4results about How to "Eliminate potential difference" patented technology

This application discloses a scanning electron microscope device, comprising: an electron gun, the cavity of which is electrically connected to a first reference voltage terminal; a detector disposed inside the cavity of the electron gun and electrically connected to the first reference voltage terminal; an amplifier, the input terminal of which is electrically connected to the output terminal of the detector and electrically connected to the first reference voltage terminal; and an analog-to-digital converter (ADC), the input terminal of which is electrically connected to the output terminal of the amplifier, a first terminal of the ADC's power supply being electrically connected to the ADC, and a second terminal of the ADC's power supply being electrically connected to a second reference voltage terminal. The aforementioned scanning electron microscope device can improve the quality of semiconductor images generated by the scanning electron microscope.

The utility model relates to the technical field of whole-body safety belts, in particular to a whole-body safety belt with an anti-static function, which comprises a waist bandage, a chest bandage and an extension ring, the chest bandage is arranged above the waist bandage, the bottom of the chest bandage is connected with the top of the waist bandage in a sewing mode, and the extension ring is arranged on the waist bandage. A fixing bandage is arranged at the bottom of the waist bandage, a leg bandage is arranged at the bottom of the fixing bandage, the interior of the leg bandage is connected with the extension ring in an embedded mode, fluff on the bandage is prevented from directly rubbing a user to generate static electricity, meanwhile, a static bracelet is arranged, the static bracelet is fixed to the wrist of the user, and therefore the static electricity can be effectively prevented from being generated. The electrostatic bracelet is in contact with the skin of a user, so that the human body and the whole-body safety belt are at the same potential, the potential difference between the human body and the equipment is eliminated, electrostatic discharge is prevented, static electricity generated after long-term use is effectively prevented, and the safety of the device is embodied.

The utility model discloses lightning -resistant electromagnetic shielding cabin structure of wind generating set variable pitch system relates to wind generating set shielding cabin field, including cabin body, one side fixed mounting of cabin body has hinged seat, one side of cabin body is provided with hatch, and the hinged seat is rotatably installed between hatch, shielding subassembly, shielding subassembly sets up inside cabin body, wherein, shielding subassembly includes ground point, shielding part. The utility model discloses through setting up cabin body shell of composite structure, is cabin body, middle layer, inner layer respectively, when high frequency electromagnetic wave is transmitted into cabin, produces intense " reflection effect " in aluminum alloy, stainless steel surface layer, and reflection loss can reach 20 40db, realizes high frequency radiation shielding, and when low frequency radiation passes through nickel iron alloy surface, can " bind " low frequency magnetic field in metal inside, through magnetic hysteresis loss fast attenuation magnetic field energy, avoids the influence of radiation to cabin internal structural member.

This application relates to the field of vehicle technology and aims to solve the technical problem that the protective film layer of some known vehicle components is difficult to simultaneously improve sealing performance, acid and alkali resistance, and reduce processing costs. It provides a surface treatment method, processing method, vehicle component, and vehicle. The surface treatment method includes: providing a substrate; forming an electrophoretic paint on the surface of the substrate through a first electrophoretic process to obtain an electrophoretic paint material layer, wherein the electrophoretic paint material includes a resin matrix and a conductive material; the conductive material includes conductive carbon black, graphene, and graphite, wherein the mass percentage of the conductive material ranges from 5.5% to 11%, and the mass percentage of the resin matrix ranges from 15% to 20%; and thermosetting the electrophoretic paint material layer to obtain a conductive film layer. The beneficial effects of this application are improved sealing performance and acid and alkali resistance of vehicle components, and reduced processing costs.