206 results about "Index test" patented technology

A total hemoglobin index system derives total hemoglobin (tHb) index value utilizing a depopulated emitter with an index set of LEDs. A patient fails a tHb index test if tHb measurements are trending down and / or tHb values fall below a predefined index threshold. If a patient fails the tHb index test, a high resolution sensor derives a specific tHb measurement utilizing a high resolution set of LEDs. The number of high resolution set LEDs is greater than the number of index set LEDs.

The invention discloses a test method and a device for wireless indexes of an active antenna system. An over the air (OTA) test is used for testing spatial characters of the active antenna system and a near field coupling mode is used for testing radio frequency indexes of the active antenna system. The invention also provides a near field coupling test device which is a radio frequency testing cover. By the aid of the near field coupling test device, the radio frequency index test can be conducted to the active antenna system which is an integral device of an antenna and a multi-channel transceiver under the condition that any extra test interfaces are not required to be added. According to the comprehensive test method, the advantages of the OTA test and the near field coupling mode are combined fully, the defects and the problems of the OTA test and the near field coupling mode are overcome, and the test efficiency and the test cost are optimized.

The invention discloses a method and a device for testing a radio frequency index and a wireless index of an active antenna system. A probe-type test hood based on a near field coupling mode is adopted to test the radio frequency index of the tested active antenna system. The method comprises test hood single body calibration, test hood environment calibration, radio frequency index test, putting the tested active antenna system into the test hood, wherein the test environment is the same as the calibration environment, and carrying out radio frequency test on the tested active antenna system through a radio frequency port of a test probe after compensating the test environment according to the calibrated calibration result. The invention provides the comprehensive testing method at the same time. A space radio frequency (OTA) test is respectively adopted to test spatial characteristic of the active antenna system; and the near field coupling mode is adopted to test the radio frequency index of the active antenna system. The advantages of two testing methods are fully combined, and the defects and problems of the two testing methods are overcome and solved, thereby optimizing the test efficiency and the test cost.

The invention discloses a system for evaluating the performance of a chip through the collaboration of multiple processors. The system comprises an open short circuit detection module, a USB communication processing module, a PMU control module, a signal scanning module, a voltage control module, a frequency measurement module, a test index evaluating module and an expansion measurement module. The performance indexes and the parameters of multiple chips are controlled to be tested and evaluated on the research and design stage, PC controlled software is taken as a man-machine interface, multiple types of index tests are integrated on one system through synchronous testing to test and evaluate the chip, and the testing efficiency is greatly improved.

The invention relates to a system and a method for a real-time high-dynamic navigation signal simulator. The system comprises a satellite navigation message generating module, a real-time simulating control module, an observation data generating module, a navigation signal processing module, an intermediate-frequency signal generating module and an up-conversion module. The system provided by theinvention can be used for solving the problem of generating a track real-time navigation signal for an external user, meet the developing demands of real-time closed-loop simulation and navigation half-physical simulation, and support an index test of a flight control system.

The invention discloses an automatic test system and a method thereof, which are operated on a computer terminal and used for testing communication equipment through a tooling plate and a meter, wherein the system comprises a test parameter configuration module for configuring test parameters required by test, a meter calibration module for calibrating the meter to obtain a meter calibration result, a dynamic execution control module for setting working states and working modes of the communication equipment through communication with the tooling plate and controlling the meter at a normal working state according to the test parameters, and a meter test module connected with the dynamic execution control module for testing indexes of the communication equipment through the state of the control meter when the meter works in the normal working state, and returning an index test result to the dynamic execution control module for processing. The system and the method achieve efficient and automatic test for large-scale communication products of a production line.

A synthetic polyisoprene latex emulsion has pre-vulcanization composition and post vulcanization composition. The pre-vulcanization composition comprises soluble sulfur with high S8 ring structure that is catalytically broken by a zinc dithiocarbamate. Surfactants present in the pre-vulcanization composition wets synthetic polyisoprene particles and permeates small sized sulfur and accelerator molecules into the interior of these particles thereby pre-vulcanizing the particles. The degree of pre-vulcanization is verified by isopropanol index test. The latex emulsion has post-vulcanization composition with accelerators that crosslink inter-particle region during post vulcanization cure cycle. The dipped synthetic polyisoprene article is substantially uniformly cured both in the inter-particle and intra-particle regions and reliably exhibits high cross link density, uniform distribution of double bonds in TEM and zinc segregation at the boundaries or original particles by electron microprobe analysis. The films exhibit high tensile strength, tensile modulus, tear strength, burst pressure and burst volume.

