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49results about How to "Consistent measurement" patented technology

Nodal dynamic data acquisition and dissemination

Apparatus is provided having a signal processor configured to: respond to stimuli caused by a vibrating machine or structure and capture a sampled data set containing information about the stimuli, including where the stimuli include at least vibration of the vibrating machine or structure; and determine wireless signaling containing a pre-selected subset of information from the sampled data set that can be provided as relevant data that includes a relevant data package / sample, the size of the relevant data package / sample, and computations upon the relevant data package / sample, based upon implementing a data interpretation algorithm that uses a wireless communication capacity or protocol for communication. The apparatus may include a data collector or sensor having the signal processor arranged therein and configured for coupling to the vibrating machine or structure to be monitored.
Owner:ITT MFG ENTERPRISES LLC

Fetal monitoring

A system for monitoring a fetus during gestation comprises an input for receiving a plurality of electric signals measured on a surface of a maternal body; and means for providing a fetal electrocardiogram based on the received electric signals and based on an orientation of the fetus, wherein the fetal electrocardiogram represents a projection of a fetal cardiac potential vector according to a predetermined projection direction that is fixed with respect to the fetus. The fetal vector electrocardiogram is projected according to the projection direction. An at least partial representation of a fetal vector electrocardiogram is provided in dependence on the plurality of electric signals and indicative of a time path of an electrical field vector generated by a fetal heart of the fetus.
Owner:NEMO HEALTHCARE

Calibration-free continuous bin level sensor

A sensor assembly is described herein that can automatically calibrate itself upon installation into an empty bin, eliminating the need to actually fill the bin to calibrate the level reading. The sensor will provide consistent measurement regardless of material properties (permittivity, density, temperature or moisture content). The capacitive nature of the sensor means that in some circumstances, it will sense the material through plastic / glass / fiber glass thereby allowing the sensor assembly to be mountable on the outside of a bin or container. The electrodes of the sensor system are designed to provide a continuous level reading.
Owner:DICKEY JOHN CORP

Synchronous acquisition device and method of atom and molecular spectrum

The invention discloses a synchronous acquisition device and method of an atom and molecular spectrum. The method comprises the following steps: striking the surface of a to-be-detected sample repeatedly by focused energy of a laser device, stimulating the to-be-detected sample to be at a plasma state, and collecting an atom spectrum transmitted by the to-be-detected sample at the plasma state by an optical fiber collector via a visible spectrograph; striking the surface of the to-be-detected sample repeatedly by the focused energy of the laser device, and collecting an infrared spectrum transmitted externally by the surface of the to-be-detected sample by an infrared optical fiber collector via the visible spectrograph so as to obtain a molecule spectrum; transmitting the molecular spectrum to a signal collecting control system by the atom spectrum and the infrared spectrograph via the visible spectrograph; and matching the atom spectrum and the molecular spectrum by the signal collecting control system so as to obtain the corresponding relationship between the atom spectral line and a functional group. The method can be used for obtaining the molecule and atom spectrum with the same size synchronously within a short time, and achieving the correlation of the characteristic relation of the atom spectrum and the molecular spectrum.
Owner:北京市农林科学院智能装备技术研究中心

Apparatus and method for generating 3D avatar

Disclosed herein are an apparatus and method for generating a 3D avatar. The method, performed by the apparatus, includes performing a 3D scan of the body of a user using an image sensor and generating a 3D scan model using the result of the 3D scan of the body of the user, matching the 3D scan model and a previously stored template avatar, and generating a 3D avatar based on the result of matching the 3D scan model and the template avatar.
Owner:ELECTRONICS & TELECOMM RES INST

Measurement processing method and device

Each embodiment of the invention provides a measurement processing method, comprising the following steps that: measurement sampling data obtained by the measurement is processed by the internal filtration to obtain a measured value; the obtained measured value is processed by the time-frequency normalized filtration to obtain a measured result; and the measured result is evaluated. The embodiment of the invention also provides a measurement processing device. The measurement processing proposal solves the problem of the prior art that a system needs to process more measurement sampling data because the measured value is not processed by the filtration. The proposal obtains the final measured result by performing the time-frequency normalized filtration to the measured value obtained by the internal filtration, thereby ensuring that the measured result is more accurate and optimizing the network performance.
Owner:HUAWEI TECH CO LTD

