41results about How to "Small tolerance range" patented technology

The stabilizer works with any conventional cruise control (CC) and permits automatic CC in slower heavy traffic as it eliminates laborious frequent manual actuation of CC control buttons otherwise needed in such heavy traffic. More frequent automatic CC operation at slower speeds increases fuel efficiency. When the vehicle maintains a speed above a minimum speed and exceeds a brief preset period, the speed stabilizer sets the cruise control at that speed. When the cruise control is thus engaged, the driver's foot can move the accelerator pedal within a small tolerance range without canceling the cruise control. When the pedal is close to the bounds of the tolerance range, a warning signal such as a flashing LED display, is generated by the speed stabilizer to inform the driver that further movement of the pedal will cause acceleration/deceleration, automatically canceling cruise control. Actuation of conventional CC control buttons restores conventional CC.

A central idea of techniques herein is that by means of modulation or variation of the supply signal of a Hall sensor, the useful signal portion in the resulting sensor output signal can be separated from the offset portion during operation of the Hall sensor, with no previous calibration or previous serial tests. That course of the sensor output signal resulting from the modulation or variation of the supply signal can then be evaluated or decomposed relative to the components which can be attributed to the offset portion and the useful signal portion. Thus, the offset portion in the sensor output signal can be determined with no (or a negligibly small) external magnetic field applied or with an external magnetic field applied, in case the external magnetic field is constant within a tolerance range while determining the offset portion.

The invention belongs to the technical field of machining, and particularly relates to a method for drilling a central hole of a cambered forging. The main technical scheme is characterized by comprising the following steps of, determining theoretical coordinates of a reference hole during drilling of a central hole, and calculating theoretical relative coordinates of all central holes according to the external dimension of the cambered forging to be machined; after positioning the cambered forging, detecting actual coordinates of the reference hole, and obtaining coordinate deviations through calculation; obtaining the actual relative coordinates of all the central holes by combining the coordinate deviations with the theoretical relative coordinates of all the central holes; and driving drilling equipment to complete the operation of drilling the central hole according to the actual relative coordinates of all the central holes. The method for drilling central hole of cambered forging has the characteristics that the shape of the cambered forging is not limited, the position precision of the central hole is high, and the central hole distance tolerance is small.

In a method and computer for planning magnetic resonance imaging of a body of an examination object that contains an implant, to be implemented by a magnetic resonance apparatus, position information of the implant is provided to the computer, the position information characterizing a position of the implant in the body of the examination object, and at least one imaging parameter for the magnetic resonance imaging is predetermined before the imaging. At least one load parameter of the implant is established in the computer on the basis of the acquired position information and the at least one predetermined imaging parameter. The magnetic resonance imaging is planned in the computer on the basis of the established load parameter of the implant.

The invention provides a machining device for controlling the size of a tungsten molybdenum wire. The machining device sequentially comprises the following components of a pay-off wheel, a tension adjusting component, an electrolytic cell, a cleaning tank, a drying component, a wire guide wheel, a size measuring instrument and a wire collecting wheel, and further comprises an electrolysis power supply, a controller and a current tester, wherein the input end of the current tester is connected between an electrode cathode of the electrolytic cell and the electrolysis power supply, and the output end of the current tester is electrically connected with the input end of the controller; the output end of the size measuring instrument is electrically connected with the input end of the controller; and the output end of the controller is connected with the current adjusting component of the electrolytic cell. By adopting the machining device, the measuring instrument sends the measured sizeto the controller, when the size fluctuates, the controller outputs a control signal to adjust the electrolysis current, and the size tolerance range of the wire is extremely small ((0.1mm) through accurate control over the electrolysis current, so that the requirements of customers are met, the primary unqualified rate of the wire is greatly reduced, the production efficiency and the input-outputof the wire are improved, and the production cost is reduced.

A clutch device and a method for manufacturing the same are disclosed. The clutch device includes a rotor (1, 8, 11, 14) and a film sheet carrier (5, 9, 12, 15) connected to the rotor (1, 8, 11, 14). The rotor (1, 8, 11, 14) is manufactured by forging or flow forming.

The invention provides horizontal quartz wool processing equipment. The horizontal quartz wool processing equipment comprises a machine frame, wherein the machine frame is provided with a melting burner and a double-roller rod feeder; the melting burner is provided with flame ports corresponding to quartz rods in a one-to-one correspondence mode; the double-roller rod feeder comprises a driving roller and a driven roller which are vertically arranged in parallel at an interval, and the driving roller is driven by a first motor; a double-roller thread guide and a blowing burner are further arranged on the downstream portion of the melting burner; the double-roller thread guide comprises a driving roller located on the lower portion and a pressing roller pressed on the driving roller, the driving roller is driven by a second motor, the pressing roller comprises pressing roller units arranged in one-to-one correspondence with the quartz rods, and the pressing roller units are coaxially arranged; and the blowing burner is provided with flame jet orifices which are arranged in one-to-one correspondence with the beams of quartz wire, and each beam of quartz wire at least comprises one quartz wire. The horizontal quartz wool processing equipment can overcome the technical problems of non-uniform cotton spraying and wire breakage caused by the fact that the structure of existing equipment cannot eliminate diameter errors and the technical problem of dislocation of a quartz rod and quartz fiber.

The invention discloses a combined automatic constant tension pneumatic twine tensioner. The combined automatic constant tension pneumatic twine tensioner comprises twine tensioner bodies and coiling block assemblies connected to the twine tensioner. One twine tensioner body is connected to one or more coiling block assemblies or one coiling block assembly is connected to the plurality of twine tensioner bodies. Each of the twine tensioner bodies comprises a power driving mechanism, a slide valve guiding mechanism and a stress housing and a clutch mechanism. The slide valve guiding mechanism is arranged on the side portion of the power driving mechanism, and the stress housing and the clutch mechanism are arranged on the outer side of the power driving mechanism and the slide valve guiding mechanism. By changing a conventional piston rod to a piston plate and arranging a transmission shaft and the piston plate in a cross manner, the transmission shaft and the piston plate do not interfere with each other; and two air cylinders which are mutually collaborated are adopted as a power driving source, and the steering structure is compact, small in size and large in bearing capacity.

A method for manufacturing a mask includes the steps of: providing a substrate having a surface; forming a photoresist pattern on the substrate, and enabling the photoresist pattern to cover the first part of the surface; a metal frame is provided, the metal frame is provided with an inner wall and defines an in-frame area, and the area of the in-frame area is smaller than that of the surface of the substrate; combining the metal frame and the substrate so that the inner wall is connected with the surface and the photoresist pattern is exposed out of the in-frame region; and performing metal deposition in the in-frame region, and forming a deposited metal layer on the surface. The invention also provides a mask.