362results about How to "High transmission accuracy" patented technology

A rotation angle sensor is provided for determining mechanical angular positions and transposing them into signals transferable through electricity. The sensor includes a housing (2), a rotation indicator (4) located outside of the sensor housing (2a) so that it can rotate and coupled with the sensor element (3) so it operates in a non-contracting manner through the wall of the housing (2). A sensor element (3) is located in the interior of the housing (2). An intermediary element (5) is rotationally supported in the interior of the housing (2) between the sensor element (3) and the rotation indicator (4) and coupled to the rotation indicator (4) in a rotationally fixed, but non-contacting manner.

A harmonic drive includes a circular spline, a flexspline meshed with the circular spline, and a wave generator abutted against the flexspline. Through a special parameter design to correct the perimeter curve of the wave generator, the meshing efficiency between the circular spline and the flexspline is increased, thereby improving the transmission accuracy and reducing the average load.

A memory device has a number of data terminals for transferring data signals and a number of strobe terminals for transferring strobe signals representing timing information of the data. The strobe terminals have a fixed signal level in an inactive mode of the memory device. The memory further includes a controller for reducing any signal instability of the strobe signals when the memory device switches from the inactive mode to a data transfer mode.

A harmonic drive gear reduction mechanism includes a rigid inner spline with 2(n+1) teeth and a tooth module of m, a flexible outer spline inserted in the rigid inner spline has 2n teeth and a tooth module of m, a flexible bearing inserted in the flexible outer spline, and a wave generator inserted in the flexible bearing. A thickness between an inner diameter of the flexible bearing and a pitch diameter of the flexible outer spline is t, a cross sectional profile of the wave generator consists four curves, the first and third curves have a radius of curvature R, R=m (n+1)−t, a central angle of the first and third curves is k, and 10<k≦60, the second and fourth curves and conjunction points between the second, fourth curves and the first, third curves can be first-order differentiated.

The invention discloses a ship or offshore mobile platform watertight equipment monitoring and fault diagnosis system. The ship or offshore mobile platform watertight equipment monitoring and fault diagnosis system includes a watertight equipment monitoring local monitoring system, a ship industrial Ethernet and a bridge remote monitoring alarm diagnosis platform, wherein the watertight equipment monitoring local monitoring system is used for acquiring the state signals of watertight equipment so as to generate monitoring signals, carrying out fault diagnosis on the state signals so as to generate corresponding real-time monitoring signals, and generating corresponding pre-diagnosis information according to diagnosed non-real-time complex faults; the bridge remote monitoring alarm diagnosis platform is connected with the watertight equipment monitoring local monitoring system through the ship industrial Ethernet; the pre-diagnosis information is inputted into the bridge remote monitoring alarm diagnosis platform through the ship industrial Ethernet so as to be applied to final fault diagnosis; and when a fault occurs, shutdown control signals are emitted, so that maintenance information can be further obtained. With the ship or offshore mobile platform watertight equipment monitoring and fault diagnosis system of the invention adopted, two-stage fault diagnosis can be carried out on a whole ship and an offshore mobile platform, and comprehensive monitoring and operation maintenance of watertight integrity and the watertight equipment can be realized.

A method includes a preparation step of preparing a transparent substrate having a precision-polished main surface, a surface shape information obtaining step of obtaining, as surface shape information, height information at a plurality of measurement points on the main surface of the transparent substrate that contacts a mask stage of an exposure apparatus, a simulation step of obtaining, based on the surface shape information and shape information of the mask stage, height information at the plurality of measurement points by simulating the state where the transparent substrate is set in the exposure apparatus, a flatness calculation step of calculating, based on the height information obtained through the simulation, a flatness of the transparent substrate when it is set in the exposure apparatus, a judging step of judging whether or not the calculated flatness satisfies a specification, and a thin film forming step of forming a thin film as serving as a mask pattern, on the main surface of the transparent substrate whose flatness satisfies the specification.

