34results about How to "Avoid Radiation Effects" patented technology

For providing a photoelectric conversion device that can prevent radiation noise by a low-cost and simple mounting method, the photoelectric conversion device having a photoelectric conversion element is provided in which a conductive member such as a thin metal sheet is stuck on the photoelectric conversion element.

The invention discloses a terahertz waveband silicon-chip-loaded end-on-fire antenna apparatus. The apparatus comprises a substrate, the upper end surface of the substrate is provided with a SiO2 layer, a first metal layer, a metal block, and a second metal layer are arranged in the SiO2 layer, the first metal layer is arranged on the inner bottom surface of the SiO2 layer, the first metal layer is provided with the metal block, the upper end surface of the metal block is provided with a second metal layer, the first metal layer is parallel to the second metal layer, the upper end surface of the metal block is provided with a feeding terminal, the feeding terminal is connected with a balun, the second metal layer is connected with a dipole, the balun and the dipole are parallel to the substrate, the balun and the dipole are arranged at the same side of the feeding terminal, and the feeding terminal, the balun, and the dipole are all arranged in the SiO2 layer. According to the apparatus, the absorption of radiation energy of an antenna by the substrate is reduced, the apparatus is fully compatible with the mainstream CMOS technology and applicable to silicon chips with various resistivities, extra impedance match parts are not needed, and the apparatus is advantaged by simple structure, small dimension, high efficiency, and high gain.

The invention discloses a flame temperature three-dimensional-reconstruction method and experiment device of single-droplet combustion. A new three-dimensional-tomography-reconstruction method and anexperiment device of inducing single-droplet combustion by forced ignition of a spark plug are included. The three-dimensional-reconstruction method includes the following steps: step 1, dividing flame of single-droplet combustion into a series of horizontal slices; step 2, carrying out flame temperature reconstruction for each layer of the horizontal slices; and step 3, superimposing all the horizontal slices to obtain a three-dimensional flame temperature field. The experiment device includes a droplet making system and a spark plug forced-ignition system. The forced-ignition system uses electrical sparks, which are generated between tips of two copper needles, to ignite a single droplet on a tip of a quartz wire. The method and the device realize three-dimensional reconstruction of non-axisymmetric flame temperature in a single-droplet combustion process, can accurately measure the flame temperature of single-droplet combustion, and facilitate study of combustion characteristics ofinternal combustion engines.

The invention provides a weight packing and conveying device, which relates to a device for packing and conveying weights, in particular to a device for packing and conveying high-accuracy weights of which the accuracy is higher than grade E1, namely a device for packing and bearing weights when the weights are conveyed for checking. The device (200) comprises a weight (207) to be conveyed, a bottom bracket (201) for bearing a weight conveying device and a weight top cap (208) and is characterized by comprising a pushing mechanism for pushing weights. In the invention, because the bottom bracket, the top cap, the pushing mechanism, the fixed weight, a mechanism for supporting the top cap, an outer cover and a compression ring are adopted and matched mutually, the weight is firmly fixed onthe bottom bracket, can not be scratched because of transporting and vibrating and definitely can not be moved and crashed, thereby performing good protective effect.

The invention relates to a startup burner igniter nitrogen protecting device which is provided with a sleeve and an ignition rod. The sleeve is arranged on the back portion of a startup burner center channel in a sleeved mode. The ignition rod is inserted into the startup burner center channel from the back end of the sleeve. A nitrogen inlet which is communicated with the startup burner center channel is formed in the side wall of the sleeve. A nitrogen entering opening is formed in the rod wall on the back portion of the ignition rod. In practical working, before startup burner operation, protecting nitrogen enters the ignition rod through the sleeve nitrogen inlet, and the protecting nitrogen is sprayed out through the head of the ignition rod in two ways. During startup burner operation, the head of the ignition rod is completely surrounded by nitrogen so that the head of the ignition rod can be effectively protected, and the influence from high-temperature airflow radiation is avoided. At a flameout stage, nitrogen pressure in the ignition rod is higher than external environment pressure, tempering of the head of the ignition rod can be effectively avoided, and safe operation of the ignition rod can be guaranteed. The startup burner igniter nitrogen protecting device has the advantages of being reasonable in structure and convenient to operate, and the service life of the ignition rod can be effectively prolonged.

The embodiment of the present disclosure discloses a smart pillow, a control method and device thereof, a control device and a storage medium. A specific embodiment of the smart pillow includes: a control system and a pillow body, the pillow body includes a first air bag, a second air bag and a pressure sensor unit, the first air bag and the second air bag are arranged at intervals along the height direction of the pillow body, the first air bag The length is less than the preset shortest shoulder width of the human body, the pressure sensor unit includes at least two pressure sensors arranged at intervals along the length direction of the first air bag on the upper surface or the lower surface of the first air bag, and the control system includes a control device, a power supply module, and an air pressure sensor and the air pump, the air outlet of the second air bag is connected to the air pressure sensor, the second air bag communicates with the air pump through the air pipe, and the control device is electrically connected with the pressure sensor, the air pressure sensor and the air pump respectively. This embodiment realizes the automatic adjustment of the height of the pillow according to the sleeping position of the human body, thereby improving the sleep quality of the human body.

