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 discloses a VOCs gas detection system and method. The system comprises a VOCs gas detector and an upper computer. The VOCs gas detector comprises a machine case, a sample injection module, a detection module and a control module. The sample injection module, the detection module and the control module are installed inside the machine case; the detection module comprises a gas chamber and a gas detection sensor; the sample injection module comprises a valve and a pump; the control module comprises a master control board and a power module; according to the system, a PID sensor is used for detecting the VOCs gas concentration in the environment to be detected, reasonable analysis is performed through output of the sensor, the concentration of the gas to be detected is determined, on-site online measurement of VOCs gas is achieved, on the basis of upper computer software, and the real-time display and storage function of detection data is achieved. The whole detection process is simple and easy to implement and good in real-time performance, low-concentration detection can be performed without pre-concentration treatment, and the instrument is easy and reasonable to install, and has the good crushing resistance and shock resistance.

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 invention provides a detection device of the torsional deformation of a hoisting hook. The device comprises a clamp, a reference hook frame and a slide measurement frame, wherein the reference hook frame is designed into a shape of a theoretical central line of a hook to be measured; and the slide measurement frame measures an actual central line in a slide mode along the reference hook frame. The invention also provides a detection method of the torsional deformation of the hoisting hook, which comprises the following steps: clamping and fixing the reference hook frame on a handle part of the hook to be measured through the clamp and a positioning pointer welded on the reference hook frame; operating the slide measurement frame and recording a lateral outline central line of the hook to be measured; fitting out the actual central line; and comparing the theoretical central line with the actual central line to calculate out a torsional deformation angle. The invention has quick and convenient measurement process, no need of extra shut down, quantitative and objective measurement result and simple manufacture and is suitable for inspection and detection of various hoisting hooks.

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 invention discloses a portable pupil diameter measuring instrument which comprises an eyeglass frame and foldable eyeglass brackets arranged on two sides of the eyeglass frame. A base block is arranged in the eyeglass frame, an assistant supporting plate is arranged on the eyeglass frame, and a camera module, a lighting system, a distance sensor and a display screen are arranged on the base block. The portable pupil diameter measuring instrument has the advantages that the instrument is simple in structure, portable, easy to use, objective and accurate in measuring result and similar to eyeglasses in size; when in use, measuring can be started by only wearing the instrument on eyes, turning on a power source and pressing down related buttons; a CCD (charge coupled device) camera is used to replace conventional comparison scales for measuring, infrared illumination is adopted to enhance pupil display, a human eye artificial neural network model is adopted to automatically capture the position of a pupil, and measuring results are more scientific and reliable; an assistant structure of the instrument can expand an eyelid, so that working efficiency of working personnel is improved.

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 method for quantifying specific bitterness of a medicine. The method comprises the following steps: at 37 DEG C, by a classic population tasting experimental method, tastingbitterness at the mass volume concentration (Cr) of a reference solution by twenty or more trained volunteers to acquire standard apparent bitterness, namely moderate bitterness 3; by a method of establishing an effective standard apparent bitterness-concentration model of a substance to be tested first and then reversely reckoning the concentration, acquiring the corresponding concentration (Cs)under the equal bitterness of the sample to be tested, wherein the specific bitterness ROB is equal to (Cr) / (Cs). By the method for quantifying the specific bitterness of the medicine, the bitternessof a traditional Chinese medicinal single substance can be effectively measured, an accurate and objective measurement result is obtained, a quantitative index is provided for bitterness evaluation of the medicine, a technical support is provided for taste masking of the medicine, the commercial value of the medicine is exploited, and the medicine taking effect is improved; therefore, the methodfor quantifying the specific bitterness of the medicine has significant economic and social benefits.

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 discloses a high-precision multifunctional soil sensor. The high-precision multifunctional soil sensor is characterized in that an 'O'-shaped sealing ring of a silicon-pressure core body is arranged in an armored sleeve; a pressure joint is arranged at the top end of the armored sleeve by threads; a pressing ring is connected with the silicon-pressure core body in a tightly pressing manner by threads and the pressure joint; a signal processing circuit board is fixed on the pressing ring by installing screws; a shell and the pressure joint are connected into a whole body by argon-arc welding; silica gel is potted and sealed in the whole body; a porous cup is connected to one end of the armored sleeve closely; a hollow round pipe is arranged in the porous cup; deionized water in the hollow round pipe overflows outwards by the porous cup; a sensing contact is arranged at the other end of the armored sleeve and is used for sensing the internal pressure change of the hollow round pipe. According to the high-precision multifunctional soil sensor disclosed by the invention, the soil moisture characteristic curve is directly outputted, the measurement procedure is simple, and the measurement result is objective and accurate, and the soil sensor has the advantages that the permeation performance is good, the volume is small, the weight is light, an all-stainless-steel water-tight structure is adopted, pressure and corrosion are resisted, the stability is good, the comprehensive precision is high and the errors are fewer and the like.