Dual-purpose voltage divider based on standard capacitor

ActiveCN106405186AConsistent measurementThe field strength of the measured power frequency voltage is consistentTransmission systemsCurrent/voltage measurementStray inductanceLow voltage
The invention provides a dual-purpose voltage divider based on a standard capacitor. The dual-purpose voltage divider comprises a damping resistor, a high-voltage guide rod, a high-voltage electrode, a low-voltage electrode, a ground electrode and a shield electrode, wherein the high-voltage electrode, the low-voltage electrode, the ground electrode and the shield electrode are arranged coaxially in a metal ground cylinder. The low-voltage electrode, the ground electrode and the shield electrode are arranged on the outside of the high-voltage electrode successively. One end of the damping resistor is connected with a high-voltage lead and the other end of the damping resistor is connected with the high-voltage guide rod. The high-voltage guide rod is connected with the high-voltage electrode. Compared with the prior art, the dual-purpose voltage divider based on the standard capacitor uses a low-inductance structure, which reduces the stray inductance of a voltage divider circuit so as to accurately measure impact voltage and power frequency voltage.
Owner:CHINA ELECTRIC POWER RES INST +1

Vehicle occupant weight estimation apparatus

This invention describes an occupant size and weight detection device consisting of a combination of force / load sensors (1), a head position sensor (2, 3), a multidirectional acceleration sensor (5), and a seat position sensor (4) used to determine the weight of an occupant based on weight distribution, body angle and foot position. The goal of the invention is to determine the weight of an occupant who is sitting in the front seat of a vehicle that is subjected to the dynamic forces resulting from the vehicle moving. This technology can be used in applications such as automotive occupant weight and position sensing for use with safety devices such as airbags.
Owner:INTELLIGENT MECHANTRONIC SYST INC

Method and device for predicting the fertile phase of women

A method and device to predict ovulation in a female human by measuring changes in the concentration of a number of ions in eccrine sweat is disclosed. The concentration, or changes in concentration, of one or more ions are determined throughout the day and analyzed against predetermined patterns in order to predict ovulation one to five days in advance. This permits the user to more accurately determine commencement of the fertile phase, which for female humans is generally considered to be about four days prior to ovulation to one day after ovulation. The concentration of the ions measured include sodium (Na+), potassium (K+), ammonium (NH4+), calcium (Ca2+), chloride (Cl−) and nitrate (NO3−). To further increase the accuracy of the reading, a large number of readings can be obtained throughout a day and statistically analyzed to determine the change over time. In addition, the concentration of two or more ions can be obtained to increase accuracy. Ratiometric measurements between two or more ions can be determined to increase accuracy and account for ion accumulation on the skin. Ratiometric measurements between ammonium (NH4+) and calcium (Ca2+) have been found to provide more distinct patterns because the concentration of these two ions change in opposite directions during the relevant period preceding ovulation.
Owner:HEALTHWATCHSYST

Movable discharge electrode applied to capillary tube discharge soft X-ray lasers

InactiveCN103560393AAccurate measurementAccurate Laser Gain FactorWave amplification devicesPhysicsWave shape
The invention relates to a movable discharge electrode, in particular to a movable discharge electrode applied to capillary tube discharge soft X-ray lasers. The movable discharge electrode aims at solving the problem that in an existing method for changing gain media, current waveforms obtained under the condition of different gain medium lengths are not coincident with a main pulse current waveform, and the inherent thought that in the prior art, the length of a capillary tube is changed or the length of an electrode is changed is eliminated. An elastic steel wire is arranged on the electrode, the effect that the electrode can be fixed at any position in the capillary tube is achieved, and then the aim of changing the gain media is achieved. As when the electrode is fixed at any position in the capillary tube, the total length of a plasma column is the difference of the length of the capillary tube and the length of the electrode, it is guaranteed that the total length of the plasma column is kept unchanged, and then the effect that under the condition of different gain medium lengths, the pulse current waveforms same as the main pulse current waveform are obtained is achieved. The movable discharge electrode is suitable for a capillary tube discharge test.
Owner:HARBIN INST OF TECH

Method and system for accurately measuring bending strain of flexible electronic device