The invention relates to a bolt looseness detecting device of a pantograph type current collector under travel of a high-speed train. The device provided by the invention comprises a sensor module, a data gathering and storing module, a wireless network transmission module, a data processing module, and the like. The sensor module is a capacitance angular displacement sensor and is separately designed for dynamic monitoring of a lower bolt of the pantograph type current collector; the data gathering and storing module utilizes an A / D (analog-to-digital) converter chip to gather multiple access signals, stores data in real time and then sends the data to the wireless network transmission module at the rear end; the wireless network transmission module is constructed by the Zigbee network and is used for sending angular displacement detection data from the outer part of the train to the inner part of the train; and the data processing module is used for analyzing and processing bolt looseness angular displacement index test data, compares and analyzes received data and built-in standard data and displays the bolt looseness state.

The invention provides a test system for a radio frequency index. The test system comprises a multiplexer, a RRU (Radio Remote Unit), a tester and a signal source, wherein a common port of the multiplexer is connected with an antenna port of the RRU; one or more band-pass filter ports in the multiplexer are connected with the tester through a first attenuator and is used for testing a radio frequency index of a downlink signal; a first output port of the signal source is directly connected with a first band-rejection filter port in the multiplexer and is used for outputting an uplink interference signal; and a second output port of the signal source is connected with a second band-rejection filter port in the multiplexer through a second attenuator and is used for outputting an uplink useful signal and testing the radio frequency index of the uplink signal. By adopting the test system for the radio frequency index, the simultaneous test for uplink and downlink indexes is realized, the block index test is performed under TX rated power, the influence of test environment on the RRU performance is eliminated, and the test efficiency is increased.

A method for synthesizing voice includes disconnecting navigation statement to be multiple voice format road information before a navigation statement is played, using a preset key word to index test format road information in basic databank then analyzing indexed test format road information to obtain its corresponding voice format road information, finally recombining voice format road information relating to navigation statement and using word section as unit then carrying out voice broadcasting. The GPS voice navigation system of synthesizing device used for realizing said method is also disclosed.

The invention discloses a checking system and checking method of an unmanned gyroplane PAPI (precision approach path indicator). The system comprises an unmanned gyroplane carrier and a ground station, wherein the unmanned gyroplane carrier comprises an unmanned gyroplane body and a flight controller, a positioning computer, a laser sensor, a GPS module, a data transmission module, a three-axis stability increasing cradle head, a forward-looking camera, a picture transmission module and a down-looking camera which are mounted on a fuselage; the ground station comprises a ground monitor station, a picture transmission base station and a data transmission base station. The checking system and the checking method have the following benefits: characteristics of high automation and autonomy are achieved, the approach process of a true unmanned aerial vehicle can be simulated, and a PAPI light can be detected; the expense is reduced, and the measuring accuracy is quite high; the requirements of various index tests of civil aviation airport PAPI light checking can be met, the traditional operating type namely flight checking can be replaced, a large amount of expense and labor consumption can be saved for the airport, the periodic requirement of PAPI light detection can be met, the accuracy of PAPI light indication is guaranteed, and the potential safety hazards of flight are reduced.

The present invention provides a system for testing the dynamic accuracy index of laser equipment at a distance, which is characterized in that the short-distance dynamic accuracy index test subsystem moves the measured laser The six-degree-of-freedom motion simulation of the equipment relative to the cooperative target in space is used to measure and calibrate the laser equipment under test; the long-distance dynamic accuracy index test subsystem includes the equipment vehicle, the target vehicle and two sets of vehicle-mounted differential GPS systems. A set of GPS receivers constitutes a double differential GPS system, which measures the relative distance between the equipment vehicle and the target vehicle in real time with high precision; the two-dimensional turntable installed on the roof of the equipment vehicle dynamically simulates the movement of the measured laser equipment relative to the cooperative target in space , so that the six-degree-of-freedom movement of the laser device under test relative to the cooperative target is simulated in space, and the laser device under test is measured and calibrated. The invention can solve the problem that the dynamic accuracy index of the laser equipment cannot be tested under the conditions of high speed and large dynamic distance range.

