63results about How to "The test method is simple and fast" patented technology

The invention discloses a chair vertical impact test device and a test method. The test device comprises a test board, a mounting support, an impact part and a lifting mechanism, wherein the test board includes a base and a supporting seat fixed on the base, and the supporting seat bears a test seat. The mounting support comprises a left vertical column, a right vertical column and a beam which is arranged at the top end of the left and the right vertical columns. The left and the right vertical columns are fixed on the base. The impact part is lifted to the prearranged suspension height of the beam by the lifting mechanism in a first condition and is freely released to impact the part to be tested of the test chair in a second condition. By means of the test method, the impact part is repeatedly lifted to the prearranged height to drop freely and impact the part to be tested of the test chair. If the test chair deforms or is fractured within the prearranged impact times, the chair is determined to pass the test; otherwise, the chair fails the test. According to the test device and the test method, the impact part drops freely from the suspension state, accordingly an impact load vertical to the part to be tested of the test chair is imposed, and the strength of the test chair in a vertical direction can be tested after repeating a plurality of tests.

The invention relates to the technical field of battery evaluation, and discloses a rapid evaluation method for a retired power battery. The method comprises the steps that 1 a retired battery pack is placed on a test platform, and a charging and discharging device is used to measure the capacity of the retired battery pack; 2 power and the internal resistance are measured when the remaining power of the retired battery pack is 20%; 3 the retired battery pack is fully charged and stands for 1 week; and 4 the self-discharge rate of the retired battery pack is measured. The test time of the retired power battery is reduced from 1 to 2 months to approximately 1 week; the test switching time of evaluation parameters is significantly simplified; the state evaluation efficiency of the retired battery pack is greatly improved; and the acquired state evaluation parameters of the retired battery are greatly accurate.

The invention discloses a measurement method for the internal resistance of fuel cell, which is characterized by comprising: feeding hydrogen gas of 0.001 to 10L/min at two sides of a fuel cell MEA; after 10 to 20min, connecting a constant current source and a voltage meter; adjusting the current of the constant current source to 0.1 to 10A; after 4 to 10min, reading the voltage value V1 of the voltage meter; switching the current direction of the constant current source; after 4 to 10min, reading the voltage value V2 of the voltage meter; calculating an average value V=(V1+V2)/2; according to ohms law as R=U/I, calculating the internal resistance R of the membrane electrode. The measurement method has the advantages of simple application and accurate measurement result, belonging to the internal resistance test field of fuel cells.

The invention discloses a radio frequency test method for a 2M coaxial cable. The radio frequency test method for the 2M coaxial cable is characterized in that the anode of a light emitting diode is connected onto a core line of the 2M coaxial cable through a test terminal, and the cathode of the diode is connected onto a shielding layer of the 2M coaxial cable through a test terminal, and if the light emitting diode glows, the connected cable is the emitting end of a set of equipment, otherwise, the connected cable is the receiving end of the equipment. By adopting the radio frequency test method for the 2M coaxial cable in the test process of establishing a communication channel for digital signals, a working staff can accurately judge whether the connected cable is the emitting end or the receiving end of the equipment. The radio frequency test method for the 2M coaxial cable can enable the operating maintenance of the communication system to be simple and quick and greatly improve the work efficiency.

The invention relates to a high-speed network tester, which comprises a liquid crystal display (LCD), a storage, an X86 and an intelligent multi-core network card and is characterized in that an internet protocol security (IPSec) encrypting and decrypting coprocessor is arranged in the intelligent multi-core network card, the X86 is connected with the intelligent multi-core network card through a peripheral component interface express (PCIE) high-speed bus, the intelligent multi-core network card is respectively connected with the storage and the LCD, and the storage is further connected with the LCD. The invention further relates to a test method of the network tester, which includes the following steps of: initializing the intelligent multi-core network card, configuring parameters of the intelligent multi-core network card and generating configuration scripts, starting the test flow path, stopping or interrupting the test, analyzing test results and generating a test report. The network tester combines the intelligent multi-core network card and the X86, is compatible with the IPSec encrypting and decrypting coprocessor, is low in cost, strong in processing performance, fast and flexible in operation, simultaneously combines LED touch screen operation, is easy, fast and convenient in test method, and can effectively meet needs of a ten-gigabit network tester market.

