12results about How to "Simplify the measurement steps" patented technology

The utility model discloses a fixing device for spectral measurement of a large-size optical filter. The fixing device comprises a light barrier, a center measurement mechanism and an edge measurement mechanism, a light through hole penetrates through the light barrier; a first movable backup plate in the center measuring mechanism is movably arranged on a first mounting bottom plate through a first guide limiting structure, so that the first movable backup plate is close to a first fixed side plate to form a first optical filter fixing cavity, and the first optical filter fixing cavity is arranged corresponding to the light through hole to realize the light splitting effect of detecting the center position of the optical filter to be detected; a second movable backup plate in the edge measuring mechanism is movably arranged on a second mounting bottom plate through a second guide limiting structure, so that the second movable backup plate is close to a second fixed side plate to form a second optical filter fixing cavity, the second optical filter fixing cavity is arranged corresponding to the light through hole, and the second mounting bottom plate is movably arranged on a limiting sliding seat; and the second optical filter fixing cavity is driven to transversely move relative to the light through hole, so that the light splitting effect of the to-be-detected optical filter at different edge positions at the same height is detected.

This application provides a portable aircraft ground power vehicle voltage rapid detection device, belonging to the field of voltage detection technology. The device includes: a DC voltmeter A, a DC voltmeter B, a first switch K1, a second switch K2, a first pin, a second pin, a third pin, a fourth pin, a fifth pin, and a sixth pin. The third and sixth pins are connected by a first wire, and the first switch K1 is connected in series with the first wire. The fourth and fifth pins are connected by a second wire, and the second switch K2 is connected in series with the second wire. The first terminal of DC voltmeter A is connected to the first pin, and the second terminal of DC voltmeter A is connected to the first switch K1 and the third pin. The first terminal of DC voltmeter B is connected to the first switch K1 and the third pin, and the second terminal of DC voltmeter B is connected to the second pin. Voltage values ​​can be quickly obtained from DC voltmeters A and B.

The present application relates to a kind of tool measuring method and system based on UG / NX software, based on UG / NX software, comprising: the tool model created after using reverse scanning device to scan cutting tool is obtained;Obtain the key features of the cutting tool set;Obtain the key parameters of the cutting tool set;Based on the tool model, key features and key parameters, using static installation size automatic measurement algorithm and / or static non-installation size automatic measurement algorithm, the automatic measurement calculation of static installation geometric dimension and / or static non-installation geometric dimension of cutting tool is carried out on the tool model;Output the measurement data calculated by static installation size automatic measurement algorithm and / or static non-installation size automatic measurement algorithm.The present application combines reverse scanning and UG / NX software, can greatly improve the measurement accuracy and measurement efficiency of tool, improve product quality, bring more economic benefits for enterprise.

The application discloses a device and a method for measuring the local density of states of a sound field, and the measuring device comprises a sound source, a square waveguide, a MEMS silicon microphone and an acoustic vector sensor; one end of the square waveguide is connected with the sound source, and the other end is embedded with the MEMS silicon microphone and the acoustic vector sensor which are attached to the inner wall of the square waveguide. By measuring the particle velocity of the end surface of the waveguide, the volume flow rate of the waveguide into the measured structure can be obtained, and the local density of states of the measured structure can be calculated by combining the sound pressure obtained by the MEMS silicon microphone. The application overcomes the difficulty that the volume flow rate of the sound source in a narrow area cannot be accurately measured by using the vector detection technology, realizes the experimental measurement of the local density of states of the sound field, can be applied to the characterization of acoustic structural materials, and provides guidance for the design of acoustic radiation structures.

The utility model provides a building structure contour line measuring device, which comprises a positioning main body, an axis positioning mechanism and a contour positioning mechanism, and is characterized in that the positioning main body is used for positioning the center of a building structure to be paid off; the axis positioning mechanism is arranged on the positioning body and used for determining the orientation of the positioning body through the first laser face. The contour positioning mechanism movably sleeves the positioning body and projects a second laser surface at a set included angle to form a contour line parallel to the side wall of the positioning body. According to the utility model, the contour line of the building structure can be measured easily, accurately and conveniently, the device is simple in structure, easy to manufacture, simple and convenient to operate and suitable for measuring contour lines of building structures with various section shapes and specifications, the measuring steps are simplified, the labor intensity of measuring personnel is reduced, and the measuring efficiency and the measuring precision are remarkably improved.