The invention belongs to the related technical field of flexible electronic testing, and discloses a method and a system for accurately measuring bending strain of a flexible electronic device, and the method comprises the following steps: (1), providing an ultrathin strain sensor; (2) pre-fixing the ultra-thin strain sensor on the flexible electronic device through glue, clamping the ultra-thin strain sensor and the flexible electronic device to extrude redundant glue, and then finishing fastening of the ultra-thin strain sensor after the glue is cured; (3) integrally connecting the ultrathinsensor and the flexible electronic device to a test device, and performing loading measurement to acquire multiple groups of experimental data; and (4) calculating the dependent variable of the ultrathin strain sensor in the buckling process according to the strain coefficient of the ultrathin strain sensor and the obtained experimental data, and then correcting the obtained dependent variable byadopting the modified positive coefficient, so as to obtain the real strain of the flexible electronic device to be measured. According to the invention, the measurement accuracy is improved, and theapplicability is good.
Owner:HUAZHONG UNIV OF SCI & TECH

Tool for detecting linear distance between inner hole annular groove and outer end face of gear

The invention discloses a tool for detecting the linear distance between an inner hole annular groove and an outer end face of a gear. The tool comprises a pipe plug, an inner axle sleeve, springs, a measuring sleeve, a cylindrical pin, an outer sleeve, a push rod, a gauge stand and a dial indicator. An end, provided with external thread, of the inner axle sleeve is connected with the outer sleeve and the gauge stand. An indicator rod of the dial indicator is inserted into an inner hole of the gauge stand. An inner hole of the measuring sleeve is in clearance fit with the inner axle sleeve. Annular bosses are arranged on the outer walls of the two ends of the measuring sleeve correspondingly. The annular boss stretching into an inner hole of a workpiece is a measuring end. The annular boss at the other end is connected with two handles stretching out radially. The cylindrical pin is stuffed radially into the tube wall in the middle section of the measuring sleeve. The push rod is placed and inserted into one inner hole of the inner axle sleeve. One spring is axially arranged between the push rod and the gauge stand. One spring is also axially arranged in an inner hole in the other end of the inner axle sleeve and is adjusted and locked in position through the pipe plug. The to-be-measured workpiece is stuffed into the detecting tool for measurement, direct measuring is good in promptness and high in precision, and the detecting tool is suitable for being used in fields of production.
Owner:JIANGSU PACIFIC PRECISION FORGING +1

Method for analyzing the oxygen concentration of a gas

A method for analyzing the oxygen concentration of a gas with an oxygen concentration analyzer of such a type that a probe sensor, when supplied with a gas to be analyzed, produces an electrical output which is proportional to the concentration of oxygen in the gas, comprising the steps of preparing a first gas mixture in which an oxygen-free gas and a sample gas are mixed at a certain flow ratio and a second gas mixture in which the oxygen-free gas and the sample gas are mixed at a different flow ratio than in the first gas mixture, passing the first gas mixture and the second gas mixture asynchronously into the probe sensor, and comparing the electrical outputs from the sensor for the first gas mixture and the second gas mixture, as well as the proportions of the flow of the sample gas in the first gas mixture and the second gas mixture to thereby calculate the oxygen concentration in the sample gas. The method eliminates the need to perform frequent zero adjustment and enables the oxygen concentration in the sample gas to be measured with consistent results.
Owner:OSAKA OXYGEN IND LTD

Filter device and method of manufacturing filter device

The invention discloses a filter device and a method of manufacturing the filter device. The filter device for a hearing test probe extends along a center axis in a first direction from a first end to a second end. The filter device comprises: a first part having a first filter structure, a second part having a second filter structure, a first channel extending along the center axis. The first part and second part are joined together, and the first filter structure and the second filter structure define a filter element with a first set of filter openings for the first channel.
Owner:NATUS MEDICAL

Constant power interface-based hybrid dynamic simulation method

The invention provides a constant power interface-based hybrid dynamic simulation method. The method includes the following steps that: a power system is divided into a plurality of subsystems; a time sequence of equal time intervals is obtained; the initial power flow of the subsystems is obtained; and the injection current of a boundary bus and the voltage simulation curve of the boundary bus are determined. According to the method of the invention, a constant power interface can guarantee the consistency of the switching power of a research power grid and an external power grid and a measured value in a whole simulation period, and therefore, a foundation can be laid for the practical application of the hybrid dynamic simulation method.
Owner:CHINA ELECTRIC POWER RES INST +2

Device and a method for the reversible mechanical fixing and electrical contacting of electric conductors

For a device for the reversible mechanical fixing and electrical contacting of one or more electrical conductors (11) of a cable (10) it is proposed to fix the cable (10) mechanically by means of a cable receptacle (2) and to position exposed conductor ends (12) of the electrical conductor (11) on a contact plate (3). A fixing element (4) is provided for pressing the exposed conductor ends (12) onto the contact plate (3). Such a device and such a method are needed for the temporary electronic contacting of one or more electrical conductors carried in a cable. Such contacting is above all necessary for carrying out electrical measurements on such cables.
Owner:HARTING ELECTRIC GMBH & CO KG