The invention discloses a method for detecting N-acetylaspartic acid by using nuclear spin single-state selectivity. According to the method, the nuclear spin single states of three H atoms prepared on the methylene and methine of the N-acetylaspartic acid are prepared, the observation of selectivity in a complex mixed system for N-acetylaspartic acid signals is realized according to a characteristic that the nuclear spin single states are not influenced by a gradient field. The measurement method has the advantages of high sensitivity, high accuracy, small interference, high selectivity, highreproducibility and the like. The method can inhibit the signals of other related interference substances in a system with complex compositions and finally obtain the signals of the N-acetylasparticacid which are required to be observed; and the method is expected to monitor the content and distribution of the N-acetylaspartic acid in the living body of a living thing and has a high applicationvalues in related production and life fields such as the biology and medicine fields.

The invention provides a near infrared spectrum technology based skin lipid content detection method, belongs to the field of study on near infrared spectrum technology, and aims at solving the problems of slow measurement and simple test items in the prior art as well as quickly and accurately synchronously measuring a plurality of components of the skin lipid content. The method comprises the steps of 1, acquiring near infrared spectrum information of a skin lipid sample; 2, measuring the corresponding skin lipid content by SEBUMENTER; 3, processing the spectrum information obtained in step 1; 4, building a skin lipid predication model; 5, detecting the skin lipid of other people, besides the model sample through the model after the predication model is built. As the achievement of the method, a skin detector based on the principle can be developed so as to promote to develop a new skin detector market.

The invention relates to a method for testing the underwater plugging-unplugging performance of an underwater wet type connector. The method comprises: S1, an underwater wet type connector plug is fixed at a front clamp and an underwater wet type connector socket is fixed at a rear clamp; S2, cables of the underwater wet type connector plug and the underwater wet type connector socket are connected with an external testing device; S3, a motor assembly is started and drives the front clamp to drive the underwater wet type connector plug and the underwater wet type connector socket to be plugged; S4, according to a display result of the external testing device, the performance of the underwater wet type connector is determined; and S5, the motor assembly is turned off and testing is ended. According to the invention, the front clamp and the rear clamp are installed in the water tank to connect the connector plug and the connector socket respectively and fixedly and thus the connector performance is tested in an underwater state, so that the accuracy of the underwater wet type connector is improved; the cables of the plug and the socket are led out respectively and are connected withindicator lamps and the connector performance is determined by observing the on-off situation of display lamps.

The invention discloses a method for testing the warping degree of a wafer, and the method comprises the following steps: (1) vertically arranging a standard flat mirror, and enabling the standard flat mirror to be parallel to the direction of gravity; (2) loading a wafer; (3) adjusting the distance between the wafer and the standard flat mirror; (4) adjusting the wafer to be parallel to the standard flat mirror in a face-to-face manner; (5) starting a test module, enabling the test module to perform parallel movement scanning relative to the standard flat mirror, and respectively sampling thedistance from a probe of the sensor to the wafer and the distance from the probe of the sensor to the standard flat mirror through the sensor arranged on the test module; (6) performing data processing program processing on the obtained distance sampling value to obtain a warping degree parameter of the wafer. The method has the advantages that when the wafer is vertically placed for testing, therigidity in the wafer surface is high, the influence of gravity can be greatly reduced, deformation is reduced, and the testing method is convenient and simple.

The invention discloses a test sample and a test method for bonding strength of ceramic coating, and a preparation method of the test sample. Specifically, the test sample comprises a substrate, a ceramic layer, a rigid beam and a support block, wherein the ceramic layer is disposed on the substrate; the support block and the ceramic layer are both adhered to the rigid beam and located on the sameside of the rigid beam with a space there-between, and the length of the support block is smaller than that of the ceramic layer in the first direction. Such structural arrangement, since delamination cracks are initiated at the interface end of one side, effectively avoids the problem of crack propagation instability in the prior art, and obtains the fracture characteristics of the ceramic layerby the displacement-load curve measurement of the loading point, without real-time measurement of the extended length of the coating interface cracks, which makes the test method easier and faster.

The invention relates to the field of micro-electronics testing, in particular to a resistance test method which comprises resistors to be tested and test pads. In the test process, two pads and the resistors to be tested are connected in series through metal wires, a current I is outputted, then voltage of the two pads is tested through using of a probe card, a WAT test Alg platform calculates the absolute value of the difference of the two voltage values, then the absolute value is utilized to be divided by the current, and thus a resistance value of the resistors to be tested can be conveniently obtained. According to the method, traditional resistance test circuits are in series connection, a principle that the current in a series circuit is equal everywhere is used, the current needs to be tested just once, meanwhile the voltage of adjacent pads is tested, resistance values of the resistors to be tested between the adjacent pads can be conveniently figured out according to an algorithm, operating steps are simplified, a great amount of test time is saved, and test cost of enterprises is reduced at the same time.

