49results about How to "Observation does not affect" patented technology

The invention relates to the technical field of metallographic phase preparation, and in particular relates to a method for displaying and treating Cr12 type martensitic heat-resistant steel primary austenite grain boundary by high-temperature oxidation and room temperature erosion. The method comprises four steps of preparing a polished sample, carrying out heat treatment, finely grinding and polishing, and etching. The method concretely comprises the steps of: firstly, preparing the sample, and grinding one of the planes of the sample to be smooth; then, putting the sample into a heating furnace, carrying out heat preservation under the condition of the temperature and time parameters to be researched, and quenching after heat preservation; carrying out water milling on the sample, keeping a certain angle between the polished surface and abrasive paper during water milling, guaranteeing that the surface of the sample is provided with a matrix-oxidation zone transition area, polishing, etching by an erosion reagent, cleaning by alcohol and then blowing the product to be dry; and observing the clear primary austenite grain boundary under a microscope. According to the technical scheme of the method, the implementation is simple and convenient; and after the technical scheme is implemented, the material primary austenite grain boundary is not influenced by a matrix metallographic structure simultaneously when being clearly and integrally displayed.

The invention discloses an anoscope, and belongs to the technical field of medical instruments. The anoscope comprises an anoscope tube, a conical anoscope core which can be arranged in the anoscope tube in a sleeved mode, an observation tube which can be arranged in the anoscope tube in a sleeved mode and rotate in the anoscope tube and a light source; the anoscope tube comprises a first segment shaped like a trumpet opening and a second cylindrical segment which is connected to the rear end of the first segment, and the first segment of the anoscope tube is provided with a handle; the observation tube is of a conical tube structure of which the side wall is provided with a longitudinal strip-shaped opening, the cross section of the observation tube is in a C shape, a conical tip structure is arranged at the rear end of the observation tube, at least one optical fiber is embedded into the inner wall of the observation tube, and the tail ends of the optical fibers are connected with the light source arranged outside the anoscope. According to the anoscope, the structure is simple, use is convenient, and by using the observation tube matched with the anoscope tube and embedding the illumination optical fibers into the inner wall of the observation tube, enough illumination can be conveniently provided for a doctor when the doctor observes a patient.

The invention discloses a fungal detection kit comprising a fluorescent brightener, a living cell stain, a fixative, glycerin and NaCl. The fungal detection kit is used for detecting fungi in body fluids; for detecting candida and filamentous bacteria; for detecting leucorrhea and for assisting detection of infectious diseases in the lungs, urinary system and chest and abdomen. The fluorescent brightener dye is used to specifically stain chitin and cellulose of a cell wall of leucorrhea, and the morphology of mold spores and hyphae can be clearly observed under a fluorescence microscope, whileepithelial cells or blood cells from a patient are not pigmented; on the other hand, nucleus staining is performed by the living cell stain, and it is confirmed that the morphology is a cell morphology, thereby rapidly achieving efficient identification of the mold.

The invention provides a building model display tool. The building model display tool comprises a base plate; a shell structure which comprises a first motor cover, a turntable, a second motor cover,a cylinder cover, a first motor, a second motor and a screw rod; a sliding structure which comprises a sliding groove, an inner sliding groove and a deceleration strip; a display structure which comprises a gear, a large arm, a middle arm, a small arm, a guide rail, a display plate, a support column and a roller; a lifting structure which comprises a lifting ring and a sliding block; and a transmission structure which comprises a transmission rod, a first helical gear and a second helical gear. The building model display tool provided by the invention has the advantages of saving space and being convenient for customers to watch.

The invention discloses an observation device used on a fire observation opening of a furnace hearth. The observation device comprises an observation sleeve which can be fixedly connected with the fire observation opening of the furnace hearth; an observation plate which is made of a transparent material is mounted at the outer end of the observation sleeve in a sealing manner; the combustion situations in the furnace hearth can be observed from the fire observation opening through the observation plate; the observation sleeve is connected with a cooling pipeline; the cooling pipeline is communicated with a cooling gas source. The observation device used on the fire observation opening of the furnace hearth has the advantages that the cooling gas in the observation sleeve forms a transparent heat insulation section, so that the temperature of the observation plate is reduced, and the observation of the combustion situations in the furnace hearth by working personnel cannot be influenced; therefore, the working personnel can observe for a longer time, and the safety is greatly improved.

