摘要：【中文】本发明公开了一种满足焊盘位置高精度要求的印制电路板的制作方法，包括以下步骤：(1)采用丝网印刷法印刷印制电路板的焊盘，然后进行UV固化处理；(2)采用丝网印刷法在步骤(1)得到的印制电路板上印刷线路图形，然后进行UV固化处理；(3)对步骤(2)得到的印制电路板进行蚀刻、油墨剥离处理；(4)采用丝网印刷法在步骤(3)得到的印制电路板的表面印刷阻焊油墨，然后进行UV固化处理。通过上述方式，本发明能够满足对于焊盘位置的高精度要求；此外采用丝网印刷法的制作成本相对较低，且该制作方法简单、容易进行推广应用。 【EN】The invention discloses a manufacturing method of a printed circuit board meeting the high-precision requirement of a pad position, which comprises the following steps of: (1) printing a bonding pad of a printed circuit board by adopting a screen printing method, and then carrying out UV curing treatment; (2) printing a circuit pattern on the printed circuit board obtained in the step (1) by adopting a screen printing method, and then carrying out UV curing treatment; (3) carrying out etching and ink stripping treatment on the printed circuit board obtained in the step (2); (4) and (4) printing solder resist ink on the surface of the printed circuit board obtained in the step (3) by adopting a screen printing method, and then carrying out UV curing treatment. By the mode, the high-precision requirement on the position of the bonding pad can be met; in addition, the manufacturing cost of the screen printing method is relatively low, and the manufacturing method is simple and easy to popularize and apply.

摘要：【中文】本发明属于复合材料构件制造技术的技术领域，具体涉及一种双侧零度纤维T型长桁成型的加工方法，其包括工装准备、裁片剪裁下料、长桁零度纤维预成型、长桁组合和长桁封装及固化等步骤。本发明提供的方法采用模具及盖板作为铺叠定位基准和采用新的组合固化方式，既简化了铺叠过程，限制了零度纤维填充位置，又使固化时长桁内部压力分布均匀。 【EN】The invention belongs to the technical field of composite material member manufacturing technology, and particularly relates to a processing method for forming a bilateral zero-degree fiber T-shaped stringer. The method provided by the invention adopts the die and the cover plate as the laying positioning reference and adopts a new combined curing mode, thereby simplifying the laying process, limiting the filling position of zero-degree fibers and ensuring that the pressure inside the stringer is uniformly distributed during curing.

摘要：【中文】本发明提出一种本发明提出一种高共模抑制比生理电信号放大电路，实现在抑制直流干扰的情况下,提供极高的共模抑制比，满足对生理电信号的高精度测量的需求，其特征在于，包括：前级放大电路和干扰抑制及输出电路，所述前级放大电路包括放大器A1和A2，所述干扰抑制及输出电路包括放大器A3和A4，电阻R7、R8、R9和R10，以及电容C1和C2；其中，所述放大器A1、A2和A4为仪表放大器；所述放大器A1的IN‑端与放大器A2的IN+端共同连接并获取输入信号IN‑，所述放大器A1的IN+端与放大器A2的IN‑端共同连接并获取输入信号IN+；所述放大器A1的输出端经由电容C1连接至放大器A4的IN‑端，所述放大器A2的输出端经由电容C2连接至放大器A4的IN+端。 【EN】The invention provides a high common mode rejection ratio physiological electric signal amplifying circuit, which can provide extremely high common mode rejection ratio under the condition of inhibiting direct current interference and meet the requirement of high-precision measurement of physiological electric signals, and is characterized by comprising the following components: the pre-amplifier circuit comprises amplifiers A1 and A2, and the interference suppression and output circuit comprises amplifiers A3 and A4, resistors R7, R8, R9 and R10, and capacitors C1 and C2; wherein the amplifiers a1, a2, and a4 are instrumentation amplifiers; the IN-terminal of the amplifier A1 is commonly connected with the IN + terminal of the amplifier A2 to obtain an input signal IN-, and the IN + terminal of the amplifier A1 is commonly connected with the IN-terminal of the amplifier A2 to obtain an input signal IN +; the output terminal of the amplifier a1 is connected to the IN-terminal of the amplifier a4 via a capacitor C1, and the output terminal of the amplifier a2 is connected to the IN + terminal of the amplifier a4 via a capacitor C2.

