60results about How to "Simplify the measurement procedure" patented technology

A biological data observation apparatus includes a measuring unit including at least a photoelectric sensor including a light emitting element for emitting light with a predetermined wavelength onto a blood vessel of a subject and a light detecting element for detecting, as a photoelectric volume pulse wave, a change in an amount of transmitted or reflected light resulting from the light emitted from the light emitting section, a storage area in which pressure conversion data correlating a pulse wave area and a blood pressure value in order that the pulse wave area may be converted to the blood pressure value as an absolute value, the pulse wave area being obtained by integrating a wave form of the photoelectric capacity pulse wave per heartbeat, an operational unit calculating the pulse wave area on the basis of the photoelectric volume pulse wave obtained from the subject and further calculating the blood pressure value of the subject on the basis of the calculated pulse wave area and the blood pressure conversion data, and a display unit displaying a result of calculation performed by the operational unit.

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=2Cc+2Cf+Ca). In the second step, two other test structures are used to measure a dummy configuration in order to obtain the area and fringe capacitance Cdummy of the metal line with respect to ground including fringe and area components (Cdummy=2Cf+Ca). After the two steps, the coupling capacitance Cc between the metal line and another line can be determined according to the formula Cc=(C-Cdummy) / 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 device for acquiring depth image, a calibrating method and a measuring method therefore are provided. The device includes at least one projecting device, at least one image sensing device, a mechanism device and a processing unit. The projecting device projects a projection pattern to a measured object. The image sensing device is controlled to adjust a focal length and focus position, and therefore sense real images. The mechanism device adjusts a location and / or a convergence angle of the image sensing device. The processing unit calibrates the at least one image sensing device and generates a three dimension (3D) measuring parameter set at a model focal length according to a plurality of image setting parameter reference sets corresponding to a model focal length and a plurality of default node distances, respectively, and then estimates a depth map or depth information of the measured object.

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 a device for measuring resistivity and seebeck coefficient and a usage method. The technical scheme is characterized in that: the device consists of an elevation system, a horizontal movement system and a measurement system. A hot end electrode (12) and a cold end electrode (24) are respectively fixed on one end of a horizontal rod (9); the other end of the horizontal rod (9) is connected to a vertical screw rod (7) through a screw nut type sliding block; during the measurement, the clamping electrode (13) horizontally moves a test sample (36) to a position right under the hot end telescopic electric level probe (29) and a cold end telescopic electric level probe (30) through the two sliding blocks which are perpendicular to each other in two moving directions; the voltage, the current and the temperature of various areas to be detected can be read through a high precision digital voltage gauge (34), a high precision digital current gauge (38), a first temperature gauge (35) and a second temperature gauge (37); and the corresponding resistivity and the seebeck coefficient are obtained through calculation. The invention can realize the direct measurement of the resistivity and the seebeck coefficient of the cuboid sample and the circular column sample in various areas, and the measurement accuracy is high.

The invention provides a roadbed detecting device for roads. The device comprises a main chassis; a computer display screen is fixed on the main chassis; a first rail is fixed on the left side of the main chassis; a first CCD sensor is slidingly mounted on the first rail; a second rail is fixed on the right side of the main chassis; a second CCD sensor is slidingly mounted on the second rail; the top end of the main chassis is connected with a rail module of an infrared emitter through a support rod; the rail module comprises a third rail and a fourth rail; a first infrared emitter is slidingly mounted on the third rail; a second infrared emitter is slidingly mounted on the fourth rail; signals emitted by the two infrared emitters can be received through a signal receiver and sent to the two CCD sensors; and the signal receiver is rotationally mounted on a fixed column. Compared with traditional roadbed detecting equipment, the device is more precise in detection, high in practicability and suitable for popularization and application.

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 put forward an improved method for isotope dilution analysis of strontium using mass spectrometer. The sample of strontium is measured by a multi-collector mass spectrometer which equipped with no less than five collectors. The isotopes of strontium are statically collected by the collectors: ion beams with different mass numbers will be collected by different collectors. The voltages of the outputs of the collectors are read and amplified by a dynamic virtual amplifier. Then equations which include some variables and the output voltages of every amplifiers are established. The solutions of the equations will be the isotope ratios of the sample being measured. The invention can combine two analyses, one for isotope ratio and the other for concentration of strontium, together into one so that the measurement procedure is simplified.

The invention discloses a semiconductor carrier type judgment and band gap measurement method. A Kelvin probe method is used to measure a work function of an extrinsic semiconductor material at different temperatures, the change law of a Fermi level of the material along with temperature is determined, and the carrier type is judged; and on the basis, in combination of the relationship of the extrinsic semiconductor material work function along with temperature changes, the change relationship between the Fermi level caused by electron thermal excitation and the relative position of a conduction band and a valence band is analyzed, and the band gap is solved. The measurement method disclosed in the invention is based on a semiconductor energy band theory, compared with the conventional optical band gap measurement method, the method of the invention can measure the band gap of a non-transmissive semiconductor material while the accuracy is greatly improved.

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.

A power input efficiency measurement method includes: providing a power source to supply to a power input system that has a power converter; measuring a current at a primary side of the power converter; measuring a voltage at the primary side of the power converter; and calculating the primary-side current and the primary-side voltage to obtain power efficiency of the power input system. In a preferred embodiment, a current transformer unit is applied to measure the primary-side current while a negative-voltage conversion circuit is applied to measure the primary-side voltage.

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.

A coordinate measuring machine comprising an optical sensor for optically capturing a workpiece; an illumination device for illuminating the workpiece; a pose determination unit for determining data relating to a workpiece pose including a position and orientation of the workpiece; a storage unit for storing (i) data relating to a reference pose including a position and orientation of a reference workpiece, and (ii) data relating to a reference light setting of the illumination device used for a measurement of the reference workpiece; and a control unit which is configured to control a light setting of the illumination device for a measurement of the workpiece by adapting the reference light setting based on a comparison of the stored data relating to the reference pose with the determined data relating to the workpiece pose.