a combined rotary and translational movement, characterized in that a mounting device (10) is articulated in a coupling area (D) of the second supplementary part (3b), which is rotatably mounted on at least one arm (13a, 14a), wherein the coupling area (D) is pivotable on a circular path segment (K1) around the arm (13a, 14a) such that during a displacement of the tabletop extension (3) between its storage position (S1) and its operating position (S2), the second supplementary part (3b) passes a high point (T) of the circular path segment (K2) located above the table surface (F), at which at least a part of its coupling area (D) is furthest from the table surface (F). is.,

Holding system (1) for mounting on a particularly vertical wall (2), with at least one object holder (7) designed to hold an object (3), which can be glued to the wall (2) by means of a double-sided adhesive self-adhesive unit (5), characterized by - a mounting frame (4) having a front side (17) and a rear side (18), which is penetrated by at least one positioning window (16) open to the front side (17) and to the rear side (18) and which has a self-adhesive device (23) on the rear side, with which it can be glued to a wall (2) in a wall position, - at least one double-sided self-adhesive unit (5) which has a rear adhesive surface (33) and which is designed to be glued to the wall (2) through the at least one positioning window (16) of the mounting frame (4) occupying the wall position, taking up an adhesive position with its rear adhesive surface (33), - and at least one fastening plate (6) having a front side (42) and a rear side (43), which can be inserted into a positioning window (16) of the mounting frame (4) with an orientation predetermined by a positive fit with respect to the mounting frame (4) and, while assuming a fastening position resulting therefrom, can be glued with its rear side (43) to the front adhesive surface (34) of the self-adhesive unit (5) located in the adhesive position in the positioning window (16) and which has on its front side (42) a fastening structure (47) designed for fastening the object holder (7), - wherein the object holder (7) has on its rear side (51) a coupling device (48) adapted to the fastening structure (47) of the at least one fastening plate (6) and can be fastened with its coupling device (48) in a holding position to the fastening structure (47) of the at least one fastening plate (6) located in the fastening position, with at least partial frontal covering of the mounting frame (4).

Disclosed is an RF biosensing system using an RF sensor including a glucose-responsive hydrogel-based microneedle. The RF biosensing system measures a sensing signal with a VNA by detecting a sensing signal by using a reader antenna and a reader antenna sensing circuit through a readout coil on the basis of RF biosensing and wireless transmission, via EM coupling between a glucose-responsive hydrogel-based microneedle, which is provided below a flexible substrate so as to be minimally invasively applied in vivo to the skin surface (on-site) of epidermis / dermis / hypodermis of the skin or to skin / fat / muscle tissue, and an RF sensor, which is positioned over the flexible substrate and uses the difference in resonant frequencies within frequencies of 400 to 3,000 MHz, and performs biosensing such as detection of proteins, glucose, and fat in the skin, on the basis of changes in the capacitance of a sensing antenna circuit (LC resonator) of the RF sensor, shifts in resonant frequencies of the LC resonator, and changes in S-parameters.

Disclosed is an RF biosensing system using an RF sensor including a glucose-responsive hydrogel-based microneedle. The RF biosensing system measures a sensing signal with a VNA by detecting a sensing signal by using a reader antenna and a reader antenna sensing circuit through a readout coil on the basis of RF biosensing and wireless transmission, via EM coupling between a glucose-responsive hydrogel-based microneedle, which is provided below a flexible substrate so as to be minimally invasively applied in vivo to the skin surface (on-site) of epidermis / dermis / hypodermis of the skin or to skin / fat / muscle tissue, and an RF sensor, which is positioned over the flexible substrate and uses the difference in resonant frequencies within frequencies of 400 to 3,000 MHz, and performs biosensing such as detection of proteins, glucose, and fat in the skin, on the basis of changes in the capacitance of a sensing antenna circuit (LC resonator) of the RF sensor, shifts in resonant frequencies of the LC resonator, and changes in S-parameters.

We provide a general two dimensional grating coupler system that maximizes its coupling power, while simultaneously minimizing the polarization dependent loss ( PDL) for any linearly polarized input. This approach solves the long lasting problem of complete polarization insensitive fiber to chip grating coupler designs, using a passive device with no active control. In other embodiments, an arbitrary elliptical input state of polarization is dealt with using a passive scattering structure having two waveguide outputs into which the input free space beam is split according to its polarization components. A simple active control scheme is then used to combine these two waveguide outputs in phase to provide a single output with minimal PDL for arbitrary input state of polarization.