30results about How to "Intuitive and accurate measurement" patented technology

The invention relates to a salt spoon capable of accurately regulating dosage. The salt spoon comprises a container cavity and a piston, wherein the container cavity is used for containing salt; the piston can be connected with the container cavity through interference fit and can move up and down along the inner wall of the container cavity to change the internal capacity of the container cavity. The salt spoon capable of accurately regulating dosage has the beneficial effects that by arranging the piston capable of moving up and down inside the container cavity and rotating the piston to move up and down along the container cavity to reduce or enlarge the capacity of the cavity, users can conveniently, intuitively and accurately measure the salt in required mass, thus the defect that existing spoons can not regulate the capacity is effectively overcome; the technical effect of being removable can be achieved between the container cavity and the piston, so the aim of facilitating washing can be achieved; the salt spoon capable of accurately regulating dosage has a simple structure, is ingenious in design, is convenient to use, enables the usage amount of the salt to be more accurate and is beneficial to human health.

The invention relates to a digital microscope wear scar measurement device and belongs to the field of four-ball friction testing machine detecting equipment. The digital microscope wear scar measurement device comprises a bottom plate seat, a supporting beam, a fine thread supporting rod, a working platform, a digital microscope and a cylinder oil box base, wherein the bottom plate seat is composed of a seat body and a bottom plate, and the working platform is matched with the bottom plate in a sliding manner and provided with a sliding limiting block; the cylinder oil box base is arranged on the working platform in a manner that the axial lead of the cylinder oil box base has an included angle of 54 degrees with the working platform; the fine thread supporting rod is fixedly connected with the seat body, and the lifting of the supporting beam is adjusted relative to the fine thread supporting rod through an embedded nut of the supporting beam; two strong magnet pieces are arranged in two counter bores in one side in the supporting beam; the optical axis of the digital microscope has an included angle of 36 degrees with the axis of the cylinder oil box base, and the digital microscope is vertically connected to a connecting arm of the supporting beam. The digital microscope wear scar measurement device ensures the accurate centering and high-precision fine-tuning focal length of the working platform and provides quick and accurate observation and measurement for the wear scar detection of four-ball friction testing machines.

The combined fiber tracer method and image method for measuring the twist angles of different parts of bunchy yarn. The roving is first surface dyed to reach the bunchy yarn spinning effect similar to that of two kind of roving in different colors; and the spun bunchy yarn is then wound onto one deep color paper board in certain tension for easy measurement. The images capable of showing the fiber trend in the yarn surface are obtained with DZ3 type microscope and image acquiring software and processed with image processing software to measure the twist angles of different sections of bunchy yarn.

The invention provides a method for detecting recombinant human keratinocyte growth factors (rhKGF-1). The method includes steps of 1), cultivating keratinocytes; 2) inoculating the keratinocytes and controlling the density of the keratinocytes; 3), treating rhKGF-1 samples, carrying gradient dilution on the concentration of the rhKGF-1 samples and adding 5-acetenyl-2'-deoxyuridine (EdU) into the rhKGF-1 samples with various rhKGF-1 concentration dilution degrees to prepare loading samples with the series of rhKGF-1 concentration dilution degrees; 4), washing the keratinocytes in keratinocyte plates obtained at the step 2) and removing cultivation media; 5), loading the loading samples obtained at the step 3) into keratinocyte cultivation plates obtained at the step 4) and cultivating and incubating the keratinocytes; 6), solidifying and permeabilizing the keratinocytes, and then carrying out 'Click-iT' reaction on the EdU; 7), arranging the keratinocytes treated at the step 6) in a multifunctional microplate reader, reading the fluorescence intensity (RFU) and computing the biological activity of the rhKGF-1. The method has the advantages of low detection background, high sensitivity, specificity and accuracy, good repeatability and the like. Besides, the method is particularly applicable to detecting the biological activity of the rhKGF-1 and establishing quality standards.

The invention relates to the technical field of measuring devices, and in particular, relates to a low-voltage wire section measuring instrument which comprises an upper clamping piece, a lower clamping piece, a main body and a driving rod, the driving rod is connected with the upper clamping piece, the lower clamping piece is connected with the main body, scale marks are arranged on the main body, and the driving rod is movably connected with the main body through a thread pair. A wire can be measured accurately and efficiently.

The invention provides a method for measuring a spherical outside surface of a bearing. The method comprises the following steps: (1) selecting a standard element, measuring and labeling a sphere diameter D1 at the center point in the width direction of the standard element and a sphere diameter D2 at opposite angles; (2) calibrating a first instrument by using the spherical diameter D1 at the center point of the standard element; (3) calibrating a second instrument by using the sphere diameter D2 at opposite angles of the standard element, wherein the support force of a measurement head and a support point of the second instrument points to the axis of the standard element; (4) measuring the sphere diameter in the middle of a workpiece by using the first instrument under the condition that the calibration state is same as the calibration states in the steps (2) and (3), so as to obtain a deviation value D1', and measuring the sphere diameter at the opposite angles by using the second instrument, so as to obtain a deviation value D2'; and (5) obtaining a difference value by using D1'-D2' and comparing the difference value with the set spherical deviation. The method is convenient and accurate to measure, and is not dependent on the judgment experience of detecting personnel, and the requirements of the product quality are ensured.

The invention provides a method for detecting the height of the slurry surface inside a grouting sleeve by using a standard thickness weight, wherein the method uses a device for detection. The devicecomprises standard weights (1), a connecting line (2), and a weight tube (3). To be specific, the method comprises: connecting the connecting line (2) to one standard weight (1)fixedly and to other weights in series, arranging the connection part at the front end of the weight tube (3), and holding a connecting end or connecting the connecting end fixedly by a fixed support device and leading theweights out of a to-be-detected grouting sleeve though a slurry outlet hole till exceeding the slurry outlet hole of the sleeve by the weights, and indicating the unfilling height of the grouting sleeve according to the led weight thickness sum and a scale displayed by a last weight. The method is accurate and simple and is easy to operate.

The invention relates to a conventional drill hole injection molding track positioning and measuring method under a coal mine, which is applicable to the measurement of a conventional extraction drillhole track under the coal mine. An experiment system device comprises an injection molding extrusion machine, a thermoplastic elastomer (TPE) material raw material, a hose pipe mould and a high-pressure pump; the injection molding extrusion machine is used for heating the TPE material raw material; the hose pipe mould is placed in an extraction drill hole so as to be used for molding the TPE material; and the high-pressure pump is used for pressurizing a injection molding extrusion process. By using the conventional drill hole injection molding track positioning and measuring method under thecoal mine involved in the invention, the conventional drill hole track under the coal mine can be measured and described, so that a track measuring step is simplified, and the track measuring efficiency is improved.