31results about How to "The measurement results are objective and accurate" patented technology

The invention discloses a tea quality rapid detection apparatus and a detection method based on characteristic fragrance, which is characterized in that the characteristic information of the tea fragrance is analyzed and treated, and the quantitative analysis and qualitative analysis are rapidly and accurately carried out on the tea quality. According to the invention, a gas-sensitive sensor array is used for analyzing the tea sample smell aggregation gas in the gas-sensitive sensing device reaction chamber, by comparing the data in a computer and a database, the quality grade information of the detected sample and the characteristic fragrance content information of the detected sample can be output according to the user requirement, the characteristic information of the tea fragrance is analyzed and treated, and the quantitative analysis and qualitative analysis are rapidly and accurately carried out on the tea quality. the detection step is greatly simplified, the pretreatment of the detected sample is not required, the artificial factor interference brought by sensory evaluation can be avoided, the determination result is more objective and accurate, and the invention provides the novel nondestructive test apparatus and the detection method for detecting the tea quality.

The invention relates to a contact screen detecting and overhauling car based on laser radar. The contact screen detecting and overhauling car comprises a detecting car body, a data acquisition unit, a lifting and rotating operation platform and a server used for data analyzing and processing. The data acquisition unit is arranged on the detecting car body. The lifting and rotating operation platform can be rotationally arranged on the back of the top of the detecting car body in a lifted mode and is provided with a display and control panel. The server is connected with the data acquisition unit and the display and control panel. Data collected through the data acquisition unit are analyzed and processed by the server and then transmitted to the display and control panel. According to the contact screen detecting and overhauling car based on the laser radar, the operation effect is improved significantly, the operation time is saved, and the labor intensity is relieved; moreover, after contact screens are maintained, the yield of the contact screens can reach 100%, and artificial misoperations in the maintenance process are avoided effectively.

The invention relates to a noncontact-type tear film breakup time measuring device and method. The noncontact-type tear film breakup time measuring device comprises a structured light projection unit, a first light splitter, a central positioning unit, a second light splitter, a focusing unit, an imaging unit, a shell, a base and a three-dimensional moving platform, the structured light projection unit projects structured light patterns of a certain mode to the surface of a tear film, structured light images modulated by the surface of the tear film are collected by the imaging unit, and whether the structured light patterns in the collected images are distorted or broken or not is detected through upper computer software so as to judge thinning and breaking conditions of the tear film. Tear film breakup time is measured by adopting a method of structured light detection, so that stability of the tear film is unaffected due to a noncontact measuring mode; the device can automatically recognize starting point and finishing point of tear film breakup time measuring to automatically complete the whole measuring process, thereby being objective and accurate in measuring result.

The invention relates to measurement for gas expansion energy in actual underground coal seams, in particular to an actual measurement method of gas expansion energy emitted by coal seams for accurately predicting coal and gas outburst risks and a measurement device thereof, and belongs to the technical field of coal mine safety detection. According to the method, an underground coal seam gas pressure measurement drill hole is utilized, gas pressure and temperature parameters in a pressure releasing process of the pressure measurement drill hole are rapidly collected, and the characteristic that the gas flows through a reducing pipe is utilized, thereby achieving the actual measurement of gas expansion energy emitted by the coal seams. The measurement device comprises a plurality of hole-sealing capsules, and pressure and temperature collecting systems are arranged between adjacent capsules. According to the measurement of gas expansion energy in the actual underground coal seams, the measurement results can comprehensively reflect the influences of various factors such as ground stress, gas factors, physico-mechanical properties and structural characteristics of coal and the like on the coal seam outburst risks.

The invention provides a measuring method of spring bar fastener pressure. The method comprises the following steps: (1) applying an upward load to a spring bar which comprises a toe end acting on a steel rail; (2) measuring a load-displacement relation curve of the load applied on the spring bar while the spring bar move upwards; (3) determining a discontinuity point with a reducing slope coefficient in the load-displacement relation curve as an inflexion point; and (4) determining the load at the inflexion point as the spring bar fastener pressure. The invention further provides a measuring device of spring bar fastener pressure.

The present invention discloses an oscillography-based blood pressure measuring method and device, and aims to acquire accurate blood pressure measuring results. The method comprises sampling pulse wave crests in a pulse wave oscillating curve output by a pressure sensor, the pulse wave oscillating curve being obtained after air cuff pressure is transmitted and processed by the pressure sensor; using a group of sampled crest (xi, yi) as a given data set and fitting a pulse wave amplitude envelope line through a polynomial fitting method; and calculating to obtain a systolic pressure and a diastolic pressure according to a maximum amplitude method and the pulse wave amplitude envelope line. The conventional blood pressure measuring methods are easily influenced by subjective factors and objective environments, but the blood pressure measuring method provided by the present invention is more scientific and is not easily influenced by subjective factors or objective environments, and the obtained measuring results are accurate and objective.

