6 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.

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 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.

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.