The invention relates to the technical field of material corrosion and protection, in particular to a test device for simulating a spray splash area. It includes a box body equipped with a solution circulation system, a spray generating device covered with a water-absorbing material coating layer is set in the middle of the box body, and a corrosion sample stand, a ventilation device, and a temperature detection and control element are set around the spray generating device. The spray generating device is respectively connected with the solution circulation system and the power device, and the power device is connected with the control system including program control. The invention can generate splash solution particles, simulate the spray splash environment, realize precise control of spray splash efficiency, spray splash rate, spray shape, etc., and make the simulated corrosion test results have good correspondence with the on-site corrosion results in the spray splash area. Therefore, the experimental efficiency is improved, manpower and material resources are saved, and the cost of the experiment is reduced; at the same time, the experimental data collection is convenient, which ensures the integrity of the experimental data and the reliability of the experimental results.

The invention discloses a visual grouting test system with controllable viscosity and solidification characteristics. The test system comprises a grouting test system, a visual observation system, a temperature control pressurization system, a heat insulation system and a collection system. The test system can control the solidification state of the grouting slurry by adjusting the slurry temperature through the temperature control pressurization system according to the actual situation, and meanwhile, the visual model of the grouting system is used for monitoring the specific solidification condition of the slurry along with the temperature change after the slurry is injected into the rock fracture. The solidification process of the slurry injected into the simulated rock fracture along with the change of the temperature can be directly observed through the test in combination with a visualization technology. The test system is simple in structure, convenient to operate and easy to observe and control, and has important practical significance for improving the impermeability of rock fracture grouting in engineering practice, improving the integrity of rock soil and the integrity of a structure and improving the bearing capacity and the sealing performance of a rock mass.

The invention discloses a device and a method for preventing glare during vehicle crossing. The device comprises a glareshield mounted before the eyes of a driver, wherein the glareshield is an electronic screen with more than 80 percent transparency; a shadowing area with indicated coordinates is arranged in the glareshield; the glareshield is connected with a processor unit; and the processor unit is connected with a plurality of detectors arranged on a vehicle. The invention further discloses the method preventing glare during vehicle crossing. According to the method, the detectors capable of detecting the orientation and the luminous intensity of high beams of far away vehicles are mounted on the vehicle, the glareshield is arranged before the eyes of the driver, and the glareshield is adjusted automatically to shadow in a corresponding area according to the lamplight strength of approaching vehicles but not completely shield, wherein the permeated light is suitable for the driver to observe with eyes. The invention has he advantages that regional dynamic shadowing can be realized; impact of glare on the eyes of the driver can be avoided conveniently and effectively; and the driver can clearly observe conditions before the vehicle.

The present invention relates to a visual optical imaging device and an ultrathin optics transmission-type near-eye display by using the same. The near-eye display is formed by bilaterally symmetrically arranging two same visual optical imaging devices, each visual optical imaging device including one free-form surface waveguide component and one projection optics assembly; and the projection optics assemblies are used for projecting image signals emitted by an image source component to the light incident plane of the free-form surface waveguide component, the light ray is propagated in the free-form surface waveguide component to an exit pupil direction by means of a total reflection condition and enters users' glasses after being emitted from the exit surface when the total internal reflection condition is satisfied, and the light rat in the transmission direction is able to normally transmit to enter users' eyes, so that the ultrathin near-eye display is realized.

The invention relates to a liquid storage tank material level indicating device with signal long-distance transmission as well as a design method and material level calculating method of the indicating device, and belongs to the field of liquid material level detection. The indicating device lies in that a soft rope A is connected with a floater and a driving pulley of a double-wheel pulley; a soft rope B is connected with a driven pulley of the double-wheel pulley and a counterbalance weight body, and the middle of the soft rope B is connected onto a fixed pulley in a bridging manner; the driving pulley and the driven pulley of the double-wheel pulley are all fixed on the same pulley spindle; the pulley spindle is mounted on two bearings; one end of the pulley spindle is connected with a potentiometer shaft sleeve through a shaft coupling tube; the potentiometer shaft sleeve is connected with a potentiometer; the shaft coupling tube is in movable connection with the potentiometer shaft sleeve; the middle of a soft rope C is hung on a reversing fixed pulley, and the two ends of the soft rope C are respectively connected with the counterbalance weight body and an indicating light bar; the indicating light bar can move up and down along a scaleplate; the power source of the indicating light bar is controlled by an optoelectronic switch and the indicating light bar is supplied with power through a flexible circuit conductor. According to the liquid storage tank material level indicating device with signal long-distance transmission as well as the design method and material level calculating method of the indicating device, provided by the invention, liquid level of liquid in a liquid storage tank can be observed directly without needing labors to climb up the liquid storage tank, liquid level observation is not influenced by power failure, and a resistive signal which has a linear relationship with the liquid level is provided.

