15 results about "Electromagnetic radiation" patented technology

The invention provides a system of monitoring electromagnetic radiation. The system of monitoring the electromagnetic radiation comprises monitoring nodes, regional nodes and a control center. A monitored object is provided a plurality of monitoring nodes, the plurality of monitoring nodes are stereoscopically arranged surrounding the monitored object, one regional node is in wireless connection with the plurality of monitoring nodes, and the regional nodes are used for uploading multiple environmental index parameters collected by the monitoring nodes to the control center. A plurality of regional nodes are electrically connected with the control center. The invention further provides a method of monitoring the electromagnetic radiation. The method of monitoring the electromagnetic radiation comprises the following steps: correspondingly setting the plurality of vertically distributed monitoring nodes around the monitored object according to the radiation distribution feature of the electromagnetic radiation stereoscopic space range of the monitored object, collecting multiple environmental index parameters at least including electromagnetic radiation signals of the monitored object, and carrying out data analysis and processing to the collected multiple environmental index parameters. The system and the method of monitoring the electromagnetic radiation improve the accuracy and the automation degree of monitoring the electromagnetic radiation.

The invention discloses a comprehensive control method for rockburst in a multiple-coalbed mining mine. According to the method, rockburst is controlled by employing two-side blasting for pressure relief, pressure-relief chamber establishment and coalbed high-pressure water injection according to monitoring data. The source of the monitoring data comprises electromagnet radiation monitoring, drilling-cutting-method pulverized coal monitoring, mine pressure monitoring and micro-seismic monitoring system monitoring. Two-side blasting for pressure relief means that during tunneling of upper gangway and lower gangway of a working face, following closely the tunneled working face, deep-hole pressure-relief blasting is arranged to the lower side of the upper gangway and the upper side and the slower side of the lower gangway. Pressure-relief chamber establishment means that the pressure-relief chambers are disposed on the lower side of the upper gangway and the upper side and the lower side of the lower gangway every 40 meters during tunneling. The coalbed high-pressure water injection means that advance water injection accompanied by coalbed high-pressure water injection is carried out on the upper sides and the lower sides of the gangways and in the pressure-relief chambers for rockburst control. According to the method of the invention, multiple methods are used for comprehensive forecasting, so that the rockburst control level is improved, the loss caused by rockburst is effectively reduces, and thus the pertinence and the effectiveness of the rockburst control are substantially enhanced.

The present invention provides a series of methods, compositions, and articles for patterning a surface with multiple, aligned layers of molecules, by exposing the molecules to electromagnetic radiation. In certain embodiments, a single photomask acts as an area-selective filter for light at multiple wavelengths. A single set of exposures of multiple wavelengths through this photomask may make it possible to fabricate a pattern comprising discontinuous multiple regions, where the regions differ from each other in at least one chemical and/or physical property, without acts of alignment between the exposures. In certain embodiments, the surface includes molecules attached thereto that can be photocleaved upon exposure to a certain wavelength of radiation, thereby altering the chemical composition on at least a portion of the surface. In some embodiments, the molecules attached to the surface may include thiol moieties (e.g., as in alkanethiol), by which the molecule can become attached to the surface. In some embodiments, the molecules may be terminated at the unattached end with photocleavable groups. In other embodiments, a molecule that was photocleaved may be exposed to another molecule that binds to the photocleaved molecule. In certain cases, the molecules may be terminated at the unattached end with hydrophilic groups that may, for example, be resistant to the adsorption of proteins. In other cases, the molecules may be terminated at the unattached end with end groups that are not resistant to the adsorption of proteins. In certain embodiments, the techniques are used to pattern simultaneously two different regions that are resistant to the adsorption of proteins, and a third region that does not resist the adsorption of proteins.

