摘要:
A monitoring and control system is provided having a control device, arranged in a central controller room, which provides commands to power distribution panel switch gear located in the field. The switch gear transmits and receives controlling and monitoring signals through wireless communication applying an evanescent mode. The switch gear has a power circuit connected to a plurality of devices to be operated. The switch gear is a panel comprising metal and non-metal surfaces, so that a portion of wireless waves in the evanescent mode travel out of the panel. A receiver is provided for monitoring the wireless waves that travel out of the panel. The wireless signals are compared with information stored in a diagnostics database, and are diagnostically evaluated to determine whether the signals are within a known normal operating range.
摘要:
In various embodiments, single-crystal aluminum nitride boules and substrates are formed from the vapor phase with controlled levels of impurities such as carbon. Single-crystal aluminum nitride may be heat treated via quasi-isothermal annealing and controlled cooling to improve its ultraviolet absorption coefficient and/or Urbach energy.
摘要:
An electromagnetically operated device includes: a moving member of the electromagnetically operated device; a drive coil that is energized to generate magnetic flux for driving the moving member; a permanent magnet provided between a stationary member and the moving member for holding the moving member; and a holding force adjusting member for adjusting the holding force applied to the moving member by the permanent magnet, wherein the holding force adjusting member is placed at a position that will not be included in the main magnetic path of the magnetic flux caused by the drive coil so as to be removable.
摘要:
An electromagnetically operated switching device according to the present invention includes a pair of electromagnetically operated mechanisms for driving a main circuit contact of a switch via a link mechanism symmetrically arranged with respect to an operational center axis, and a length of a spring retaining plate can be regulated in accordance with a change of a link ratio, which is caused by a design change of the main circuit contact.
摘要:
An electromagnetically operated switching device according to the present invention includes a pair of electromagnetically operated mechanisms for driving a main circuit contact of a switch via a link mechanism symmetrically arranged with respect to an operational center axis, and a length of a spring retaining plate can be regulated in accordance with a change of a link ratio, which is caused by a design change of the main circuit contact.
摘要:
A lid apparatus for opening/closing an opening of a main body includes a lid with working and back faces. An arm attaches the lid to the main body to be operable for opening/closing. The arm includes a first axis pivotally supporting the arm on the main body around the opening, and a second axis swingably supporting the back face of the lid on the arm. The second axis is located between the gravity center of the lid and the first axis. A regulatory member intervenes between the arm and the back face of the lid to set the working face of the lid in parallel with the opening.
摘要:
A display data compression method can execute both irreversible compression and reversible compression, wherein display data are divided into a plurality of two-dimensional blocks, each of which is subjected to compression. In the irreversible compression, display data of each block are subjected to discrete cosine transform, quantization using a quantization table, one-dimensional rearrangement, and Huffman coding using one-dimensional Huffman table. In the reversible compression, display data of each block are subjected to scanning and compression, which are repeatedly performed by changing the scanning method therefor, so as to produce compressed data having the smallest number of effective bits. In expansion, the compressed data are decoded so that the decoded data are combined together over the blocks, thus restoring the original display data.
摘要:
To obtain a signal bypass device capable of bypassing a device irrespective of a type of device to be bypassed and capable of facilitating the installation of the signal bypass device, in carrying out power line communication of transmitting a high-frequency signal using a power line and in transmitting a high-frequency signal using an arbitrary electric wire.When a communication interference device is present in the middle of two electric wires, the signal bypass device includes: split cores each of which is disposed in two electric wires at both ends of the communication interference device; a cable wired through the split cores at both ends of the communication interference device so that the split cores at both ends of the communication interference device function as transformers; and at least one of series capacitors present in the cable and parallel capacitors disposed between lines of the cable, the capacitors being provided near parts where the cable passes through the split cores at both ends of the communication interference device.
摘要:
An outboard engine unit having heat-generating electrical equipment. An intake port of an intake silencer is set at a distance from an engine, and air suctioned from the intake port is unlikely to be affected by heat produced by the engine. Electrical equipment is disposed in a direction of opening of the intake port, and air around the electrical equipment thereby circulates when air is suctioned from the intake port.
摘要:
A thermoplastic polymer composite formed article or a thermoplastic polymer composite formed article formed from a thermoplastic polymer or a thermoplastic polymer and a fiber, wherein the fiber is arranged along a first plane and the molecular chains of the thermoplastic polymer or thermoplastic polymer is oriented in the direction intersecting with the first plane, and the molecular chains of the thermoplastic polymer or thermoplastic polymer has a degree (a) of orientation in a range of 0.5 or more and less than 1.0, and wherein the thermal expansion coefficients of said formed article in the direction along the first plane and in the direction intersecting with the first plane are both 5×10−6 to 50×10−6 (/K), and the difference between the thermal expansion coefficient in the direction along the first plane and the thermal expansion coefficient in the direction intersecting with the first plane is 30×10−6 (/K) or less.