40 results about "Texture measurement" patented technology

A roundness measuring apparatus includes: a stylus having a contact part; a holding member that holds the stylus while allowing displacement of the contact part; an elastic member that presses the contact part against a measurement target object; a detector holder that supports the holding member rotatably; a motor; an elastic force adjustment member that is rotatable and concentric with the holding member; a joining section that joins the elastic force adjustment member with the holding member to maintain relative rotational positions; and a restricting section that restricts rotation of the elastic force adjustment member at a predetermined rotational position. The displacement direction of the contact part is adjusted in a first rotation range. The rotational position of the holding member relative to the rotational position of the elastic force adjustment member changes with the rotation of the elastic force adjustment member being restricted in a second rotation range.

A method of calibrating a surface texture measurement device includes obtaining Y-axis shape measurement data and a maximum diameter portion to obtain upper and lower maximum diameter portions of a reference sphere from Y-axis upper and lower shape data obtained by relatively moving in the Y-axis direction while a downward and an upward styluses are in contact with an upper and a lower surfaces, respectively, of the reference sphere; obtaining X-axis shape measurement data to obtain X-axis upper and lower shape data of the reference sphere by relatively moving in the X-axis direction while the downward stylus is in contact with the upper diameter portion and the upward stylus with the lower diameter portion of the reference sphere; and calculating offset amounts Δx and Δz of the upward and downward styluses from center coordinates O3 and O4 obtained from the shape data.

The disclosed invention is a method for detecting indications of the presence of Alzheimer's disease (AD) and related dementia-inducing, motor-control-related pathologies, and other diseases in the human brain using a magnetic-resonance based technique for measuring fine tissue and bone textures. Specifically, the invention focuses on refinements/adaptations to a prior art magnetic resonance fine texture measurement technique that facilitates/enables pushing the detection limits closer to the cellular level, so as to be able to measure the fine scale structures and tissue changes that are known to be characteristic of the neurodegenerative processes involved in the development of these diseases.

A texture automatic monitoring system for measuring surface texture of a road surface compacted by a road roller is measured by texture measurement equipment mounted on the road roller. The road surface texture measurement equipment comprises a height measurement instrument disposed on the compaction roller that measures height from the road surface, a moving distance detecting instrument that generates a signal corresponding to the moving distance of the road roller, a data processing unit that calculates the moving distance of the road roller based on the moving distance detecting signal, and calculates one or more road surface property values indicating the road surface texture by using the measured value of the height acquired from the height measurement instrument and the calculated moving distance, and a displaying unit which displays the calculated road surface property value.

A non-destructive measurement apparatus and method for quantitatively measuring texture of a food snack is disclosed. The apparatus includes a laser generating tool, an ultrasound excitation device, an acoustic capturing device, an ultrasound capturing device and a data processing unit. The laser generating tool and the ultrasound excitation tool direct energy towards a food snack placed on a surface and produce an acoustic signal and an ultrasound signal. The data processing unit further comprises a digital signal processing module that processes the received acoustic signal and ultrasound signal. A statistical processing module further filters the acoustic signal from the data processing unit and generates a quantitative acoustic model for texture attributes such as hardness and fracturability. The quantitative model is correlated with a qualitative texture measurement from a descriptive expert panel. Texture of food snacks are quantitatively measured with the quantitative acoustic model.

A measurement apparatus and method for in-situ quantitative texture measurement of a food snack. The apparatus includes an acoustic capturing device and a data processing unit. The physical interaction in the mouth with saliva, when a human being eats/drinks a food snack, sends pressure waves that propagate through the ear bone and produce an acoustic signal. The acoustic capturing device records and forwards the signal to a data processing unit. The data processing unit further comprises a digital signal processing module that smoothens, transforms and filters the received acoustic signal. A statistical processing module further filters the acoustic signal from the data processing unit and generates a quantitative acoustic model for texture attributes such as hardness and fracturability. The quantitative model is correlated with a qualitative texture measurement from a descriptive expert panel. Another method includes a food snack fingerprinting using an in-situ quantitative food property measurement.

The invention relates to a high-temperature heating device for measuring the orientation texture in a measurement technical field, comprising a heating furnace, a heating element, a sample stage, a sample rack, a thermocouple, a water cooling pipe, a step motor, wherein the exterior of the heating furnace is a ceramics socket sleeve and a spiral drum type heating element is embedded into the heating furnace and the heating furnace is set on the sample stage; and the sample rack is set in the step motor and separated from the heating furnace, capable of rotating along the self-axle in the heating furnace; a water cooling pipe is set at the lower part of the sample rack and coils in parallel with the sample undersurface to form a cooling plane; and the thermocouple is set in the heating furnace. During heating process, the sample can rotate and the uniform heating of sample can be ensured; at the same time the rotation is consistent with the Phi rotation in general texture measurement, thereby ensuring the texture measurement at high-temperature; in addition, the whole of the heating furnace is set on the texture measurement stage, thus Psi rotation of stress rolling method, therefore the high-temperature stress measurement can be performed.

