摘要:
A method and apparatus for communicating between downhole tools without the necessity of routing the communication through a surface module. Communications sent by downhole tools are examined and extracted downhole. If the communications are intended for other downhole tools, the communications are copied to a downlink and send to a specific intended tool, a group of tools, or all the tools. This is all done downhole, significantly reducing the latency between command and response.
摘要:
A method and apparatus for communicating between downhole tools without the necessity of routing the communication through a surface module. Communications sent by downhole tools are examined and extracted downhole. If the communications are intended for other downhole tools, the communications are copied to a downlink and send to a specific intended tool, a group of tools, or all the tools. This is all done downhole, significantly reducing the latency between command and response.
摘要:
A borehole telemetry system including a surface telemetry module, a downhole telemetry module, and a multiplexed datalink between the surface and downhole modules capable of transferring data alternately between an uplink in which date is transferred from the downhole module to the surface module and a downlink in which data is transferred from the surface module to the downhole module; wherein the data link can be switched between a first configuration in which a relatively long time is assigned to the uplink and a relatively short time is assigned to the downlink, and a second configuration in which a relatively long time is assigned to the downlink and a relatively short time is assigned to the uplink. The first configuration can be used to transmit data when logging with downhole tools and the second configuration can be used to program logging tools.
摘要:
The present invention provides a screen printing apparatus and screen printing method which, in screen printing that is to be performed on the upper surface of a circuit board, and the bottom surfaces of recess openings in the upper surface, can efficiently perform a printing work while ensuring an excellent printing quality. In a screen printing apparatus which prints a paste for bonding an electronic component on an upper surface and a bottom-surface of a recess, a printing apparatus 2(1) and a printing apparatus 2(2) which sequentially 10 print the paste in two steps on the circuit board are placed in series. The printing apparatus 2(1) on the upstream side includes a bottom-surface printing mask which is provided in correspondence with the bottom surface of the recess, and a closed squeegee mechanism 36A which butts against and slides over an upper surface of the bottom-surface printing mask to 15 pressurize and supply the paste. The printing apparatus 2(2) on the downstream side includes an upper-surface printing mask which is provided in correspondence with the upper surface and an opened squeegee mechanism 36B which butts against and slides over an upper surface of the upper-surface printing mask to fill the paste into pattern holes.
摘要:
In a returning path operation for moving a closed type squeegee mechanism in a direction opposite to a squeezing direction after an outward path operation where paste is packed into pattern holes by moving the closed type squeegee mechanism in the squeezing direction, the paste supplied to the outside of the closed type squeegee mechanism on an upper surface of a mask is spread due to a deposition member, by moving the deposition member of a paste deposition mechanism in a state close to an upper surface of the mask in the direction opposite to the squeezing direction. Therefore, a paste film having a predetermined thickness is formed.
摘要:
There are provided a screen printing apparatus and a screen printing method which can realize an increase in conversion efficiency of a solar cell by forming a circuit pattern having a large aspect ratio of a sectional shape by increasing the thickness of the circuit pattern. A screen printing apparatus 10 and a screen printing method for forming a belt-shaped circuit pattern on a surface of a substrate 11 include a support table 12 which supports the substrate, a metal mask 1 having a covering portion which covers a part of the surface of the substrate 11, a plurality of apertures from which a part of the substrate 11 is exposed and bridge portions which are provided between the apertures along a direction which intersects a longitudinal direction of a circuit pattern to be formed and a cartridge-type squeegee head 13 which supplies a paste which constitutes a circuit pattern to a surface of the metal mask 1 under a predetermined pressure while causing a squeegee 14 of a predetermined length to slide on an upper surface of the metal mask 1 in a contact fashion.
摘要:
A fluid spray nozzle for spraying fluid, satisfying a formula (r−r0)≦L tan 35°, wherein r0 is a radius of a section having a minimum area of the nozzle when cut perpendicular to a spray direction of the fluid; and r is a radius of cross-sections of an upstream side and a downstream side of the spray direction from the section having a minimum area with a distance of L.
摘要翻译:用于喷射流体的流体喷嘴,满足公式(r-r0)≦̸ L tan 35°,其中r0是垂直于流体喷射方向切割时具有喷嘴最小面积的截面的半径; r为距离为L的最小面积的部分的喷射方向的上游侧和下游侧的横截面的半径。
摘要:
A classifying apparatus including: a rotor with a plurality of annularly disposed blades, which rotates; and a louver with a plurality of blades which are disposed at an outer circumferential portion of the rotor so as to supply from the outer circumferential portion a fluid for dispersing and classifying a powder material, wherein the powder material is supplied to a gap between the rotor and the louver and centrifugally classified into fine powder and coarse powder, and wherein at least one of the following relationships is satisfied: Relationship (1): α≧50° Relationship (2): D2/D1≧1.17 where a denotes an angle formed between imaginary lines connecting the center of the rotor with both ends of each blade of the louver, D1 denotes a diameter of the rotor, and D2 denotes an inner diameter of the louver.
摘要:
There is provided a screen printing apparatus and a screen printing method which can implement printing work with good efficiency while securing a good printing quality in screen printing intended for an upper surface of a substrate and a bottom surface of a recess portion which is opened in the upper surface.In screen printing in which a paste is printed on a cavity substrate, as a printing object, which has an upper surface printing area and a bottom surface printing area on a bottom surface of a recess portion sequentially in two stages by an upstream side printing portion and a downstream side printing portion which have closed-type squeegee mechanisms 36(1), 36(2), respectively, which each include a first sliding contact plate 54A and a second sliding contact plate 54B, when the bottom surface area becomes a printing object, the paste remaining in a depressed portion on an upper surface side of a fitting portion is scooped up by the sliding contact plate which is situated at a rear side in a squeegeeing direction for removal therefrom, whereas when the upper surface printing area becomes a printing object, the paste adhering to an upper surface of an upper surface printing mask is scraped off by the sliding contact plate which is situated at a rear side in a squeegeeing direction.
摘要:
In screen printing on such printing targets as an upper surface of a substrate and a bottom surface of a recess portion which is opened to the upper surface, there are provided a screen printing apparatus and a screen printing method by which printing work can be executed with good efficiency while ensuring a good printing quality.In screen printing a paste on such printing targets as an upper surface printing area on which upper electrodes are formed and a bottom surface printing area which is set on a bottom surface of a recess portion and on which bottom surface electrodes are formed by a closed type squeegee mechanism 13 which includes a first sliding contact plate 44A and a second sliding contact plate 44B, when screen printing the paste on a bottom surface printing region 12a as a printing target, the paste remaining in a depressed portion is scooped up to be removed therefrom by the first sliding contact plate 44A which is positioned at a rear side in a squeegeeing direction, while when screen printing the paste on an upper surface printing region 12b as a printing target, the paste sticking to an upper surface is scraped off by the second sliding contact plate 44B which is positioned at a rear side in a squeegeeing direction.