It is a pump inner axis fit clearance dynamic measurement method in machine part measurement field, which uses the running displacement of oil-spray pump inner axis to measure the axis clearance of the inner axis of the spray pump. This method comprises the following steps: first to exert large press force on the head of the pump; the down axis top-lifting device to lift the inner axis of the pump inner axis; and the top axletree outer ring press measurement haulm remains stuck to the inner axis top by spring force; to determine the axis clearance of the inner axis of the pump through the measurement data of the sensor. When the axis clearance value achieves the work art requirements, another sensor measures the height between the outer ring surface of inner axletree and the pump surface.

The invention discloses a thrust measurement system for a micro thrustor in a simulated vacuum environment. The system includes a vacuum thrust measurement device (1), a data processor (2), a high pressure gas cylinder (3), a vacuum pump (4), a thrust sensor (9) and a micro thrustor (20). The thrust sensor (9) is fixed on the bottom part of the vacuum thrust measurement device (1) and a right-angle adapter (10) is fixedly mounted on the thrust sensor (9). The top end of the micro thrustor (20) is perpendicularly fixed on one end of the right-angle adapter (10). A hose (19) is connected with ahigh pressure gas cylinder (3). The other end of the hose extends into the right-angle adapter (10) so as to connect with the micro thrustor (20). The micro thrustor (20) ejects gas and generates a thrust. The thrust sensor (9) measures a thrust data and transmits the data to the data processor (2). Through measuring thrust values of the micro thrustor (20) and environment pressure values in different vacuum degrees and after function fitting deduction on test data, a practical thrust value in a vacuum condition can be obtained and measurement results become more accurate and objective.

The invention belongs to the technical field of textile surface pollen testing, and discloses an apparatus for detecting the pollen adsorptivity index of a textile surface. The apparatus comprises a pollen chamber, a gravity impact pollen removal device and an electron microscope; and a vibrating screen and a roller which are arranged up and down are arranged in the pollen chamber. The gravity impact pollen removal device includes sample brackets, a sample holder and an electromagnetic relay. The invention also discloses a method for detecting the pollen adsorptivity index of the textile surface. The method includes the steps of difficult adsorption property detection and easy shedding property detection. The screen and the roller are used to simulate the pollen floating environment and the movement of pollens autonomously adsorbed by a sample, free fall motion is used to test the difficult adsorption property and the easy peeling property of the pollens on a fabric in order to evaluate the pollen resistance of the sample. The method has the advantages of simplicity in operation, high reproducibility, low cost and good application prospect.

The present invention discloses a front-arranged adjustable electromagnetic drainage valve for treating glaucoma. The front-arranged adjustable electromagnetic drainage valve for treating the glaucomacomprises a drainage disk, a drainage tube is arranged on the drainage disk, a drainage valve is arranged in the drainage tube, the drainage valve comprises a magnetic valve block, guide posts are arranged on the magnetic valve block, fixed blocks are arranged on drainage tube wall of the drainage tube, the guide posts are sleeved and penetrate through the fixed blocks, one ends of the guide posts are connected with the magnetic valve block, the other ends of the guide posts are provided with hard tips, an inner diameter of the drainage tube is gradually reduced along a direction from the guide posts to the magnetic valve block, the drainage tube wall is closely abutted with a periphery of the magnetic valve block, the front-arranged adjustable electromagnetic drainage valve also comprises an external electromagnetic pole, an external electromagnet is magnetically matched with the drainage valve, and magnetic flux of the external electromagnet is changed to control movement of the drainage valve. The front-arranged adjustable electromagnetic drainage valve can adjust drainage quantity of the drainage tube according to actual use requirements through matching of the external electromagnet and the magnetic valve block, can also avoid tube cavity blockage caused by tissue fibrosis, thus realizes self-dredging and reduces a surgery failure rate.

The invention relates to a software performance health measurement method and device. The software performance health measurement method comprises the steps of collecting software operation monitoring data, obtaining a software performance measurement index, and performing multi-dimensional combination scoring on the software operation monitoring data and the software performance measurement index to obtain a comprehensive health degree score. According to the method, the measurement result can be more objective and accurate, the quality grade of the software can be better reflected, a good reference basis can be provided for product research and development personnel, management personnel and architecture personnel, and help is provided for later software optimization and product design.

The invention aims to provide a quantifying method for bitter degree of a multi-component traditional Chinese medicine based on molecule bitter degree equivalent measurement; the quantifying method can effectively measure bitter degree of the multi-component traditional Chinese medicine, so that bitter degrees of different medicines as well as the medicine bitter taste masking problem are quantified and compared more accurately and objectively; a minimum limit method is adopted, bitterness threshold (BT) concentrations, namely lowest concentration tasted by half of volunteers, of water solutions of standard bitter substances and bitter-taste traditional Chinese medicine decoction pieces at 37 DEG C are measured; any standard bitter-taste substance is set, molecular bitter degree equivalentof a to-be-measured medicine is calculated according to a formula of EMBs equal to (Cr/Cs)*EMBr. The quantifying method can measure bitter degrees of bitter tastes of medicines, obtains accurate andobjective measured results, provides quantifying indexes for bitter degree evaluation of the medicines, provides technical support for medicine bitter-taste masking, develops a commercial value of themedicines, improves the taking effect of the medicines, and has remarkable economic and social benefits.