The invention relates to whole blood urea biosensing test paper. The whole blood urea biosensing test paper comprises a substrate, wherein a work electrode, a reference electrode and connecting wires matched with the work electrode and the reference electrode are printed on the substrate; one end of the substrate is printed with an output terminal of the connecting wire to be connected with a test instrument; and reaction layers capable of reacting with urea are printed on the work electrode and the reference electrode. When the whole blood urea biosensing test paper is adopted for testing blood urea, compared with the enzyme kinetics colorimetry method requiring for a semi-automatic or full-automatic instrument in the prior art, testing is more convenient and quick, so that the blood urea index can be more widely applied to sports monitoring or medical analysis, and a simple and quick test method is provided for general people.

The invention discloses a test device and a test method for horizontal impact of a chair. The test device comprises a testing platform, a mounting bracket and a hammer swing component, wherein the testing platform is used for bearing the tested chair; the mounting bracket is fixed on the testing platform; the hammer swing component comprises a rotating shaft and an impact hammer; the rotating shaft is pivoted on the mounting bracket; the impact hammer is fixed on the rotating shaft and can swing in a preset angle range; the impact surface of the impact hammer is coated by a soft material; and the impact hammer is flush with a part to be tested of the tested chair when swinging to the lowest position. The test method comprises the following steps of: fixing the tested chair and adjusting the height of the impact hammer properly; repeatedly pulling up the impact hammer to a certain height and then freely swinging the impact hammer; impacting the part to be tested of the tested chair; if the tested chair deforms or cracks within a preset impact frequency, judging that the test is passed; and otherwise, judging that the test is not passed. By swinging the impact hammer within a certain angle, impact load in horizontal direction is applied to the part to be tested of the chair when the impact hammer is swung to the lowest position, and the strength in the horizontal direction of the chair can be checked after repeating the operation for many times.

The invention discloses a method and system of testing verticality of two surfaces of an object. The method of testing verticality of two surfaces of an object includes the steps: dividing a parallel beam with certain diameter into two parts after entering a semitransparent mirror through incidence, wherein one part of beam is reflected to the first position of an optical detector by the first surface to be tested of the object, and the other part of beam is reflected to the second position of the optical detector by the second surface to be tested of the object; adjusting the placing angle of the object, fixing the object and recording the second position when the first position is coincided with the center of the optical detector; and according to the second position and the vertical distance between the first surface to be tested and the optical detector, acquiring the vertical deviation degree between the first surface to be tested and the second surface to be tested. The method of testing verticality of two surfaces of an object can directly acquire the vertical deviation degree and the vertical deviation direction between the two surfaces of the object only according to the position of the beam which is reflected to the optical detector and the vertical distance between the surface to be tested and the optical detector, thus saving the complicated result processing process, and being efficient, simple and convenient.

The invention relates to a miniature heavy-load uniaxial pressure test system with a mechanical arm and a test method, which belong to the technical field of rock mechanics tests. The test system comprises a loading mechanism, a transmission mechanism, a control mechanism, a power distribution mechanism and a supporting seat, wherein the loading mechanism is arranged on the supporting seat, the transmission mechanism penetrates through the supporting seat to be connected with the loading mechanism, the transmission mechanism is connected to the control mechanism, and the transmission mechanism and the control mechanism are both connected to the power distribution mechanism. The power distribution mechanism supplies power to the transmission mechanism and the control mechanism, and the control mechanism controls the transmission mechanism to apply load to the loading mechanism. Miniature heavy load is achieved, the test precision is high, control is easy, the test method is simple, test data are complete, and students can obtain complete test results and understand the rock strength constitutive relation.

The invention discloses an imaging moment calibration precision measurement method and system for a spatial optical remote-sensing camera. The method comprises the following steps: calculating a relative time difference value of an imaging moment according to values recorded by a local counter when a GPS hardware pulse per second signal reaches a video processor and the video processor sends an imaging horizontal synchronizing signal, comparing the calculated relative time difference value of the imaging moment with a relative time difference value, measured by an oscilloscope, of the imagingmoment, and calibrating the imaging moment precision of the remote-sensing camera according to delay time of hardware. The imaging moment calibration precision measurement method disclosed by the invention is applicable to calibration of the imaging moment precision of all optical remote-sensing camera based on the GPS hardware pulse per second signal. The test method has the characteristics of being simple and convenient to operate, easy to standardize, and stable and reliable in test result, and has practical guiding significance for unified measurement of the imaging moment calibration precision. The method is high in applicability and favorable for building a unified measurement method standard, and analysis personnel can compare and analyze key technology indexes more easily.

