52results about How to "The measurement results are objective" patented technology

The invention relates to a reflecting photometer of golden mark immunity test tape that includes scanning platform, optical system, phototranslating and signal multiplication system and data gathering and control system. The scanning platform is used to locate tested golden mark immunity test tape, and the optical system includes plural illuminating optical paths and a receiving optical path. Each illuminating optical path contains a light source and an illuminating condensing lens. The receiving optical path is made up of collimating mirror, filter, condensing lens and slit diaphragm. The phototranslating and signal multiplication system is made up of phototranslating components and pre-amplification circuit, the data gathering and control system is made up of multifunction data gathering card and computer. The invention could accurately judge the tested object and the thickness. It also has the advantages of high sensitivity, objective testing result and flexible to use.

The invention relates to a comprehensive determination method for a coefficient of the roughness of a rock mass structure surface. The comprehensive determination method is suitable for the comprehensive determination on the coefficient of the roughness of the multiple forms of rock mass structure surface. Topography data of the integral rock mass structure surface can be obtained at a time through a three-dimensional laser scanner or a rock mass structure surface topography instrument and accordingly the condition that the measurement result of one line segment cannot represent the roughness of the integral rock mass structure surface previously is changed and the measurement result is objective and real. A typical curve is straightened in the space, an X coordinate and a Y coordinate of every point are changed, a Z coordinate of every point remains unchanged, the representation is performed on the roughness of the three-dimensional rock mass structure surface by a two-dimensional method, the comprehensive analysis is performed by four calculation methods, and accordingly a finally determined coefficient value of the roughness of the rock mass structure surface is accurate. The comprehensive determination method is comprehensive in consideration, simple in calculation and accurate in result.

The invention discloses a comprehensive analysis system for xerophthalmia. The comprehensive analysis system comprises an imaging system, an analyzing system and a video terminal, wherein the imaging system comprises a lighting source, an imaging assembly, a control panel and a camera shooting module, the lighting source penetrates through the imaging assembly and irradiates the eyes of a patient, and the camera shooting module carries out imaging on the eyes of the patient, and transmits the generated image to a PC machine through a USB interface; the analyzing system is arranged at the PC machine end, and comprises a communication module, an image data collecting module, a tear film breakup time check module, a lacrimal rivus height measuring module, a meibomian gland image collecting and enhancing module, a lipid layer analyzing module, a data analyzing module and an information management output module; the video terminal is connected with the analyzing system. With the comprehensive analysis system for xerophthalmia provided by the invention, the functions of tear film breakup time statistics checking, lacrimal rivus height measurement, meibomian gland image collection and enhancement, human eye lipid layer analysis, and the like are realized, a basis is provided for the clinical diagnosis for xerophthalmia, and the comprehensive analysis system is applied to the medical treatment in the relevant fields of clinical diagnosis of the ophtalmology department.

An embodiment of the invention discloses a device for detecting a wheel hub and an automobile component product. The device comprises a frame body, a lifting and lowering detecting device, a first workpiece conveying mechanism, a second workpiece conveying mechanism and a workpiece clamping and moving mechanism. The lifting and lowering detecting device comprises a bracket, a lens fixing plate, alifting and lowering device, a backlight source, a detecting platform, a lens and a camera. The lens is disposed on the lens fixing plate, the camera is disposed under the lens, the detecting platformis disposed above the lens, and the detecting platform is provided with a window penetrating the thickness direction of the detecting platform, a lower surface of the detecting platform is provided with a front light source, and the lifting and lowering device is respectively connected to the lens fixing plate and the detecting platform. Through the cooperation of the camera, the lens and the combined light source, the non-contact online detection is achieved, the automatic data acquisition, processing and automatic identification are completed by a vision system and a control system in the whole process, human subjective factors are reduced, the manual processing is not needed, the detection efficiency and detection accuracy are improved, and the labor cost is reduced.

The invention relates to a ship motion state digital image measuring method in a bridge collision test. According to the method, at first, an integral space rectangular coordinate system, a camera rectangular coordinate system and a rectangular coordinate system on a camera shooting plane are respectively set up, secondly, relation among the rectangular coordinate systems is set up, and A, B, C and D point coordinates of the shooting range ABCD and the coordinate of any point P of a camera on the plane are calculated; thirdly, feature points are selected from the area ABCD, pixel positions of all the feature points in an image are identified in the image, and linear systems of equations are set up and solved to obtain the mapping relation between the image and real space; finally, displacement of a ship body in the plane can be determined according to the mapping relation by identifying the feature points on the ship body. As a non-contact mode is adopted, the method is high in measurement precision, and the effect is more remarkable for large-scale test measurement in particular.