摘要：【中文】本发明公开了一种新型防水挡板，包括：挡板本体(1)，所述挡板本体(1)上表面开设有插槽(2)，所述挡板本体的(1)底面设有与插槽(2)适配的凸起，所述挡板开口处设有防水条(3)，所述挡板内侧面设有水位传感装置槽(4)。本发明通过挡板开口处设置防水条提高了防水挡板的防水性能，通过挡板内侧设置水位传感装置槽，便于安装水位传感装置。 【EN】The invention discloses a novel waterproof baffle, which comprises: the baffle comprises a baffle body (1), wherein a slot (2) is formed in the upper surface of the baffle body (1), a bulge matched with the slot (2) is formed in the bottom surface (1) of the baffle body, a waterproof strip (3) is arranged at the position of an opening of the baffle, and a water level sensing device groove (4) is formed in the inner side surface of the baffle. The waterproof strip is arranged at the opening of the baffle plate, so that the waterproof performance of the waterproof baffle plate is improved, and the water level sensing device groove is arranged on the inner side of the baffle plate, so that the water level sensing device is convenient to install.

摘要：【中文】本发明公开了一种应用于磁悬浮轴承的环形拓扑四桥臂控制装置及方法，属于磁悬浮轴承控制领域，包括4个单向导通器件、4个可控开关、4个绕组和电源。改变各个可控开关在一个开关周期内的导通时间控制通过各绕组的电流，通过将4个绕组分为两组，控制绕组中共模电流与差模电流的方式，实现对磁悬浮轴承中控制两个自由度的四个绕组电流的控制。本发明4个绕组环形连接，对于单个八极径向磁轴承的四个绕组只需要四个桥臂进行控制，对普通的桥式电路中单个线圈需要两个桥臂控制的方式，有效提高了器件的利用率。同时本发明提供的控制器在对两个绕组之间的差分电流进行控制时，可实现较高的电压利用率。 【EN】The invention discloses a ring topology four-bridge arm control device and method applied to a magnetic suspension bearing, belongs to the field of magnetic suspension bearing control, and comprises 4 one-way conduction devices, 4 controllable switches, 4 windings and a power supply. The current passing through each winding is controlled by changing the conduction time of each controllable switch in one switching period, and the control of the currents of the four windings for controlling two degrees of freedom in the magnetic suspension bearing is realized by dividing the 4 windings into two groups and controlling the common mode current and the differential mode current in the windings. The invention has the advantages that the 4 windings are annularly connected, only four bridge arms are needed for controlling the four windings of the single octupole radial magnetic bearing, and two bridge arms are needed for controlling a single coil in a common bridge circuit, so that the utilization rate of devices is effectively improved. Meanwhile, when the controller provided by the invention is used for controlling the differential current between the two windings, higher voltage utilization rate can be realized.

摘要：【中文】本发明提供一种轴承定位的可靠性高的压缩机。压缩机包括主轴、叶轮和轴承，所述叶轮和所述轴承均设置于所述主轴上，且所述叶轮的端部与所述轴承抵接。本发明提供的轴承定位的可靠性高的压缩机，直接利用叶轮对轴承进行定位预紧，利用叶轮在压缩机中的小过渡配合、定位精度高以及叶轮的锁紧螺母提供的轴向力保证轴承的可靠性要求，同时简化压缩机的结构，方便对轴承的安装和拆卸，设置锁紧环能够避免对叶轮加工的难度，有效拓展滚动轴承在离心式压缩机上的应用，提高压缩机运行时轴系的可靠性、装配性能和运行性能。 【EN】The invention provides a compressor with high reliability of bearing positioning. The compressor comprises a main shaft, an impeller and a bearing, wherein the impeller and the bearing are arranged on the main shaft, and the end part of the impeller is abutted to the bearing. The compressor with high bearing positioning reliability provided by the invention directly utilizes the impeller to position and pre-tighten the bearing, ensures the reliability requirement of the bearing by utilizing the small transition fit and high positioning precision of the impeller in the compressor and the axial force provided by the locking nut of the impeller, simplifies the structure of the compressor, is convenient to install and disassemble the bearing, can avoid the difficulty in processing the impeller by arranging the locking ring, effectively expands the application of a rolling bearing on a centrifugal compressor, and improves the reliability, assembly performance and running performance of a shafting when the compressor runs.

摘要：【中文】本申请提供了一种压缩机及空调机组。该压缩机包括压缩机基体、电机轴、叶轮和密封件，电机轴可转动地安装在压缩机基体中，叶轮安装在电机轴上，密封件安装在电机轴上。密封件的正面和叶轮的背面之间构成第一腔体，密封件的背面和压缩机基体之间构成第二腔体。加压组件与第一腔体相连，加压组件用于向第一腔体内供应冷媒以维持第一腔体的压力与叶轮的排气口的压力相等。应用本发明的技术方案，使得气动流道中的叶轮的排气口的压力泄露损失控制在最小的范围内，从而提高压缩机的叶轮效率，使压缩机的性能也得到提升，提高空调机组运行的能效。 【EN】The application provides a compressor and an air conditioning unit. The compressor comprises a compressor base body, a motor shaft, an impeller and a sealing element, wherein the motor shaft is rotatably arranged in the compressor base body, the impeller is arranged on the motor shaft, and the sealing element is arranged on the motor shaft. A first cavity is formed between the front surface of the sealing element and the back surface of the impeller, and a second cavity is formed between the back surface of the sealing element and the compressor base body. The pressurizing assembly is connected with the first cavity and used for supplying a refrigerant into the first cavity so as to maintain the pressure of the first cavity equal to the pressure of the exhaust port of the impeller. By applying the technical scheme of the invention, the pressure leakage loss of the exhaust port of the impeller in the pneumatic flow channel is controlled in the minimum range, so that the impeller efficiency of the compressor is improved, the performance of the compressor is also improved, and the operation energy efficiency of the air conditioning unit is improved.

