5 results about "Magnetic intensity" patented technology

The utility model discloses a device of inducing magnetic filler to orient in carbon fiber composite material belongs to composite material preparation technical field. The device includes two equal size, equal surface magnetic intensity's permanent magnet, hole stainless steel support frame and stainless steel round bar. The support frame sets the circular hole, and the upper and lower side round bar restricts the permanent magnet to form the inhomogeneous magnetic field, and the middle round bar bears the composite material mould. The diameter of stainless steel round bar is less than the hole diameter, can adjust the permanent magnet spacing and change the magnetic field intensity, and the permanent magnet is high -temperature -resistant material, is suitable for high -temperature solidification environment. The device passes through the magnetic field and induces the filler such as magnetic boron nitride to orient in the composite material perpendicular to the carbon fiber direction, solves the problem of the mechanical property decline caused by traditional high filler amount, significantly improves the thermal conductivity under the low filler content, and retains the material mechanical strength. Simple structure is adjustable, and adapts to different size composite material preparation, and has practicality and industrial application potential.

This invention provides a method and system for destacking stamped automotive beams based on dual-dimensional magnetic force control. The method includes acquiring workpiece parameters of the workpiece to be destacking; determining the number of magnets to be activated according to the workpiece length in a preset magnet quantity mapping rule; and determining a target magnetic force intensity level according to the workpiece thickness in a preset magnetic force intensity mapping relationship. It then determines whether the workpiece meets the linkage condition. If the linkage condition is met, the number of magnets to be activated is adjusted to the linkage quantity value, and the target magnetic force intensity level is adjusted to the linkage intensity level. Otherwise, the determined number of magnets to be activated and the target magnetic force intensity level remain unchanged as the final control parameters. Based on the final control parameters, the corresponding number and position of magnets are activated, and the magnetization intensity of the activated magnets is adjusted to the output value corresponding to the target magnetic force intensity level. This effectively overcomes a long-standing technical bottleneck in the industry.

This invention provides a method for detecting misassembly of Heilbeck magnetic components, comprising the following steps: S1, using a gaussmeter to scan along the magnet arrangement direction of a standard magnetic component, collecting the magnetic intensity value and polarity information, using the sampling position as the abscissa and the polarized magnetic intensity as the ordinate to generate a standard magnetic distribution characteristic curve, i.e., a standard curve, and simultaneously extracting the characteristic parameters of the standard curve; S2, using a gaussmeter to scan the magnetic component to be tested, the scanning method being consistent with that of the standard magnetic component, generating the magnetic distribution characteristic curve to be tested, i.e., the test curve, and simultaneously extracting the characteristic parameters of the test curve; S3, comparing the characteristic parameters of the test curve with those of the standard curve, and determining whether there is an assembly error in the magnetic component to be tested according to a preset judgment rule, and determining the type and location of the misassembly. This application solves the problems of poor universality and high replacement cost of existing detection methods, and realizes rapid adaptation detection of Heilbeck magnetic components of different specifications.

This invention discloses a wireless real-time data acquisition system for coal magnetic intensity and marker gas concentration, belonging to the field of coal spontaneous combustion experiment technology. The method includes: mixing dry air with a mixed gas and then introducing it into a vertical tubular furnace; placing a coal sample in the furnace for programmed temperature rise; arranging temperature and magnetic intensity sensors within the furnace and connecting them to a microcontroller unit to collect temperature and magnetic intensity data; after programmed temperature rise and oxidation, the gas enters a flow meter and then flows through a gas concentration sensor; the gas concentration sensor is connected to the microcontroller unit to collect the marker gas concentration; the microcontroller unit communicates with a WiFi module via RS485 or a serial port, and the WiFi module transmits the collected data to a mobile application using the MQTT / TCP communication protocol. This invention solves the problem of wireless real-time acquisition of coal magnetic intensity and marker gas concentration during programmed temperature rise experiments.

This application proposes a non-magnetic liner structure for magnetic micro-area coding in hydraulic cylinders, disposed between the inner wall of the hydraulic cylinder barrel and the working cavity of the hydraulic cylinder. The non-magnetic liner structure comprises: a non-magnetic liner body made of a non-ferromagnetic material, in a cylindrical shape, with its outer wall fixedly connected to the inner wall of the hydraulic cylinder barrel; and multiple magnetic micro-area units, spaced axially along the inner surface or interior of the non-magnetic liner body. Each magnetic micro-area unit differs in axial position, magnetization direction, and / or magnetic intensity level to form a magnetic micro-area coding band. The technical solution proposed in this application, by providing a non-magnetic liner layer on the inner wall of the hydraulic cylinder barrel and arranging the magnetic micro-area coding within the liner structure, weakens the influence of the cylinder barrel body on the magnetic field, thereby improving the stability and consistency of magnetic area coding recognition.