The invention discloses a cell current and current power consumption test system. The system comprises a power supply module, a MCU main control module, an external large current metering module, a cell current metering module, a load test module, a data storage module and a USB communication module. The power supply module is electrically connected to the MCU main control module, the external large current metering module, the cell current metering module, the data storage module and the USB communication module. The MCU main control module is electrically connected to the external large current metering module, the cell current metering module, the data storage module and the USB communication module. The cell current metering module is electrically connected to the load test module. Thesystem has the following advantages that the test method is simple and rapid, labor saving and time saving are achieved, the cost of test equipment is low and test efficiency can be increased; and precision is high, and data precision in a test link can be effectively increased.

The invention provides a method for testing a damaged point of a non-conductive layer on the surface of a metal part. The method comprises the following steps: material supply: the metal part provided with the non-conductive layer on the surface is provided, and an electrolysis device and an electrolyte solution are provided; construction of an electrolysis system: a hole is formed in the metal part, the metal part is immersed into the electrolyte solution after a hole point is formed, an anode is connected with the hole point of the metal part, a cathode makes contact with the electrolyte solution, and the electrolysis system is constructed; testing: a power supply is started to electrify the electrolysis system, and the damaged point of the non-conductive layer on the surface of the metal part is determined by checking the color change condition of the electrolyte solution on the surface of the metal part. The method for testing the damaged point of the non-conductive layer on the surface of the metal part is simple and rapid.

The invention provides a laser light transmittance testing device and testing method thereof. The laser light transmittance testing device comprises a laser light source, which is used for emitting alaser beam of a specified wavelength; a optical component, which comprises a reflecting lens arranged opposite to the laser light source and an attenuation sheet arranged opposite to the reflecting lens and is used for weakening the energy density of the laser beam to be within a preset detection range; a loading device, which is arranged opposite to the attenuation sheet and is used for placing ameasured object with the light transmittance to be measured; and a light detection device, which is used for calculating the energy density of the laser beam and the light transmittance of the measured object. Compared with the prior art, the laser light transmittance testing device provided by the invention uses the laser light source with the same wavelength as a welding light source, the lightemitting characteristic is the same as the welding light source, and the measured light transmittance of the plastic product has more reference significance for the subsequent welding process. Meanwhile, the testing method of the laser light transmittance testing device is simple and quick, and the light transmittance of the plastic product can be quickly obtained.

The invention discloses a photocoupler testing device, which comprises a power module, an MCU module, a communication module, a first testing module, a second testing module and a third testing module, wherein the power module is electrically connected with the MCU module, the communication module, the first testing module, the second testing module and the third testing module respectively; and the MCU module is electrically connected with the communication module, the first testing module, the second testing module and the third testing module respectively. The electrical appliance parameters of the photocoupler are measured respectively by the first testing module, the second testing module and the third testing module respectively, the device has a low price, the detected parameters are multiple, the product quality and the detection efficiency can be improved, the product fault rate is reduced, and the overall stability is improved.

The invention discloses a method for performing nondestructive detection on a distribution transformer winding material with two ends heated. The method comprises the following steps: S1, connecting the two ends of a to-be-detected winding with a conducting rod respectively through copper bar connecting wires; S2, fixedly arranging a heating module on the conducting rod; S3, controlling heating ofthe heating module to heat the conducting rod at the two ends of the winding consistently; S4, connecting a thermoelectric potential measuring instrument with the conducting rod through a thermoelectric potential measuring wire and acquiring thermoelectric potential Ev of the whole distribution transformer; and S5, performing detection judgment on the material of the to-be-detected winding according to the thermoelectric potential Ev acquired by the thermoelectric potential measuring instrument. The method has the following beneficial effects: the two ends of the winding are heated simultaneously and the heating temperature is maintained to be the same, so that thermoelectric potential error generated at the connection position of the thermoelectric potential measuring wire (wire clip) and the conducting rod during thermoelectric potential measurement is avoided, and the winding material is accurately distinguished to be copper or aluminum under the condition of not damaging the distribution transformer winding.