The invention relates to an index test method for WLAN equipment, which comprises the following steps: a radio frequency test loop is formed; a wireless link is established; a network test software is respectively installed on a server and a client side; the control terminal of the network test software is operated at the server and the client side, so as to configure the network test software; test data flow is generated between the response terminals of the software, and the test data flow is transmitted or received through the WLAN equipment; the WLAN equipment can obtain a radio frequencyindex from the radio frequency test equipment when in operation; and a network transmission index of the WLAN is obtained at the control terminal of a local network test software. The invention also relates to a system for realizing the method. The invention has the advantages that: the test method can test other network indexes simultaneously and is applicable for the WLAN equipments widely.

A synthetic polyisoprene latex emulsion has pre-vulcanization composition and post vulcanization composition. The pre-vulcanization composition comprises soluble sulfur with high S8 ring structure that is catalytically broken by a zinc dithiocarbamate. Surfactants present in the pre-vulcanization composition wets synthetic polyisoprene particles and permeates small sized sulfur and accelerator molecules into the interior of these particles thereby pre-vulcanizing the particles. The degree of pre-vulcanization is verified by isopropanol index test. The latex emulsion has post-vulcanization composition with accelerators that crosslink inter-particle region during post vulcanization cure cycle. The dipped synthetic polyisoprene article is substantially uniformly cured both in the inter-particle and intra-particle regions and reliably exhibits high cross link density, uniform distribution of double bonds in TEM and zinc segregation at the boundaries or original particles by electron microprobe analysis. The films exhibit high tensile strength, tensile modulus, tear strength, burst pressure and burst volume.

The invention discloses a preparation method of a high-performance warm-mix regenerated asphalt mixture, which comprises the following steps: extracting and screening an old asphalt mixture, determining the size distribution and asphalt content of the mixture, carrying out three-main-index testing on the asphalt, and evaluating old asphalt performance indexes in RAP; determining the doping proportion of the RAP according to the performance indexes of the asphalt in the RAP, wherein the doping proportion is generally 50-100%, and the doping proportion can be higher as the performance indexes of the asphalt in the RAP are higher; determining the optimal doped new asphalt consumption (OACn) of the asphalt mixture by a conventional asphalt mixture Marshall five-point process; and after calculating the doped new asphalt consumption, detecting according to according to the performance indexes specified in Asphalt Pavement Construction Technique Specifications (JTGF40-2004) by a testing method specified in Highway Engineering Asphalt and Asphalt Mixture Test Specifications (JTGE20-2011).

The invention relates to a preparation method of coupling phenolic resin used for a drilling fluid, and the method comprises the following steps: successively adding 100 parts of phenol and 60 parts to 200 parts of formaldehyde according to mass ratio into a reaction vessel with a backflow cooler of a mixer, heating to 80 - 100 DEG C, stirring and reacting for 30 - 50 minutes under the effect of 1 - 3 parts of A type catalyst, then adding 10 parts - 20 parts of B type catalyst and 150 parts - 200 parts of sulfonate to heat at the temperature range of 90 DEG C - 105 DEG C to react for 1 - 2 hours, then adding 50 - 100 parts of aminosilane coupling type high-molecular polymer, and reheating to the temperature range of 90 DEG C - 105 DEG C for continuing the reaction for 2 - 4 hours, and then discharging the material to obtain coupling phenolic resin. According to the invention, when coupling phenolic resin is taken as a fluid loss agent with heat and salinity tolerance used for the drilling fluid, the high-temperature high-pressure filtration loss is reduced by 8 - 15%, the cloud point salinity is raised by 10 - 20% than that of common sulfonation phenolic resin on the key index tests, and the quality of the filter cake is raised so that the filter cake is thin and dense.

The invention provides a method and a system for implementing automatic test of indexes of an optical module. The method comprises the following steps of: according to a predetermined test program, adjusting optical power of a service optical signal output by the optical module to be tested; and monitoring the optical power of the service optical signal received by the optical module to be tested and the corresponding index reference values in real time, and testing the corresponding indexes of the optical module to be tested according to the optical power of the service optical signal received by the optical module to be tested and the corresponding index reference values. Compared with the prior art, the method and the system make automation progress in the index test process of the optical module, save the test time, and improve the index test accuracy of the optical module.

