59results about How to "Simplify the measurement procedure" patented technology

The invention discloses a method for analyzing the components of iron ore by using an X-ray fluorescence spectrum, which comprises before-analysis preparation (1) and analysis report submission (5), and the steps between the before-analysis preparation (1) and the analysis report submission (5) including molten sample manufacturing (2), detection by an internal standard method (3) and analysis by a calibration curve method (4), wherein in the before-analysis preparation (1) step, a working curve (16) is built; in the detection by an internal standard method (3) step, an internal standard line of a molten sample is measured; and in the analysis by a calibration curve method (4) step, the measurement results of the molten sample are obtained. The method completes the measurement of all elements in the iron ore by melting once, is high in measurement accuracy, simplifies process and time for measurement, reduces cost of the analysis of the components of the iron ore, and is suitable to be applied to the iron and steel industry and researches.

The present invention relates to an electrochemical biosensor strip comprising a base which has a front side and a back side, an electrode system on the front side of said base, a code-recognition element on one end of the back side of said base, a cover which is located on said electrode system, and a reaction area which is in touch with said electrode system for a reaction to take place. By forms of said code-recognition element provided in the present invention, a biosensing device will automatically choose a specific set of calibration code corresponding to a particular batch of the electrochemical biosensor strip while coupling to the strip. Hence, the present invention eliminates the calibration step carried out by users and simplifies the measuring procedure, avoiding the inaccurate results due to the omission or improper operation of the calibration step by users. The present invention further relates to a method for identifying a corresponding biosensing device by using a ratio of lengths of each length-changeable area of the strip.

The invention discloses a method for measuring a balance coefficient of an elevator. The method comprises the following steps of: fixedly clamping a steel wire rope clamp on a steel wire rope on the heavy side in the elevator, fixedly arranging a pair of force-measuring sensors below the steel wire rope clamp, keeping the force-bearing surfaces of the pair of the force-measuring sensors always vertical to the steel wire rope, enabling the steel wire rope clamp to be freely pressed on the force-bearing surfaces of the pair of the force-measuring sensors when an elevator car on the two sides ofan elevator traction wheel and the position of an elevator counter weight are positioned at the same horizontal position, measuring the difference between the elevator car and the elevator counter weight by using the pair of the force-measuring sensors, and then calculating the balance coefficient of the elevator according to the formula that K is equal to (W-G)/Q. In order to implement the measuring method, the invention further correspondingly provides a device for measuring the balance coefficient of the elevator, and the device is simple in structure and can implement the direct measurement of the balance coefficient of the elevator.

The invention relates to a method for detecting the pulmonary artery blood pressure by using a heart sound analysis method of a multilayer feedforward network. The method comprises the steps of: extracting a heart sound signal; preprocessing the heart sound signal by fast Fourier transform and normalized average Shannon energy distribution to obtain heart sound signal features; filtering the heart sound signal features by using a principal component analysis method; and performing training learning on the filtered hear sound signal features by using a perceptron neural network or a multilayer perceptron feedforward neural network to obtain an optimal neural network between the heart sound signal features and a pulmonary artery blood pressure value. The heart sound signal features are signal features of a first heart sound and a second heart sound; the heart sound signal features comprise crest frequency, average frequency, crest amplitude, average amplitude, duration and time interface of heart sounds. By adopting the method for detecting the pulmonary artery blood pressure by using the heart sound analysis method of the multilayer feedforward network, provided by the invention, the pulmonary artery blood pressure can be easily and conveniently detected at low cost in a non-intrusive and no risk manner.

Measurement method and test structures for measuring interconnect coupling capacitance in an IC chip are provided. This method employs CBCM technique. In the first step, two test structures are used to measure a target configuration in order to obtain the total capacitance C of a metal line with respect to ground including line-to-line, fringe and area components(C=2C_c+2C_f+C_a). In the second step, two other test structures are used to measure a dummy configuration in order to obtain the area and fringe capacitance C_dummy of the metal line with respect to ground including fringe and area components (C_dummy=2C_f+C_a). After the two steps, the coupling capacitance C_c between the metal line and another line can be determined according to the formula C_c=(C-C_dummy)/2.