Method And Apparatus For Weighing An Elongate Object

Method and apparatus for weighing an elongate object extending between a root end and a tip end thereof, said method including: providing a respective tip load measurement gauge and root load measurement gauge; and providing a suspending arrangement configured for suspending said elongate object from said tip load measurement gauge and from said root load measurement gauge; and suspending said object in a horizontal orientation; and recording a tip load and a root load from respective said load measurement gauges, said method being additionally characterised by: providing a weighing area; and fixing an inclinometer to said suspended blade and load gauge arrangement; and suspending said elongate object from said tip load gauge and from said root load gauge; and adjusting the horizontality of said elongate object in response to signals from said inclinometer prior to said step of recording said tip load and said root load. Alternatively, an inclinometer may be replaced by placing a first distance sensor at a first location on a ground surface; and placing a second distance sensor at a second location on said ground surface; and suspending said elongate object from said tip load gauge and from said root load gauge such that a said root end thereof is suspended proximate said first distance sensor and a said tip end thereof is suspended proximate said second distance sensor; and measuring a first distance between said first distance sensor and a said root portion of said elongate object and; and measuring a second distance between said second distance sensor and a said tip portion of said elongate object; and then adjusting the horizontality of said elongate object in response to said first and second distance readings prior to said step of recording said tip load and said root load.
Owner:VESTAS WIND SYST AS

Portable magnetic metal fatigue detection method

The invention discloses a portable magnetic metal fatigue detection method. The method comprises the following steps of: 1, correction: placing a probe on the surface or the constant-height surface of the non-damage area of magnetic metal to be detected, adjusting the current I of an electromagnet coil, and correcting the output voltage of a Hall sensor; 2, detection: moving the probe along the surface of the magnetic metal to be detected or moving the probe along the constant-height surface of the surface of the magnetic metal to be detected, which is the same as the constant-height surface in the step 1, and by the relationship between the hall voltage UH and the magnetic conductivity of the magnetic metal to be detected, detecting the magnetic conductivity at each detecting position to obtain a micro r curve between the magnetic conductivity micro r and the detected position X or build a UH-X curve between the Hall voltage UH and the detected position; and 3, judgment: judging the position of an area where the micro-r-X curve or UH-X curve fluctuates wildly, which proves that the magnetic metal to be detected has fatigue damage at the position.
Owner:CHONGQING JIAOTONG UNIVERSITY +1

Metering system used in starch sugar production process

PendingCN114580000ASecure dataMake sure to communicateDigital data protectionDigital data authenticationData OriginProcess engineering
The invention provides a metering system used in a starch sugar production process. A weight acquisition module is used for acquiring the weight of raw materials in the production process; the component acquisition module is used for acquiring the weight of the added raw materials in the starch sugar preparation process; the starch sugar preparation data processing module is used for calling the weight of raw materials in the production process and calculating the quantity of the raw materials needing to be added according to the components of the starch sugar; the system realizes information acquisition and sharing, and the information is saved in a database for sharing after being acquired. The raw material feeding data comes from metering data generated by actual feeding and weighing, data modification from the source is avoided, and meanwhile input errors are avoided. The system realizes series connection of weighing and feeding services of the starch sugar preparation bin; and on-site raw material metering is consistent with preset data. The system can ensure the timely data communication among the processes through the PCS process charging actual performance table, avoids the traditional communication modes such as telephone communication among the processes, and greatly improves the working efficiency.
Owner:SHANDONG XIWANG SUGAR +1

Machining error detection method and device and machining method

The invention discloses a machining error detection method. The method comprises the following steps that a mark is pasted on the surface of a machined workpiece; continuously collecting images of thesurface of the machined workpiece pasted with the identifier at preset time intervals; and determining a processing error by determining the position change of the identifier in the two adjacent acquired images. According to the method, the mark is pasted on the surface of the machined workpiece, the image is collected, the machining error is determined by recognizing the position change of the mark in the image, and the machining error is dynamically detected online during machining, so that the measurement of the machining error is more consistent with the actual working condition, and themeasurement accuracy is improved. The invention further discloses a machining method and a machining error detection device.
Owner:WUHAN UNIV OF SCI & TECH
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