The application discloses a method for determining the content of aluminum in thionyl chloride solution of aluminum trichloride by complexometric titration, and relates to the field of complexometric titration in analytical chemistry. After a sample is hydrolyzed under a closed condition, aluminum ions are combined with an excessive amount of disodium ethylenediaminetetraacetate solution under the condition that the pH value is about 3.0. Then, the excessive amount of disodium ethylenediaminetetraacetate is titrated by using dimethylphenyl orange as an indicator and a zinc chloride standard titration solution under the condition that the pH value is about 6.0. The method has the advantages of convenient sampling safety, simple determination steps, easy mastering, short analysis time and accurate detection result.

A programmable RCM motion precision measurement method, the programmable RCM motion implementation device includes a surgical mechanical arm and an end effector mounted on the surgical mechanical arm; the end effector is used for carrying a surgical tool and providing operating power; a measuring device includes a binocular camera and a visual auxiliary marker point, and is used for collecting a homogeneous transformation matrix between the end effector and the binocular camera. The programmable RCM motion precision measurement method of the present application obtains the precision of the RCM point and the RCM constrained motion through optimal calculation by collecting the homogeneous transformation matrix of the marker coordinate system fixedly connected with the end effector relative to the camera coordinate system. The method of the present application provides an important evaluation basis for evaluating the programmable RCM motion algorithm.

The application discloses a method and device for measuring complex permittivity of wave-transparent material based on radiometer, and belongs to the field of passive microwave / millimeter wave remote sensing and detection technology. The method comprises the following steps: preparing N (N>=3) material samples with different thicknesses, and recording the thicknesses as d [d1, d2, d3…, d N ]; the thickness of each sample should be smaller than the skin depth of the material to ensure that electromagnetic waves can effectively penetrate the sample; measuring linear polarization transmittance of the material samples with all the thicknesses at an incident angle θ, and recording the transmittance as γ [γ1, γ2, γ3…, γ N ]; using a fitting algorithm to fit the output loss index factor Q (ε r , θ) and the Fresnel reflectivity T p (ε r , θ) according to the calculation formula of the transmittance of the wave-transparent material; and calculating the complex permittivity ε r using the Q (ε p , θ) and the T r (ε r ). The application can obtain a unique solution of the complex permittivity of the wave-transparent material, and realize accurate measurement of the complex permittivity of the wave-transparent material.

The utility model relates to a measuring tool for an arthroscope. The measuring tool comprises an outer cylinder and a measuring scale assembly arranged in the outer cylinder. A measuring head is arranged at one end of the outer cylinder, and an opening is formed in the measuring head; the measuring scale assembly comprises a scale flexible rule and an elastic piece, one end of the scale flexible rule is connected with the elastic piece, and the other end of the scale flexible rule penetrates through the opening to be connected with a pull ring. And the elastic piece is used for driving the scale flexible ruler to retract into the outer cylinder when the pull ring is released. The measuring tool has the advantages of being accurate in measurement, rapid in resetting, simple in operation step and capable of improving the measuring efficiency.

This utility model relates to a dental implant bone thickness measurement probe, comprising a rod and a metal sheet. One end of the rod is formed as a connecting end, and the metal sheet is connected to the connecting end. The rod is used to insert into a cavity in the alveolar bone, and the metal sheet is configured to be flexible to conform to at least one side of the alveolar bone surface where the cavity is located, in order to measure the distance between the cavity and the bone surface. This utility model has a simple structure, which simplifies the operation of measuring bone thickness, improves measurement efficiency, and enables repeatable and rapid measurements.

This invention discloses a haze testing method for anti-glare films, relating to the field of film testing technology, for detecting the internal and external haze of anti-glare films. The method uses a film layer testing structure comprising an anti-glare film layer and an auxiliary testing layer that can be directly adhered to the anti-glare film layer. The anti-glare film layer has an uneven anti-glare surface formed by anti-glare particles; the auxiliary testing layer has a flexible adhesive surface that can be directly adhered to the anti-glare surface, and is light-transmitting. The testing method provided by this invention simplifies the measurement steps and saves measurement time by selecting an auxiliary testing layer that can be directly adhered to the anti-glare film layer and whose refractive index matches it, thus forming a film layer testing structure for testing. Simultaneously, by controlling parameters such as the adhesion angle between the auxiliary testing layer and the anti-glare film layer, the adhesion quality can be effectively controlled, avoiding defects such as air bubbles on the adhesion surface.

The application discloses a kind of water quality comprehensive toxicity high flux determination method, the determination method includes using sewage sample to expose the test organism after being contaminated, obtains the phenotypic characteristic data of test organism;Toxicity matrix is constructed;Establish machine learning model, determine the water quality comprehensive toxicity of sewage sample in combination with toxicity matrix.The water quality comprehensive toxicity determination method provided by the application does not need sample concentration enrichment, guarantees the comprehensiveness and accuracy of detection result, and can be applied to the comprehensive toxicity high flux determination of sewage treatment plant whole-process sewage.