The invention discloses an electrolytic corrosion method of high strength and high toughness Fe-Mn-C series twinning induced plasticity (TWIP) steel. The steel is the second generation of the TWIP steel and is suitably used in the car impact resistant structural component and in other fields. The steel contains the following chemical components by weight percent: 0.2-0.7% of C, 17-24% of Mn and the balance Fe and inevitable impurities generated by the smelting process. The electrolytic corrosion method is characterized in that the electrolytic corrosion liquid is the mixed solution of 10% of perchloric acid, 80%-90% of glacial acetic acid and 0-10% of glycerol by volume, the working voltage is 30-45V; the current density is 0.5-1.5A/cm<2>, the corrosion time is 30-120s, the temperature of the corrosion liquid is 10-50 DEG C and the distance between the cathode and the anode is 1-5cm. The method of the invention is simple and practical and has good repeatability; the surface of the prepared TWIP steel does not have scratches and the surface deformations caused by polishing deformation such as the disturbing layer and the deformation twin, and the TWIP steel of the invention can satisfy the experimental requirements of the metallurgical phase, the type analysis of grain boundary, the strain test and the texture measurement on different sizes of Fe-Mn-C series TWIP steel samples.

The invention belongs to the field of pharmaceutical preparations, in particular to a lyotropic liquid crystal drug carrier and a preparation method and application thereof. Twain-80, soybean lecithin, ethyl oleate and water in a certain proportion can obtain lyotropic liquid crystal phase, further adjusting that proportion of reagent, and confirm that hexagonal phase lyotropic liquid crystal andlamellar phase lyotropic liquid crystal are also prepared by polarizing texture measurement. It is found that the hexagonal and layered phases have good shear viscosity, which means that the crystalline phase has good stability and can be used as drug carrier. Curcumin is encapsulated in hexagonal phase and drug release is investigated. The results showed that hexagonal phase had good sustained-release effect and the release curve of layered phase fitted the first-order kinetic equation well. The suitable release dosage form could be selected according to the clinical application.

A part program generating device includes a CAD data memory storing CAD data of a work piece, a measurement condition definer receiving an input operation performed by a user and defining a measurement procedure, and a part program generator converting the measurement procedure defined by the measurement condition definer into a part program language. The measurement condition definer provides the user with, as a graphical user interface, an editing window capable of editing the measurement procedure in an editing language and a command icon providing a command to be used for defining the measurement procedure as an icon. The command icon includes a circumvention move command icon instructing to overcome a barrier when displacing a sensor from a start point to a target point.

The invention discloses a cold-roll steel sheet texture measurement method which comprises the following steps: S1, treating the surface of a cold-roll steel sheet so as to obtain a test sample 1; S2,measuring the <111>//ND texture ratio within the maximum orientation deviation of 20 degrees so as to obtain a result A; S3, performing argon ion etching on a test sample 1 to be tested so as to obtain a test sample 2 to be tested; S4, detecting a surface argon ion etching depth T of the test sample 2 to be tested; and S5, measuring a <111>//ND texture ratio within the maximum orientation deviation of 20 degrees so as to obtain a result B, and repeating steps S3 to S5 till the quotient of the absolute value of BN-AN divided by AN is greater than or equal to 50%, thereby obtaining a final argon ion etching depth TN, that is, the depth of a cold-roll steel sheet surface texture. By adopting the method disclosed by the invention, the depth of a micro-grade characteristic texture of the surface layer of a cold-roll sheet that the crystal orientation has differences from that of the central part of the cold-roll sheet can be accurately measured.

The invention belongs to the technical field of crystal texture measurement, and particularly relates to a method for measuring orientation deviation angle of oriented silicon steel through X-ray diffraction, including the steps of firstly, fixing a light pipe to the negative divergence of a theoretical diffraction angle, and utilizing a probe to scan to explore with large step to acquire probablediffraction angle by the standard of generating the diffraction peak; further, reducing the scanning range, gradually reducing scanning step, and finally determining the diffraction angle and deviation angle by the standard of the maximum diffraction peak intensity. By the method, accurate diffraction angle and orientation deviation angle of oversized-grain oriented silicon steel can be obtainedsimultaneously. Besides, the method has the advantages of simple sampling, low requirements on equipment, convenience in use and accuracy reaching 0.01 degrees.

The invention discloses a precision self-checking pavement three-dimensional texture measurement method and system, and a storage medium. The precision self-checking pavement three-dimensional texture measurement method comprises the following steps: obtaining a three-dimensional reconstruction result of a pavement to be measured based on a binocular reconstruction device; acquiring a plurality of marking points of the to-be-measured pavement; acquiring position information of a plurality of mark points based on a binocular reconstruction device; calculating a theoretical parallax and a theoretical elevation of each marking point according to the position information; according to the position information and the three-dimensional reconstruction result, obtaining the actual parallax and the actual elevation of each marking point position; and calculating a deviation value of the three-dimensional reconstruction result according to the theoretical parallax, the theoretical elevation, the actual parallax and the actual elevation. According to the invention, precision self-inspection can be carried out on the three-dimensional reconstruction result of the to-be-detected pavement, the structure is simple, the operation is convenient, the reconstruction technology of the three-dimensional texture of the to-be-detected pavement can be perfected according to the precision self-inspection result, and the accuracy of the detection result is improved.