The invention discloses a gas turbine box-mounted environment control system and a control method thereof. A heat shield is provided on the inner surface of the chest drum-shaped middle box section, and the left and right ends of the heat shield are connected with the inner surface of the chest drum-shaped middle box section. The two ends are closed and connected to form an airflow chamber, and several air film holes are arranged on the inner wall of the heat shield, and the upper and lower surfaces of the right side of the chest drum-shaped middle box section are symmetrically provided with holes communicating with the airflow chamber. The third and fourth air intake pipelines are provided with valves and fans sequentially from outside to inside on the third and fourth air intake pipelines; the second air intake pipeline is connected through the side of the first air intake pipeline, and A valve, a blower fan and a heater are sequentially arranged on the air pipeline from the outside to the inside. The control system can adjust the use mode according to different working conditions, so that the internal temperature of the box body and the surface temperature of the gas turbine can quickly return to the optimal data environment state; the design of the air film hole can also suppress the backflow of the ejector outlet and the Airflow self-locking inside the body.

The invention discloses a small weighing type continuous pulp flow weight concentration measurement device. The device includes a vertically arranged forked pipe within a wear resistant inner surface. One branch top of the forked pipe is communicated with a siphon that can suck pulp from an overflow pulp tank and can flush water into the forked pipe when the measurement device stops measuring. A pulp discharge valve is installed at the bottom end of the forked pipe. The non-forked end of the forked pipe passes through a weighing system, which can weigh the total weight G of the forked pipe and the pulp fluid therein. The measurement device provided by the invention basically avoids pulp blockage, the valve can be used for a long term and is difficult to wear and damage, and stable measurement can be realized. Because of no use of radioisotope, full pipe and bubble problems at instrument installation positions in a dressing plant are unnecessary to consider, bubbles can also escape from the liquid level of a first tubular container involved in the invention, staff of different types of work can perform repairing and maintenance at ease, and have no need to consider whether radioactivity exists nearby.

The invention discloses an on-line test device for outgassing caused by radiation of materials. The device comprises a vacuum chamber system, a radiation chamber system, an air extraction system, an air supply system, a detection component and a numerical control acquisition unit. The present invention also proposes two methods for testing the amount of radiation-induced outgassing of materials: a dynamic method and a mass spectrometry method, both of which can be tested in real time on-line. The outgassing component of each component of radiation-induced outgassing can be accurately measured. The device has simple structure and convenient operation, and can calibrate the mass spectrometer and effective pumping speed, so that the test results are more real and accurate.

The invention relates to a photo-catalytic shielding heat dissipating device, comprising a light shielding box body which can contain a photo-catalytic system and is provided with a heat dissipating system. As an important composition part of the photo catalysis, the photo-catalytic shielding heat dissipating device avoids the radiological impact to operators caused by the light of photo-catalytic reaction, the influence on catalytic reaction in the system caused by light outside the system and prevents the overheating of the system and the light source. The device which is simple in structure is suitable for the fields of scientific research and production and teaching such as photo-catalytic synthesis, degradation, transformation and reduction. By selecting special materials, the shielding heat dissipating device has the effect of preventing ultraviolet radiation, avoiding the influence of light sources and temperature differences of external environments.

The invention provides a modified light conversion material, a preparation method and an application thereof. The modified light conversion material includes a light stabilizer and a light conversion agent coated with a barrier material. The light-converting material is coated and modified by micelles containing both barrier materials and light stabilizers. While the light stabilizer absorbs ultraviolet radiation and prolongs the life of the light-converting material, the barrier material is used to reabsorb the remaining ultraviolet rays and prevent water vapor. The contact with oxygen further improves the stability of the light conversion material.

The invention discloses a visual support releaser, and belongs to the technical field of medical equipment. The visual support releaser comprises a guiding tube, a guiding head and an operation head, wherein an installing hole is formed inside the guiding head, a photographic device is installed inside the installing hole, a lighting source is installed at the front end of the photographic device, a groove for accommodating a support is formed in the outer side wall of the guiding tube, and the visual support releaser further comprises a washing tube for washing the photographic device. The visual support releaser is simple in structure and convenient to operate. A doctor can directly observe a focus with the help of the photographic device, a visual treatment system is achieved, treatment accuracy can be improved, and surgical time is shortened. In addition, a radial device does not need to be used in the process of surgery, and the occurrence that the doctor is radiated by the radial device for a long time can be avoided.