The invention relates to a lens driving device and belongs to the technical field of micro-cameras. The lens driving device comprises a first magnetic yoke ring, an insulation sheet, a first spring piece, a gasket, a lens carrier, a coil, a group of magnets and a second spring piece, wherein the outer profile of the first magnetic yoke ring is rectangular or circular, the insulation sheet is matched with a magnetic yoke ring cavity, the first spring piece and the gasket are placed in the magnetic yoke ring cavity, the lens carrier is provided with a lens placing cavity, the lens carrier and the coil are placed in the magnetic yoke ring cavity, and the second spring piece is placed in magnetic yoke ring cavity and provided with a group of third spring wires. The lens driving device has the advantages that a good even distribution effect is showed by the magnetic lines of the magnetic field generated by the magnets, an electromagnetic induction force of the coil obtained in an effective length range is enabled to be enlarged significantly, so that good driving characteristics are reflected, power driving power consumption can be reduced, assembly efficiency can be improved, the phenomenon that foreign bodies in the cavity drop on a sensor surface of a camera from lens carrier mating holes is avoided, wherein the phenomenon is caused by impact and vibration, so that image quality is ensured, harsh requirements of a lens optical axis degree can be met, and electromagnetic radiation generated by the coil can be prevented from affecting surrounding components.

Apparatus for inspecting an article comprising: a controller configured to generate a drive signal having a periodic amplitude variation; a source, the source being operable by the controller to emit a source beam thereby to irradiate an article, the source beam comprising a beam of electromagnetic radiation having a periodic amplitude variation corresponding to that of the drive signal; and a detector, the detector being configured to detect a portion of the source beam that has been transmitted through at least a portion of the article, and to generate a detector signal having an amplitude variation corresponding to the amplitude variation of said portion of the source beam, the controller being further configured to generate a difference value corresponding to a difference between the amplitude of the detector signal and the amplitude of a reference signal.

An apparatus (1) for measuring the transmission or attenuation of electromagnetic radiation through an object (6), said apparatus including an electromagnetic radiation emitter (2) and detector (3), characterised in that to perform transmission/attenuation measurements, the apparatus in configurable such that said emitter (2) is positioned immediately adjacent the surface of said object (6) and said detector (3) is positioned on an opposing side of the object (6) such that the detector (3) solely, or at least substantially receives electromagnetic radiation transmitted through the object (6) from the emitter (2).

The invention provides an electromagnetic radiation monitor with a protection function. The monitor comprises a protection shell, an electromagnetic radiation monitor main body, a pedestal, a rotationshaft and a metal U-shaped handle. The electromagnetic radiation monitor main body is installed in the protection shell. The electromagnetic radiation monitor main body is welded in the pedestal andis extended out of the upper end of the pedestal. The protection shell is installed on the upper end of the pedestal and is extended into the pedestal. A rotating shaft is fixed in the pedestal. The rotating shaft is provided with the metal U-shaped handle. The metal U-shaped handle is installed in the pedestal. The rotating shaft and the metal U-shaped handle are installed on the lower side of the protection shell. The design realizes carrying and supporting functions. The operation is simple, the monitor is portable and a protection function is achieved.

The present disclosure provides a method for characterising a region of interest within or between biological tissue. The method comprises inserting at least a portion of a probe into the region of interest and directing electromagnetic radiation to the region of interest and receiving electromagnetic radiation from the region of interest using the probe in a direction that is transversal to a length of the probe. Further, the method comprises directing a fluid to the region of interest through a portion of the probe and analysing received electromagnetic radiation.

The invention discloses a printer shield. The printer shield comprises a front panel, a rear panel, a side panel, a top panel and a bottom rubber ring, wherein two square openings are formed in the center of the front panel and the center of the rear panel respectively and are sealed through glass blocks, an observation hole is formed in the middle of the top panel and is also sealed through a glass block, the front panel, the rear panel, the side panel and the top panel are mutually connected to form a square metal cover with an opening in the bottom, and the bottom rubber ring is located at the bottom edge of the square metal ring. Because the square metal cover is made of metal materials and wired glass, electromagnetic radiation can be shielded by the printer shield; ozone and carbon powder which are generated by a printer are sealed by the rubber ring at the bottom of the square metal cover to reduce damage to human bodies, and therefore the printer shield is suitable for all kinds of office printers or copying machines.

The embodiment of the invention discloses an antenna device. The antenna device comprises an antenna module which is disposed in a housing and is used for receiving and/or transmitting a radio frequency signal; a gap which is formed in the shell and at the periphery of the antenna module; a first detection module, which is arranged on the shell, wherein a preset distance is formed between the first detection module and the antenna module, and the antenna module and the first detection module are insulated, the first detection module being used for detecting the electromagnetic radiation quantity generated by the antenna module in a working state; a feed point which is arranged in the shell and is electrically connected with the antenna module; wherein the antenna module can couple the received and/or transmitted radio frequency signal to the first detection module. The embodiment of the invention further discloses electronic equipment.