A method of counting microorganisms or cells in a sample by labeling the microorganisms or cells with a fluorescent labeling reagent, which comprises contacting the sample containing the microorganisms or cells with an adhesive sheet having an adhesive layer laminated on at least one surface of a substrate to capture the sample; before fluorescent-labeling the microorganisms or cells, obtaining a first fluorescent image of the sample; after fluorescent-labeling the microorganisms or the cells, obtaining a second fluorescent image of the sample, and then determining the difference in the number of luminous points between the first and second images, or determining a differential image between the first and second images and determining the number of luminous points in this differential image, or determining the number of luminous points among the luminous points in the second image located outside non-sensitive regions attached to the individual luminous points in the first image.

The invention relates to a method for measuring the normal temperature resistivity and the resistance temperature coefficient of a conductor at variable temperature. The method is characterized by installing a two-point electronic temperature measurement probe on a standard bridge test stand, introducing a microhmmeter measuring signal and an electronic temperature measurement probe signal into a computer acquisition card, simultaneously and continuously recording resistance values and temperature changes by using a computer, changing the room temperature by using an indoor air-conditioning device, computing the resistivity by using the recorded resistance values at different temperature and the cross section area measured by a density method, obtaining the variable linear slope K of a resistor R relative to temperature T according to a fitting curve, and computing the slope K by using a resistivity temperature variation coefficient [alpha]. The method uses a universal measuring bridge with the electronic temperature probe and the air conditioner temperature change so as to solve a puzzle in common laboratory conductor resistivity and temperature coefficient measurement, and is simple in measurement procedures and high in efficiency compared with a standard measuring method.

The invention discloses a combustion particle multi-parameter measurement device and method adopting blue-ray back lighting. The device comprises a blue-ray light source, a camera and a computer, wherein the camera consists of a lens, a beam splitter, a blue-ray band-pass filter, a blue-ray cut-off filter, a first image sensor and a second image sensor. The blue-ray light source illuminates a region to be measured in a back lighting mode, the beam splitter is installed behind the lens, the lens receives light beams emitted by the blue-ray light source and light beams scattered by measured particles in the region to be measured, the beam splitter divides light entering the lens into two split light beams identical in spectral composition and intensity, one split light beam is filtered by the blue-ray band-pass filter and then is received by the first image sensor, the other split light beam is filtered by the blue-ray cut-off filter and then is received by the second image sensor, and the first image sensor and the second image sensor convert optical signals into television signals to be transmitted to the computer so as to perform image processing for characteristic information obtaining. The technical problem that flame self-emitted light and backlight for illumination are mutually interfered in the image acquisition process is solved.

The present invention discloses a non-invasive method of measuring skin thickness and blood glucose concentration of a subject by a Raman system. The advantage of the present invention is that a single Raman spectrum is used to measure both the skin thickness and glucose concentration. The skin thickness and Raman intensity retrieved from the same Raman spectrum are both utilized to yield a more accurate blood glucose concentration. The present invention also discloses a Raman system for measuring physiological data of a subject. It comprises a Raman spectroscopic unit and a signal processing unit.

A stationary, ergometric exercise apparatus including a hand/foot-operated drive with two drive elements that are operated alternately and a measuring device for measuring the drive force applied to the drive force includes a measuring device for measuring the angular position of the drive, having a pair of sensor devices which are arranged in positions opposite to each other relative to a wheel that is joined to the drive so as to be synchronous in motion with it, which positions each correspond to a position in motion of a load alternation between the two drive elements. A computer receives the signals from the force measuring device and calculates the temporal progress of the drive force, as well as variables that can be derived from it, and alternately output a dedicated right or left limb reading for a person in training depending on the load alternation notified by the measuring device.

