6 results about "Test material" patented technology

The invention relates to a dynamic effect device for gas-gun testing materials and a testing method. The dynamic effect device is characterized by comprising a cylindrical gun barrel and a cylindrical shell in a gun barrel body, wherein a high-pressure gas inlet is formed in one end of the gun barrel, and the opening of the other end of the gun barrel is provided with a material block to be tested; a sensor is arranged on the material block to be tested, and a rubber ring is arranged on the outer periphery of the cylindrical shell to seal the gun barrel. The dynamic effect device has the advantages of simple structure and reasonable design and can be used for easily testing the friction force effect and the inertia force effect of materials to be tested.

The invention belongs to the biotechnical field and provides a floral character QTL (quantitative trait locus) molecular marker screening method of amenone form chrysanthemum. The method can be used for positioning and cloning excellent genes of floral characters of amenone form chrysanthemum and cultivating novel varieties of amenone form chrysanthemum. The method comprises the following steps: I, obtaining a test material and phenome data; II, constructing a linkage map of chrysanthemum; III, combining phenome data with a molecular genetic map for QTL analysis of floral characters of amenone form chrysanthemum; and IV, determining the floral character associated molecular marker of the amenone form chrysanthemum. By using 160 F1 segregation population which is obtained by taking an amenone form chrysanthemum variety QX-053 as a female parent and a non-menone form chrysanthemum variety Nannongjingyan as a male parent, a plurality of molecular markers which are remarkably associated with floral characters of amenone form chrysanthemum. The molecular markers which are associated with floral characters of amenone form chrysanthemum are obtained for fine-mapping and cloning excellent genes of floral characters of amenone form chrysanthemum so as to greatly improve the selection efficiency, so that the amenone form chrysanthemum cultivating process is accelerated.

The invention discloses a non-contact detection method for detecting the elastic parameter uniformity of a material on line. A non-contact real-time characterization method is used for the elastic parameters of a solid material, and comprises the steps of: (1) radiating pulse laser to a spatial modulator, generating two beams of coherent light after the pulse laser passes through the spatial modulator; wherein the laser source is a nanosecond or a picosecond pulse light source, the pulse light is split through the spatial modulator consisting of gratings, and the +/- level serves as a coherent light source; (2) radiating the two beams of coherent light to the surface of the tested material and generating spatial coherent interference field by utilizing an optical component lens group, forming alternately dark and bright interference fringes on the surface of the tested material, wherein the distance between the alternately dark and bright interference fringes is acquired by adjusting the lens group or the gratings; and (3) generating sound waves of which the wavelength corresponds to the distance between the interference fringes in a thin-film material after the interference fringes formed by the pulse light source are absorbed by the thin-film material, and performing non-contact detection for characterizing and analyzing the elastic parameters of the solid sample.

A method for detecting the penetration type water vapor diffusion coefficient of a large-thickness low-porosity asphalt mixture is disclosed. The method includes molding a large-thickness close-gradedcylinder asphalt mixture test piece to be detected; adding a proper amount of distilled water controlling 100% relative humidity in an opened glass container into the container to prepare a water vapor diffusion device; putting the device into a vacuum drying oven capable of controlling a constant temperature, with P2O5 being disposed in the oven to provide stable humidity in the oven; vacuumizing the vacuum drying oven according to a set negative pressure by utilizing a vacuum pump; weighing everyday and recording the reduced mass of the device, namely the mass of water vapor penetrating theasphalt mixture; and calculating the vapor diffusion coefficient at the specific temperature and in the relative humidity gradient according to an equation. The method can achieve testing of the penetration type water vapor diffusion coefficient of the asphalt mixture at specific temperature in relative humidity gradient and under different negative pressures, significantly shortens testing time,and increases the efficiency. A test material is simple to prepare, the test method is simple and convenient to operate and testing precision is high.

The invention relates to a high-strain-rate nanoindentation testing device and method.The high-strain-rate nanoindentation testing device comprises a laser focalizer facing an indentation mechanism and used for emitting short-pulse laser beams to the top end of the indentation mechanism and initiating explosion plasma; the indentation mechanism comprises a guide rod which is located in the shell and moves along the vertical axis, the head end of the guide rod is connected with a pressing head, the tail end of the guide rod faces the laser focalizer, generated explosion plasma pushes the guide rod and the pressing head, and the pressing head presses the to-be-tested material borne on the objective table; the objective table is located in the space below the pressure head and used for bearing a to-be-tested material, and the to-be-tested material receives the pressure of the pressure head to generate indentations. The dynamic response process of the material under the influence of high-speed loading such as explosion, high-speed collision and dynamic fracture can be simulated in the process that the explosion plasma pushes the guide rod and the pressure head to press the to-be-tested material, so that the high-speed loading of the material is realized, namely, the dynamic performance test under the high strain rate is realized.

The invention relates to a device for testing the anti-condensation capability of a material and an application method. The testing device comprises a fixing frame, a condensation collecting module and a condensation generating module, the condensation generating module is installed in the fixing frame and comprises a first sealing connector, a condensation generating pipe, a second sealing connector, a water inlet pipeline and a water outlet pipeline, one end of the water inlet pipeline is connected with an external cooling-water machine, the other end of the water inlet pipeline is connected with one end of the condensation generating pipe through a first sealing joint, and the water outlet pipeline is connected with the other end of the condensation generating pipe through a second sealing joint; a condensation collecting unit comprises a container bottle with an opening in the top end, and the container bottle is arranged under the condensation generating pipe. Compared with the prior art, the device has the advantages that the anti-condensation effect of the material can be intuitively and accurately tested, and a test result is easy to display.