The invention discloses an intermittent linear conveying device, and belongs to the field of conveying equipment for intermittently and linearly conveying objects. A material moving cam (10) is connected with a material moving connecting rod (11), the material moving connecting rod (11) is connected to a vertical guide mechanism in a sliding mode, and a material moving shifting pawl (1) is fixedly connected with the vertical guide mechanism. The vertical guide mechanism is horizontally arranged on a vertical sliding plate (31) in a sliding mode, the vertical sliding plate (31) is vertically arranged in a sliding mode and is connected with a material moving lifting cam (16), the material moving cam (10) drives the material moving shifting pawl (1) to advance or retreat in place through the material moving connecting rod (11), and the material moving lifting cam (16) drives the material moving shifting pawl (1) to ascend and descend through the vertical sliding plate (31). A locating cam (14) is connected with a locating connecting rod (35) which is vertically arranged in a sliding mode, a locating shifting pawl (2) is fixedly connected with the locating connecting rod (35), and the locating cam (14) drives the locating shifting pawl (2) to ascend and descend. The intermittent linear conveying device has the advantages of being accurate in conveying position and reliable in motion, improving work efficiency and the like.

The invention discloses a power module. The power module comprises a motor serving as a power source of the power module, a reducing mechanism used for matching rotational speed and transmitting torque and a motor output mechanism for rotational speed transmission. A stator module of the motor is provided with a hollow groove, the reducing mechanism is contained in the hollow groove, and the motor output mechanism is connected with the motor and the reducing mechanism at the same time. According to the power module, the reducing mechanism is arranged in the stator module of the motor; compared with the mode that in the prior art, a reducing mechanism is externally connected with a motor, the concept is unique, the size of the whole power module is greatly reduced, and the power module is more suitable for being arranged in a small machine; a one-level reducing mechanism or a multi-level reducing mechanism can be selected to be used as the reducing mechanism according to the demand of the whole power module, all the components are relatively independent and complementary, and the power module is flexible and changeable in use.

The invention discloses a data transmission method and system between a capacitive stylus and a touch screen, the capacitive stylus and the touch screen. The method comprises the following steps: the capacitive stylus acquires data to be transmitted; the capacitive stylus generates a first excitation signal according to the data to be transmitted and a receiving time sequence of a receiving electrode in the touch screen; and the capacitive stylus emits the first excitation signal to enable the receiving electrode to decode the first excitation signal according to the receiving time sequence to acquire the data to be transmitted. According to the method provided by the embodiment of the invention, when the capacitive stylus generates the first excitation signal, multi-level systems such as a ternary system and a quinary system are adopted for coding, so that the data transmission time is shortened, the data transmission accuracy is improved, and the user experience is improved.

The invention discloses a Brillouin-scattering-based distributed measurement system, which comprises a first laser unit capable of splitting a laser beam into locally-oscillated light and pump light, a second laser unit capable of modulating laser into an orthogonal frequency division multiplexing light signal which can be used as detection light, a non-coaxial multi-core optical fiber and an optical fiber sensing unit, wherein one end of the non-coaxial multi-core optical fiber is used for receiving the pump light from the first laser unit, and the other end of the non-coaxial multi-core optical fiber is used for receiving the orthogonal frequency division multiplexing light signal; the optical fiber sensing unit is connected with the first and second laser units respectively. According to the Brillouin-scattering-based distributed measurement system, the non-coaxial multi-core optical fiber is used as a sensing optical fiber instead of a single-mode single-core optical fiber, so that the cross sensitivity of temperature and stress can be distinguished; the orthogonal frequency division multiplexing light signal is used as the detection light in the system instead of single-beam laser, so that the scanning speed can be increased, a plurality of frequency points can be scanned at one time, and detection response is quickened. The invention also provides a Brillouin-scattering-based distributed measurement method.

The invention discloses a composite material mechanical arm which comprises a T-shaped beam, wherein a saddle (6) is arranged on the T-shaped beam, an installing support (5) is arranged on the saddle, and the beam, the saddle and the installing support are made of carbon fiber/epoxy composite materials. Due to the adoption of the mechanical arm disclosed by the invention, the weight of the traditional mechanical arm is lightened, the rigidity of the mechanical arm can be improved and the flexibility is reduced; especially, when the mechanical arm rapidly rotates, the transmission precision of the mechanical arm can be greatly improved and the use requirement for high-precision transmission is met due to good damping resistance of the composite materials and small vibration of the mechanical arm. The composite material mechanical arm can be used as a transmission arm of an automatic transmission robot in a car assembling line.