The invention provides a power distribution automation equipment test comprehensive evaluation method and system, and the method comprises the steps: building a comprehensive evaluation index model based on an evaluated object; obtaining each evaluation index test value, corresponding to the comprehensive evaluation index model, of the evaluated object; substituting the evaluation index values into the comprehensive evaluation index model, and calculating a comprehensive scoring result of the evaluated object based on the weights and scoring standards of the evaluation indexes in the comprehensive evaluation index model. In the technical scheme, a comprehensive evaluation index model is established to formulate a scoring standard for each index in the power distribution automation equipment test, evaluation is carried out according to the weight of the indexes, the method is more scientific, objective and comprehensive, the practicability is very high, and technical support is providedfor power companies to carry out bidding purchasing, equipment type selection and quality control of the power distribution automation equipment.

The invention discloses test method and system of a mobile terminal. The method comprises the steps of: executing a receiver RX test on a first mobile terminal and executing a transmitter TX test on a second mobile terminal by the test system in a same time slot, wherein the RX test comprises a calibration test of a receiving circuit and a receiving index test; and the TX test comprises a calibration test of a transmission circuit and a transmission index test. By adopting the invention, the utilization efficiency of instruments can be improved, and the test cost can be reduced.

Fibrous structures, for example sanitary tissue products, containing a plurality of filaments that employ one or more filament-forming materials, such as one or more hydroxyl polymers, and one or more hueing agents, present within the filaments such that the fibrous structures exhibit a Whiteness Index of greater than 72 as measured according to the Whiteness Index Test Method described herein.

An absorbent article having a wearer-facing side and garment-facing side, the article comprising: —a nonwoven topsheet on the wearer-facing side, wherein the topsheet has a first color which is not white and comprises thermal bonds; a backsheet on the garment facing-side; an absorbent core between the topsheet and the backsheet; optionally an acquisition layer; and a visual signal disposed on the topsheet or a layer of the article under the topsheet; wherein the visual signal comprises a first portion having a first appearance and a second portion having a different second appearance. The topsheet has an opacity index of at least 28% as measured by the opacity index test as described herein and the visual signal is visible on the wearer-facing side of the article.

The invention discloses a radio frequency link switching device for mobile communication terminal testing. The radio frequency link switching device is characterized by comprising a main processing unit; the main processing unit comprises a test set output interface, a test set input interface and a tested equipment interface; the test set output interface and the test set input interface are connected with the tested equipment interface through a coaxial switch, an attenuator and a circulator; a link between the test set output interface and the tested equipment interface is used for compensating instrument downlink signals; a link between the test set input interface and the tested equipment interface is used for compensating terminal uplink signals. Index test links of all types of approval terminals are systematically integrated, automatic setup of test links and automatic measurement are achieved, and damage of instruments caused by superheated radio frequency power, instantaneous direct current and ESD (electrostatic discharge) is protected.

The invention provides a simulated climate chamber of an underground coal mine thermal environment and a test method. The simulated climate chamber is provided with a control cabinet, a first computer, a temperature-humidity system, a fresh air system, a simulated air system, a human body micro-climate acquisition system, an alarm system, and a human body physiological index test system. The simulated climate chamber comprises an experiment preparation room, a test room, and an equipment room. The test method of the simulated climate chamber consists of four steps. Through the simulated climate chamber, personal protection cooling suits for mine and protective properties of the cooling suits can be subjectively and objectively evaluated. Through the simulated climate chamber, the underground coal mine thermal and humid environment can be relatively really simulated; comparatively accurate data is provided; and environment uncontrollability during a live environment test is avoided. The simulated climate chamber and the test method can meet practical operational needs.

A vehicle end, an information processing system, and a vehicle end radio uninterrupted play method are provided. The vehicle end radio uninterrupted play method comprises monitoring radio signals of a current radio station in a local radio station of a current location of the vehicle end and performing in index test, and obtaining a test value. When the test value is smaller than a standard critical value, the test value indicates that the radio signal of a current radio station is interrupted or weak, and at this time, a prompt instruction for starting a network radio station is sent, and a network radio station model is started based on user selection; a network radio station acquisition request which includes acquiring a request of network radio station information corresponding to the current radio station is sent to a cloud end server; and based on the network radio station information which is corresponding to the current radio station and issued by the cloud end server, network broadcasting information of the network radio station corresponding to the current radio station is acquired, and thus broadcast information of the current radio station can be continuously received, continuous listening to the current radio station by the user is guaranteed, and client experience at the vehicle end is accordingly improved.