The invention discloses an automatic detector of the cleanliness of fibers and a detection method thereof. The automatic detector comprises a liquid storage box, a testing pipe, an LED light source, an illumination sensor and a liquid level sensor, wherein the liquid storage box is internally provided with a liquid level switch; the lower part of the liquid storage box is provided with a liquid inlet pipe connected with the testing pipe; the side surface of the liquid storage box is provided with a liquid overflow port, and the other side of the liquid storage box is connected with a cleaningelectromagnetic valve; the bottom end of the testing pipe is provided with the LED light source and a concave lens; the bottom of the testing pipe is connected with the liquid level sensor; the top end of the testing pipe is provided with the illumination sensor; the side surface of the upper part of the testing pipe is provided with a ventilation opening connected with the liquid overflow port; one side of the bottom of the testing pipe is connected with a liquid inlet electromagnetic valve, and the other side of the bottom of the testing pipe is connected with a liquid discharge electromagnetic valve; and one side of the testing pipe is parallelly provided with a calibration pipe. The invention adopts a vertical light path measuring method and has high measurement automation degree and accuracy; in addition, the influence of human factors and environmental factors on a measuring result is avoided, thereby a measuring result is objective and accurate.

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 relates to a composite sensor which is used for measuring the characteristic curve of soil moisture. The composite sensor comprises a sensing unit and a signal processing circuit; the sensing unit consists of a sheathed casing, a porous cup and a pressure sensing element. The sheathed casing is used for transforming the changes of the soil moisture into the change signals of self impedance; the porous cup is closely connected with one end of the sheathed casing and provided with a built-in hollow cylinder; deionized water in the hollow cylinder overflows through the porous cup; the pressure sensing element is arranged at the other end of the sheathed casing and can be used for sensing the change of internal pressure of the hollow cylinder; the signal processing circuit is used for detecting the change signals of self impedance and the pressure changes, and acquiring the signals of soil moisture content and the signals of soil matrix potential, so as to output the characteristic curve of soil moisture.

The invention discloses a tea quality rapid detection device and detection method based on characteristic aroma, which can quickly and accurately perform quantitative and qualitative analysis on tea quality by analyzing and processing characteristic information of tea aroma. In the present invention, the gas sensor array is used to analyze the odor accumulation gas of the tea sample sent into the reaction chamber of the gas sensor device, and the computer is compared with the data in the database to output the quality grade information of the tested sample or the tested sample according to the needs of the user. The characteristic aroma content information of the test sample can be analyzed and processed by the characteristic information of the tea aroma, and the tea quality can be quickly and accurately analyzed quantitatively and qualitatively, which greatly simplifies the detection steps and does not require pretreatment of the sample to be tested. The interference of human factors caused by sensory evaluation makes the determination results more objective and accurate, and provides a new type of non-destructive testing device and testing method for tea quality testing.

A dynamic detection method for the axial fit clearance of the inner shaft of the pump in the field of mechanical component detection. The axial clearance of the inner shaft of the fuel injection pump is measured by using the axial movement displacement of the inner shaft of the fuel injection pump. The pressing force is pressed, the lower axial jacking mechanism lifts the inner shaft along the axial direction of the inner shaft of the fuel injection pump, and the upper bearing outer ring press-in amount measuring rod is kept close to the upper part of the inner shaft by spring force, and is measured by the sensor The data determines the axial clearance of the inner shaft of the fuel injection pump. When the axial clearance value meets the process requirements, another sensor measures the height from the end surface of the inner shaft bearing outer ring to the end surface of the pump body. The invention has the advantages of simple mechanical structure, good cost performance, reliable, objective and accurate measurement process, high repeatability, simple and rapid operation; and objectively reflects the dynamic situation of the measured object in the actual working state, eliminating the need for various components The impact of tolerance and system error on measurement results is suitable for mass measurement in production lines.