The invention discloses a planetary gear spherical surface measuring device which comprises dial indicators, dial indicator frames, a screw and a tooth mould seat. A conical tooth ring is arranged in the upper part of the tooth mould seat, and a positioning component of a circular hole is arranged at the lower part the tooth mould seat. The dial indicator frames are umbrella-shaped frame components, spherical trisection fork strips are arranged on the top, and vertical shafts are connected to the lower parts of the dial indicator frames. The bottom section of the vertical shaft is in clearance fit with the circular hole of the bottom face of the tooth mould seat and the middle section of the vertical shaft is in clearance fit with the inner hole of a planetary gear to be tested. The spherical surfaces on the top of the dial indicator frames are concentric with the spherical surface of the planetary gear to be tested which is positioned and arranged on the tooth mould seat; the three fork strips are respectively provided with one dial indicator which is installed into a through hole in a way that the dial indicator head faces downwards; through holes on the three fork strips are respectively arranged on an outer point, a middle point and an inner point of the spherical surface of the planetary gear to be tested; according to the invention, the standard planetary gear is arranged in the tooth mould seat, the three dial indicators are zeroed, then the planetary gear to be test is installed for comparative measurement, and the installation position of a cutter or a clamp is guided to be adjusted according to a real measurement result. The planetary gear spherical surface measuring device is not restricted by particular detection conditions, and is particularly applicable to the on-line detection of a production site.

The invention discloses a dry eye disease full-automatic detecting apparatus, which comprises a probe assembly, a handle, a portable device and an analysis device, wherein the probe assembly comprises an imaging assembly, a lighting source, a camera module, a camera fixing device, a control board and a cover plate; the imaging assembly comprises an optical filter, a fixed sleeve and a conical drum; the conical drum is of an annular structure chequered with black and white; black rings are formed by conducting silk-screen printing with oil ink, and the oil ink is transmissive in infrared light and is non-transmissive in white light; one end of the handle is connected to the lower end of the probe assembly; the portable device comprises a base, a head supporting assembly, an adjusting handle rod and an adjustable workbench assembly; and the analysis device comprises an image data acquisition unit, a data detection unit and a data analysis unit. According to the detecting apparatus provided by the invention, the black annular structures on the conical drum is invisible to some infrared light while is visible to the white light, so that the demands of four imaging modes are satisfied; and it is unnecessary to detach the Placido conical drum when the detecting apparatus is used, so that a using process is simplified and the conical drum is prevented from getting lost easily.

The invention provides a falling type corn ear holographic character rapid measuring system and method. The falling type corn ear holographic character rapid measuring system comprises a conveyer which is used for enabling single-ear corn ears to sequentially fall off in vertical states, an image collection device which is connected with the conveyer which is used for collecting omni-bearing images of the fallen single-ear corn ears, a processing device which is connected with the image collection device and used for controlling the image collecting device to collect the omni-bearing images, obtaining the single-ear corn ears omni-bearing images collected by the image collecting device, splicing the omni-bearing images, performing three-dimension space coordinates according to parallax of the omni-bearing images, restoring space distribution information of the single-ear corn ears and accordingly calculating ear character parameters of the obtained single-ear corn ears. The falling type corn ear holographic character rapid measuring system can achieve measurement of core ear characters and ear character parameters without damage and is rapid in measurement speed, accurate in measurement result, low in costs and high in efficiency.

The invention provides a method and a system for determining the rain intensity of a corona cage raining device under a breeze condition. According to the method and the system, the method comprises:under the condition that wind exists, calculating the horizontal displacement of the raindrops under the action of horizontal wind; determining the positions of the water drops in the spray holes in the horizontal plane of the wire, determining the number of the spray holes for dropping the rain drops in the units with the same area divided by the horizontal line of the wire, and comparing the number with the number of the spray holes for dropping the rain drops in each unit in the absence of wind to determine the rain intensity of each unit in the horizontal line of the wire. According to themethod and the system, the inaccurate measurement result caused by monitoring the rain intensity only through 1-2 rain gauges under the corona cage in the prior art is well corrected. Therefore, themeasurement result is more objective and closer to the actual situation, more accurate reference data is provided for selecting a proper wire section and a configuration mode, and the environmental friendliness of power transmission and transformation engineering and the economical efficiency of engineering cost are facilitated.

The invention discloses a measurement and representation method for softness of tobacco leaves. Water balance is performed on the tobacco leaves to be measured for the first time, the normal water content of the tobacco leaves is restored, and cut small pieces can be prevented from being broken and are kept complete. A cutter with a square cutting edge is adopted for cutting in a leaf-pressing mode so that the uniform size specification of the cut small pieces can be guaranteed, wherein the specification of the square cutting edge is 20 mm*20 mm. Through cutting 6-10 small pieces at symmetrical inter-vein positions on the two sides of each main vein, the average value is measured and calculated, the result can be more approximate to the real value of each whole tobacco leaf, and through removing the small pieces with obvious leaf veins on the surfaces, influences on the measurement result by the leaf veins can be removed. Through flattening, the cut small pieces are unfolded, and interference on the measurement result by curling, twisting and shrinking of the leaves can be avoided. Through secondary water balance, the small pieces reach the same regulated water condition before measurement, and through specifying a slit with the width of 5 mm and measuring softness, in the front transverse direction and longitudinal direction, of all the cut small pieces of the leaves, it is guaranteed that the measurement condition and the measurement mode are uniform. The result calculation method and expression mode achieve quantified expression of qualitative indexes.