The invention belongs to the technical field of manufacture and measurement of measuring devices, more particularly relates to a high-precision automatic measurement method of axial size of abrupt-change cross section of a revolving body. The measurement method is based on the principles of adopting a high-precision linear array CCD optical imaging technology and a high-precision motion control technology, performing rapid measurement on a contour line at longitudinal section of the revolving body to obtain contour data of the revolving body, calculating curvature change of the contour line of the revolving body, and seeking local extremum points of the curvature change on the contour line to obtain the axial position of the abrupt-change cross section, thus calculating the axial size of the abrupt-change cross section. The measurement method is suitable for rapid measurement of the axial size of grooves, benches, frustums and the like of various complex revolving body parts, and the method is especially suitable for revolving body parts which are provided with small-space grooves and can not be easily measured by a contact method.

The invention relates to medicine. The inventive device for measuring intracranial pressure in newborns and babies comprises a body, a supporting member with a leveling surface on the end face thereof, a movable bush which is provided with the supporting member coaxially attached thereto and which bush is arranged in the body so as to be capable of carrying out a limited reciprocating motion to produce a static load on the bregmatic fontanel, a rod with a flat base which is accommodated in the movable bush cavity so as to be capable of moving with respect to the supporting member and producing an impact action for deforming the bregmatic fontanel, a rod moving system provided with a measuring coil which is connected to a control, processing and display unit for converting a signal received from the measuring coil in order to determine the intracranial pressure and display the obtained results. The supporting member is designed in the form of a bush with a leveling surface on the end face and is provided on the outer side with a limiter of the deformation produced by the static load on the bregmatic fontanel, the leveling surface of the supporting member is projected beyond the contact surface of the limiter, wherein said contact surface is inclined to a plane which is tangent to the leveling surface in such a way that a distance between the contact surface and the tangent plane increases in the direction towards the periphery of the limiter of the deformation produced by the static load on the bregmatic fontanel.

The present invention provides a method for a method for measuring the properties of liquid based on a quartz crystal microbalance sensor, which employs two measurements to obtain two frequency shifts of the QCM sensor induced by two different volume of the sample liquid. The present invention creatively established the relationship between the density and viscosity of sample liquid and the frequency shifts of QCM sensor. With present invention, the density and viscosity of sample liquid can be obtained through two frequency shifts. Comparing to the conventional liquid property measurement. The measuring procedure of present invention are more simple, and the measuring results are more accurate. Moreover, the present invention consumes less volume of sample liquid, and has the features such as online, real time and quantitative.

The invention relates to a method and a device for indirectly measuring the leaking amount of a fire extinguishing agent in a low-pressure carbon dioxide fire extinguishing system, wherein the method and the device are used for judging the heat preservation and insulation effects in an indirect way. The method is favorable for overcoming the disadvantages of difficulty in hanging and transporting, low measurement precision and the like in the traditional direct weighing method. A collection container which is used for collecting the leaked carbon dioxide fire extinguishing agent and has a sealing performance is connected with a safety valve outlet of the low-pressure carbon dioxide fire extinguishing system; and the masses of the collection container and connection accessories of the collection container before the test and after the test are respectively measured and the difference of the masses of the collection container and the connection accessories of the collection container intwo times of weighing is the leaking amount of the fire extinguishing agent in the low-pressure carbon dioxide fire extinguishing system. According to the method and the device provided by the invention, a device and procedures for measuring the leaking amount of the fire extinguishing agent in the low-pressure carbon dioxide fire extinguishing system are simplified, the error of test results is small and the measurement precision is improved. Meanwhile, the installation, detachment and transportation of all the members are convenient, the operation is simple and easy, and the precision of a weighing device is high.