The present invention relates to an automatic test method and system aiming at TDSCDMA integrated module of digital interface. The test method comprises the following stesp: a. a host computer controls TDSCDMA signal source and a frequency spectrograph through GPIB bus; b. the host computer controls the TDSCDMA integrated module and a radio-frequency matrix switch through 485 bus; c. the host computer finishes the main radio-frequency index test of the TDSCDMA integrated module according to the text process; the host computer adjusts the best parameter of the TDSCDMA integrated module according to the test condition. By utilizing the automatic test method of the invention instead of the fussy manual test, the producing test time of the TDSCDMA integrated module is shortened, while productivity and efficiency of the enterprise are improved. The test result will not be affected by human factors with steady quality.

The invention discloses a tester for a workability index of a bituminous mixture. The tester comprises a charging basket, a mixing shaft and a torque wrench, wherein a barrel cover is arranged on the top of the charging basket; a feeding hole is formed in the barrel cover; the mixing shaft is rotationally connected with the barrel cover through a bearing; the upper end of the mixing shaft is connected with the torque wrench through a conversion joint; the lower end of the mixing shaft penetrates through the barrel cover and stretches into the charging basket; a mixing blade is arranged at the lower end of the mixing shaft; the torque wrench is a digital display type torque wrench or a pointer type torque wrench. The invention also discloses a method for testing the workability index of the bituminous mixture by utilizing the tester. The method comprises the following steps: 1, adding the bituminous mixture into the charging basket; 2, calibrating the torque wrench; 3, rotating the torque wrench to obtain a torque value; and 4, calculating to obtain the workability index of the bituminous mixture by utilizing the torque value. The tester is novel and reasonable in design, wide in application range, good in using effect, high in actionability and convenient to popularize.

The invention relates to an evaluation and test method for the short term collision alert in an air traffic control automation system. The method comprises the following steps: defining the function evaluation indexes of the short term collision alert such as an alert delay time, a missed alert rate, a false alert rate and an improper alert rate; seeing the calculation formula of the improper alert rate on the upper right, wherein Inapp is set as the number of alerts which are reported by a short term collision alert functional function in the automation system and are determined redundant or improper by a controller within unit time, and Alert is set as the number of alerts which are reported by the short term collision alert functional function in the automation system and are determined correct by the controller within unit time; and in the test and evaluation period, selecting 24 hours or other proper intervals as the unit time. The method adds the evaluation index of 'improper alert rate' based on the prior evaluation method, thereby avoiding the situation that the prior index test system reports a large number of non-true alerts in the practical work and consequently influences the work of the controller.

The invention discloses a high-coverage automatic radio frequency index test device. By using the device provided by the invention, quick tests with high coverage can be performed on multi-channel radio frequency indexes of various types of equipment under test. The device provided by the invention is implemented via the technical scheme as follows: an input radio frequency interconnection matrixmodule receives multiple signal sources, a noise source and an output signal of a vector network, and provides source signals such as a microwave vector signal source, the noise source and the vectornetwork output signal to the equipment under test; the equipment under test receives a low-phase noise local oscillator signal and a reference clock signal from a multi-channel local oscillator sourcemodule; the equipment under test completes automatic switching of multiple channels via an output radio frequency interconnection matrix module, and transmits a test signal to an universal measurement instrument; an industrial control computer calls control parameters of the universal measurement instrument and the equipment under test to complete automatic test of the multiple indexes, reads a test result of the universal measurement instrument and automatically generates a test report in a standard format; the artificial configuration test and automatic test on the main indexes of the equipment under test are achieved by using a visual manual control interface.

The invention relates to a mobile terminal radiation continuous harassment index testing method and the system thereof. The system includes a shielding room 21, an integrated tester 31, a spectrum analyzer 51, and a small electromagnetic wave receiving probe 52. The method includes the steps of testing the shielding interference in the shielding room 21; setting up the communication between the integrated tester and the mobile terminal, and dictating the mobile terminal to transmit at the maximum power; using the spectrum analyzer and the connected small receiving probe 52 to scan the radiation continuous harassment energy collected by the mobile terminal; calculating the energy level margins among all the harassment frequency points and a main transmitting frequency point, and determining a threshold according to an index test, judging whether the index requirement is met referring to the tolerance. The method and the system thereof use the shielding room to replace the microwave no-reflection darkroom, uses the near-field / far-field conversion relationship to make the simulation test ready and provide circumstance for a product before the real radiation continuous harassment test. The invention can save cost, provide convenience, and shorten development period.