The present invention provides a multifunctional facial deflection measuring and indicating device, which includes a head fixing part and a horizontal position indicator 1, a left measuring part for measuring the vertical distance of the left positioning point, and a measuring part for measuring the median positioning point The middle measuring piece of the vertical distance and the right measuring piece used to measure the vertical distance of the right positioning point, the head fixing piece includes a strap and a three-axis positioning piece, and the middle part of the three-axis positioning piece is provided with a level indicator one, The two ends of the three-axis positioning piece are respectively connected with straps, the end of the middle measuring piece is movably connected to the middle of the three-axis positioning piece, and the end of the left measuring piece and the end of the right measuring piece are respectively movably connected to the two ends of the three-axis positioning piece The device can measure the vertical distance from the left positioning point, the center positioning point, the right positioning point to the head fixing part after the head fixing part is fixed on the patient's forehead and adjusted to a horizontal state, and obtain the measurement results, The measurement results are objective and accurate, and then it is possible to effectively determine whether there is skew based on the measurement results.

The invention provides a detection device of the torsional deformation of a hoisting hook. The device comprises a clamp, a reference hook frame and a slide measurement frame, wherein the reference hook frame is designed into a shape of a theoretical central line of a hook to be measured; and the slide measurement frame measures an actual central line in a slide mode along the reference hook frame. The invention also provides a detection method of the torsional deformation of the hoisting hook, which comprises the following steps: clamping and fixing the reference hook frame on a handle part of the hook to be measured through the clamp and a positioning pointer welded on the reference hook frame; operating the slide measurement frame and recording a lateral outline central line of the hookto be measured; fitting out the actual central line; and comparing the theoretical central line with the actual central line to calculate out a torsional deformation angle. The invention has quick and convenient measurement process, no need of extra shut down, quantitative and objective measurement result and simple manufacture and is suitable for inspection and detection of various hoisting hooks.

The invention discloses a pre-type adjustable electromagnetic drainage valve for treating glaucoma, comprising a drainage plate, a drainage tube is arranged on the drainage plate, a drainage valve is arranged in the drainage tube, the drainage valve includes a magnetic valve block, and the magnetic valve block is There is a guide column, and a fixed block is provided on the drainage tube wall of the drainage tube. The guide column is sleeved through the fixed block. One end of the guide column is connected with the magnetic valve block, and the other end of the guide column is provided with a hard tip. The inner diameter of the drainage tube is along the The direction from the guide column to the magnetic valve block gradually decreases, and the wall of the drainage tube is in close contact with the outer periphery of the magnetic valve block. It also includes an external electromagnetic pole, and the external electromagnet is magnetically matched with the drainage valve. By changing the magnetic flux of the external electromagnet Control the movement of the diversion valve. The present invention can adjust the drainage volume of the drainage tube according to the actual use requirements through the cooperation of the external electromagnet and the magnetic valve block, and can also avoid the blockage of the lumen caused by tissue fibrosis, thereby realizing self-dredging and reducing the cost of surgery. failure rate.

The invention relates to a method for measuring molecular bitterness of a medicine on the basis of bitterness threshold (BT) concentration. The method comprises the following steps: preparing a seriesof low-concentration solutions of a standard bitter substance and a to-be-tested monomer; at 37 DEG C, performing typical people taste experiment on the series of low-concentration solutions of the standard bitter substance and the to-be-tested monomer by a 'typical psychophysics minimum limit method'; measuring the number of people tasting bitterness under different concentration, performing outlier removal and calculating the final ratio of people tasting bitterness; and establishing a Wible equation between the obtained people number ratio and different concentration. According to the method, the bitterness threshold concentration is established by utilizing the typical people taste experiment and the typical psychophysics minimum limit method, quantitative index for bitterness evaluation of the medicine is provided, technical support is provided for medicine bitter taste masking, the commercial value of the medicine is exploited, the taking effect of the medicine is improved and remarkable economic and social benefits are achieved.

The invention discloses a detection method for internal clearance of a hydraulic torque converter used in the field of detection of mechanical parts. Use the gravity drop principle of the internal turbine of the hydraulic torque converter or the loose parts to be tested to measure the internal clearance of the hydraulic torque converter. The measuring rod extends from the bottom of the hydraulic torque converter pump shaft with a small tightening force, the measuring rod touches the turbine or the loose parts to be tested, then the measuring rod pushes upwards to tighten the turbine or the loose parts to be measured, and then the measuring rod resets , and freely fall to the original position with the turbine or the loose parts to be tested, the measuring rod is kept close to the turbine or the loose parts to be tested by the spring force, and the internal clearance of the torque converter is determined through the measurement data of the configured sensor. The invention has the advantages of simple mechanical structure, reliable measurement process, high repeatability, simple and rapid operation, and is suitable for mass measurement in production lines.

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.