The invention discloses a hurdle device for track and field hurdle training and its use method, which belongs to the field of track and field equipment. The bag can cushion the contact impact of the trainer during training, and at the same time use the impact force to trigger the expansion of the stacked magnetic plate on the other side of the trigger air bag, so that the sinking top ball can be forced to sink to the corresponding height by using the magnetic attraction effect , the sinking top ball drives the self-avoidance to let the hurdle bar deform and compress when it sinks, so as to effectively avoid the trainer and avoid the trainer from being tripped and injured during the hurdle process. At the same time, the trigger ball will spray a small amount of display The powder is used to remind the trainer of the contact parts during training just now, so that the trainer can make targeted adjustments in posture or height, thereby assisting in improving the effect of hurdle training, and can effectively protect the trainer and improve the training process of hurdle training. security.

The invention relates to the technical field of agricultural spraying equipment, in particular to a fruit tree spraying device. This kind of fruit tree spraying device includes a car body, a turntable arranged on the top of the car body, two support blocks symmetrically fixed on the upper surface of the turntable, two telescopic devices respectively arranged on the top of the two support blocks, fixed on two The angle-adjustable spraying mechanism on the top of the telescopic device and the safety isolation mechanism arranged between the angle-adjustable spraying mechanism and the turntable. The spraying device for fruit trees of the present invention adopts the design of the angle-adjustable spraying mechanism, and the spraying nozzle can spray in three directions, the upper, middle, and lower directions, and the nozzles on the upper and lower drug delivery pipes can flexibly adjust the angle ; Adjust the final height of the angle-adjustable spraying mechanism through the telescopic device, so that the spraying device can flexibly adjust the spraying height according to the height of the fruit trees, and the operator can flexibly rotate the angle-adjustable spraying mechanism to any angle.

The invention discloses an anoscope, and belongs to the technical field of medical instruments. The anoscope comprises an anoscope tube, a conical anoscope core which can be arranged in the anoscope tube in a sleeved mode, an observation tube which can be arranged in the anoscope tube in a sleeved mode and rotate in the anoscope tube and a light source; the anoscope tube comprises a first segment shaped like a trumpet opening and a second cylindrical segment which is connected to the rear end of the first segment, and the first segment of the anoscope tube is provided with a handle; the observation tube is of a conical tube structure of which the side wall is provided with a longitudinal strip-shaped opening, the cross section of the observation tube is in a C shape, a conical tip structure is arranged at the rear end of the observation tube, at least one optical fiber is embedded into the inner wall of the observation tube, and the tail ends of the optical fibers are connected with the light source arranged outside the anoscope. According to the anoscope, the structure is simple, use is convenient, and by using the observation tube matched with the anoscope tube and embedding the illumination optical fibers into the inner wall of the observation tube, enough illumination can be conveniently provided for a doctor when the doctor observes a patient.

The invention discloses a successively-falling two ball motion analysis and demonstration experiment device, which at least comprises a base board (1), hooks (2), a vertical bar A (3), a vertical bar B (4), a power supply A(5), a power supply B(6), a switch A (7), a switch B (8), an electromagnet A(9), an electromagnet B (10), a V-shaped metal contact (11), a metal circular ring (12), a light metal rod (13), a ball A (14) and a ball B (15). By closing the switch A and the switch B, the ball A and the ball B are absorbed to the electromagnet A and the electromagnet B respectively; by disconnecting the switch B, the ball B and the ball A fall successively; and in the falling process, students can well observe that the distance between the two balls increases gradually.

The invention discloses a car auxiliary reflective mirror capable of seeing a front wheel and a rear wheel simultaneously. The car auxiliary reflective mirror is used for providing assistance when side parking is conducted on a car so that the car can be avoided to run into a kerb. The car auxiliary reflective mirror comprises a base, a front mirror body and a rear mirror body. The top of the baseis provided with a fixing part which is connected with the lower edge of an outer frame of a rearview mirror of the car, and the fixing part comprises a plane or a camber surface at the top of the base, a screw matching part, a thread matching part, a plug pin matching part and a buckle matching part. The front mirror body and the rear mirror body are mounted on the base, and located at the samehorizontal plane, the front mirror body is located on one side close to a driving cab, and the rear mirror body is located on one side away from the driving cab. The base is provided with an adjustingdevice for finely adjusting the angles of the front mirror body and the rear mirror body, wherein the adjusting device can serve as the basis for researching and developing an electric controlled adjusting device. The car auxiliary reflective mirror has the advantages that the reflective mirror is mounted at the lower edge of the outer frame of the rearview mirror, so that the valuable reflectionarea of the rearview mirror is not occupied. The ground partial areas near the front wheel and the rear wheel can be observed through the front mirror body and the rear mirror body simultaneously, and observing of the rearview mirror by a driver cannot be influenced.