The invention belongs to aviation detection technologies, and relates to a detection circuit for a helicopter alternating current power supply system. The detection circuit is characterized by being composed of a first relay JA, a second relay JB, a first fixed resistor R1, a second fixed resistor R2, an ammeter A, a voltmeter V, diodes P1 and P2, a first reset button switch M1, a second reset button switch M2, a first double-pole double-throw switch K1, a second double-pole double-throw switch K2, a first single-pole single-throw switch K3 and an indicator lamp L1. According to the detection circuit for the helicopter alternating current power supply system, potential safety hazards in the measurement process are eliminated; loading measurement is achieved, and the accuracy of test results is improved; the measurement process is simplified, the measurement period is shortened, and the measurement efficiency is improved.

The invention discloses an ear thermometer with self-adjustment and accurate temperature measurement functions, which comprises a thermometer body and a thermometer head, wherein the thermometer headis slidably connected with the thermometer body, the thermometer head can rotate and detect in the ear at multiple angles, and the angle of view of detection greatly exceeds that of a thermometer headof the traditional ear thermometer. Users need not to adjust the position of the thermometer head, and the ear thermometer can perform self-adjustment and carry out large-scale measurement in the earand finally obtains an accurate eardrum temperature, so that the operation steps and operation difficult of using the ear thermometer by a user to obtain an accurate eardrum temperature are greatly reduced. Operation training is not required, so that ordinary families can use the ear thermometer simply and conveniently to obtain the accurate eardrum temperature. Meanwhile, the ear thermometer further comprises an electronic ear temperature case system which are permanently record the ear temperature of a user and form an electronic ear temperature case for the user to understand health conditions thereof. The user can also send the electronic ear temperature case to the medical care personnel to check so as to get help from the medical care personnel.

The invention discloses a heat exchange fin key parameter detection system. The system comprises an outer contour coordinate measuring device and a key parameter analysis and calculation platform; theouter contour coordinate measuring device comprises a contour sensor and a measuring platform, wherein the contour sensor is used for measuring the outer contour coordinate data of a heat exchange fin to be measured; the measuring platform comprises a working table and a fixing device for fixing the contour sensor; the heat exchange fin to be measured is fixed on the working table; the contour sensor is arranged just above the heat exchange fin to be measured through the fixing device; the contour sensor measures the outer contour coordinate data of the heat exchange fin to be measured and outputs the outer contour coordinate data to the key parameter analysis and calculation platform; and the key parameter analysis and calculation platform is used for generating the key parameter data output of the heat exchange fin to be measured according to the received outer contour coordinate data. The invention also discloses a heat exchange fin key parameter measurement method. With the heat exchange fin key parameter detection system and measurement method of the invention adopted, non-destructive measurement and rapid measurement are realized, operation is simple and fast, and results are accurate.

The invention relates to a refractometer and to a refractive index measuring method. The invention directs an incident light ray onto an interface of a medium of known refractive index and of the medium studied, then measuring the intensity of the reflected light ray. The ratio between the intensity of the incident ray and the intensity of the reflected ray allows the refractive index of the medium studied to be calculated by means of Fresnel's formulas.

The invention discloses an observation well liquid level test method of coal seam in-situ key parameters. The test method comprises the steps of: setting at least one observation well around a coal seam gas well according to the geological data of the coal seam gas well and obtaining basic data of the observation well; testing the liquid level of the observation well by using an optic fiber liquid level detection instrument to obtain liquid level data of the observation well at different points of time; converting the obtained liquid level data and the basic data of the observation well into bottom-hole pressure data of the observation well through computation; analyzing the bottom-hole pressure data to obtain the pressure distribution around the coal seam gas well; and obtaining the reservoir stratum parameters of working coal seams of the coal seam gas well according to the change of the bottom-hole pressure of the observation well along with the time. The test method provided by the invention is simple; the liquid level data and the basic data of the observation well can be converted into bottom-hole pressure through computation as long as being obtained; and the test cost is low.