A network terminal has communication section that communicates with other network terminals connected via a network, time-series data creation section that, at timing set beforehand, creates time information including a correspondence between an identification number of the own network terminal and a current time measured by a timer of the own network terminal and creates time-series data registering the time information, and additional registration section that, when the communication section receives the time-series data transmitted from another network terminal, creates time information including a correspondence between the identification number of the own network terminal and a current time measured by the timer of the own network terminal and additionally registers the time information to the time-series data received this time.

An inspection apparatus for a flat display panel comprising a panel inspection part to inspect electrical defects of a panel by applying electric power to the panel, a panel conveying part to load or unload the panel, and a panel feeding part to feed the panel to the panel conveying part. The inspection apparatus being designed to minimize occurrence of backlash in a rotation of a frame, and to enable the frame to rotate with a reduced velocity when starting or stopping the rotation of the frame, so that even a large panel mounted on the stage can be effectively protected by restricting impact and vibration. Furthermore, a driving means is positioned on the carriers, thereby preventing the abnormal operation of the panel conveying part possibly caused by broken pieces of the glass panel. Furthermore, a data plate and a gate base are movably mounted on the stage, so that locations of data probes and gate probes can be easily established according to the size of the panel, thereby minimizing consumption of time and manpower for replacing the adapter and aligning the probes.

The invention discloses a data collection system (DCS) and an information processing method of a computer production simulation model. According to the information processing method of the computer production simulation model, communication modes of different protocols such as an industrial Ethernet communication technology, a process filed bus (PROFIBUS) communication technology, a multi point injection communication mode and an organic photoconductor (OPC) communication technology, wherein the industrial Ethernet communication technology is responsible for an engineer station and an operating personnel station of the DCS system and data exchange between a data server and a controller of the DCS system, the MPI communication technology is responsible for data exchange between each subsidiary controller of the DOS system and a corresponding OPC server, and the OPC communication technology is responsible for data exchange between the OPC servers and the corresponding computer production simulation models. By means of the information processing method of the computer production simulation model, the DCS system is directly or indirectly connected with the computer production simulation model through different communication protocols, and therefore the purposes that process data in the computer production simulation model is accurately and quickly acquired and instruction of the controller is transmitted to the computer production simulation model can be achieved.

A double-side adhesive tape adhering apparatus comprises a supporting plate, an adhesive tape feeding mechanism set, an adhesive tape adhering mechanism set and a shearing mechanism set. The adhesive tape feeding mechanism set comprises a first adhesive tape feeding mechanism and a second adhesive tape feeding mechanism; the first adhesive tape feeding mechanism comprises a first adhesive tape feeding driving part and a first adhesive tape feeding part; the first adhesive tape feeding part is provided with a first adhesive tape feeding block and a first adhesive tape pressing spring plate; the second adhesive tape feeding mechanism comprises a second adhesive tape feeding driving part and a second adhesive tape feeding part; the second adhesive tape feeding part is provided with a second adhesive tape feeding block and a second adhesive tape pressing spring plate; the adhesive tape adhering mechanism set comprises a first adhesive tape adhering mechanism and a second adhesive tape adhering mechanism; the first adhesive tape adhering mechanism comprises a first adhesive tape adhering driver and a first adhesive tape adhering block; the second adhesive tape adhering mechanism comprises a second adhesive tape adhering driver and a second adhesive tape adhering block; and the adhesive tape feeding mechanism set drives the first adhesive tape feeding part and the second adhesive tape feeding part to enable an adhesive tape to be positioned at both sides of a pole piece, the adhesive tape adhering mechanism set drives the first adhesive tape adhering block and the second adhesive tape adhering block to enable the adhesive tape to press the pole piece and the shearing mechanism set shears the adhesive tape. By the double-side adhesive tape adhering apparatus, accuracy of the adhesive tape adhering position can be improved; and the double-side adhesive tape adhering apparatus can be suitable for the pole piece with a small width. The present invention relates to a double-side adhesive tape adhering method.