摘要：【中文】本发明涉及一种从牛磺酸制备的反应体系中除去杂质，进而制备牛磺酸的方法。包括如下步骤：将所述含有牛磺酸碱金属盐的溶液通过碱性阴离子交换树脂柱，使得所述牛磺酸碱金属盐被吸附在所述碱性阴离子交换树脂上，并收集得到洗脱液；用碱性溶液脱附被所述碱性阴离子交换树脂吸附的牛磺酸碱金属盐，得到脱附液；将所述脱附液进行酸化，得到牛磺酸。在本发明除去制备牛磺酸反应体系中杂质的过程中，未引入其他有机溶剂进行除杂，而是采用碱性阴离子交换树脂柱吸附有用物质，分离有机杂质和/或电中性杂质进行除杂。本发明所提供的方法，不仅能够提高牛磺酸产品收率，并且生产工艺简单，且能降低生产能耗，有利于环保。 【EN】The invention relates to a method for preparing taurine by removing impurities from a reaction system for preparing taurine. The method comprises the following steps: passing the solution containing alkali taurate through a basic anion exchange resin column so that the alkali taurate is adsorbed on the basic anion exchange resin, and collecting the eluate; desorbing the alkali taurate salt adsorbed by the basic anion exchange resin with an alkaline solution to obtain a desorption solution; and acidifying the desorption solution to obtain taurine. In the process of removing impurities in the reaction system for preparing taurine, other organic solvents are not introduced for impurity removal, but a basic anion exchange resin column is adopted for adsorbing useful substances, and organic impurities and/or electrically neutral impurities are separated for impurity removal. The method provided by the invention can improve the yield of the taurine product, has a simple production process, can reduce the production energy consumption, and is beneficial to environmental protection.

摘要：【中文】本发明公开了一种近眼显示光机模组检测装置，包括测试治具、工业相机和处理器，其中，测试治具，用于控制工业相机，和夹持光机模组；工业相机，用于获取光机模组显示的图样；处理器，用于根据工业相机获取的图样，确定光机模组的性能。本发明能够实现对近眼显示光机模组的重要参数，如视场角、眼动范围等，进行可靠有效的测量，也可以对近眼显示光机模组的其他技术参数，如对比度、清晰度等，进行测量。具有成本低，体积小，检测效果准确的良好特性。 【EN】The invention discloses a near-to-eye display optical-mechanical module detection device which comprises a test fixture, an industrial camera and a processor, wherein the test fixture is used for controlling the industrial camera and clamping the optical-mechanical module; the industrial camera is used for acquiring the pattern displayed by the optical-mechanical module; and the processor is used for determining the performance of the optical-mechanical module according to the pattern acquired by the industrial camera. The invention can realize reliable and effective measurement of important parameters of the near-eye display optical-mechanical module, such as the field angle, the eye movement range and the like, and can also measure other technical parameters of the near-eye display optical-mechanical module, such as the contrast, the definition and the like. The device has the good characteristics of low cost, small volume and accurate detection effect.

摘要：【中文】本发明提供了一种基于图像匹配的飞行器离地高度测量方法，利用相机视觉传感器获取三幅不同角度的实时地面景象图像，进行实时图像特征匹配，根据匹配结果完成飞行器离地高度测量，本发明仅通过获取三幅不同位置实时图像完成飞行器高度测量，不需要像机焦距等设备额外信息，降低了对设备需求，适用平台范围较广。通过实时图匹配，不需要事先知道图像中包含哪些信息，环境适用性较好。通过拍摄倾斜角设计，降低了对实时图像要求，在动态环境下也具有较好性能。 【EN】The invention provides an aircraft ground clearance measuring method based on image matching, which is characterized in that a camera vision sensor is used for acquiring three real-time ground scene images at different angles, real-time image feature matching is carried out, and the aircraft ground clearance measurement is completed according to a matching result. Through real-time image matching, which information contained in the image does not need to be known in advance, and the environment applicability is better. Through the design of the shooting inclination angle, the requirement on a real-time image is reduced, and the method has better performance in a dynamic environment.