The invention relates to a chlorine dioxide content determination method which adopts the previous four steps in a five-step iodometry method. The method is characterized in that the phosphate buffer solution is added in the step 1 and the step 3 until the pH value of the test solution is 7; 15-20 ml of potassium iodide solution is added in; and 2.5mol/L hydrochloric acid solution is added in the step 2 and the step 4 until the pH value is 2. The invention ensures that the added phosphate buffer solution meet the requirement of neutral pH and also ensures the potassium iodide solution sufficient so as to obtain sufficient reaction, and the pH value of the obtained solution is adjusted to 2 after the values A and C are measured; and except for the influence of the pH value of the solution to all the components thereof, the invention can determine the content of ClO2 in the chlorine dioxide disinfectant, is objective and accurate in measuring result and can reflect the contents of all the components in the chlorine dioxide disinfectant.

The invention discloses a paraffin smell level identification device, which comprises a paraffin smell information dynamic collecting device and au upper computer, and the paraffin smell information dynamic collecting device comprises a dynamic headspace sample feeding device and a smell collecting device test box body, and the dynamic headspace sample feeding device comprises a headspace diffusion device, and a gas intake pipe installed at the upper end of the headspace diffusion device; one side of the smell collecting device test box body is connected with the headspace diffusion device through an air pump; and the other side of the smell collecting device test box body is connected with an exhaust pipe through an exhaust pump. The smell collecting device test box body is provided witha sensor array. The sensor array is composed of 8 metal oxide gas sensitive sensors. The gas sensitive sensors send collected analog signals to a data acquisition card through a conditioning module, the data acquisition card transmits data to a PC by a serial port, and paraffin sample smell level grading can be completed by multiple modes of recognition combined platforms. The paraffin smell levelidentification device has the advantages of scientific and reasonable method, short process, convenient operation, fast recognition rate, high accuracy, and the like.

The invention discloses an automatic measuring system for the heat resistance of a thermoplastic material, relates to a thermoplastic material and provides an automatic measuring system for the heat resistance of a thermoplastic material, which has high measuring accuracy and high automatic degree. The automatic measuring system is provided with a light source, an optical information conversion device, a CCD (Charge Coupled Device) camera, an image acquisition card, a sample platform, input equipment, a computer and output equipment, wherein light rays emitted by the light source are directly radiated on an impression sample arranged on the sample platform; reflected light rays of the impression sample are focused on the CCD camera through the optical information conversion device; the digital signal output end of the CCD camera is connected with the image acquisition card; the image acquisition card is connected with the computer; and the input equipment and the output equipment are connected with input and output ports of the computer respectively. The automatic measuring system has the advantages of accuracy as high as +/- 10 mum, objective measuring result, high automatic degree and time and labor saving.

The invention provides a device for measuring back vertex power of a lens. The device comprises a light source, a target reticle, a collimator objective and a telescope. An afocal target is generated by means of the collimator objective through the target reticle illuminated by the light source, the to-be-tested lens is arranged between the collimator objective and the telescope, an image space reticle is adjusted so that a clear image of the target reticle is obtained in the telescope, and the back vertex power phi is obtained in a calculating mode through a formula. According to the method, what is measured is the back vertex power in principle, approximation does not exist, the target is arranged to be afocal in the method that the collimator objective is additionally arranged, an instrument measurement device is shortened, integration can be achieved, and accordingly an instrument occupies little space, daily maintenance, detection and calibration are facilitated. Due to the fact that the focal length of the telescope is long enough, the measurement accuracy is greatly improved. The vertex power and the moving distance of the image space reticle are in a linear relationship, and accordingly the moving distance is shorter when the same measurement accuracy of the measurement device needs to be reached. The length measurement can be achieved through a mechanical rule, and cost of the instrument is reduced.

The invention discloses a device and a method for testing time domain pulse shielding effectiveness of a small shielding body. The device for testing time domain pulse shielding effectiveness of the small shielding body comprises a pulse transmitting system, an antenna system, a shielding body to be tested and a receiving system. Through the specific structural arrangement, pulse signals instead of continuous wave signals are used as measurement signals, frequency information is obtained through time domain-frequency domain conversion, full-band measurement can be completed through one-time measurement, the principle is closer to the actual use condition, the measurement result is more objective and real, such that the time domain pulse shielding effectiveness test operation steps of: thesmall shielding body are simpler and more convenient, and the measurement efficiency is more precise.

The invention discloses an intelligent multi-curved surface detecting system and method of a railway vehicle. The system comprises: a measuring module for detecting a height value of a point to be measured on a bottom surface of a carriage; a wireless receiving module for transmitting received data to an industrial personal computer; and the industrial personal computer for remotely controlling and measuring the measuring module. The intelligent multi-curved surface detecting system disclosed by the invention achieves high-precision detection of planeness of the bottom surface of the carriagein a manufacturing process of the railway vehicle, and the stability of a reference plane is improved; and by means of a PSD detection with precision higher than 1mm, the accuracy of measurement datais improved.